期刊
JOURNAL OF MOLECULAR AND CELLULAR CARDIOLOGY
卷 50, 期 6, 页码 964-971出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.yjmcc.2011.02.004
关键词
Left ventricular hypertrophy; Cardiac remodeling; Mechanosensitive channels; Cardiac myocyte; Histone deacetylases; Hypertension
资金
- National Heart, Lung, and Blood Institute [R01HL088101-04, R01HW88101-02S1]
- Lebanese University
- Lebanese National Council for Scientific Research (CNRS)
- COMSTECH-TWAS [09-122 RG/PHA/AF/AC_C]
Left ventricular hypertrophy due to hypertension represents a major risk factor for adverse cardiovascular events and death. In recent years, the prevalence of cardiac hypertrophy has increased due to obesity and an aging population. Notably, a significant number of individuals have persistent cardiac hypertrophy in the face of blood pressure that is normalized by drug treatment. Thus, a better understanding of the processes underlying the cardiac remodeling events that are set into play by hypertension is needed. At the level of the cardiac myocytes, hypertrophic growth is often described as physiological, as occurs with exercise, or pathological, as seen with hypertension. Here we discuss recent developments in three areas that are fundamental to pathological hypertrophic growth of cardiac myocytes. These areas are the transient receptor potential canonical (TRPC) channels, mammalian target of rapamycin (mTOR) complexes, and histone deacetylase (HDAC) enzymes. In the last several years, studies in each of these areas have yielded new and exciting discoveries into the genesis of pathological growth of cardiac myocytes. The phosphoinositide 3-kinase-Akt signaling network may be the common denominator that links these areas together. Defining the interrelationship among TRPC channels, mTOR signaling, and HDAC enzymes is a promising, but challenging area of research. Such knowledge will undoubtedly lead to new drugs that better prevent or reverse left ventricular hypertension. (C) 2011 Elsevier Ltd. All rights reserved.
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