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Wyświetlanie 1-54 z 54
Tytuł:
Potentiometric detection of the metabolic activity of human tumor cells
Autorzy:
Kwapiszewska, K.
Stępień, K.
Sendys, P.
Chudy, M.
Brzózka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/115519.pdf
Data publikacji:
2013
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
cancer
in vitro cell culture
potentiometry
cell culture monitoring
Opis:
Monitoring of cellular viability is a key part of toxicological assays in vitro. On-line monitoring of metabolic activity would be particularly useful for evaluation of responses to potential therapeutic compounds. Current assays are mostly based on fluorescent dyes and optical detection methods. These methods offer high sensitivity and specificity, however are not suitable for long-term on-line observations. Electrochemical methods can be an alternative for current protocols. Electrochemical detection is low cost and label-free, therefore suitable for long-term cell culture monitoring. In this work investigations on human cancer cells viability will be presented. Cells were cultured as two-dimensional monolayer or three-dimensional spheroids. Different cell culture media were examined. Potentiometric detection was used for continuous monitoring of cell culture as well as end-point investigations. Different growth phases were identified using applied method. Finally, response to an anticancer drug was successfully observed.
Źródło:
Challenges of Modern Technology; 2013, 4, 1; 41-46
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of cat bone marrow and adipose tissue cell cultures
Autorzy:
Mazurkevych, A.
Malyuk, M.
Kovpak, V.
Kovpak, O.
Kharkevych, Y.
Jakubczak, A.
Gryzinska, M.
Powiązania:
https://bibliotekanauki.pl/articles/2087658.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
stem cells
bone marrow cell culture
adipose tissue cell culture
cytogenetic assays
Źródło:
Polish Journal of Veterinary Sciences; 2018, 21, 3; 549-557
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fractal morphology of Beta vulgaris L. cell suspension culture permeabilized with Triton X-100
Autorzy:
Arenas-Ocampo, M.
Alamilla-Beltran, L.
Vanegas-Espinoza, P.E.
Camacho-Diaz, B.H.
Campos-Mendiola, R.
Gutierrez-Lopez, G.
Jimenez-Aparicio, A.
Powiązania:
https://bibliotekanauki.pl/articles/25018.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
morphology
Beta vulgaris
cell suspension culture
Triton X-100
morphometry
cell culture
chemical agent
Opis:
n this work, morphology of Beta vulgaris L. cells permeabilized with 0.7 mM of Triton X-100® was evaluated using digital image processing and concepts of fractal dimension (perimeter- area relations). Important morphometric changes were found when the contact-time with chemical agent was increased.The size of cells decreased, the cells lost the roundness and their shape was more sinuous; this behaviour was a result of a probable shrinkage caused by the excess of exposure with the permeabili- zation agent. Morphology of B. vulgaris cells after permeabili- zation, exhibited a fractal nature since the slope of the ratio of the logarithm of the perimeter vs logarithm of the area was higher than unit. Fractal geometry of the cell morphology was affected as a re- sult of the exposure to Triton X-100®. Those changes can be attri- buted to the loss of turgor and structure of the cell wall.
Źródło:
International Agrophysics; 2012, 26, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of citrus flavanones on the redox homeostasis in cells exposed to oxidative stress – studies in vitro
Wpływ flawanonów cytrusowych na homeostazę redoks komórek narażonych na stres oksydacyjny – badania in vitro
Autorzy:
Kurzeja, Ewa
Synowiec-Wojtarowicz, Agnieszka
Spiołek, Katarzyna
Derewniuk, Małgorzata
Pawłowska-Góral, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/1035565.pdf
Data publikacji:
2016
Wydawca:
Instytut Medycyny Wsi
Tematy:
"cell culture"
"flavanones"
"oxidative stress"
"redox homeostasis"
Opis:
Introduction: Flavanones (an important group of antioxidants in citrus fruits) are beneficial for health, which is connected with their anti-inflammatory, anti-atherogenic and anti-carcinogenic properties. The present study was undertaken to investigate whether – and in what way – the presence of flavanones influences the redox homeostasis of fibroblasts and alleviates the effects of oxidative stress. Material and methods: The study was conducted on murine fibroblast cell cultures with the addition of flavanones (hesperidin, hesperetin, naringin, naringenin), exposed to oxidative stress (Fe/Asc). In cell homogenates, the activity of superoxide dismutase (SOD) and glutathione peroxidase (GPx) was measured; in the medium, the concentration of nitric oxide was measured. Results and conclusion: Our results demonstrate that the addition of naringenin, hesperetin, naringin and hesperidin has a protective effect on cells subjected to oxidative stress The changes observed are particularly visible in the case of aglycone forms of both compounds. Despite the protective properties against oxidative stress which flavanones display, we determined distrubances in redox homeostasis in comparison to the control culture.
Wstęp: Flawanony, będące głównymi związkami bioaktywnymi cytrusów, wykazują działanie prozdrowotne, co wynika z ich właściwości przeciwzapalnych, przeciwmiażdżycowych i przeciwnowotworowych. Celem badania była ocena wpływu flawanonów na homeostazę redoks fibroblastów oraz czy ich obecność łagodzi skutki stresu oksydacyjnego. Materiały i metody: Badanie przeprowadzono na hodowlach mysich fibroblastów z dodatkiem flawanonów (hesperydyna, hesperetyna, naringina, naringenina) poddanych stresowi oksydacyjnemu (Fe/Asc). W homogenatach komórkowych oznaczono aktywność dysmutazy ponadtlenkowej (SOD) i peroksydazy glutationowej (GPx), a bezpośrednio w pożywce stężenie tlenku azotu. Wyniki i wnioski: Wyniki naszej pracy wskazują, że dodatek naringeniny, hesperetyny, naringiny i hesperydyny działa ochronnie na komórki poddane stresowi oksydacyjnemu. Pomimo stwierdzonego ochronnego działania flawanonów zaobserwowaliśmy również zaburzenie homeostazy redoks w odniesieniu do hodowli kontrolnej.
Źródło:
Medycyna Środowiskowa - Environmental Medicine; 2016, 19, 2; 32-39
1505-7054
2084-6312
Pojawia się w:
Medycyna Środowiskowa - Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biomimetyczne matryce do przestrzennej hodowli komórek
Biomimetic matrices for spatial cell culture
Autorzy:
Stefanek, A
Ciach, T.
Powiązania:
https://bibliotekanauki.pl/articles/2072887.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
enkapsulacja
hodowla komórek
alginian
encapsulation
cell culture
alginate
Opis:
Celem badań było opracowanie biomimetycznej matrycy z nośnikiem tlenu do długoterminowej hodowli komórek. Przedstawiono wyniki wstępne obejmujące opracowanie warunków procesu produkcji dwufazowych matryc oraz przeprowadzenie hodowli ludzkich chondrocytów w uproszczonej matrycy. Przeprowadzone badania dowodzą, iż rozmiar produkowanych mikrokapsułek maleje wraz ze wzrostem częstotliwości drgań dyszy. Hodowla komórek CP5 wykazuje konieczność zwiększenia stopnia dotlenienia enkapsulowanych komórek.
The purpose of this work was to develop biomimetic matrix with oxygen carrier for long-term cell culture. Preliminary research results including: microcapsules production conditions and results of human chondrocytes culture in simplified matrices are presented. The size of microcapsules decreases with the increase of nozzle vibration frequency. The chondrocytes culture showed that a greater oxygen supply to the cultured cells is needed.
Źródło:
Inżynieria i Aparatura Chemiczna; 2014, 4; 294--295
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inżynieria komórkowa w systemach lab-on-a-chip
Cell engineering in lab-on-chip systems
Autorzy:
Tomecka, E.
Tokarska, K.
Jastrzębska, E.
Chudy, M.
Brzózka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/172147.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
inżynieria komórkowa
mikrosystemy przepływowe
dwuwymiarowa hodowla komórkowa
trójwymiarowa hodowla komórkowa
cell engineering
microfluidic systems
two-dimensional cell culture
three-dimensional cell culture
Opis:
Lab-on-a-chip systems are promising tools in the field of cell engineering. Microfluidic systems are integrated microlaboratories consisting of many microstructures such as microchannels and microchambers, which can be used for cell analysis and cell culture. Appropriately designed geometry of the chip allows to mimic in vivo conditions. Microsystems enables continuous culture medium perfusion. During cell culture, regulation of the flow rate of medium is possible, which allows to control conditions of the cultivation. In this paper we present a review of microfluidics systems which are used in cell engineering. We describe methods of microsystems fabrication, parameters which influence cell proliferation in microscale and examples of microsystems for cell analysis and cell culturing. Microfluidic systems for maintaining cell culture are mainly fabricated of poly(dimethylsiloxane) (PDMS) and glass, non-toxic materials for cells. The most commonly used method for fabrication of PDMS microsystems is photolithography and replica molding techniques. Cell culture in microsystems can be carried out in two ways: as a two-dimensional (2D) cell culture and three-dimensional (3D) cell culture. In two-dimensional culture cells grow as a monolayer on a flat surface of microchambers or microchannels. Microsystems for two-dimensional cell culture are widely described in the literature. They are mainly used for: (i) cell proliferation after exposure to external stimuli, (ii) testing the activity of cytotoxic drugs, (iii) interactions and cell migration and (iv) the evaluation of procedures applicable in tumor therapy e. g. photodynamic therapy. However, two-dimensional cell culture do not mimic fully in vivo conditions. In living organisms cells grow spatially creating three-dimensional structures like tissues. Therefore, nowadays microsystems for 3D cell culture are being developed intensively. Three-dimensional cell culture in microfluidic systems can be achieved in three ways: by the design of suitable geometry and topography of microchannels, by the use of hydrogels or by spheroids formation. Three-dimensional cell culture in microfluidic systems are much better experimental in vitro models than cell culture in traditional culture vessels. It is the main reason why microsystems should be still improved, as to become widely used research tools in cellular engineering.
Źródło:
Wiadomości Chemiczne; 2015, 69, 9-10; 909-929
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selection of frost-tolerant cell lines from cell cultures of Solanum tuberosum L.
Autorzy:
Anjum, Muhammad Akbar
Powiązania:
https://bibliotekanauki.pl/articles/2198823.pdf
Data publikacji:
2001-06-21
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
potato
Solanum
cell culture
proline
hydoxyproline resistance
frost tolerance
Opis:
Fourteen hydroxyproline-resistant cell lines were selected by plating 7 days old cell suspensions of Solanum tuberosum L. cvs. Desiree and Maris Piper on a cell plating medium containing 5 or 10 mM hydroxyproline (hyp). Cell suspensions were either plated directly on selective media or after mutagenic treatment with gamma rays at a dose of 20 Gy or after freezing to –6°C. The frequency of resistant colonies varied from 0.15 to 0.35 x 10-6. Almost all the selected lines possessed increased levels of frost tolerance as compared to their non-selected controls except one indicating that hyp resistance and frost tolerance are not necessarily linked.
