PPAR-gamma decreases endometrial stromal cell transcription and translation of RANTES in vitro

The Journal of Clinical Endocrinology and Metabolism
Elizabeth A PrittsRobert N Taylor

Abstract

An important step in the monthly turnover of the endometrial lining during the menstrual cycle is the cyclical recruitment and activation of inflammatory cells. Regulated Upon Activation Normal T Cell Expressed and Secreted (RANTES) has been shown to mediate inflammatory cell chemotaxis. This study investigated the effect of PPAR-gamma ligands upon transcription and translation of RANTES in human endometrial stromal cells. First, the expression of endogenous PPAR-gamma was confirmed in endometrial stromal cells. The human RANTES promoter was searched to identify likely PPAR response elements (PPREs), in which three putative sites were found. The effect of PPAR-gamma ligands upon RANTES promoter activity and protein production was analyzed. In cells transfected with RANTES promoter vectors containing 958 bp and 3 PPREs, the addition of PPAR-gamma ligands inhibited promoter activity by 60% (P < 0.01) and 48% (P < 0.02), respectively. Truncation of the gene promoter to delete all putative PPREs abrogated the ligand-induced inhibition. Stromal cells showed a 40% decrease in RANTES protein secretion when treated with a PPAR-gamma ligand (P < 0.01). The use of PPAR-gamma ligands to reduce chemokine production and inflammation may be ...Continue Reading

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Sep 23, 2008·Human Reproduction Update·C B TempferB C J M Fauser
Nov 26, 2010·Human Reproduction Update·Pamela Stratton, Karen J Berkley
Jul 31, 2009·Gynecologic and Obstetric Investigation·Molly B MoravekDan I Lebovic
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May 20, 2015·Clinical Medicine Insights. Oncology·Ping RenMing Jiang
May 17, 2007·The Journal of Clinical Endocrinology and Metabolism·Yuri TakemuraYuji Taketani

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