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Age (Dordr). 2008 Dec;30(4):237-43. doi: 10.1007/s11357-008-9062-3. Epub 2008 Jul 20.

Tissue-specific expression of receptor-interacting protein in aging mouse.

Author information

  • 1Biochemistry and Molecular Biology Laboratory, Department of Zoology, Banaras Hindu University, Varanasi, 221005, India.

Abstract

Receptor-interacting protein (RIP) is a well-characterized coregulator for nuclear receptors. Here, we report the expression of RIP as two isoforms with molecular weights of 140 kDa and 137 kDa in liver and kidney, but only as one isoform of 140 kDa in lung, adipose tissue, prostate and testis of mice. The levels of both the isoforms decreased in liver and kidney of old mice compared with adult mice. The expression of RIP140 in kidney was relatively lower in old males than females. In contrast, adipose tissue showed remarkably higher levels of RIP140 in old than adult mice of both sexes. Thus, the expression of RIP varied with the type of tissue, sex and age of mice, suggesting differences in its function as a coregulator.

PMID:
19424847
[PubMed]
PMCID:
PMC2585652
Free PMC Article

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