Źródło:
Plant Breeding and Seed Science; 2001, 45, 1; 3-10
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cardiac endothelial cells isolated from mouse heart - a novel model for radiobiology
Autorzy:
Jelonek, Karol
Walaszczyk, Anna
Gabryś, Dorota
Pietrowska, Monika
Kanthou, Chryso
Widłak, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1039895.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
cardiac endothelial cells
radiation
cardiotoxicity
primary cell culture
stress response
Opis:
Cardiovascular disease is recognized as an important clinical problem in radiotherapy and radiation protection. However, only few radiobiological models relevant for assessment of cardiotoxic effects of ionizing radiation are available. Here we describe the isolation of mouse primary cardiac endothelial cells, a possible target for cardiotoxic effects of radiation. Cells isolated from hearts of juvenile mice were cultured and irradiated in vitro. In addition, cells isolated from hearts of locally irradiated adult animals (up to 6 days after irradiation) were tested. A dose-dependent formation of histone γH2A.X foci was observed after in vitro irradiation of cultured cells. However, such cells were resistant to radiation-induced apoptosis. Increased levels of actin stress fibres were observed in the cytoplasm of cardiac endothelial cells irradiated in vitro or isolated from irradiated animals. A high dose of 16 Gy did not increase permeability to Dextran in monolayers formed by endothelial cells. Up-regulated expression of Vcam1, Sele and Hsp70i genes was detected after irradiation in vitro and in cells isolated few days after irradiation in vivo. The increased level of actin stress fibres and enhanced expression of stress-response genes in irradiated endothelial cells are potentially involved in cardiotoxic effects of ionizing radiation.
Źródło:
Acta Biochimica Polonica; 2011, 58, 3; 397-404
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
UVB PROTECTIVE, ANTI-AGING, AND ANTI-INFLAMMATORY PROPERTIES OF AQUEOUS EXTRACT OF WALNUT (JUGLANS REGIA L.) SEEDS
Autorzy:
Przekora, Agata
Belcarz, Anna
Kowalczyk, Katarzyna
Wójcik, Michał
Wojciechowska, Katarzyna
Ginalska, Grażyna
Powiązania:
https://bibliotekanauki.pl/articles/895478.pdf
Data publikacji:
2018-10-31
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
cell culture
Reactive oxygen species
antioxidant
phenolic compounds
collagenase
UVB radiation
Opis:
Walnut (Juglans regia L., fam. Juglandaceae) fruit is found to be very rich in phenolic compounds and thus to show wide spectrum of biological activities like antioxidant, anti-inflammatory, or antitumour properties. Ethanol or methanol are preferentially used for preparation of walnut extracts for cosmetic applications. However, it is commonly known that alcohol causes dehydration and redness of the skin. The aim of this work was to prepare aqueous extract of undamaged walnut seeds rich in pellicles and to evaluate its antioxidant, anti-apoptotic, anti-inflammatory, and anti-aging properties in vitro. Conducted research clearly demonstrated that simple water extraction of undamaged kernels with pellicles allows to obtain rich in phenolic compounds (36-38 mg per g of lyophilisate) walnut extract, which protects fibroblasts and keratinocytes against oxidative stress induced by UVB dose of 35 mJ/cm2 (5-6-h exposure on a sunny day), protects keratinocytes against UVB-induced apoptotic death, limits the development of the inflammation in epidermis, and also possesses ability to inhibit collagenase and elastase. Thus, obtained aqueous walnut extract (at relatively low concentration of 5 µg/ml) is found to be a promising compound of sunscreen and anti-aging cosmetic formulations.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2018, 75, 5; 1167-1176
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hepatitis C - new developments in the studies of the viral life cycle
Autorzy:
Rychłowska, Małgorzata
Bieńkowska-Szewczyk, Krystyna
Powiązania:
https://bibliotekanauki.pl/articles/1040855.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
hepatitis C virus
HCV replicons
HCVcc-cell culture-derived
HCV pseudoparticles
Opis:
Hepatitis C virus (HCV) is a causative agent of chronic liver disease leading to cirrhosis, liver failure and hepatocellular carcinoma. The prevalence of HCV is estimated as 3% of the world population and the virus is a major public health problem all over the world. For over 16 years, since HCV had been discovered, studies of the mechanisms of the viral life cycle and virus-host interactions have been hampered by the lack of a cell culture system allowing the virus to be grown in laboratory conditions. However, in recent years some new model systems to study HCV have been developed. The major breakthrough of the last two years was the cell culture system for maintaining the virus in an adapted hepatocyte-derived cell line. This review describes the techniques and applications of most of the in vitro systems and animal models currently used for working with hepatitis C virus.
Źródło:
Acta Biochimica Polonica; 2007, 54, 4; 703-715
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Novel designs and technologies for cell engineering
Autorzy:
Ziółkowska, K.
Chudy, M.
Dybko, A.
Brzózka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/115526.pdf
Data publikacji:
2011
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
lab-on-a-chip
multicellular tumor spheroid
cancer
in vitro cell culture
cell engineering
Opis:
Microfluidic devices, such as lab-on-a-chip systems, are highly advantageous for cell engineering and cell based assays. It is a particularly useful approach for development of the in vitro cellular systems mimicking the in vivo environment. In this paper, a novel lab-on-a-chip device for three-dimensional human cell culture and anticancer drug testing is presented. Cells were cultured as Multicellular Tumor Spheroids (MCTS) — the best cancer tumor model developed so far. Diff erent designs were tested and novel technique of microfabrication in poly(dimethylsiloxane) was developed. MCTS were cultured in a system of polymeric microwells, with the network of microfluidic channels for culture medium flow. Design included optimal shear stress and proper nutrients supply for cultured cells. Final design provided MCTS culture for four weeks with the homeostasis-like state achievement, which is characteristic for the in vivo situation.
Źródło:
Challenges of Modern Technology; 2011, 2, 4; 54-60
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical modelling of microflow and μPIV measurementin microfluidic cell culture device
Modelowanie numeryczne mikroprzepływu i pomiar μPIV w mikroprzepływowej hodowli komórek
Autorzy:
Loska, Michał
Powiązania:
https://bibliotekanauki.pl/articles/101687.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydział Inżynierii Środowiska i Energetyki. Instytut Techniki Cieplnej
Tematy:
microflow
CFD
microfluidics
cell culture
μPIV
mikroprzepływy
mikrourządzenia
hodowla komórek
Opis:
Microfluidics is a relatively young field of study and production of microfluidic devices still has roomfor improvement. Microfluidic devices can be found in many applications, especially in biology due toimmense capabilities to mimic physiological conditions of a living organism. To make the productionmore convenient and predict the conditions in designed microdevice CFD modelling can be used. Itallows predicting, among the others, flow pattern through microchannels and thermal conditions. It cansave expensive and time-consuming trial and error method in microdevice prototyping as a modificationof geometry and working conditions is much simpler in CFD modelling. In this work construction of the CFD model of flow through microfluidic cell culture device is presented. To verify the CFD modelan analytical solution was used. The CFD model results were very close to analytical ones, the averagerelative difference between the flow velocity was equal to 2.57%. Analysis of flow field results indicatedpossible improvement of medicine transport to cell culture chambers. The attempt to use simplified μPIV measurement was also a part of the research. These results were compared to the analytical model, the average relative error was equal to 34.55%. The main purpose of measurement attempt was to gainexperience inμPIV measurement so the average relative error value was still tolerable. Thanks to this attempt, useful conclusions were drawn allowing for more accurate measurements in the future.
Badania nad urządzeniami mikroprzepływowymi to stosunkowo młoda dziedzina nauki, a w produkcji urządzeń mikroprzepływowych wci ̨a ̇z jest miejsce na poprawę. Urządzenia mikroprzepływowe znajdują wiele zastosowań, zwłaszcza w biologii ze względu na ogromne możliwości w naśladowaniu warunków fizjologicznych ̇żywego organizmu. Aby ułatwić produkcję i przewidzieć warunki panujące w projektowanym mikrourządzeniu, można zastosować modelowanie CFD. Pozwala ono przewidzieć m.in. warunki przepływu przez mikrokanały oraz warunki termodynamiczne w nich panujące. Modelowanie CFD pozwala zaoszczędzić na kosztownej i czasochłonnej metodzie prób i błędów w produkcji mikrourządzeń, ponieważ ̇z modyfikacja geometrii i warunków pracy jest znacznie prostsza w modelowaniu CFD. W tej pracy przedstawiono konstrukcję modelu CFD przepływu przez mikroukład w systemie mikro przepływowej hodowli komórek. Aby zweryfikować model CFD, skonstruowano model analityczny. Wyniki modelu CFD były bardzo zbliżone do wyników analitycznych, ponieważ średnia względna różnica między profilami prędkości przepływu wynosiła 2,57%. Analiza wyników polowych wskazała na możliwą poprawę efektywności dostarczenia leku do komór hodowlanych. Opracowanie wyników próbnego pomiaru μPIV było równie ̇z częścią tego badania. Po opracowaniu wyników, porównano je z wynikami modelu analitycznego - średni błąd względny wyniósł 34,55%. Głównym celem próbnego pomiaru było zdobycie doświadczenia w pomiarze μPIV, więc średnia wartość błędu względnego była nadal dopuszczalna. Dzięki tej próbie wyciągnięto użyteczne wnioski pozwalające na dokładniejsze pomiary w przyszłości.
Źródło:
Archiwum Instytutu Techniki Cieplnej; 2019, 6; 55-72
2451-277X
Pojawia się w:
Archiwum Instytutu Techniki Cieplnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biomimetic alginate/perfluorocarbon microcapsules - tthe effect on in vitro metabolic activity and long-term cell culture
Autorzy:
Stefanek, Agata
Kulikowska-Darłak, Aleksandra
Bogaj, Karolina
Nowak, Aleksandra
Dembska, Joanna
Ciach, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2173417.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
alginian
mikrokapsułki
hodowla komórkowa
perfluorowęglowodory
metabolizm
alginate
microcapsules
cell culture
perfluorocarbons
metabolism
Opis:
Cell encapsulation seems to be a promising tool in tissue engineering. However, it has been shown to have several limitations in terms of long-term cell cultures due to an insufficient oxygen supply. In this study we propose the use of novel microcapsules designed for long-term cell culture consisting of an alginate shell and perfluorocarbon (PFC) core, which works as a synthetic oxygen carrier and reservoir. The influence of PFC presence in the culture as well as the size of structures on cell metabolism was evaluated during 21-day cultures in normoxia and hypoxia. We showed significant improvement in cell metabolism in groups where cells were encapsulated in hydrogel structures with a PFC core. The cells maintained a typical metabolism (oxidative phosphorylation) through all 21 days of the culture, overcoming the oxygen supply shortage even in large structures (diameter ¡ 1 mm). Applying PFC in alginate matrices can improve cell metabolism and adaptation in long-term cell cultures.
