作者: Yan Zhao , Manabu Okuyama , Hiroyuki Hashimoto , Yoshiaki Tagawa , Takahito Jomori
DOI: 10.1016/J.TIV.2009.08.001
关键词:
摘要: Fibrates, the ligands of peroxisome proliferator-activated receptor alpha (PPARalpha), are used as a class lipid-lowering drugs in clinical practice for treatment dyslipidemia. Fibrates well tolerated most cases concomitantly with occasional adverse reactions including muscular toxicity, which is enhanced by combination statins. This study was designed to investigate effects bezafibrate PPARalpha agonist on human embryo rhabdomyosarcoma (RD) cells and possible mechanisms responsible bezafibrate-mediated myopathy. The results revealed that caused dose-dependent decrease cell viability, fortified association atorvastatin at pharmacological dose. Bezafibrate toxic doses 300 1000microM upregulated mRNA level, counteracted antagonist (MK886). dose induced typical apoptotic characteristics related inhibition phosphorylation Akt blocked antagonist. Toxic initiated significant increase pyruvate dehydrogenase kinase 4 protein levels, compromised MK886. These suggest critical roles signaling bezafibrate-induced myotoxicity involvement apoptosis through pathway.