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- W2103852028 abstract "Obiective: Capacitatea celulelor stem adulte de a se diferen]ia in celule endoteliale le transform intr-o posibil surs in ingineria vaselor. Obiectivul acestui studiu a fost de a demonstra capacitatea celulelor stem hematopoietice umane de a se diferen]ia in celule endoteliale, in cultur, dup adugarea de supliment de cre[tere pentru celulele endoteliale (ECGS Endothelial Cell Growth Supplement). De asemenea, am comparat comportarea acestor celule cu cel al celulelor endoteliale ob]inute din vena (HUVEC). Material [i metode: Au fost folosite celulele CD34+ ob]inute prin separare imunomagnetic din cordonul ombilical uman [i sângele placentar. Rezultate: Dupa 12-15 zile de men]inere intr-un mediu de cultur con]inând ECGS, celulele au dezvoltat modificri morfologice caracteristice celulelor endoteliale, iar analiza imunocitochimic a demonstrat prezen]a antigenului de suprafa] CD31 [i a factorului von Willebrand. Analiza flow-citometric a moleculelor de adeziune a celulelor endoteliale (ECAM) a artat c celulele endoteliale derivate din celulele CD34+ exprim CD54/ICAM-1 9,65±0,2% [i CD106/VCAM 7,73±0,3%, valori similare cu cele exprimate de celulele HUVEC. Dup incubare cu TNF, expresia ECAM a crescut doar la nivelul celulelor HUVEC. Concluzii: Datele noastre demonstreaz c o frac]iune din celulele CD34+ circulante pot dobândi caracteristici de celule endoteliale când sunt cultivate cu ECGS, dar ele sunt func]ional diferite de celulele HUVEC. Cuvinte cheie: celul stem hematopoietic, celul endotelial, sânge ombilical, CD34+, diferen]iere celular" @default.
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- W2103852028 date "2004-01-01" @default.
- W2103852028 modified "2023-09-27" @default.
- W2103852028 title "ENDOTHELIAL CELLS DERIVED FROM CORD BLOOD CD34+ HEMATOPOIETIC STEM CELLS - A POSSIBLE SOURCE FOR VASCULAR ENGINEERING" @default.
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