TNFα in atherosclerosis, myocardial ischemia/reperfusion and heart failure

被引:348
作者
Kleinbongard, Petra [1 ]
Heusch, Gerd [1 ]
Schulz, Rainer [1 ]
机构
[1] Univ Klinikum Essen, Inst Pathophysiol, D-45122 Essen, Germany
关键词
Cardioprotection; Heart failure; Myocardial function; Myocardial ischemia; Myocardial reperfusion; Remodeling; Tumor necrosis factor alpha; TNF alpha antagonists; Vascular function; TUMOR-NECROSIS-FACTOR; NF-KAPPA-B; NITRIC-OXIDE SYNTHASE; LEFT-VENTRICULAR DYSFUNCTION; VASCULAR SMOOTH-MUSCLE; MITOCHONDRIAL PERMEABILITY TRANSITION; IDIOPATHIC DILATED CARDIOMYOPATHY; ENDOTHELIAL BARRIER DYSFUNCTION; ADULT FELINE MYOCARDIUM; APOE-DEFICIENT MICE;
D O I
10.1016/j.pharmthera.2010.05.002
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
TNF alpha is crucially involved in the pathogenesis and progression of atherosclerosis, myocardial ischemia/reperfusion injury and heart failure. The formation and release of TNF alpha and its downstream signal transduction cascade following activation of its two receptor subtypes is characterized, with special emphasis on the cardiovascular system. In the vasculature, TNF alpha alters endothelial and vascular smooth muscle cell function as well as endothelial cell blood cell interaction; the importance of such alterations for vascular dysfunction, the initiation and progression of atherosclerosis are discussed. In the myocardium, TNF alpha contributes to reversible and irreversible ischemia/reperfusion injury, post-myocardial infarction remodeling and heart failure development. Simultaneously, TNF alpha also contributes to cardioprotection by ischemic conditioning. Emphasis is placed on such ambivalent (detrimental vs. beneficial) role of TNF alpha, which appears to be dose- and time-dependent and in part related to the activation of the specific receptor subtype. Given the ambivalent role of TNF alpha and its receptors, it is not surprising that clinical trials using compounds that antagonize TNF alpha revealed ambiguous and largely disappointing results in cardiovascular disease, notably in heart failure. Future perspectives to antagonize and/or potentially recruit TNF alpha in the cardiovascular system are critically discussed. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码:295 / 314
页数:20
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