Mutual Balance between Vasohibin-1 and Soluble VEGFR-1 in Endothelial Cells

Pharmaceuticals

Hiroki Miyashita²  Hirotada Suzuki²  Akihide Ohkuchi¹ 

[1] Department of Obstetrics and Gynecology, Jichi Medical University School of Medicine, Japan;Department of Vascular Biology, Institute of Development Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan

关键词: angiogenesis inhibitor;    endothelial cell;    VASH1;    sVEGFR-1;   

DOI  :  10.3390/ph4060782

来源: mdpi

【 摘 要 】

Vasohibin-1 (VASH1) is a VEGF-inducible gene of endothelial cells (ECs) that acts as a negative feedback regulator of angiogenesis. To further characterize the function of VASH1, we transfected human VASH1 gene into the mouse EC line MS1, established stable VASH1 expressing clones, and determined gene alteration by cDNA microarray analysis. Among the various angiogenesis-related genes, vascular endothelial growth factor type 1 receptor (VEGFR-1) and its alternative spliced form, soluble VEGFR1 (sVEGFR-1), were found to be the most significantly down-regulated genes. Transient overexpression of VASH1 in human umbilical vein endothelial cells confirmed the down-regulation of VEGFR-1 and sVEGFR-1. sVEGFR-1 is a decoy receptor for VEGF and inhibits angiogenesis. Interestingly, when sVEGFR-1 was overexpressed in ECs, it inhibited the expression of VASH1 in turn. These results suggest that VASH1 and sVEGFR-1, two angiogenesis inhibitors, mutually balance their expressions in ECs.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.