期刊
FEBS LETTERS
卷 584, 期 15, 页码 3415-3423出版社
WILEY
DOI: 10.1016/j.febslet.2010.06.039
关键词
Angiogenesis; Microgravity; iNOS; Nitric oxide; Endothelial cell
资金
- KB Chandrasekhar Research Foundation
Angiogenesis is a physiological process involving the growth of blood vessel in response to specific stimuli. The present study shows that limited microgravity treatments induce angiogenesis by activating macrovascular endothelial cells. Inhibition of nitric oxide production using pharmacological inhibitors and inducible nitric oxide synthase (iNOS) small interfering ribo nucleic acid (siRNA) abrogated microgravity induced nitric oxide production in macrovascular cells. The study further delineates that iNOS acts as a molecular switch for the heterogeneous effects of microgravity on macrovascular, endocardial and microvascular endothelial cells. Further dissection of nitric oxide downstream signaling confirms that simulated microgravity induces angiogenesis via the cyclic guanosine monophosphate (cGMP)-PKG dependent pathway. (C) 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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