July 17, 2001 | Evan D. Rosen and Bruce M. Spiegelman
PPARγ is a nuclear receptor that regulates metabolism, differentiation, and cell growth. It is a member of the peroxisome proliferator-activated receptor (PPAR) family, which includes PPARα, PPARγ, and PPARδ. PPARγ is the most studied PPAR isoform and plays a critical role in adipogenesis, insulin sensitivity, type 2 diabetes, atherosclerosis, and cancer. PPARγ exists in two isoforms, PPARγ1 and PPARγ2, with PPARγ2 being fat-selective. PPARγ binds to PPREs in the promoter region of target genes and functions as a transcription factor. It is activated by various ligands, including eicosanoids and synthetic drugs like thiazolidinediones (TZDs), which are used to treat type 2 diabetes. PPARγ is essential for adipocyte differentiation and insulin sensitivity. It also plays a role in atherosclerosis by modulating macrophage function and cholesterol transport. In cancer, PPARγ has been shown to inhibit tumor growth in some cases, but its role in colon cancer is complex. PPARγ is also involved in the regulation of other cancers, including prostate and thyroid cancers. PPARγ is a ligand-activated transcription factor, making it a target for pharmacological intervention. Research on PPARγ has led to the development of selective activators that could provide therapeutic benefits with fewer side effects. PPARγ's role in various diseases highlights its importance as a therapeutic target.PPARγ is a nuclear receptor that regulates metabolism, differentiation, and cell growth. It is a member of the peroxisome proliferator-activated receptor (PPAR) family, which includes PPARα, PPARγ, and PPARδ. PPARγ is the most studied PPAR isoform and plays a critical role in adipogenesis, insulin sensitivity, type 2 diabetes, atherosclerosis, and cancer. PPARγ exists in two isoforms, PPARγ1 and PPARγ2, with PPARγ2 being fat-selective. PPARγ binds to PPREs in the promoter region of target genes and functions as a transcription factor. It is activated by various ligands, including eicosanoids and synthetic drugs like thiazolidinediones (TZDs), which are used to treat type 2 diabetes. PPARγ is essential for adipocyte differentiation and insulin sensitivity. It also plays a role in atherosclerosis by modulating macrophage function and cholesterol transport. In cancer, PPARγ has been shown to inhibit tumor growth in some cases, but its role in colon cancer is complex. PPARγ is also involved in the regulation of other cancers, including prostate and thyroid cancers. PPARγ is a ligand-activated transcription factor, making it a target for pharmacological intervention. Research on PPARγ has led to the development of selective activators that could provide therapeutic benefits with fewer side effects. PPARγ's role in various diseases highlights its importance as a therapeutic target.