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Oxidized low density lipoprotein and peroxisome proliferator-activated receptor α induced endogenous fibroblast growth factor 21 upregulation is protective against apoptosis in cardiac endothelial cells / 中华心血管病杂志
Chinese Journal of Cardiology ; (12): 1113-1117, 2010.
Article in Chinese | WPRIM | ID: wpr-244093
Responsible library: WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of peroxisome proliferator-activated receptor (PPAR)α agonist bezafibrate and oxidized low density lipoprotein (ox-LDL) on fibroblast growth factor 21 (FGF21) expression and apoptosis in cardiac endothelial cells.</p><p><b>METHODS</b>The mRNA level of FGF21 was determined by real time-PCR and the protein concentration of FGF21 in culture media was detected by enzyme-linked immunosorbent assay in cultured cardiac microvascular endothelial cells (CMECs) incubated with 10, 50, 100 µg/ml ox-LDL, 50, 100 or 200 µmol/L bezafibrate alone or in combination with 100 µg/ml ox-LDL. CMECs apoptosis in various treatment groups was also determined.</p><p><b>RESULTS</b>FGF21 mRNA and protein expressions were significantly upregulated in proportion to increased ox-LDL, and 200 µmol/L bezafibrate alone also significantly upregulated FGF21 expression and CMECs apoptosis was significantly reduced in 200 µmol/L bezafibrate + 100 µg/ml ox-LDL group compared to 100 µg/ml ox-LDL group (P < 0.05).</p><p><b>CONCLUSIONS</b>Our data suggest that bezafibrate and ox-LDL induced upregulation of FGF21 might mediate the protective effect against apoptosis. Endogenous FGF21 could thus play important roles in improving the endothelial function at the early stage of atherosclerosis and slowing the development of coronary heart disease.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Pathology / Pharmacology / Rats / Bezafibrate / Endothelium, Vascular / Cells, Cultured / Rats, Wistar / Apoptosis / Cell Biology / PPAR alpha Language: Chinese Journal: Chinese Journal of Cardiology Year: 2010 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pathology / Pharmacology / Rats / Bezafibrate / Endothelium, Vascular / Cells, Cultured / Rats, Wistar / Apoptosis / Cell Biology / PPAR alpha Language: Chinese Journal: Chinese Journal of Cardiology Year: 2010 Type: Article