期刊
ANALYTICAL BIOCHEMISTRY
卷 369, 期 2, 页码 241-247出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ab.2007.06.010
关键词
angiogenesis; consomic rats; aldehyde-terminated self-assembled nionolayers (SAMs)
资金
- NHLBI NIH HHS [N01-HV-28182, N01 HV028182, N01HV28182] Funding Source: Medline
Angiogenesis plays a central role in a variety of important biological processes such as reproduction, tissue development, and wound healing, as well as being critical to tumor formation in cancer. The development of chromosomal substitution (consomic) rat strains has permitted the chromosomal localization of genetic factors critical to angiogenesis, but many questions remain as to the mechanisms involved. Here we utilize a novel cell capture assay to assess changes in the functional expression of vascular endothelial growth factor (VEGF) receptors on the surface of vascular endothelial cells isolated from rat strains that are normal or impaired in angiogenesis. We show that functional VEGF receptor expression is increased under hypoxic conditions in rat strains that exhibit normal angiogenesis but not in a strain impaired in angiogenesis. This result implicates the dysregulation of VEGF receptor expression levels on the endothelial cell surface as a key factor in impaired angiogenesis. (c) 2007 Elsevier Inc. All rights reserved.
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