Abstract:
:The nuclear receptor peroxisome proliferator-activated receptor gamma regulates adipose differentiation and systemic insulin signaling via ligand-dependent transcriptional activation of target genes. However, the identities of the biologically relevant target genes are largely unknown. Here we describe the isolation and characterization of a novel target gene induced by PPARgamma ligands, termed PGAR (for PPARgamma angiopoietin related), which encodes a novel member of the angiopoietin family of secreted proteins. The transcriptional induction of PGAR follows a rapid time course typical of immediate-early genes and occurs in the absence of protein synthesis. The expression of PGAR is predominantly localized to adipose tissues and placenta and is consistently elevated in genetic models of obesity. Hormone-dependent adipocyte differentiation coincides with a dramatic early induction of the PGAR transcript. Alterations in nutrition and leptin administration are found to modulate the PGAR expression in vivo. Taken together, these data suggest a possible role for PGAR in the regulation of systemic lipid metabolism or glucose homeostasis.
journal_name
Mol Cell Bioljournal_title
Molecular and cellular biologyauthors
Yoon JC,Chickering TW,Rosen ED,Dussault B,Qin Y,Soukas A,Friedman JM,Holmes WE,Spiegelman BMdoi
10.1128/mcb.20.14.5343-5349.2000subject
Has Abstractpub_date
2000-07-01 00:00:00pages
5343-9issue
14eissn
0270-7306issn
1098-5549journal_volume
20pub_type
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