کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2197865 1550985 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non-classical actions of the mineralocorticoid receptor: Misuse of EGF receptors?
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
Non-classical actions of the mineralocorticoid receptor: Misuse of EGF receptors?
چکیده انگلیسی

The mineralocorticoid receptor (MR) plays a key role in cardiovascular and renal injury. The underlying mechanisms seem to involve the epidermal growth factor receptor (EGFR) for the development of fibrosis and vascular dysfunction. Both enhanced EGFR transactivation by activated MR as well as upregulation of EGFR expression by aldosterone-bound MR have been described. While the former seems to be mediated by the tyrosine kinase cSrc, reporter gene assays and chromatin immunoprecipitation data indicate that the latter is caused by an interaction between MR and the EGFR promoter. Pharmacological inhibition of EGFR function prevents some of MR's pathological actions in cell culture systems, like vascular smooth muscle cells. Thus, transactivation as well as enhanced expression of EGFR may be an important switch for the pathophysiological actions in the reno-cardiovascular continuum. Furthermore, EGFR signaling may serve as a negative feedback loop to limit sodium retention. Overall, MR's “misuse” of the EGFR is one possible explanation for the pathophysiological effects of aldosterone, making the EGFR a potential target for therapeutical interventions against reno-cardiovascular remodelling.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular and Cellular Endocrinology - Volume 277, Issues 1–2, 15 October 2007, Pages 6–12
نویسندگان
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