Adipokine resistin promotes in vitro angiogenesis of human endothelial cells

Cardiovascular Research
Hong MuChangyi Chen

Abstract

Resistin may be associated with obesity and cardiovascular diseases. However, it is unknown whether resistin directly contributes to angiogenesis. In the present study, we evaluated the effects of resistin on angiogenic potential, including endothelial cell proliferation, migration, and capillary-like tube formation. Human coronary artery endothelial cells (HCAECs) were treated with resistin. Cell proliferation was evaluated by [3H]thymidine incorporation and MTS assays. Cell migration was assessed by a modified Boyden chamber assay. Capillary-like tube formation was studied with a Matrigel model. Several gene expression levels were determined by real-time PCR. Activation of mitogen-activated protein kinases (MAPKs) was determined by Bio-Plex luminex analyzer. Basic fibroblast growth factor (bFGF) was used as a control. Human umbilical vein endothelial cells (HUVECs) and human lung microvascular endothelial cells (HMVEC-L) were also included. Resistin induced both endothelial proliferation and migration in a dose- and time-dependent manner with the maximal effect at 40 ng/ml. Both resistin-induced cell proliferation and migration could be effectively blocked by a resistin-neutralization antibody. In addition, resistin promoted ...Continue Reading

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