Effects of endothelial progenitor cell-conditioned medium on the proliferation, adhesion and migration of vascular smooth muscle cells / 中国应用生理学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the effects of endothelia progenitor cells conditioned medium (EPC-CM) on the migration, adhesion and proliferation of vascular smooth muscle cells (VSMCs).</p><p><b>METHODS</b>Mononuclear cells were isolated from rat bone marrow by density gradient centrifugation,plated on dishes precoated with 5% fibronectin, and then cultured with complete M199 medium (including 15% fetal calf serum, 10 microg/L VEGF and 5 microg/L bFGF). EPC-CM was collected and used to incubate VSMCs isolated from rat arteriae aorta. After 24 h, VSMCs proliferation, adhesion and migration were assayed with CCK-8, adhesion test and modified Boyden chamber assay, respectively.</p><p><b>RESULTS</b>The proliferation, adhesion and migration of VSMCs were obviously decreased when the cells were cultured with EPC-CM.</p><p><b>CONCLUSION</b>EPC-CM could inhibit VSMC functions, which would be one of the mechanisms against atherosclerosis by EPCs.</p>