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Wyświetlanie 1-15 z 27
Tytuł:
Transcriptional pattern of TGF-beta1 inhibitory effect on mouse C2C12 myoblasts differentiation
Autorzy:
Wicik, Z.
Sadkowski, T.
Jank, M.
Motyl, T.
Powiązania:
https://bibliotekanauki.pl/articles/30377.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
transforming growth factor-beta 1
myogenesis
microarray
DNA microarray
differentiation
myoblast
mouse
mice
muscle cell
myosin heavy chain
Opis:
The aim of the present study was to define the effect of TGF-β1 on C2C12 myoblasts myogenesis. TGF-β1 together with its receptor is a negative auto-paracrine regulator of myogenesis, which influences the proliferation, differentiation, and functions of muscle cells. TGF-β1 exerts highly significant inhibitory effect on differentiation of C2C12 mouse myoblasts manifested by the impairment of cell fusion and very low expression of myosin heavy chain. The study of differentiating C2C12 mouse myoblasts treated with TGF-β1 revealed 502 genes (436 down-regulated and 66 up-regulated) with statistically different expression. TGF-β1-regulated genes were identified to be involved in 29 biological processes, 29 molecular functions groups and 59 pathways. The strongest inhibiting effect of TGF-β1 was observed in the cadherin and Wnt pathways. The key-genes that could play the role of TGF-β1 targets during myoblasts differentiation was identified such as: Max, Creb1, Ccna2, Bax, MdfI, Tef, Tubg1, Cxcl5, Rho, Calca and Lgals4.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The shRNA-mediated silencing of VEGF-C illustrates its role in proliferation, chemosensitization, tumour colonization, and anchorage independence
Autorzy:
Tambe, P.
Purohit, I.
Suneja, D.
More, S.
Desai, P.
Shrivastava, N.
Powiązania:
https://bibliotekanauki.pl/articles/80325.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
vascular endothelial growth factor
gene expression
endothelial cell
breast cancer
lymphangiogenesis
metastasis
proliferation
chemosensitivity
tumour cell
RNAi
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of temperature on guaiacol peroxidase of Pyrus communis
Autorzy:
Saeidian, S.
Ghasemifar, E.
Powiązania:
https://bibliotekanauki.pl/articles/10793.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
temperature effect
guaiacol
Peroxidase
Pyrus communis
enzyme
plant growth
plant development
cell wall
Opis:
Peroxidase (EC 1.11.1.7; donor: hydrogen-peroxide oxidoreductase, POD) is one of the key enzymes controlling plant growth, differentiation and development. The enzyme participates in construction, rigidification and eventual lignification of cell walls, biosynthesis of ethylene from 1-aminocyclopropane-1-carboxylic acid and H2O2, regulation of auxin level through auxin catabolism, protection of tissue from damage and infection by pathogenic microorganisms, the oxidation of indoleacetic acid. For peroxidase activity in wild pears extract one pH optimum was observed at 6.5 that probably belong to atleast one isoenzyme. Activity of peroxidase in presence of guaiacol and H2O2 was optimum after incubation at 40 °C. Maximum activity of peroxidase is 300 % .Activity increased to 240 %, 300 %, 70 % and 10 % after 60 minute incubation at 30, 40, 45 and 60 °C for peroxidase. Incubation at high temperature (70 °C) was accompanied with decrease of activity to 10 % peroxidase activity.
Źródło:
International Letters of Natural Sciences; 2013, 05
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role of Arabidopsis thaliana aladin-related protein in the regulation of plant growth
Autorzy:
Queval, G.
Foyer, C.
Powiązania:
https://bibliotekanauki.pl/articles/80756.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
root meristem
thioredoxin
tripeptide thiol glutathione
cell cycle
nuclear pore complex
Arabidopsis thaliana
AAAS gene
plant growth
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermodynamics of irreversible plant cell growth
Autorzy:
Pietruszka, M
Lewicka, S.
Pazurkiewicz-Kocot, K.
