The binding of [ 125 I]-factor Xa to human umbilical vein endothelial cell (HUVEC) monolayers was studied. At 7ะC, [ 125 I]-factor Xa bound to a single class of binding sites with a dissociation constant value of 6.6 { 0.8 nM and a binding site density of 57,460 { 5,200 sites/cell (n ร 3). Associati
Culture of human umbilical vein endothelial cells on immobilized vascular endothelial growth factor
โ Scribed by Yoshihiro Ito; Hirokazu Hasuda; Hiroshi Terai; Takashi Kitajima
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 387 KB
- Volume
- 74A
- Category
- Article
- ISSN
- 1549-3296
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
Vascular endothelial growth factor (VEGF) was immobilized on substrata in photoreactive gelatin to control the adhesion and growth of vascular endothelial cells. The gelatin and VEGF were mixed in water and cast on a polystyrene dish or a silaneโcoated glass plate. The surface was then photoirradiated in the presence or absence of a photomask and washed. Toughness of the immobilized material was confirmed by ethanol treatment. Human umbilical vein endothelial cells (HUVECs) grew on the immobilized VEGF but not on a nontreated surface. Growth of HUVEC increased significantly with an increase in the amount of immobilized VEGF, and the effects were inhibited by treatment with antiโVEGF antibody. Thus, immobilized VEGF specifically interacted with HUVECs to permit growth in culture. Micropatterning of HUVEC cultures was also achieved using micropatternโimmobilized VEGF. This patterning technique may be useful for the formation of blood vessel networks in vitro. ยฉ 2005 Wiley Periodicals, Inc. J Biomed Mater Res, 2005
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