PMID- 24991961 OWN - NLM STAT- MEDLINE DCOM- 20140902 LR - 20211021 IS - 1097-4199 (Electronic) IS - 0896-6273 (Print) IS - 0896-6273 (Linking) VI - 83 IP - 1 DP - 2014 Jul 2 TI - Impaired TrkB receptor signaling underlies corticostriatal dysfunction in Huntington's disease. PG - 178-88 LID - S0896-6273(14)00447-4 [pii] LID - 10.1016/j.neuron.2014.05.032 [doi] AB - Huntington's disease (HD) is an autosomal dominant neurodegenerative disorder. The debilitating choreic movements that plague HD patients have been attributed to striatal degeneration induced by the loss of cortically supplied brain-derived neurotrophic factor (BDNF). Here, we show that in mouse models of early symptomatic HD, BDNF delivery to the striatum and its activation of tyrosine-related kinase B (TrkB) receptors were normal. However, in striatal neurons responsible for movement suppression, TrkB receptors failed to properly engage postsynaptic signaling mechanisms controlling the induction of potentiation at corticostriatal synapses. Plasticity was rescued by inhibiting p75 neurotrophin receptor (p75NTR) signaling or its downstream target phosphatase-and-tensin-homolog-deleted-on-chromosome-10 (PTEN). Thus, corticostriatal synaptic dysfunction early in HD is attributable to a correctable defect in the response to BDNF, not its delivery. CI - Copyright (c) 2014 Elsevier Inc. All rights reserved. FAU - Plotkin, Joshua L AU - Plotkin JL AD - Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. FAU - Day, Michelle AU - Day M AD - Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. FAU - Peterson, Jayms D AU - Peterson JD AD - Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. FAU - Xie, Zhong AU - Xie Z AD - Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. FAU - Kress, Geraldine J AU - Kress GJ AD - Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. FAU - Rafalovich, Igor AU - Rafalovich I AD - Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. FAU - Kondapalli, Jyothisri AU - Kondapalli J AD - Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. FAU - Gertler, Tracy S AU - Gertler TS AD - Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. FAU - Flajolet, Marc AU - Flajolet M AD - Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY 10065, USA. FAU - Greengard, Paul AU - Greengard P AD - Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY 10065, USA. FAU - Stavarache, Mihaela AU - Stavarache M AD - Department of Neurological Surgery, Weill Cornell Medical College, New York, NY 10028, USA. FAU - Kaplitt, Michael G AU - Kaplitt MG AD - Department of Neurological Surgery, Weill Cornell Medical College, New York, NY 10028, USA. FAU - Rosinski, Jim AU - Rosinski J AD - CHDI Management/CHDI Foundation, Princeton, NJ 08540, USA. FAU - Chan, C Savio AU - Chan CS AD - Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. FAU - Surmeier, D James AU - Surmeier DJ AD - Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA. Electronic address: j-surmeier@northwestern.edu. LA - eng GR - R01 NS034696/NS/NINDS NIH HHS/United States GR - NS067414/NS/NINDS NIH HHS/United States GR - P50 MH074866/MH/NIMH NIH HHS/United States GR - NS034696/NS/NINDS NIH HHS/United States GR - R01 NS067414/NS/NINDS NIH HHS/United States GR - MH074866/MH/NIMH NIH HHS/United States GR - R37 NS034696/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Neuron JT - Neuron JID - 8809320 RN - EC 2.7.10.1 (Receptor, trkB) SB - IM CIN - Neuron. 2014 Jul 2;83(1):6-8. PMID: 24991950 MH - Animals MH - Cerebral Cortex/pathology/*physiopathology MH - Corpus Striatum/pathology/*physiopathology MH - *Disease Models, Animal MH - Gene Knock-In Techniques MH - Huntington Disease/genetics/pathology/*physiopathology MH - Mice MH - Mice, Inbred C57BL MH - Mice, Transgenic MH - Organ Culture Techniques MH - Receptor, trkB/antagonists & inhibitors/*deficiency/physiology MH - Signal Transduction/*genetics PMC - PMC4131293 MID - NIHMS610266 EDAT- 2014/07/06 06:00 MHDA- 2014/09/03 06:00 PMCR- 2015/07/02 CRDT- 2014/07/04 06:00 PHST- 2014/05/21 00:00 [accepted] PHST- 2014/07/04 06:00 [entrez] PHST- 2014/07/06 06:00 [pubmed] PHST- 2014/09/03 06:00 [medline] PHST- 2015/07/02 00:00 [pmc-release] AID - S0896-6273(14)00447-4 [pii] AID - 10.1016/j.neuron.2014.05.032 [doi] PST - ppublish SO - Neuron. 2014 Jul 2;83(1):178-88. doi: 10.1016/j.neuron.2014.05.032.