Powiązania:
https://bibliotekanauki.pl/articles/58662.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
thermodynamics
irreversible process
plant cell
plant growth
cell wall
yielding
growth stimulator
growth inhibitor
modified growth equation
Opis:
The time-irreversible cell enlargement of plant cells at a constant temperature results from two independent physical processes, e.g. water absorption and cell wall yielding. In such a model cell growth starts with reduction in wall stress because of irreversible extension of the wall. The water absorption and physical expansion are spontaneous consequences of this initial modification of the cell wall (the juvenile cell vacuolate, takes up water and expands). In this model the irreversible aspect of growth arises from the extension of the cell wall. Such theory expressed quantitatively by time-dependent growth equation was elaborated by Lockhart in the 60's.The growth equation omit however a very important factor, namely the environmental temperature at which the plant cells grow. In this paper we put forward a simple phenomenological model which introduces into the growth equation the notion of temperature. Moreover, we introduce into the modified growth equation the possible influence of external growth stimulator or inhibitor (phytohormones or abiotic factors). In the presence of such external perturbations two possible theoretical solutions have been found: the linear reaction to the application of growth hormones/abiotic factors and the non-linear one. Both solutions reflect and predict two different experimental conditions, respectively (growth at constant or increasing concentration of stimulator/inhibitor). The non-linear solution reflects a common situation interesting from an environmental pollution point of view e.g. the influence of increasing (with time) concentration of toxins on plant growth. Having obtained temperature modified growth equations we can draw further qualitative and, especially, quantitative conclusions about the mechanical properties of the cell wall itself. This also concerns a new and interesting result obtained in our model: We have calculated the magnitude of the cell wall yielding coefficient (T) [m3 J-1•s-1] in function of temperature which has acquired reasonable numerical value throughout.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 183-190
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Black Orlon as promising material for bone tissue engineering
Autorzy:
Parizek, M.
Vetrik, M.
Hruby, M.
Lisa, V.
Bacakova, L.
Powiązania:
https://bibliotekanauki.pl/articles/284127.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
Orlon
polyacrylonitrile
tissue engineering
porous 3D scaffolds
cell adhesion
cell growth
osteoblasts
Źródło:
Engineering of Biomaterials; 2014, 17, no. 128-129; 4-6
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improved adhesion and growth of osteoblast-like MG-63 cells in cultures on titanium modified by gold particles
Autorzy:
Parizek, M.
Base, T.
Hruby, M.
Lisa, V.
Bacakova, L.
Powiązania:
https://bibliotekanauki.pl/articles/285778.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
metallic materials
titanium
surgical implants
gold microparticles
cell adhesion
cell growth
Opis:
Metallic materials are important for load-bearing bone implants. The osteointegration of these implants can be improved by appropriate surface modifications. Therefore, we present here a study of the cell growth on titanium surfaces modified with films created from gold microparticles. These particles in the form of microplates or polyhedral microcrystals were deposited on titanium plates from ethanol solutions, dried and annealed with a hydrogen flame. Some samples were additionally modified by polyethylene imine. The materials engendered from these modifications were used to investigate the adhesion and growth of human osteoblast-like MG-63 cells on these surfaces in the DMEM medium with 10% of fetal bovine serum. One day after seeding, the highest number of initially adhered cells was found on the surfaces modified by both types of gold microparticles. This trend was the same three and seven days after seeding. The numbers of cells on pure Ti and Ti modified only with gold particles were significantly higher than on samples which were modified with polyethylene imine. The cell spreading areas projected on the materials were significantly larger in cells on the samples with polyethylene imine modification. However, the shape of these cells was mostly rounded or star-like with thin and long protrusions, while on the materials without polyethylene imine, it was mostly polygonal. The cell proliferation activity was estimated from XTT test, based on the activity of mitochondrial enzymes. This test showed that the proliferation activities of osteoblast-like MG-63 cells of the 3rd and 7th days of the experiment were more pronounced on the samples modified only by gold microparticles. Immunofluorescence showed that the focal adhesion plaques containing vinculin and the fibers containing β-actin were most apparent, more numerous and more brightly stained in cells on Ti modified by gold microplates and gold polyhedral microcrystals, especially in comparison with the corresponding samples modified with polyethylene imine (Fig. 1). Thus, it can be concluded that the modification of titanium samples by both types of gold microparticles enhanced the adhesion and growth of MG 63 cells.
