ABSTRACT
<p><b>OBJECTIVE</b>To observe the effects of danshensu on function of endothelial progenitor cells (EPCs) from peripheral blood which were damaged by oxidative low density lipoprotein (Ox-LDL). And study its possible mechanism.</p><p><b>METHOD</b>Total mononuclear cells (MNCs) were isolated from peripheral blood by ficoll density gradient centrifugation, and were identified by demonstrating the expression of CD34, VEGFR-2 and AC133 with flow cytometry, to sure that all the cells needed were EPCs. Then the cells were plated on fibronectin-coated culture dishes. After incubation for 7 days, attached cells were collected and divided into three groups: Control group, Ox-LDL group, danshensu intervention group, stimulated with different cencentrations of danshensu (2, 10 and 50 mg x L(-1)), adhesion assay respectively. EPCs adhesion assay were performed by replating those on fibronectin-coated dishes, then adherent cells were counted. And take cell supernate of each group to carry on the SOD, MDA content examination.</p><p><b>RESULT</b>Ox-LDL impaired EPC proliferative and adhesive capacity. In Ox-LDL group, The SOD content obviously drops, the MDA content obviously elevates. After danshensu interventing for 24 h, adhesive EPCs and migratory EPCs were significantly increased. Compared with Ox-LDL group, the SOD content of Danshensu intervention group obviously increased and the MDA content obviously reduced.</p><p><b>CONCLUSION</b>danshensu could improve proliferative and adhesive capacity of EPCs that were impaired by Ox-LDL. The mechanism might relate to the oxidation resistance damage.</p>