PMID- 23373812 OWN - NLM STAT- MEDLINE DCOM- 20130620 LR - 20220408 IS - 1471-4159 (Electronic) IS - 0022-3042 (Print) IS - 0022-3042 (Linking) VI - 125 IP - 3 DP - 2013 May TI - Neuroprotective effects of PPAR-gamma agonist rosiglitazone in N171-82Q mouse model of Huntington's disease. PG - 410-9 LID - 10.1111/jnc.12190 [doi] AB - Huntington's disease (HD) is a devastating genetic neurodegenerative disease caused by CAG trinucleotide expansion in the exon-1 region of the huntingtin gene. Currently, no cure is available. It is becoming increasingly apparent that mutant Huntingtin (HTT) impairs metabolic homeostasis and causes transcriptional dysregulation. The peroxisome proliferator-activated receptor gamma (PPAR-gamma) is a transcriptional factor that plays a key role in regulating genes involved in energy metabolism; recent studies demonstrated that PPAR-gamma activation prevented mitochondrial depolarization in cells expressing mutant HTT and attenuated neurodegeneration in various models of neurodegenerative diseases. PPAR-gamma-coactivator 1alpha (PGC-1 alpha) transcription activity is also impaired by mutant HTT. We now report that the PPAR-gamma agonist, rosiglitazone (RSG), significantly attenuated mutant HTT-induced toxicity in striatal cells and that the protective effect of RSG is mediated by activation of PPAR-gamma. Moreover, chronic administration of RSG (10 mg/kg/day, i.p) significantly improved motor function and attenuated hyperglycemia in N171-82Q HD mice. RSG administration rescued brain derived neurotrophic factor(BDNF) deficiency in the cerebral cortex, and prevented loss of orexin-A-immunopositive neurons in the hypothalamus of N171-82Q HD mice. RSG also prevented PGC-1alpha reduction and increased Sirt6 protein levels in HD mouse brain. Our results suggest that modifying the PPAR-gamma pathway plays a beneficial role in rescuing motor function as well as glucose metabolic abnormalities in HD. CI - (c) 2013 International Society for Neurochemistry. FAU - Jin, Jing AU - Jin J AD - Division of Neurobiology, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. FAU - Albertz, Jennifer AU - Albertz J FAU - Guo, Zhihong AU - Guo Z FAU - Peng, Qi AU - Peng Q FAU - Rudow, Gay AU - Rudow G FAU - Troncoso, Juan C AU - Troncoso JC FAU - Ross, Christopher A AU - Ross CA FAU - Duan, Wenzhen AU - Duan W LA - eng GR - P30 DK079637/DK/NIDDK NIH HHS/United States GR - R21 NS072344/NS/NINDS NIH HHS/United States GR - NS072344/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20130305 PL - England TA - J Neurochem JT - Journal of neurochemistry JID - 2985190R RN - 0 (2-chloro-5-nitrobenzanilide) RN - 0 (Anilides) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Glutamates) RN - 0 (HCRT protein, human) RN - 0 (HTT protein, human) RN - 0 (Huntingtin Protein) RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (Nerve Tissue Proteins) RN - 0 (Neuropeptides) RN - 0 (Neuroprotective Agents) RN - 0 (Orexins) RN - 0 (PPAR gamma) RN - 0 (Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha) RN - 0 (Ppargc1a protein, mouse) RN - 0 (RNA, Messenger) RN - 0 (Thiazolidinediones) RN - 0 (Trans-Activators) RN - 0 (Transcription Factors) RN - 05V02F2KDG (Rosiglitazone) RN - 8L70Q75FXE (Adenosine Triphosphate) RN - EC 1.1.1.27 (L-Lactate Dehydrogenase) RN - EC 3.5.1.- (SIRT6 protein, human) RN - EC 3.5.1.- (Sirtuins) SB - IM MH - Adenosine Triphosphate/metabolism MH - Anilides/pharmacology MH - Animals MH - Brain/drug effects/enzymology/pathology MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cell Line MH - Disease Models, Animal MH - Gene Expression Regulation/drug effects/genetics MH - Glutamates/genetics MH - Humans MH - Huntingtin Protein MH - Huntington Disease/complications/*drug therapy/genetics/pathology MH - Hyperglycemia/drug therapy/etiology MH - Intracellular Signaling Peptides and Proteins/metabolism MH - L-Lactate Dehydrogenase/metabolism MH - Male MH - Mice MH - Mice, Transgenic MH - Movement Disorders/drug therapy/etiology MH - Nerve Tissue Proteins/genetics MH - Neurons/*drug effects/metabolism MH - Neuropeptides/metabolism MH - Neuroprotective Agents/pharmacology/*therapeutic use MH - Orexins MH - PPAR gamma/antagonists & inhibitors MH - Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha MH - RNA, Messenger/metabolism MH - Rosiglitazone MH - Sirtuins/metabolism MH - Thiazolidinediones/pharmacology/*therapeutic use MH - Trans-Activators/genetics/metabolism MH - Transcription Factors MH - Transfection MH - Trinucleotide Repeat Expansion/genetics PMC - PMC3642978 MID - NIHMS443117 COIS- All authors have no conflict of interest to declare. EDAT- 2013/02/05 06:00 MHDA- 2013/06/21 06:00 PMCR- 2014/05/01 CRDT- 2013/02/05 06:00 PHST- 2012/10/23 00:00 [received] PHST- 2013/01/30 00:00 [revised] PHST- 2013/01/30 00:00 [accepted] PHST- 2013/02/05 06:00 [entrez] PHST- 2013/02/05 06:00 [pubmed] PHST- 2013/06/21 06:00 [medline] PHST- 2014/05/01 00:00 [pmc-release] AID - 10.1111/jnc.12190 [doi] PST - ppublish SO - J Neurochem. 2013 May;125(3):410-9. doi: 10.1111/jnc.12190. Epub 2013 Mar 5.