Źródło:
Engineering of Biomaterials; 2013, 16, no. 122-123 spec. iss.; 77
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expression of vascular endothelial growth factor and microvessel density in oral squamous cell carcinoma and its correlation with various clinico-pathological parameters
Autorzy:
Panigrahi, Ranjita
Jha, Narendra Kumar
Hota, Subhransu Kumar
Powiązania:
https://bibliotekanauki.pl/articles/38695726.pdf
Data publikacji:
2024-03-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
microvessel density
oral squamous cell carcinoma
vascular endothelial growth factor
Opis:
Introduction and aim. Angiogenesis, which is accomplished by capillary sprouting, is the process by which new vessels are created from pre-existing ones. In tumor, once their initial blood supply is depleted, a tumour is unable to grow without additional blood flow. Additionally, a tumor’s microvasculature, or microvessel density (MVD), increases along with its capacity to produce angiogenesis. We aimed to observe the relationship between the expression of vascular endothelial growth factor (VEGF) and MVD (using CD34) in oral squamous cell carcinoma (OSCC). Material and methods. The expression of VEGF and CD34 antibodies was analysed using immunohistochemistry method on 50 cases of histopathologically proved OSCC. The expression was correlated with clinicopathological parameters. Results. A significant correlation was observed between VEGF expression and gender, LVSI. No correlation between any other factors and the difference in VEGF expression was statistically significant. Similarly, the MVD expression was not found to be statistically significant in any of the pathological parameters. Conclusion. VEGF positivity as well as MVD were found to be independent of the tumor pathology. Tumor MVD was found to be independent of the expression of VEGF. Further studies in a larger study group may establish a significant association so that antiangiogenic targeted therapy may be initiated.
Źródło:
European Journal of Clinical and Experimental Medicine; 2024, 22, 1; 82-87
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of different methodological approaches to the in vitro study of tumour cells chemosensitivity
Autorzy:
Paduch, R
Slotwinska, M.
Stachura, A.
Rzeski, W.
Zdzisinska, B.
Kandefer-Szerszen, M.
Powiązania:
https://bibliotekanauki.pl/articles/961243.pdf
Data publikacji:
2001
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
chemosensitivity
etoposide
tumour cell
drug sensitivity
cisplatin
gelatin sponge
growth
in vitro
Opis:
Drug sensitivity assay was performed using two human tumour celi lines: HeLa and Hep-2 cultivated in two-dimensional monolayer celi cultures and three-dimensional cultures on gelatine sponge SpongostanK. Two cytostatics with different mechanisms of anti-tumour action were used: cisplatin and etoposide. Chemosensitivity of tumour cells was assessed by counting the number of viable and nonviable cells (cytostatic and cytotoxic activity of drugs), by counting the number of apoptotic cells and by clonogenic assay of viable cells. We found that the clonogenic assay was morę sensitive than the other tests used, especially after long-term (7 days) treatment of tumour cells with cytostatics. A short (24h) treatment with cytostatics gave false results which were not confirmed after prolonged treatment with cytostatics. We suppose that short treatment tests should not be used for examination of the chemosensitivity of tumour cells isolated from patients. Tumour cells growing on SpongostanH were viable for a longer time than in monolayer cultures and exhibited chemosensitivity comparable to monolayer celi cultures despite of their multilayer growth on gelatine sponge.
Do badań wrażliwości na cytostatyki użyto dwie ludzkie linie nowotworowe: HeLa i Hep-2, hodowane w formie murawy dwuwymiarowej (płaskiej) oraz w formie przestrzennej, trójwymiarowej, na gąbce żelatynowej Spongostan". W badaniach użyto cytostatyki posiadające różny mechanizm działania przeciwnowotworowego, a mianowicie cisplatynę i etopozyd. Wrażliwość komórek nowotworowych na chemioterapeutyki określano ilością komórek przeżywających i martwych (cytostatyczne i cytotoksyczne właściwości leków), ilością komórek apoptotycznych oraz oceniano klonogenne właściwości komórek przeżywających. Stwierdzono, że ocena klonogennych właściwości komórek jest metodą bardziej czułą w porównaniu z innymi testami, szczególnie po długim (7-dniowym) kontakcie komórek z cytostatykami. Ocena krótkotrwałego (24-godz.) kontaktu komórek nowotworowych z cytostatykami dawała fałszywe wyniki, nie potwierdzone po długotrwałej inkubacji komórek z cytostatykami. Uważamy, że testy polegające na ocenie efektu krótkotrwałej inkubacji komórek z lekami nie powinny być stosowane do oceny wrażliwości na chemioterapeutyki komórek nowotworowych izolowanych od pacjenta. Komórki nowotworowe rosnące na Spongostanie” były żywe dłużej niż rosnące w hodowlach płaskich i pomimo wielowarstwowego wzrostu na gąbce żelatynowej wykazywały wrażliwość na leki porównywalną z hodowlami płaskimi.