Źródło:
Chemical and Process Engineering; 2022, 43, 1; 81--95
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena właściwości użytkowych rusztowań komórkowych o strukturze gąbczastej oraz wzrostu na nich fibroblastów
Evaluation of functional properties and fibroblast growth on squashy cellular scaffolds
Autorzy:
Kruk, A.
Gadomska-Gajadhur, A.
Dulnik, J.
Rykaczewska, I.
Ruśkowski, P.
Sebai, A.
Synoradzki, L.
Powiązania:
https://bibliotekanauki.pl/articles/947150.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:
rusztowania komórkowe
polilaktyd
hodowle komórkowe
fibroblasty
cellular scaffolds
polylactide
cell culture
fibroblasts
Opis:
Zbadano wpływ dodatku ciekłych prekursorów porów na morfologię, porowatość i właściwości mechaniczne polilaktydowych rusztowań komórkowych. Rusztowania otrzymano metodą mokrej inwersji faz w wariancie freeze extraction. Oceniono cytotoksyczność wybranych rusztowań w stosunku do fibroblastów mysich oraz ich przydatność do hodowli komórkowych. Wykazano, że dodatek prekursora porów dopolilaktydu korzystnie zmienia morfologię wytworzonych rusztowań, jednocześnie pogarszając ich wytrzymałość mechaniczną. Stwierdzono, że polilaktydowe rusztowania komórkowe z powodzeniem mogą być wykorzystywane do hodowli komórkowych.
The effect of liquid pore precursor addition on the morphology, porosity and mechanical properties of polylactide scaffolds was investigated. The scaffolds were obtained by inversion phase method in freeze extraction mode. Selected scaffolds were subjected to a cytotoxicity test using mouse fibroblastcells. It has been shown that the addition of pore precursors favorably changes the morphology of scaffolds at the cost of decreased mechanical strength. It has been found that polylactide cellular scaffolds can be successfully used forcell culture.
Źródło:
Polimery; 2018, 63, 4; 270-274
0032-2725
Pojawia się w:
Polimery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fructose Affects Fatty Acids Profile in Liver Cells in Vitro and In Vivo Models in Rats
Autorzy:
TYSZKA- CZOCHARA, Malgorzata
GDULA- ARGASIŃSKA, Joanna
PAŚKO, Paweł
LIBROWSKI, Tadeusz
GAWEŁ, Magdalena
OLBERT, Magdalena
LIPKOWSKA, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1033740.pdf
Data publikacji:
2014
Wydawca:
Zakład Opieki Zdrowotnej Ośrodek Umea Shinoda-Kuracejo
Tematy:
Diet
Fatty acids profile
Fructose
Hep G2 cell culture
Lipid metabolism
Opis:
It was reported that dietary fructose imposes a number of effects on lipid metabolism including hypertriglyceridemia. The daily intake of fructose in humans is mainly due to sucrose. It was reported that the consumption is still increasing, making a background for health implications. The mechanism of metabolic disorders is poorly understood, but a lot of studies indicate that the liver lipid homeostasis deregulation is essential for a fructose effect on metabolism. The aim of the study is to estimate if fructose affects the profile of fatty acids in in vitro and in vivo models. In this study in vitro and in vivo experiments were conducted to assess the effect of dietary fructose on the fatty acid profile in the cell culture or in the liver of rats. The results showed that in the fructose experimental groups, both in the cell and liver homogenates, the content of the saturated fatty acids were significantly higher than in control groups. According to the obtained data fructose in the medium and in the diet affects saturation of fatty acids in the cell cultures and in the livers of rats. The findings obtained in the experiments support the thesis that fructose influences the homeostasis of lipid metabolism in the liver and may give an opportunity to discuss the limitation of the content of this kind of sugar in food.
Źródło:
Medicina Internacia Revuo; 2014, 26, 102; 42- 46
0465-5435
Pojawia się w:
Medicina Internacia Revuo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ reaktywności jonowej biomateriałów na żywotność komórek in vitro
The effect of biomaterials ion reactivity on cell viability in vitro
Autorzy:
Przekora, A.
Kołodyńska, D.
Ginalska, G.
Ślósarczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/285341.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
reaktywność jonowa
kompozyt
cytotoksyczność
hodowla komórek
ion reactivity
composite
cytotoxicity
cell culture
Opis:
Powszechnie wiadomo, że reaktywne jonowo biomateriały indukują różne interakcje z otaczającym środowiskiem, powodując zmiany stężenia jonów, zwłaszcza kluczowych jonów takich jak wapń, magnez i fosfor, co może wpływać na metabolizm i żywotność komórek. Głównym składnikiem części mineralnej kości i zębów jest hydroksyapatyt (HAp) (Ca10(PO4)6(OH)2). W celu polepszenia własności mechanicznych oraz poręczności chirurgicznej hydroksyapatytu można połączyć go z dodatkowym komponentem organicznym np. polisacharydowym. W niniejszej pracy oznaczano reaktywność jonową oraz cytotoksyczność 2 typów kompozytów na bazie glukanu (kompozytu glukan-HAp i kompozytu glukan-C-HAp) oraz poszczególnych ich składników: wysokoporowatych granul hydroksyapatytu (HAp), wysokoporowatych granul HAp węglanowo-magnezowych (C-HAp) oraz glukanu. Reaktywność jonową testowanych materiałów oznaczono za pomocą absorpcyjnej spektrometrii atomowej (ASA). Badania in vitro przeprowadzono z zastosowaniem linii komórkowej hFOB 1.19 (ludzkie płodowe osteoblasty) oraz pierwotnej hodowli fibroblastów skóry (HSF). Cytotoksyczność ekstraktów z biomateriałów określono z użyciem 2 testów - MTT i NRU. Wyniki badań wyraźnie wskazały, że dodatek wysokoporowatych granul HAp i C-HAp do glukanu powoduje, że kompozyt jest reaktywny jonowo, co wpływa na metabolizm i żywotność hodowanych komórek.
It is widely known that surface-reactive biomaterials induce various interaction with surrounded environment, causing changes in the ion concentration, especially with respect to the crucial ions such as calcium, magnesium and phosphorous, what may significantly affect the cell metabolism and viability. Hydroxyapatite (HAp) (Ca10(PO4)6(OH)2) is the main inorganic component of bones and teeth. In order to improve mechanical properties and surgical handiness of hydroxyapatite, an organic component e.g. polysaccharide can be added. In this work, the ion reactivity and cytotoxicity of 2 types of glucan-based composites (composite glucan-HAp and composite glucan-C-HAp) were evaluated. Additionally, the ion reactivity and cytotoxicity of each component of the composites: highly porous hydro- xyapatite (HAp), highly porous carbonated-Mg-HAp (C-HAp) and glucan were evaluated. The ion reactivity of tested materials was assessed by atomic absorption spectrometry (AAS). In vitro tests were carried out using hFOB 1.19 cell line (human fetal osteoblast cells) and human skin fibroblast primary cell culture (HSF). The cytotoxicity of biomaterials extracts was estimated by 2 methods - MTT and NRU. Our studies clearly indicated that addition of highly porous HAp and C-HAp granules to the glucan, make the composite ion reactive, what affects the metabolism and viability of cultured cells.
Źródło:
Engineering of Biomaterials; 2012, 15, 114; 59-65
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New microfluidic device for lactate dehydrogenase (LDH) activity analysis
Autorzy:
Jędrych, E.
Mazur, M.
Grabowska-Jadach, I.
Brzózka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/115778.pdf
Data publikacji:
2012
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
lactate dehydrogenase (LDH) activity
microfluidic system
PDMS
adherent cell culture
cytotoxicity analysis
Opis:
In this paper, we present cytotoxicity analysis (determination of lactate dehydrogenase — LDH activity performed in a designed and fabricated microfl uidic system. This method allowed for analysis of a supernatant collected from A549 (human lung cancer) and HT-29 (human colon cancer epithelial) cells, which were incubated for 24 h with selected compounds. LDH is an intracellular enzyme present in tissues, which is released into the supernatant caused by membrane damage or cell lyses. In our tests, LDH-Cytotoxicity Assay Kit (BioVision) was used. The toxic eff ect of drugs was measured in the developed microsystem made of PDMS (poly(dimethylsiloxane)). Analytical reaction took place in the special designed microchannel geometry. Then, the LDH activity was measured at 490 nm using spectrophotometer. In subsequent experiments, appropriate conditions for measurements using a microfl uidic system were chosen. It was found that the selected reagent is sensitive to temperature changes and light exposure. Reaction time in the microsystem was determined by changes of fl ow rates of reagents. Afterwards, for the various reaction time, the toxic eff ect of 5-fl uorouracil, celecoxib and 1,4-dioxane was performed. The obtained results were compared with the results carried out in 96-well plates. Based on these results, it was noted that the enzymatic reaction time in the microsystem is shorter than in 96-well plate. Moreover, the advantage of using microsystem is also the small amount of reagents.
Źródło:
Challenges of Modern Technology; 2012, 3, 4; 3-8
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
‘Lab-on-a-chip’ for cell engineering: towards cellular models mimicking in vivo
Autorzy:
Ziółkowska, K.
Chudy, M.
Dybko, A.
Brzózka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/115885.pdf
Data publikacji:
2011
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
Lab-on-a-chip
microfluidic tools
cancer
cell culture
Multicellular Tumor Spheroid (MCTS)
Opis:
One of the main scopes of modern cell engineering is development of cellular models that can replace animals in drug screening and toxicological tests, so called alternative methods. Construction of the alternative model is a very challenging task due to a richness of factors creating the in vivo environment. The monolayer cell culture — cultivation of adhesive cells on artificial surfaces such as glass or polymer — lack most of the in vivo-like interactions, but still is the only tool for the majority of applications. One of the most prospective approaches on mimicking in vivo environment is “Lab-on-a-chip” technology. Microfluidic devices offer lots of advantages over traditional in vitro culture, e.g. much higher cell volume-to-extracellular fluid volume ratio or possibility of regulation of hydrodynamic stress. This presentation aims to introduce latest advances of our team in microfluidic cell culture devices. Our novel approach is to cultivate three dimensional multicellular aggregates (spheroids) in microenvironments arranged in a microfluidic system. The geometry and materials of the system allow for cultivation, observation and analysis of multicellular spheroids. The results presented concern multicellular tumor spheroids (MCTS) rising from human cancer cells, which are considered to represent most of the conditionings of cancer tumor in vivo. The fully developed MCTS microdevice will be a reliable tool for anticancer drug screening, as the results most likely will be in a close accordance with the results obtained in vivo.
