title: Modulation of the transcriptional activity of peroxisome proliferator-activated receptor gamma by protein-protein interactions and post-translational modifications.
abstract: Peroxisome proliferator-activated receptor gamma (PPARγ) belongs to a nuclear receptor superfamily; members of which play key roles in the control of body metabolism principally by acting on adipose tissue. Ligands of PPARγ, such as thiazolidinediones, are widely used in the treatment of metabolic syndromes and type 2 diabetes mellitus (T2DM). Although these drugs have potential benefits in the treatment of T2DM, they also cause unwanted side effects. Thus, understanding the molecular mechanisms governing the transcriptional activity of PPARγ is of prime importance in the development of new selective drugs or drugs with fewer side effects. Recent advancements in molecular biology have made it possible to obtain a deeper understanding of the role of PPARγ in body homeostasis. The transcriptional activity of PPARγ is subject to regulation either by interacting proteins or by modification of the protein itself. New interacting partners of PPARγ with new functions are being unveiled. In addition, post-translational modification by various cellular signals contributes to fine-tuning of the transcriptional activities of PPARγ. In this review, we will summarize recent advancements in our understanding of the post-translational modifications of, and proteins interacting with, PPARγ, both of which affect its transcriptional activities in relation to adipogenesis.
authors.affiliation: Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Korea.
authors.forename: Tae-Hyun
authors.initials: TH
authors.lastname: Kim
authors.forename: Mi-Young
authors.initials: MY
authors.lastname: Kim
authors.forename: Seong-Ho
authors.initials: SH
authors.lastname: Jo
authors.forename: Joo-Man
authors.initials: JM
authors.lastname: Park
authors.forename: Yong-Ho
authors.initials: YH
authors.lastname: Ahn
mesh_terms: D005786:Gene Expression Regulation; D006706:Homeostasis; D008957:Models, Genetic; D047495:PPAR gamma / Q000235:genetics / Q000378:metabolism / Q000502:physiology*; D011499:Protein Processing, Post-Translational; D058207:Sumoylation; D014157:Transcription Factors / Q000378:metabolism / Q000502:physiology; D054875:Ubiquitination
chemical_list: D047495:PPAR gamma; D014157:Transcription Factors
keywords: PPARγ; adipogenesis; coregulator; metabolic syndrome; post-translational modifications; transcriptional activity
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