Źródło:
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia; 2001, 56
2083-3563
0066-2232
Pojawia się w:
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The 3D simulation model for growth and cell divisions applied to the surface layer of cells of the shoot apex
Autorzy:
Nakielski, J.
Kucypera, K.
Piekarska-Stachowiak, A.
Lipowczan, M.
Powiązania:
https://bibliotekanauki.pl/articles/80257.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
simulation model
3D model
cell division
growth
superficial layer
cell
statistical analysis
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:
The presence of CD25 on bovine WC1 plus gamma delta T cells is positively correlated with their production of IL-10 and TGF-beta, but not IFN-gamma
Autorzy:
Maslanka, T.
Jaroszewski, J.J.
Markiewicz, W.
Ziolkowski, H.
Barski, D.
Powiązania:
https://bibliotekanauki.pl/articles/32183.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cattle
WC1 cell
T cell
T lymphocyte
transforming growth factor-beta
interleukin 10
interferon-gamma
CD25 antigen
CD25 molecule
Opis:
WC1+ cells in cattle exhibit both regulatory and effector activities. However, it has not been elucidated whether they are so plastic that both activities co-exist in one cell or there are separate subpopulations of effector and regulatory cells. Since the production of IFN-γ and IL-10 seems to be related to WC1+ cells’ effector and regulatory function, respectively, the main aim of this study was to determine whether those cytokines are produced by separate subpopulations of WC1+, or are co-produced by the same cells. Due to increasingly frequent emphasised role of consumption of IL-2 in the mechanism of suppressor action of mouse CD25+CD4+ T regulatory cells, expression of the receptor’s α chain for interleukin 2 (CD25) on WC1+ lymphocytes has been evaluated. An average of 5.21% of WC1+ cells obtained from PBMCs of 12-month-old heifers show constitutive expression of the CD25 molecule, with CD25highWC1+ and CD25lowWC1+ cells accounting for 1.05% and 4.10% of WC1+ lymphocytes, respectively. For detection of intracellular cytokine production, PBMCs were stimulated with concanavalin A. Both IFN-γ- and IL-10-producing cells within the CD25-WC1+ and CD25+WC1+ subpopulations were mainly separate subpopulations. The average percentage of IFN-γ+IL-10-, IFN-γ-IL-10+ and IFN-γ+IL-10+ cells among CD25-WC1+ lymphocytes was 4.03%, 2.67% and 0.51%, respectively. A positive correlation was observed between the presence of the CD25 molecule on WC1+ lymphocytes and production of IL-10 and TGF-β, because the average percentage of IFN-γ-IL-10+ and IFN-γ+IL-10+ among CD25+WC1+ lymphocytes was 3 and 4.5 times higher as compared to the corresponding cells in the CD25-WC1+ subpopulation, whereas the percentage of IFN-γ+IL-10- cells in both the subpopulations was not significantly different. The percentage of TGF-β+ cells within the CD25+WC1+ subpopulation was 2.72 times as high as that of CD25-WC1+ lymphocytes. Therefore, with respect to the production of IFN-γ, IL-10 and TGF-β, CD25+WC1+ lymphocytes turn out to have a more suppressor profile than CD25-WC1+.
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regulation of nuclear phospholipase C activity.
