PMID- 23713695 OWN - NLM STAT- MEDLINE DCOM- 20140331 LR - 20191112 IS - 2212-3873 (Electronic) IS - 1871-5303 (Linking) VI - 13 IP - 2 DP - 2013 Jun TI - The need for physiologically relevant peroxisome proliferator-activated receptor-gamma (PPAR-gamma) ligands. PG - 175-83 AB - Peroxisome proliferator-activated receptor-gamma (PPAR-gamma) is a nuclear transcription factor which is involved in the differentiation of fibroblasts to adipocytes in vitro. PPAR-gamma also plays a pivotal role in inflammation and macrophage activation. Furthermore, type 2 diabetes mellitus (T2DM), a condition in which an individual's ability to respond to insulin is lowered, is treated by drugs called thiazolidinediones (TZDs) that are known to activated PPAR-gamma, thus augmenting insulin signaling and glucose uptake by adipose tissue. Unfortunately, these otherwise effective drugs are responsible for side effects such as obesity and cardiovascular diseases. The ligand-binding ability of PPAR-gamma is different from other nuclear receptors since it can bind to a wide variety of ligands. Although a number of compounds have been shown to activate PPAR-gamma, knowledge of its endogenous ligands and their physiological functions is lacking. The known ligands were either ambiguous or found to produce ill effects in vivo. In this review we discuss the structure and functions of PPAR-gamma, ligands discovered so far, and focus on the importance of identification of physiologically relevant endogenous ligands. FAU - Subramani, Parasuraman Aiya AU - Subramani PA AD - Department of Zoology, Yogi Vemana University, Kadapa - 516003, AP. India. FAU - Reddy, Madhava C AU - Reddy MC FAU - Narala, Venkata R AU - Narala VR LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - United Arab Emirates TA - Endocr Metab Immune Disord Drug Targets JT - Endocrine, metabolic & immune disorders drug targets JID - 101269157 RN - 0 (Ligands) RN - 0 (Peroxisome Proliferator-Activated Receptors) SB - IM MH - Adipocytes/physiology MH - Animals MH - Disease/genetics MH - Drug Discovery MH - Health Services Needs and Demand MH - Humans MH - Immune System/physiology MH - Ligands MH - Peroxisome Proliferator-Activated Receptors/*agonists/chemistry/physiology MH - Protein Conformation EDAT- 2013/05/30 06:00 MHDA- 2014/04/01 06:00 CRDT- 2013/05/30 06:00 PHST- 2013/02/26 00:00 [received] PHST- 2013/04/22 00:00 [revised] PHST- 2013/04/26 00:00 [accepted] PHST- 2013/05/30 06:00 [entrez] PHST- 2013/05/30 06:00 [pubmed] PHST- 2014/04/01 06:00 [medline] AID - CDTIEMD-EPUB-20130524-1 [pii] AID - 10.2174/18715303113139990003 [doi] PST - ppublish SO - Endocr Metab Immune Disord Drug Targets. 2013 Jun;13(2):175-83. doi: 10.2174/18715303113139990003.