期刊
JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY
卷 153, 期 -, 页码 27-34出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsbmb.2015.03.009
关键词
Glucocorticoids; Glucocorticoid receptor; Mineralocorticoid receptor; Cardiomyocytes; Transgenic mice
资金
- Intramural Research Program of the NIH, NIEHS
Heart failure is one of the leading causes of death in the Western world. Glucocorticoids are primary stress hormones that regulate a vast array of biological processes, and synthetic derivatives of these steroids have been mainstays in the clinic for the last half century. Abnormal levels of glucocorticoids are known to negatively impact the cardiovascular system; however, surprisingly little is known about the direct role of glucocorticoid signaling in the heart. The actions of glucocorticoids are mediated classically by the glucocorticoid receptor (GR). In certain cells, such as cardiomyocytes, glucocorticoid occupancy and activation of the mineralocorticoid receptor (MR) may also contribute to the observed response. Recently, there has been a surge of reports investigating the in vivo function of glucocorticoid signaling in the heart using transgenic mice that specifically target GR or MR in cardiomyocytes. Results from these studies suggest that GR signaling in cardiomyocytes is critical for the normal development and function of the heart. In contrast, MR signaling in cardiomyocytes participates in the development and progression of cardiac disease. In the following review, we discuss these genetic mouse models and the new insights they are providing into the direct role cardiomyocyte glucocorticoid signaling plays in heart physiology and pathophysiology. This article is part of a Special Issue entitled 'Steroid Perspectives'. Published by Elsevier Ltd.
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