Źródło:
Challenges of Modern Technology; 2011, 2, 1; 79-82
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trastuzumab Efficacy Quantified by Fluorine-19 Magnetic Resonance Imaging
Autorzy:
Bartusik-Aebisher, Dorota
Aebisher, David
Czmil, Mrs Anna
Mazur, Damian
Powiązania:
https://bibliotekanauki.pl/articles/895489.pdf
Data publikacji:
2020-06-29
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
trastuzumab
magnetic resonance imaging
breast cancer cells
three-dimensional cell culture
Trastuzumab conjugates
Opis:
The purpose of this study was to conjugate Trastuzumab with fluorine-bearing PAMAM dendrimer to compare activities in three-dimensional (3D) cultured breast cancer cells with parent Trastuzumab. An in vitro study was performed to determine cellular responses to fluorinated Trastuzumab conjugates by Magnetic Resonance Imaging (MRI). Breast cancer cells were cultured in 3D geometry. Proton (1H) MRI and Fluorine-19 (19F) MRI were used for visualization of cellular locations within a Hollow Fiber Bioreactor (HFBR) device and to monitor the cellular response to treatment. The results of this study confirm that cell growth is significantly decreased following treatment with Trastuzumab conjugates. The use of fluorinated Trastuzumab conjugates decreases breast cancer cell growth in 3D cultures and allows for tracking of drug delivery to cancer cells via 19F.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2020, 77, 3; 495-503
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrolyzed Collagen from Salmon Skin Increases the Migration and Filopodia Formation of Skin Keratinocytes by Activation of FAK/Src Pathway
Autorzy:
Woonnoi, Wanwipha
Chotphruethipong, Lalita
Tanasawet, Supita
Benjakul, Soottawat
Sutthiwong, Nuthathai
Sukketsiri, Wanida
Powiązania:
https://bibliotekanauki.pl/articles/1417272.pdf
Data publikacji:
2021-09-03
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
cell culture
keratinocyte stem cells
marine collagen
re-epithelialization
skin barrier
wound healin
Opis:
Previous studies reported hydrolyzed collagen increase cell proliferation and migration involved in the wound repair process. Nevertheless, the knowledge related with wound repair mechanism of hydrolyzed collagen from salmon skin (HCSS) has not been fully elucidated. Therefore, this study aimed to elucidate the effects of HCSS on the migration of keratinocyte HaCaT cells. Additionally, its molecular mechanism through cell division control protein 42 (Cdc42), Ras-related C3 botulinum toxin substrate 1 (Rac1), and Ras homolog family member A (RhoA) via focal adhesion kinase (FAK)-steroid receptor coactivator (Src) regulation and keratinocyte stem cells (KSCs) markers were also evaluated. After 24 h of incubation, keratinocyte proliferation was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and double stranded DNA (dsDNA) assays, and by determining the total cellular protein content. Keratinocyte migration and filopodia formation were measured by wound healing assay and phalloidin‐rhodamine staining, respectively. The migratory related proteins were evaluated by western blot analysis. HCSS had a high content of hydrophobic amino acids and imino acids. HaCaT cell proliferation and migration were significantly increased in response to HCSS at the concentration of 100-1000 μg/mL. The formation of filopodia was subsequently increased in response to HCSS at concentrations of 100-1000 μg/mL. Moreover, HCSS upregulated Cdc42, Rac1, and RhoA protein expression and activated the phosphorylation of FAK and Src pathway. HCSS at the concentration of 100-1000 μg/mL could trigger stemness by increased KSC markers, including keratin 19 and β-catenin expression. This study has demonstrated that HCSS induces proliferation and migration of keratinocytes, subsequently promotes the second phase of wound healing process by FAK-Src activation and also increases the KSC properties.
Źródło:
Polish Journal of Food and Nutrition Sciences; 2021, 71, 3; 323-332
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Układ typu ciecz/ciecz jako alternatywna metoda hodowli przestrzennej komórek adherentnych
Liquid/liquid culture system as an alternative method of adherent cells 3-D culture
Autorzy:
Brzezińska, M.
Grabowska, I.
Dąbkowska, K.
Pilarek, M.
Powiązania:
https://bibliotekanauki.pl/articles/2071710.pdf
Data publikacji:
2012
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
układ hodowlany ciecz/ciecz
hodowla komórkowa
kule zarodkowe
mysie zarodkowe komórki macierzyste
liquid/liquid culture system
animal cell culture
cell spheres
Opis:
Porównano wzrost mysich zarodkowych komórek macierzystych w postaci kul zarodkowych w hodowli standardowej (stała powierzchnia pokryta żelatyną) oraz w układzie ciecz/ciecz (perfluorodekalina/pożywka). Wykazano, że hodowla kul zarodkowych w układzie dwóch niemieszających się faz ciekłych pozwala znacznie wydłużyć żywotność agregatów mysich komórek macierzystych oraz prawdopodobnie utrzymać je w stanie niezróżnicowanym.
The growth of mouse embryonic stem cell spheres cultured in the typical (on solid surface) and in liquid/liquid systems (perfluorodecalin/medium) has been compared. It has been showed that the liquid/liquid culture system enables one to extend the viability of cultured cells and probably maintains undifferentiated state of the mouse embryonic stem cell spheres.
Źródło:
Inżynieria i Aparatura Chemiczna; 2012, 4; 101-102
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tissue engineering of bone: the role of osteoblasts in osteogenesis and peri-implant bone healing
Autorzy:
Wróbel, E.
Witkowska-Zimny, M.
Powiązania:
https://bibliotekanauki.pl/articles/284980.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
bone tissue engineering
osteoblasts
human bone-derived cells
peri-implant bone healing
osteogenesis
cell culture
Opis:
Osteoblasts are cells of mesenchymal origin, which rebuild resorbed bone by synthesizing bone matrix proteins and by inducing bone matrix mineralization. Osteoblasts play a crucial role in creating and maintenance of healthy bone architecture, bone repair, and peri-implant bone healing (osseointegration). These bone-forming cells are also involved in regulation of osteoclasts function, and hence bone resorption in osteoclastogenesis process. We have presented our own studies on the subsequent stages of differentiation of Human Bone-Derived Cells (HBDCs) that could be a good candidate as an autogenous source for reconstruction and rebuilding of own patient's bone using tissue engineering methods. In this review we discussed the biology of osteoblasts, compared with the HBDCs cultures, under the influence of growth factors (FGF-2, TGF-ß, IGF, PDGF) and hormones (PTH, 1,25-dihydroxyvitamin D3, leptin). Our review is also focused on the participation of intercellular adhesion proteins (cadherins, claudins, connexin, 'OsteoMacs'), transcription factors (Cbfal, Msx-2, Osx, ATF4), and others molecules (RANKL, OPG, BMP2, lactofferin, PPARY) in modulating osteoblasts functions on the basis of current reports, throwing new light on the involvement of osteoblasts during osteogenesis and peri-implant bone healing.
Źródło:
Engineering of Biomaterials; 2013, 16, 119; 2-7
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biological and biochemical characteristics of Spodoptera exigua nuclear polyhedrosis virus [SeMNPV] [Baculoviridae] stored for a long time at different formulations
Autorzy:
Jakubowska, A.
Ziemnicka, J.
Powiązania:
https://bibliotekanauki.pl/articles/66562.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
insect population
Baculoviridae
commercial product
baculovirus
Spodoptera exigua
storage stability
cell culture
nuclear polyhedrosis virus
Źródło:
Journal of Plant Protection Research; 2003, 43, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of silymarin content in cell cultures of Silybum marianum by copper sulphate elicitor
Autorzy:
Elsharnouby, M.E.
Hassan, F.A.S.
Powiązania:
https://bibliotekanauki.pl/articles/11893796.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
milk thistle
Silybum marianum
herbal plant
medicinal plant
cell culture
silymarin
copper sulphate
Opis:
Silybum marianum L. (Milk thistle) extracts are the main source of silymarin that is a mixture of various flavonolignan (silybin (silibinin), silydianin and silychristin). Silymarin of milk thistle has a hepatoprotective activity for liver cirrhosis and chronic inflammatory. Silybum marianum regeneration from hypocotyl explants and evaluation of their callogenesis, growth and total flavolignan (silymarin) upon copper sulphate (as abiotic elicitor) elicitation was targeted. Copper sulphate (CuSO4) was applied in concentrations of 0, 3, 5, 7 and 9 µM to elicit the silymarin production in cultures. The elicitation periods used in this study were 2, 4, 7, 14 and 28 days. Half-strength MS medium recorded better results relative to full-strength MS one and seed incubation in the darkness at room temperature resulted in rapid germination and reached to the gar lid after 10 days. Callus fresh and dry weights as well as growth index were gradually increased with increasing the copper sulphate concentration till 5 µM while decreased thereafter at any elicitation period. With the increase of the elicitation period, the increase of the previous parameters was observed. Flavonolignan (silymarin) was positively correlated with CuSO4 levels since all levels of copper sulphate significantly enhanced its content in relative to the control. Additionally, more silymarin was accumulated after 4 or 7 days and the accumulation significantly decreased when the elicitation period reached 14 days more. The highest silymarin (flavolignan) content (11.79 and 11.67 mg g–1 DW) was obtained when 5 or 7 µM copper sulphate levels were combined with 4 days elicitation period, being about five-fold of the control.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 2; 105-114
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An integrated gas removing system for microfluidic application. Design and evaluation
Autorzy:
Hofman, I. M.
Ziółkowska, K.
Dybko, A.
Brzózka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/115931.pdf
Data publikacji:
2013
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
gas removing system
debubbler
debubbling system
lab-on-a-chip
microfluidics
long-term cell culture
cell spheroids
HT-29 cells
Opis:
Microfluidic systems are used in a wide range of applications, including medical diagnostics, cell engineering and bioanalytics. In this work we focused on “Lab-on-a-chip” microsystems for cell cultivation. A troublesome problem of gas bubbles entering microdevices causing signal interferences and cells damage was emphasized. A novel, integrated debubbler in the form of cylindrical traps covered with thin PDMS membrane was designed and manufactured. Demonstrated debubbler was successfully applied in a long-lasting culture of HT-29 cell aggregates.
