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Biochem Biophys Res Commun. 2010 May 28;396(2):219-23. doi: 10.1016/j.bbrc.2010.04.067. Epub 2010 Apr 14.

Role of AP-1 and RE-1 binding sites in matrix metalloproteinase-2 transcriptional regulation in skeletal muscle atrophy.

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1
Department of Veterans Affairs, San Francisco Veterans Affairs Medical Center, 4150 Clement St, San Francisco, CA 94121, USA.

Abstract

Previous work has suggested that an extracellular matrix degrading enzyme-matrix metalloproteinase-2 (MMP-2) plays an important role in the development of muscle atrophy. However, the transcriptional regulation mechanism of MMP-2 in skeletal muscle atrophy remains largely unknown. Using transgenic MMP-2 promoter reporter mice, we have demonstrated that AP-1 and RE-1 binding sites in the MMP-2 promoter region, coupled with increased binding of Fra-1, Fra-2 and AP-2, play a critical role in MMP-2 transcriptional regulation in muscle atrophy. Novel information gained from this study has improved our understanding of in vivo transcriptional regulation of MMP-2 in skeletal muscle atrophy.

PMID:
20398633
DOI:
10.1016/j.bbrc.2010.04.067
[Indexed for MEDLINE]
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