作者
Andreas H Zisch, Matthias P Lutolf, Martin Ehrbar, George P Raeber, Simone C Rizzi, Neil Davies, Hugo Schmökel, Deon Bezuidenhout, Valentin Djonov, Peter Zilla, Jeffrey A Hubbell
发表日期
2003/12
期刊
The FASEB journal
卷号
17
期号
15
页码范围
2260-2262
出版商
Federation of American Societies for Experimental Biology
简介
Local, controlled induction of angiogenesis remains a challenge that limits tissue engineering approaches to replace or restore diseased tissues. We present a new class of bioactive synthetic hydrogel matrices based on poly(ethylene glycol) (PEG) and synthetic peptides that exploits the activity of vascular endothelial growth factor (VEGF) alongside the base matrix functionality for cellular ingrowth, that is, induction of cell adhesion by pendant RGD‐containing peptides and provision of cell‐mediated remodeling by cross‐linking matrix metalloproteinase substrate peptides. By using a Michael‐type addition reaction, we incorporated variants of VEGF121 and VEGF165 covalently within the matrix, available for cells as they invade and locally remodel the material. The functionality of the matrix‐conjugated VEGF was preserved and was critical for in vitro endothelial cell survival and migration within the matrix …
引用总数
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