Źródło:
Challenges of Modern Technology; 2013, 4, 3; 10-15
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photodynamic therapy procedures in the microfluidic system
Autorzy:
Jędrych, E.
Pawlicka, Z.
Chudy, M.
Dybko, A.
Brzózka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/115635.pdf
Data publikacji:
2010
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
photodynamic therapy (PDT)
microfl uidic culture system
PDMS
adherent cell culture
concentration gradient generator (CGG)
5-aminolevulinic acid (ALA)
Opis:
Evaluation of the effi ciency of photodynamic therapy (PDT) in a hybrid microfl uidic culture system was studied. The geometry of the utilized microsystem for PDT procedures consists microchambers for cell culture and microchannels, which create a concentration gradient generator (CGG). 5-aminolevulinic acid (ALA) as a precursor of the photosensitizer was used. The geometry of the microchip allowed to test diff erent concentrations of ALA in a single assay. Evaluation of the effi ciency of photodynamic therapy was determined 24 hours after PDT procedure (irradiation with light which induced accumulated in carcinoma cells). The performed microsystem contained two independent micropatterns, that enables examination simultaneously various cell lines (carcinoma and normal) or various photosensitizers.
Źródło:
Challenges of Modern Technology; 2010, 1, 1; 30-33
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimizing manufacturing conditions of polymer microspheres as cell carriers for modular tissue engineering
Autorzy:
Mielan, Bartosz
Pamuła, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/1844978.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
modular tissue engineering
microspheres
cell culture
oil-in-water emulsification
poly(L-lactide-co-glycolide) (PLGA)
Opis:
Microspheres (MS) made of biostable polymer, namely polystyrene, have been used as substrates for cell culture enabling rapid cell expansion in dynamic conditions. However, due to non-resorbability, polystyrene (PS) MS when repopulated with cells cannot be directly used in tissue engineering. Our concept was to produce MS from resorbable polymer – poly(L-lactide- -co-glycolide) (PLGA) as a support for adherent cells, e.g. osteoblasts. We hypothesize that such MS can be applied to the injured site to act as cell carriers or as modules for modular tissue engineering (MTE). In this article, we present the results of optimizing the PLGA MS manufacturing conditions via oil-in-water emulsification. Due to such a technique, MS with the required size, size distribution and properties suitable for cell culturing can be obtained. Three parameters of the oil-in-water emulsification were examined: the stirring speed of a water phase during MS manufacturing, the surfactant concentration, i.e. poly(vinyl alcohol) (PVA) in a water phase and concentration of PLGA in dichloromethane (DCM) as an oil phase. The results proved that the 7.5% PLGA concentration in DCM solution as an oil phase, the 0.5-2% concentration of PVA solution as a water phase and the stirring speed of water phase of 1000 rpm provided MS with the 160 μm mean diameter, which is suitable for cell culture. Moreover, the developed sieving and cleaning procedures were efficient to collect MS with the mean diameter of 280 μm, the more coherent size distribution and the ability to sink in the cell culture medium. The presence on the bottom of cell culture wells is crucial for MTE.
Źródło:
Engineering of Biomaterials; 2020, 23, 156; 2-9
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microfluidic devices — application in anticancer studies
Autorzy:
Jędrych, E.
Chudy, M.
Dybko, A.
Brzózka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/115929.pdf
Data publikacji:
2012
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
microfluidic system
PDMS
adherent cell culture
concentration gradient generator (CGG)
cytotoxicity tests
photodynamic therapy (PDT) procedures
Opis:
A rapidly growing pharmaceutical industry requires faster and more efficient ways to find and test new drugs. One of the new method for cell culture and examining the toxic effects of drugs is application of microfluidic systems. They provide new types of microenvironments and new methods for investigation of anticancer therapy. The use of microsystems is a solution that gives the opportunity to reduce not only cost and time, but also a number of tests on animals. In this paper we present designed and fabricated hybrid microfluidic systems which are applicable for cell culture, cell based cytotoxicity assays and photodynamic therapy procedures. Polydimethylsiloxane (PDMS) and sodium glass were used for fabrication of microdevices. The designed geometry of the microdevices includes cell culture microchambers and a concentration gradient generator (CGG). The CGG enables to obtain diff erent concentrations of tested drugs in a single step, which is a significant simplification of cytotoxicity assay procedure. In the designed microsystems three various cell lines (normal and carcinoma) were cultured and analyzed.
Źródło:
Challenges of Modern Technology; 2012, 3, 2; 3-5
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cryptic rearrangements of chromosome 12 in testicular germ cell tumors with or without the specific i[12p] marker
Autorzy:
Grygalewicz, B
Pienkowska-Grela, B.
Woroniecka, R.
Powiązania:
https://bibliotekanauki.pl/articles/2043149.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
aberration
in situ
isochromosome
cytogenetic analysis
microdissection
testicular germ cell tumour
karyotype
cell culture
nonseminoma
fluorescence
hybridization
seminoma
chromosome 12
DNA
Źródło:
Journal of Applied Genetics; 2000, 41, 2; 123-131
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cadmium-induced changes in antioxidant enzymes in suspension culture of soybean cells.
Autorzy:
Sobkowiak, Robert
Rymer, Katarzyna
Rucińska, Renata
Deckert, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1043349.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
ascorbate peroxidase
superoxide dismutase
peroxidase
soybean cell suspension culture
catalase
cadmium
Opis:
Cadmium (Cd), similarly to other heavy metals, inhibits plant growth. We have recently showed that Cd2+ either stimulates (1-4 μM) or inhibits (ł 6 μM) growth of soybean (Glycine max L.) cells in suspension culture (Sobkowiak & Deckert, 2003, Plant Physiol Biochem. 41: 767-72). Here, soybean cell suspension cultures were treated with various concentrations of Cd2+ (1-10 μM) and the following enzymes were analyzed by native electrophoresis: superoxide dismutase (SOD), catalase (CAT), peroxidase (POX) and ascorbate peroxidase (APOX). We found a significant correlation between the cadmium-induced changes of soybean cell culture growth and the isoenzyme pattern of the antioxidant enzymes. The results suggest that inhibition of growth and modification of antioxidant defense reactions appear in soybean cells when Cd2+ concentration in culture medium increases only slightly, from 4 to 6 μM.
Źródło:
Acta Biochimica Polonica; 2004, 51, 1; 219-222
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In situ-formed bacterial exopolysaccharide (EPS) as a potential carrier for anchorage-dependent cell cultures
Autorzy:
Komorowski, Piotr
Kołodziejczyk, Agnieszka
Makowski, Krzysztof
Kotarba, Sylwia
Walkowiak, Bogdan
Powiązania:
https://bibliotekanauki.pl/articles/1844871.pdf
Data publikacji:
2021
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
bacterial exopolysaccharides
dextran- -based “microcarriers”
scanning electron microscopy
atomic force microscopy
roughness parameters
three-dimensional cell culture
Opis:
The study involved the use of a bacterial strain isolated from environmental samples which produce the biopolymer in the form of pellets in the submerged culture. This material (bacterial exopolysaccharide) is produced by bacteria of the Komogateibacter xylinus which are prevalent in the environment. The aim of this study was to characterize bacterial exopolysaccharides and commercial dextran-based “microcarriers” in terms of their roughness and cell culture effects, including the morphology and viability of the human hybridoma vascular endothelial cell line EA.hy926. The pellets were characterized using scanning electron microscopy (SEM) and atomic for¬ce microscopy (AFM). The resulting structures were used for cell culture of adherent cells (anchorage¬-dependent cells). At the same time, the cultures with commercial, dextran-based “microcarriers” were carried out for comparative purposes. After com¬pletion of the cell culture (24 hours of culture), the cellulose and commercial “carriers” were analyzed using SEM and AFM. Finally, the obtained cell dens¬ities (fluorescence labelling) and their morphological characteristics (SEM) were compared. The obtained results strongly support the applicability of bacterial exopolysaccharide (EPS) in tissue engineering to build innovative 3D scaffolds for cell culture, the more so that it is technologically possible to produce EPS as spatially complex structure
Źródło:
Engineering of Biomaterials; 2021, 24, 159; 18-23
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of in vitro culture conditions for obtaining flax (Linum usitatissimum L. cv. Modran) cell suspension culture
Autorzy:
Seta-Koselska, A.
Skorzynska-Polit, E.
Powiązania:
https://bibliotekanauki.pl/articles/81015.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Linum usitatissimum
flax
in vitro culture
alpha-linolenic acid
phytochemical
lignan
callus culture
cell suspension culture
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2017, 98, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Właściwości i kliniczne możliwości zastosowania ludzkich komórek nabłonka owodni (HAEC)
Properties and clinical application of human amniotic epithelial cells (HAEC)
Autorzy:
Gawryluk, Arkadiusz
Noszczyk, Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/1030397.pdf
Data publikacji:
2015
Wydawca:
Medical Communications
Tematy:
amniotic epithelial cells
amniotic membrane
biological dressing
cell culture
tissue engineering
hodowle komórkowe
inżynieria tkankowa
komórki nabłonka owodni
opatrunki biologiczne
owodnia
Opis:
In the contemporary medicine, undifferentiated progenitor cells of various origin and various degree of plasticity have become highly promising. Their most abundant, renewable and uncontroversial sources are placental tissues and umbilical blood. The only epithelial cells in this group come from the amnion which is used as a whole as an allogenic biological dressing. They have a range of unusual properties, such as the relative lack of histocompatibility antigens, plasticity (enabling their differentiation into a number of epithelial and mesenchymal cells) and the lack of neoplastic capacity. Amniotic epithelial cells are the only epithelial cells of the placenta. It is believed that they retain their progenitor (pluripotent) properties even in term pregnancies. This probably results from the fact that they omit the differentiation that accompanies gastrulation. Such features are typical of all placental cells which differ from amniotic epithelial cells only in their non-epithelial origin. In culture conditions, amniotic epithelial cells are characterized by a considerable plasticity: they can be stimulated to differentiate into adipocytes, chondrocytes, osteocytes, myocytes, cardiomyocytes, neurocytes, pancreatic cells and hepatocytes. To date, however, the attempts to direct their development towards the epidermis have not been successful. Obtaining multilayer epidermis in amniotic epithelial culture would be of considerable importance for tissue engineering of biological dressings. Amniotic membranes have been used for this purpose for many years, but because of their complex structure and metabolic requirements, they do not heal but dry up when applied to the wound. Some reports, however, indicate that the epithelium isolated from the amnion could be able to heal thus being suitable for allogenic grafts.
