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Wyszukujesz frazę "fibronectin" wg kryterium: Temat


Wyświetlanie 1-7 z 7
Tytuł:
Human plasma and cerebrospinal fibronectins differ in the accessibility of the epitopes on the N-terminal domains
Autorzy:
Pupek, Małgorzata
Lemańska-Perek, Anna
Jasonek, Jolanta
Kątnik-Prastowska, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/1040377.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
cerebrospinal fluid
cell-binding fibronectin domain
N-terminal fibronectin domain
C-terminal fibronectin domain
fibronectin
Opis:
Three monoclonal antibodies specific to the central cell-binding and the C- and N-terminal domains of fibronectin (FN) were used to test antigenic epitope accessibility on human plasma and cerebrospinal fibronectins. In the plasma group, the mean N-terminal FN domain immunoreactivity was about one fourth that of the cell-binding and C-terminal domains, whereas in cerebrospinal fluid they were nearly equal. In the presence of 0.5-6 M urea N-terminal domain immunoreactivity in the plasma increased 3-6-fold, but it decreased 0.7-3-fold in the cerebrospinal fluid. Analysis of fibronectin domain immunoreactivities of the cell-binding and N-terminal domains by a panel of specific monoclonal antibodies may reveal N-terminal fibronectin domain accessibility for reaction with biological partner ligand(s) and/or processes in which FN could be implicated. Such determinations may have important clinical implications.
Źródło:
Acta Biochimica Polonica; 2010, 57, 3; 333-337
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fibronectin fragments in human seminal plasma.
Autorzy:
Kątnik-Prastowska, Iwona
Przybysz, Magdalena
Chełmońska-Soyta, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1041450.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
cellular domain of fibronectin
seminal plasma
fibronectin
Opis:
The study has revealed the presence of fibronectin (FN) fragments and a lack of intact FN in 72 seminal plasma samples. The FN fragmentation was examined by immunoblotting with a monoclonal antibody specific to the central cellular FN domain and was confirmed with a monoclonal antibody directed to the C-terminal domain of FN. Nine FN fragments between 60 and 200 kDa and five fragments of 60-150 kDa were identified in seminal plasma samples of normozoospermic and of terato-, oligoterato-, and oligoasthenoterato-spermic groups, respectively. The relative amounts of the 60, 90 and 100 kDa FN fragments were 2-3 times higher in seminal plasmas with abnormal semen characteristics than in the normozoospermic group. The results suggest that seminal plasma FN fragments may contribute to fertilization and the analysis of FN fragmentation may have a diagnostic value in andrological investigations.
Źródło:
Acta Biochimica Polonica; 2005, 52, 2; 557-560
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Signal transduction in confluent C3H 10T1/2 cells. The role of focal adhesion kinase.
Autorzy:
Miłoszewska, Joanna
Trembacz, Halina
Janik, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/1044183.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
integrins
FAK
ERK
fibronectin
contact inhibition
Opis:
The activities of extracellular signal-regulated kinases (ERK1/ERK2) is required for proliferation of several types of cells. The performed analysis showed stimulation of ERK's by fetal calf serum (FCS) or fibronectin in the C3H 10T1/2 cell cultures at logarithmic phase of growth. The ERKs activity was not stimulated in confluent cells. This could not be accounted for a partial down regulation of ERK since its level was stable in both types of cells regardless of their density and kind of stimulation. Searching for ERK upstream elements we studied the integrin receptor gene transcript by RT-PCR and focal adhesion kinase (FAK) by Western blotting and phosphorylation assays. It was found that FCS and fibronectin stimulated phosphorylating activity of FAK in the cells at the logarithmic phase of growth, but were inefficient in the confluent cells. RT-PCR showed the presence of α5 and β1 integrin transcripts, and p125FAK was at the same level regardless of the type of stimulation. These data indicate that the ability of FAK to be activated plays an important role in ERK regulation and, in consequence in proliferation and growth inhibition during confluence.
Źródło:
Acta Biochimica Polonica; 2001, 48, 1; 175-181
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interaction of human fibronectin with Candida glabrata epithelial adhesin 6 (Epa6)
Autorzy:
Zajac, Dorota
Karkowska-Kuleta, Justyna
Bochenska, Oliwia
Rapala-Kozik, Maria
Kozik, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/1038757.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Candida glabrata
epithelial adhesins
fibronectin
surface plasmon resonance
Opis:
Adherence of pathogens to extracellular matrix proteins and host cells is one of the essential steps in the microbial colonization of the human organism. The adhesion of C. glabrata, i.e. the second major causative agent of human disseminated candidiases after C. albicans, to the host epithelium mainly engages specific fungal cell wall proteins - epithelial adhesins (Epa) - in particular, Epa1, Epa6 and Epa7. The aim of the present study was to identify the major Epa protein involved in the interactions with the human extracellular matrix protein - fibronectin - and to present the kinetic and thermodynamic characteristics of these interactions. A relatively novel gel-free approach, i.e. the "cell surface shaving" that consists in short treatment of fungal cells with trypsin was employed to identify the C. glabrata surfaceome. Epa6 was purified, and the isolated protein was characterized in terms of its affinity to human fibronectin using a microplate ligand-binding assay and surface plasmon resonance measurements. The dissociation constants for the binding of Epa6 to fibronectin were determined to range between 9.03 × 10-9 M and 7.22 × 10-8 M, depending on the method used (surface plasmon resonance measurements versus the microplate ligand-binding assay, respectively). The identified fungal pathogen-human host protein-protein interactions might become a potential target for novel anticandidal therapeutic approaches.
Źródło:
Acta Biochimica Polonica; 2016, 63, 3; 417-426
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antioxidants with carcinostatic activity (resveratrol, vitamin E and selenium) in modulation of blood platelet adhesion
Autorzy:
Zbikowska, H.M.
Olas, B.
Powiązania:
https://bibliotekanauki.pl/articles/70867.pdf
Data publikacji:
2000
Wydawca:
Polskie Towarzystwo Fizjologiczne
Tematy:
carcinostatitc activity
vitamin E
cardiovascular disorder
resveratrol
fibronectin
collagen
sodium selenate
blood vessel
adhesion
hemostasis
fibrinogen
sodium selenite
antioxidant
selenium
platelet
Źródło:
Journal of Physiology and Pharmacology; 2000, 51, 3
0867-5910
Pojawia się w:
Journal of Physiology and Pharmacology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Collagen mRNA and fibronectin are increased in healing gastric ulcers in man
Autorzy:
Gillessen, A
Shahin, M.
Pohle, T.
Foerster, E.
Domschke, W.
Powiązania:
https://bibliotekanauki.pl/articles/70265.pdf
Data publikacji:
1995
Wydawca:
Polskie Towarzystwo Fizjologiczne
Tematy:
gastric ulcer
RNA
submucosa
gastric mucosa
collagen
fibronectin
human health
man
growth regulator
hybridization
polyclonal antibody
epithelial layer
procollagen mRNA
antral ulcer
human placenta
Źródło:
Journal of Physiology and Pharmacology; 1995, 46, 1
0867-5910
Pojawia się w:
Journal of Physiology and Pharmacology
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
    Wyświetlanie 1-7 z 7

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