Autorzy:
Manzoli, Lucia
Billi, Anna
Martelli, Alberto
Cocco, Lucio
Powiązania:
https://bibliotekanauki.pl/articles/1043270.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
nucleus
cell growth
regulation
phospholipase C
Opis:
A body of evidence, linking inositide-specific phospholipase C (PI-PLC) to the nucleus, is quite extensive. The main isoform in the nucleus is PI-PLCβ1, whose activity is up-regulated in response to insulin-like growth factor-1 (IGF-1) or insulin stimulation. Whilst at the plasma membrane this PI-PLC is activated and regulated by Gαq/α11 and Gβg subunits, there is yet no evidence that qα/α11 is present within the nuclear compartment, neither GTP-γ-S nor AlF4 can stimulate PI-PLCβ1 activity in isolated nuclei. Here we review the evidence that upon occupancy of type 1 IGF receptor there is translocation to the nucleus of phosphorylated mitogen-activated protein kinase (MAPK) which phosphorylates nuclear PI-PLCβ1 and triggers its signalling, hinting at a separate pathway of regulation depending on the subcellular location of PI-PLCβ1. The difference in the regulation of the activity of PI-PLCβ1mirrors the evidence that nuclear and cytoplasmatic inositides can differ markedly in their signalling capability. Indeed, we do know that agonists which affect nuclear inositol lipid cycle at the nucleus do not stimulate the one at the plasma membrane.
Źródło:
Acta Biochimica Polonica; 2004, 51, 2; 391-395
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The two-phase Hell-Shaw flow: construction of an exact solution
Autorzy:
Malaikah, K. R.
Powiązania:
https://bibliotekanauki.pl/articles/265877.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
falka Laplace'a
twierdzenie Schwarza
Laplace growth
Hele-Shaw cell
Schwarz function
free boundary problem
Opis:
We consider a two-phase Hele-Shaw cell whether or not the gap thickness is time-dependent. We construct an exact solution in terms of the Schwarz function of the interface for the two-phase Hele-Shaw flow. The derivation is based upon the single-valued complex velocity potential instead of the multiple-valued complex potential. As a result, the construction is applicable to the case of the time-dependent gap. In addition, there is no need to introduce branch cuts in the computational domain. Furthermore, the interface evolution in a two-phase problem is closely linked to its counterpart in a one-phase problem.
Źródło:
International Journal of Applied Mechanics and Engineering; 2013, 18, 1; 249-257
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of iron limitation on cells of the diatom Cyclotella meneghiniana Kützing
Autorzy:
Lewandowska, J.
Kosakowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/47921.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
iron
chlorophyll a
cell
Cyclotella meneghiniana
protein
aquatic ecosystem
Baltic Sea
growth
diatom
limitation
Opis:
The response of the Baltic diatom Cyclotella meneghiniana to iron deficiency was examined. The following growth parameters were measured: cell number, chlorophyll a and protein content. The results demonstrate the ability of this diatom to grow well with minimal iron availability; however, the rate of growth fell markedly at the lowest iron(III) concentration. The results of spectrophotometric chlorophyll a measurements and protein assays using the Lowry and Bradford methods indicated a significant decrease in their quantities. Iron may therefore be an important regulatory factor controlling the growth of diatom C. meneghiniana in an aquatic ecosystem.
Źródło:
Oceanologia; 2004, 46, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phosphorylation sites of HER2/c-erbB-2: role in cell growth and in disease
Autorzy:
Khurshid, Rukhshan
Saleem, Mahjabeen
Gul-e-Raana, -
Akhthar, Muhammad
Powiązania:
https://bibliotekanauki.pl/articles/1039198.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
phosphorylation sites
HER2/c-erbB-2
cell growth and disease
Opis:
The protein kinase c-erbB-2 belongs to the family of receptor tyrosine kinase and is involved in oncogenesis. The present study predicts different phosphorylation sites of HER2/c-erbB-2 which are important in preventing or developing cancer, especially breast cancer. Sequence homology showed highest homology (77%) with epidermal growth factor receptor kinase domain. According to PROSITE search result, active sites of c-erbB-2 are N-lobe (glycine rich phosphate binding loop). Catalytic loop with presumptive catalytically active of Asp108 is phosphorylated by tyrosine protein kinase. A-loop, activation loop, becomes phosphorylated and activates the substrate binding. The study strengthens our knowledge regarding HER2 signaling by the detection of uncharacterized signaling proteins, establishing phosphorylation of an activation loop and helps us to make assumptions about the role of such previously unidentified proteins. On the basis of importance of HER2 in breast cancer as well as in other diseases, this study provides fruitful information for designing new therapeutic strategies.
Źródło:
Acta Biochimica Polonica; 2014, 61, 4; 699-703
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
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