Współczesna medycyna coraz większe nadzieje pokłada w niezróżnicowanych komórkach progenitorowych różnego pochodzenia i o różnym stopniu plastyczności. Ich najbardziej zasobnym, odnawialnym i niekontrowersyjnym źródłem wydają się tkanki łożyska i krew pępowinowa. Jedyne w tej grupie komórki nabłonkowe pochodzą z owodni, wykorzystywanej często w całości jako allogeniczny opatrunek biologiczny. Mają one szereg niezwykłych cech, takich jak względny brak ekspresji antygenów zgodności tkankowej, plastyczność (umożliwiająca różnicowanie w cały szereg komórek nabłonkowych i mezenchymalnych) oraz brak zdolności do nowotworzenia. Komórki nabłonka owodni są jedynymi nabłonkowymi komórkami łożyska. Uważa się, że nawet w donoszonej ciąży zachowują właściwości progenitorowe (pluripotencjalne). Wynika to prawdopodobnie z faktu, iż pomijają różnicowanie towarzyszące gastrulacji. Cechy te przejawiają zresztą wszystkie komórki łożyska, różniące się od komórek nabłonka owodni jedynie nienabłonkowym pochodzeniem. W hodowli komórki nabłonka owodni charakteryzują się dużą plastycznością: ulegają stymulacji do różnicowania w kierunku adypocytów, chondrocytów, osteocytów, miocytów, kardiomiocytów, neurocytów, komórek trzustki i hepatocytów. Dotychczas nie udało się jednak skierować ich rozwoju w kierunku naskórka. Uzyskanie nabłonka wielowarstwowego w hodowli komórek nabłonka owodni miałoby ogromne znaczenie dla inżynierii tkankowej opatrunków biologicznych. Błony owodniowe wykorzystywane są w tym celu od wielu lat, jednak wskutek złożonej struktury i wymagań metabolicznych nie ulegają wgajaniu – wysychają po położeniu na powierzchni rany. Niektóre badania wskazują natomiast, że nabłonek izolowany z owodni mógłby się wgajać, nadawałby się zatem do allogenicznych przeszczepów.
Źródło:
Current Gynecologic Oncology; 2015, 13, 2; 123-135
2451-0750
Pojawia się w:
Current Gynecologic Oncology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of in vitro culture conditions influencing the initiation of raspberry (Rubus idaeus L. cv. Nawojka) cell suspension culture
Autorzy:
Dziadczyk, Ewa
Domaciuk, Marcin
Dziadczyk, Piotr
Pawelec, Iwona
Szczuka, Ewa
Bednara, Józef
Powiązania:
https://bibliotekanauki.pl/articles/763806.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
cell suspension culture
callus culture
raspberry
Rubus idaeus
plant growth regulators
kultura zawiesiny komórkowej
kultura kalusa
regulatory wzrostu roślin
Opis:
The purpose of our investigation was to determine appropriate conditions for induction of raspberry (Rubus idaeus cv. Nawojka) cell suspension culture. The established callus culture obtained from leaf explants was used as an inoculum for cell culture initiation. Five combinations of plant growth regulators: 1) 4.0 mg l-1 IAA and 1.0 mg l-1 BAP; 2) 0.25 mg l-1 2,4-D; 3) 0.5 mg l-1 2,4-D; 4) 2.0 mg l-1 NAA and 2.0 mg l-1 BAP; 5) 4.0 mg l-1 NAA and 2.0 mg l-1 BAP, added into modified Murashige and Skoog (1962) medium, were tested in order to get the callus culture suitable for initiation of a cell suspension. The best callus (vigorously growing, healthy and friable) was obtained on the medium supplemented with 4.0 mg l-1 IAA and 1.0 mg l-1 BAP. To find the appropriate culture conditions for dispersing callus tissue in liquid medium into single cells and small aggregates, four combinations of plant hormones (auxins and cytokinins) were tested. The best culture medium for induction of raspberry cv. Nawojka cell suspension appeared to be the one supplemented with 1.0 mg l-1 2,4-D. Also the medium with 8.0 mg l-1 IAA and 1.0 mg l-1 BAP was similarly efficient.
Celem prezentowanych badań była optymalizacja warunków kultury in vitro umożliwiających uzyskanie zawiesiny komórkowej maliny (Rubus idaeus L.). Jako inokulum do zainicjowania kultury zawiesinowej zastosowano ustabilizowaną kulturę kalusa uzyskaną z eksplantatów liściowych na zmodyfikowanej pożywce wg Murashige i Skooga (1962). W pierwszym etapie badań testowano 5 kombinacji regulatorów wzrostu (auksyn i cytokinin) dodawanych do pożywki stymulującej powstawanie tkanki kalusowej, w celu uzyskania kultury kalusa odpowiedniej do indukcji zawiesiny komórkowej. Najlepszą tkankę kalusową (szybko mnożącą się, o luźnej strukturze) uzyskano w kombinacji uwzględniającej uzupełnienie pożywki do kultury in vitro auksyną IAA w stężeniu 4,0 mg l-1 oraz cytokininą BAP w stężeniu 1,0 mg l-1 . W drugim etapie badań testowano warunki kultury in vitro umożliwiające odpowiednią dyspersję tkanki kalusowej w płynnej pożywce, skutkującą uzyskaniem populacji pojedynczych komórek oraz małych agregatów komórkowych w hodowli. W tym celu testowano 4 warianty składu pożywki, różniące się rodzajem i stężeniem zastosowanych hormonów roślinnych należących do klasy auksyn i cytokinin. Najlepszy wynik uzyskano w płynnej pożywce uzupełnionej syntetyczną auksyną 2,4-D w stężeniu 1,0 mg l-1, także pożywka zawierająca auksynę IAA w stężeniu 8,0 mg l-1 oraz cytokininę BAP w stężeniu 1,0 mg l-1 dała dobry wynik.
Źródło:
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia; 2013, 68, 2
2083-3563
0066-2232
Pojawia się w:
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Properties of polyurethane fibrous materials produced by solution blow spinning
Autorzy:
Łopianiak, Iwona
Wojasiński, Michał
Butruk-Raszeja, Beata
Powiązania:
https://bibliotekanauki.pl/articles/2034056.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nano- and microfibres
3D cell culture
solution blow spinning
polyurethanes
scaffolds
nano- i mikrowłókna
hodowla komórek 3D
wirowanie z rozdmuchiwaniem roztworu
poliuretany
rusztowania
Opis:
The study aimed to produce nano- and microfibrous materials from polyurethane (ChronoFlex®C75A/ C75D in 1,1,1,3,3,3–hexafluoro–2–propanol) by solution blow spinning. Experiments were carried out in order to determine the impact of solution blow spinning parameters on fibre diameter and quality of produced materials. The following properties of produced fibre scaffolds were investigated: fibre size, porosity and pore size, wettability, and mechanical properties. The results confirmed that produced nano- and microfibrous materials could be potentially used as scaffolds in three-dimensional cell and tissue cultures.
Źródło:
Chemical and Process Engineering; 2020, 41, 4; 267-276
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enhanced Chondrocyte Proliferation in a Prototyped Culture System with Wave-Induced Agitation
Autorzy:
Pilarek, M.
Godlewska, K.
Kuźmińska, A.
Wojasiński, M.
Dąbkowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/184988.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wave-induced agitation
small-scale animal cell culture
CP5 chondrocytes
fibrousbased
scaffold
single-use bioreactor
wzbudzanie falowe
hodowla komórek zwierzęcych
Chondrocyty CP5
szafot
bioreaktor
Opis:
One of the actual challenges in tissue engineering applications is to efficiently produce as high of number of cells as it is only possible, in the shortest time. In static cultures, the production of animal cell biomass in integrated forms (i.e. aggregates, inoculated scaffolds) is limited due to inefficient diffusion of culture medium components observed in such non-mixed culture systems, especially in the case of cell-inoculated fiber-based dense 3D scaffolds, inside which the intensification of mass transfer is particularly important. The applicability of a prototyped, small-scale, continuously wave-induced agitated system for intensification of anchorage-dependent CP5 chondrocytes proliferation outside and inside three-dimensional poly(lactic acid) (PLA) scaffolds has been discussed. Fibrous PLA-based constructs have been inoculated with CP5 cells and then maintained in two independent incubation systems: (i) non-agitated conditions and (ii) culture with wave-induced agitation. Significantly higher values of the volumetric glucose consumption rate have been noted for the system with the wave-induced agitation. The advantage of the presented wave-induced agitation culture system has been confirmed by lower activity of lactate dehydrogenase (LDH) released from the cells in the samples of culture medium harvested from the agitated cultures, in contrast to rather high values of LDH activity measured for static conditions. Results of the proceeded experiments and their analysis clearly exhibited the feasibility of the culture system supported with continuously wave-induced agitation for robust proliferation of the CP5 chondrocytes on PLA-based structures. Aside from the practicability of the prototyped system, we believe that it could also be applied as a standard method offering advantages for all types of the daily routine laboratory-scale animal cell cultures utilizing various fiber-based biomaterials, with the use of only regular laboratory devices.
Źródło:
Chemical and Process Engineering; 2017, 38, 2; 321-330
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Endothelial cells on pet vascular prostheses impregnated with polyester-based copolymers and coated with cell-adhesive protein assemblies
Autorzy:
Chlupac, J.
Filova, E.
Riedel, T.
Brynda, E.
Pamuła, E.
Lisa, V.
Bacakova, L.
Powiązania:
https://bibliotekanauki.pl/articles/284406.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
vascular prostheses
polyethylene terephtalate
poly(glycolide-L-lactide)
poly(glycolide-L-lactide-(ε)caprolactone)
extracellular matrix
surface modification
collagen
laminin
fibronectin
fibrin
endothelial cells
static cell culture
Opis:
Arterial bypass surgery with synthetic vascular prostheses achieves poor patency rates compared to autogenous natural materials, and this is a challenge for tissue engineering research concerning small caliber vascular grafts. Modifications of the prosthetic surface followed by endothelial cell seeding may reduce thrombogenicity and intimal hyperplasia. Planar polyethylene terephthalate (PET) vascular prosthetic samples were impregnated with the copolymer poly(glycolide-L-lactide) (PGL) or with the terpolymer poly(glycolide-L-lactide-(e)caprolactone) (PGLCap) in order to lower the permeability of the knitted fabrics and ensure a less adhesive background. Subsequent modification with adhesive protein assemblies composed of collagen type I (Co) in conjunction with laminin (LM), fibronectin (FN) or fibrin (Fb) gel was performed to enhance cell adhesion. Bovine pulmonary artery endothelial cells (EC) of the CPAE line were seeded on to the coatings and subjected to static tissue culture conditions for 7 days. Impregnation of the PET prostheses decreased the initial adhesion and proliferation of the EC. After coating with the protein assemblies, the impregnated PET provided better substrates for cell culture than the protein-coated PET, on which the EC population started decreasing after 4 days of culture. The cells proliferated better on the CoFN, CoFb and CoFbFN coatings than on the Co and CoLM coatings. Impregnation type and adhesive matrix protein deposition may play an important role in successful endothelialization, healing and clinical performance of vascular grafts.
Źródło:
Engineering of Biomaterials; 2008, 11, no. 81-84; 108-111
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Liquid Perfluorochemicals as Flexible and Efficient Gas Carriers Applied in Bioprocess Engineering: An Updated Overview and Future Prospects
Autorzy:
Pilarek, M.
Powiązania:
https://bibliotekanauki.pl/articles/185200.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ciecz perfluorochemiczna
fluorowęgiel
gaz ciekły
rozpuszczalność
hybrydowy system hodowli
liquid perfluorochemical
fluorocarbon
liquid gas carrier
solubility
cell/tissue culture
hybrid culture system
Opis:
Fully synthetic, biochemically inert and water-immiscible liquid perfluorochemicals (PFCs) are recognised as flexible liquid carriers/scavengers of gaseous compounds (respiratory gases mainly, i.e. O2 and CO2) and increasingly applied in bioprocess engineering. A range of unmatched physicochemical properties of liquid PFCs, i.e. outstanding chemo- and thermostability, extremely low surface tension, simultaneous hydro- and lipophobicity, which result from carbon chain substitution with fluorine atoms (the most electronegative chemical element) and the presence of intramolecular C–F bonds (the strongest single bond known in organic chemistry) have been described in detail. Exceptional propensity to solubility of respiratory gases in liquid perfluorinated compounds has been widely discussed. Advantages and disadvantages of bioprocess applications of liquid PFCs in the form of a pure PFC as well as in an emulsified form have been pointed out. A liquid PFC-mediated mass transfer intensification in various types of microbial, plant cell and animal cell culture systems: from miniaturised microlitre-scale cultures, via biomaterial-based scaffolds containing culture systems, to litre-scale bioreactors, has been reviewed and elaborated on bearing in mind the benefits of bioprocesses.
Źródło:
Chemical and Process Engineering; 2014, 35, 4; 463-487
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling of a hybrid culture system with a stationary layer of liquid perfluorochemical applied as oxygen carrier
Autorzy:
Pilarek, M.
Dąbkowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/185054.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
liquid perfluorochemical (fluorocarbon)
liquid gas carrier
mathematical modelling
cell/tissue culture
hybrid culture system
ciecz perfluorochemiczna (fluorowęglowa)
gaz ciekły
modelowanie matematyczne
hybrydowy system hodowli
Opis:
A mathematical model of a hybrid culture system supported with a stationary layer of liquid perfluorochemical (PFC) as a source of O2 for cells which grow in the aqueous phase of culture medium has been developed and discussed. The two-substrate Monod kinetics without inhibition effects, i.e. the Tsao-Hanson equation, has been assumed to characterise the biomass growth. The Damköhler number which relates the growth rate to the mass transfer effects has been used to appraise the regime (i.e. diffusion-limited or kinetics) of the whole process. The proposed model predicted accurately previously published data on the submerged batch cultures of Nicotiana tabacum BY-2 heterotrophic cells performed in a culture system supported with a stationary layer of hydrophobic perfluorodecalin as a liquid O2 carrier. Estimated values of the parameters of the model showed that the process proceeded in the kinetics regime and the growth kinetics, not the effects of the mass transfer between aqueous phase and liquid PFC, had essential influence on the growth of biomass.
Źródło:
Chemical and Process Engineering; 2016, 37, 1; 149-158
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of Arabidopsis thaliana (col-0) plants and cell suspension cultures responses to Alternaria brassicicola infection
Autorzy:
Rousseau, K.
Macioszek, V.K.
Kononowicz, A.K.
Powiązania:
https://bibliotekanauki.pl/articles/81100.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
Alternaria brassicicola
necrotrophic pathogen
fungal pathogen
cruciferous plant
black spot disease
Arabidopsis thaliana
cell suspension
cell suspension culture
fungal infection
reactive oxygen species
hydrogen peroxide
superoxide anion
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In vitro cultures of animal and human cells
Autorzy:
Slomski, R.
Nowak, A.
Hryhorowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/951215.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
in vitro culture
tissue culture
animal cell
human cell
homeostasis
fluorescence in situ hybridization
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth of animal cells on flexible interface of liquid fluorocarbon
Autorzy:
Pilarek, M.
Grabowska, I.
Powiązania:
https://bibliotekanauki.pl/articles/283970.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
perfluorochemical (perfluorocarbon)
liquid/liquid culture system
flexible interfacial area
animal cell aggregates
Opis:
The aim of this work was to study BHK-21 fibroblasts cultured on the interfacial area of two immiscible liquids: perfluorodecalin (hydrophobic; PFD) and cell culture medium (aqueous; DMEM) what allows creating 3-D multicellular structures. We showed that the robust growth of 3-D aggregated animal cells could be achieved on flexible PFD/DMEM interfacial area. We also indicated that 3-D aggregates of BHK-21 cells could be successfully subcultured on solid hydrophobic surface and cells could migrate from those multicellular structures, spread on solid surface and further grow in typical monolayered form. Results of our experiments showed that the PFD/medium system is simple and ready-to-use method without need of any inserts traditionally used for 3-D cultures of animal cells. Formed multicellular 3-D aggregates could be directly used in the same culture system for inoculation of biomaterial elements or scaffolds.
Źródło:
Engineering of Biomaterials; 2012, 15, 114; 12-14
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification and quantitative determination of pinoresinol in Taxus x media Rehder needles, cell suspension and shoot cultures
Autorzy:
Mistrzak, P.
Celejewska-Marciniak, H.
Szypula, W.J.
Olszowska, O.
Kiss, A.K.
Powiązania:
https://bibliotekanauki.pl/articles/56453.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
identification
quantitative determination
pinoresinol
Taxus x media
needle
cell suspension
shoot culture
Opis:
The aim of our study was to investigate the presence and quantitative contents of lignans in the tissues of Taxus ×media. The presence of the lignans: pinoresinol, matairesinol and secoisolariciresinol was assessed in needles, shoots cultures and suspension culture. Pinoresinol was the only lignan found in the tissue of T. ×media. The total pinoresinol content in the needles and in the shoots was 1.24 mg/g dry weight (dw) and 0.69 mg/g dw, respectively. Most of the pinoresinol identified was appeared glycosidically bound. In needles, the amount of glycosidically bound pinoresinol (0.81 mg/g dw) was about twice as high as that of free pinoresinol (0.43 mg/g dw). The content of free and glycosidically bound pinoresinol showed the level of 0.18 mg/g dw and 0.51 mg/g dw, respectively in the in vitro shoot cultures. In the cell culture, no pinoresinol was found.
Źródło:
Acta Societatis Botanicorum Poloniae; 2015, 84, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of selenium accumulation in Rhodotorula rubra cells by treatment of culturing medium with pulse electric field
Autorzy:
Pankiewicz, U.
Jamroz, J.
Schodzinski, A.
Powiązania:
https://bibliotekanauki.pl/articles/24423.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
optimization
cell
culture medium
treatment
Rhodotorula rubra
pulse electrical field
selenium accumulation
Źródło:
International Agrophysics; 2006, 20, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kultury zawiesinowe komórek jako model do badania tolerancji roślin na metale ciężkie
Cell suspension cultures as a model in studies of plant tolerance to heavy metals
Autorzy:
Sychta, Klaudia
Słomka, Aneta
Kuta, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/1033867.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Przyrodników im. Kopernika
Tematy:
cell viability
heavy metals
metallophytes
programmed cell death
suspension culture
Kultura zawiesinowa
metale ciężkie
metalofity
żywotność komórek
programowana śmierć komórki
Opis:
Zanieczyszczenia gleby metalami ciężkimi mają toksyczne działanie na rośliny, zwierzęta oraz człowieka. Metalofity, rośliny odporne na metale ciężkie, kolonizujące tereny metalonośne, są wykorzystywane do fitoremediacji, czyli oczyszczania gleb z metali ciężkich.
Wykorzystanie roślinnych kultur komórkowych do badań nad toksycznością metali i tolerancją komórek na ich działanie jest stosunkowo nową techniką. W pracy zostały przedstawione możliwości wykorzystania roślinnych kultur zawiesinowych w badaniach nad wpływem metali ciężkich na metabolizm komórek oraz metody oszacowania ich toksycznego wpływu. Zaprezentowane zostały techniki otrzymywania kultur zawiesinowych, oceny żywotności komórek, akumulacji metali ciężkich w komórkach. W ocenie toksyczności metali stosuje się także badania nad programowaną śmiercią komórki (PCD), co pozwala oszacować reakcję komórek na ich wysokie stężenia. Zostały przedyskutowane mechanizmy tolerancji komórek na metale ciężkie. Kultury zawiesinowe są dobrym modelem do badań tolerancji na metale, ponieważ pozwalają zbadać ich wpływ na pojedyncze komórki w jednolitych, stałych warunkach.

Soil pollutants exert toxic effects on plants, animals and humans. Metallophytes, plants tolerant to heavy metals colonizing polluted areas, are being used to phytoremediation - cleaning up soil contaminated with heavy metals.
The use of plant cells in vitro cultures to study heavy metal toxicity and tolerance is a relatively new approach in research of metal toxicity. In this paper the usefulness of plant suspension cultures to study the impact of heavy metals on cells is presented alongside with the methods of obtaining suspension cultures, evaluation of cell viability, metal accumulation and detection of programmed cell death (PCD). The mechanisms by which cells of plant species tolerant to heavy metals develop resistance to metal toxicity are discussed. Cell suspension cultures appear to be a good model to study tolerance to heavy metals because they allow to estimate metal impact to a single cell in stable uniform conditions.
Źródło:
Kosmos; 2018, 67, 2; 335-346
0023-4249
Pojawia się w:
Kosmos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of growth parameters of prune callus cultures destined to initiate cell suspensions
Autorzy:
Hanus-Fajerska, E
Powiązania:
https://bibliotekanauki.pl/articles/57881.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
improvement
growth parameter
prune
callus culture
cell suspension
Prunus domestica
growth regulator
proliferation
Opis:
Callus was inducted on wounded leaf explants from shoot tips of a particular Prunus domestica 'Węgierka Zwykła' clone cultivated in vitro. The improvement of Sweet Common Prune stock callus tissue parameters has been approached by experiments on culture protocols. Either for the induction or maintenance of tissue modified Murashige and Skoog medium, supplemented with different auxins and cytokinins at varying concentrations, was used. The goal was to obtain the highiest possible proliferative capacity of friable tissue without any signs of cell redifferentiation for about 10 weeks. The choice of auxin was an important factor regulating the rate and kind of tissue growth, and for the examined prune clone auxin alone brought a relatively small proportion of cells into division, so advantageous was to combine it with oxygenated cytokinin. Friable tissue was obtained on media supplemented with dicamba or with picloram, but not with 2.4-D neither alone nor combinated with IBA.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 1; 5-9
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of stress conditions on acclimation of magnolia Magnolia x soulangiana Soul.-Bod.
Wpływ warunków stresu na aklimatyzację magnolii Magnolia x soulangiana Soul.-Bod.
Autorzy:
Kamenicka, A.
Lanakova, M.
Cerna, K.
Powiązania:
https://bibliotekanauki.pl/articles/808264.pdf
Data publikacji:
2002
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
stress condition
acclimation
magnolia
Magnolia x soulangiana
tissue culture
leaf cell
donor plant
Opis:
Under a scanning microscope, leaves from tissue cultures (after 8 weeks in vitro culturing), from 1 year old regenerants and from the 100 years old donor tree were studied. More abnormalities were observed in the tissue culture compared to regenerant and donor. During tissue culture transfer rapid, leaf dehydration occurs due to defective regulation mechanisms making stomata of tissue culture stay open. Epidermis as well as stomata cells were observed already on the leaves in in vitro conditions, but they become physiologically functioning only after transfer into conditions of natural environment.
Przy zastosowaniu mikroskopu scaningowego porównywano cechy budowy komórek liści pochodzących z 100 letniej rośliny matecznej, 8 tygodniowych kultur tkankowych oraz 1 rocznych regeneratów. W regenerantach z kultur tkankowych obserwowano więcej nienormalności w budowie komórek epidermy, komórek szparkowych i komórek przyszparkowych w porównaniu z komórkami pochodzącymi z rośliny matecznej. Podczas przenoszenia tkanek w kulturze in vitro obserwowano odwodnienie tkanek liści a mimo to komórki szparkowe pozostawały otwarte. Komórki epidermy oraz komórki szparkowe były obecne na liściach hodowli in vitro jednak stawały się one fizjologicznie funkcjonalne tylko wtedy gdy zostały przeniesione do warunków naturalnych.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2002, 481, 1
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recent advances and novelties in the thin cell layer-based plant biotechnology – a mini-review
Autorzy:
Da Silva, J.A.T.
Dobranszki, J.
Powiązania:
https://bibliotekanauki.pl/articles/80834.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thin cell layer
fruit
vegetable
in vitro culture
micropropagation
organogenesis
somatic embryogenesis
plant biotechnology
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2019, 100, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Professor E. Pojnar’s pioneer studies on isolated protoplasts, their continuation and development. In memory of Professor Edward Pojnar (1919-2011)
Autorzy:
Pindel, A.
Wiszniewska, A.
Piwowarczyk, B.
Powiązania:
https://bibliotekanauki.pl/articles/81216.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
plant protoplast
isolation
cell wall
enzymatic method
plant regeneration
protoplast culture
memory
Pojnar Edward
biography
scientific activity
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2012, 93, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of ascorbic acid concentration on structural characteristics of apical meristems on in vitro Aloe barbadensis Mill.
Wpływ stężenia kwasu askorbinowego na strukturalne cechy merystemu wierzchołkowego w kulturze in vitro Aloe barbadensis Mill.
Autorzy:
Kaviani, B.
Powiązania:
https://bibliotekanauki.pl/articles/11542901.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
ascorbic acid concentration
structural characteristics
apical meristem
in vitro culture
Aloe barbadensis
aloe
cell division
differentiation
histology
shoot
root
Opis:
Ascorbic acid is one of the major metabolite in higher plants cells which is known as effective factor when the cells enter to “S” phase from “G1” phase of cytokinesis. This metabolite has antioxidant activity and increases plant tolerance against stressors such as salinity, pathogens, ozone, UV rays, etc. The current study used the common cellular and histological methods to evaluate the effect of 0.05 to 2.5 mM ascorbic acid on vegetative meristems of Aloe barbadensis plants obtained from stem explants propagated in vitro culture conditions. Results showed that low concentrations of ascorbic acid (0.5 to 1 mM) increase mitotic index in apical meristem and root quiescent center (QC). Moreover, treatment with ascorbic acid increases cellular dimensions in cell elongation region of root and mitotic divisions in this region. In some measurements, it was clear that in addition to increase root length in plants treated with ascorbic acid, distance from root hairs zone to root cap increases compared to the control, which is a logical conclusion from increasing cell elongation and divisions in cell elongation zone. Also, ascorbic acid increased production of secondary roots through stimulating cells of pericycle and increasing divisions in this region. Apical meristem of stem treated with ascorbic acid had more convexity homogenous with more chromophilic level. Increasing stem length and number of leaves in plants treated with ascorbic acid could be related to the high cells’ mitotic activity in stem apical meristem. Moreover, ascorbic acid could stimulate cell division, increasing area of meristem zone, and effective on severity of differentiation
Kwas askorbinowy jest jednym z głównych metabolitów w wyższych komórkach roślin i istotnym współczynnikiem efektywności, gdy komórki wchodzą w fazę „S” z fazy „G1” cytokinezy. Metabolit ten ma właściwości utleniające oraz zwiększa tolerancję roślin na stresory, takie jak zasolenie, patogeny, ozon, promienie UV itd. W niniejszym badaniu wykorzystano powszechnie znane metody komórkowe i histologiczne. Oceniano wpływ 0,05 do 2,5 mM kwasu askorbinowego na wegetatywne merystemy Aloe barbadensis uzyskane z eksplantów łodyg rozmnożonych w warunkach hodowli in vitro. Uzyskane wyniki pokazały, że niskie stężenia kwasu askorbinowego (0,5 do 1 mM) zwiększają wskaźnik mitotyczny w merystemie wierzchołkowym oraz centrum spoczynkowym korzeni (QC). Poza tym zabieg kwasem askorbinowym zwiększa wymiary komórkowe w rejonie elongacji komórek korzenia oraz podziały mitotyczne w tym rejonie. W niektórych pomiarach jasne było, iż poza zwiększeniem długości korzenia roślin traktowanych kwasem askorbinowym, zwiększa się odległość od strefy włośników do czapeczki korzeniowej w porównaniu z kontrolą, co jest logiczną konsekwencją zwiększenia elongacji komórek i podziałów w strefie elongacji komórek. Kwas askorbinowy zwiększał także wytwarzanie wtórnych korzeni poprzez stymulowanie komórek perycyklu oraz zwiększanie podziałów w tym rejonie. Merystem apikalny traktowany kwasem askorbinowym miał większą wypłukać homogeniczną z poziomem chromofilowym. Zwiększenie długości łodygi oraz liczby liści u roślin traktowanych kwasem askorbinowym mogło byü związane z wysoką aktywnością mitotyczną komórek w merystemie apikalnym łodygi. Ponadto kwas askorbinowy, wpływając na intensywność zróżnicowania, mógł stymulować podział komórek poprzez zwiększenie obszaru stref merystemu.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2014, 13, 3; 49-56
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rice improvement, involving altered flower structure more suitable to cross-pollination, using in vitro culture in combination with mutagenesis
Autorzy:
Min, S K
Powiązania:
https://bibliotekanauki.pl/articles/2048292.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
japonica rice
radiation
China
mutagenesis
mutant
anther culture
in vitro
cross-pollination
hybridization
indica rice
somatic cell
Oryza sativa
rice
Opis:
Anther and somatic tissue culture in combination with mutagenesis were carried out to evaluate the efficiency of different mutagenic treatments of various in vitro culture materials, and to obtain some promising variants for rice improvement. Results indicated that in japonica rice radiation treatment of dry seeds and young panicles influenced the percentage of green plantlets regeneration from anther culture. Both treatments increased significantly the percentage of regenerated green plantlets in comparison with the control. Irradiation with 30 Gy of rice callus increased also the percentage of regenerated green plantlets. For indica rice, the combination of the suitable dose of gamma rays irradiation on seeds and an improved medium, increased the percentage of callus induction. This approach made it possible to use anther culture in indica rice breeding. Somatic tissue cultures combined with radiation-induced mutagenesis led to the development of a number of promising mutants including some new cytoplasm-nucleus interacting male-sterile lines with almost 100% stigma exsertion. Their development would be of practical significance for increasing the genetic diversity for production of hybrid rice.
Źródło:
Journal of Applied Genetics; 1998, 39, 2; 151-162
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of isolation stress on the (re)organization of cell walls in protoplasts of in vitro recalcitrant plants
Autorzy:
Wiszniewska, A.
Piwowarczyk, B.
Pindel, A.
Powiązania:
https://bibliotekanauki.pl/articles/80981.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
protoplast culture
cell wall
regeneration
cellulose
arabinogalactan protein
isolation stress
reorganization
recalcitrant plant
plant species
yellow lupin
grass pea
hyacinth
asparagus
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2012, 93, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Apoplastic markers of cell differentiation status during somatic embryogenesis in Arabidopsis thaliana
Autorzy:
Potocka, I.
Sala, K.
Kurczynska, E.U.
Powiązania:
https://bibliotekanauki.pl/articles/81256.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
somatic embryogenesis
Arabidopsis thaliana
plant tissue
embryogenic culture
immature zygotic embryo
cotyledonary stage
meristematic cell
arabinogalactan protein
lipid transfer protein
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ estru etylowego kwasu p-hydroksybenzoesowego na zdolność wbudowywania 32p do kwasów nukleinowych komórki zwierzęcej - w hodowli tkankowej
Vlijanie atilovogo afira p-gidrokibenaoinoi kisloty na cposobnost prisoedinenija 32 P k nukleinovym kislotam v aksplantacii zhivotnyh tkanei
The influence of ethyl p-hydroxybenzoate on the incorporation of 32p into nucleic acids of animal cells in tissue culture
Autorzy:
Fitak, B.
Lipinski, S.
Powiązania:
https://bibliotekanauki.pl/articles/873670.pdf
Data publikacji:
1970
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
estry etylowe
kwas p-hydroksybenzoesowy
kwasy nukleinowe
komorki zwierzece
hodowla tkankowa
zawartosc DNA
zawartosc RNA
ethyl ester
p-hydroxybenzoic acid
nucleic acid
animal cell
tissue culture
DNA content
RNA content
Źródło:
Roczniki Państwowego Zakładu Higieny; 1970, 21, 2
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
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