PMID- 16783370 OWN - NLM STAT- MEDLINE DCOM- 20060905 LR - 20181201 IS - 1097-6256 (Print) IS - 1546-1726 (Electronic) IS - 1097-6256 (Linking) VI - 9 IP - 7 DP - 2006 Jul TI - Amygdala BDNF signaling is required for consolidation but not encoding of extinction. PG - 870-2 AB - Brain-derived neurotrophic factor (BDNF) acting through the tyrosine kinase B receptor (TrkB) is thought to be a critical mediator of learning. As there are no available selective antagonists of TrkB, we used a lentivirus encoding a dominant-negative TrkB (TrkB.t1) to antagonize BDNF signaling during extinction of conditioned fear. Whereas TrkB.t1-infected rats showed normal within-session extinction, their retention of extinction was impaired, suggesting that amygdala TrkB activation is required for the consolidation of stable extinction memories. FAU - Chhatwal, Jasmeer P AU - Chhatwal JP AD - Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 1639 Pierce Drive, Suite 4000, Atlanta, Georgia 30322, USA. FAU - Stanek-Rattiner, Lisa AU - Stanek-Rattiner L FAU - Davis, Michael AU - Davis M FAU - Ressler, Kerry J AU - Ressler KJ LA - eng GR - R01 MH047840/MH/NIMH NIH HHS/United States GR - K01 MH069884-02/MH/NIMH NIH HHS/United States GR - T32 GM008169/GM/NIGMS NIH HHS/United States GR - MH069884/MH/NIMH NIH HHS/United States GR - MH47840/MH/NIMH NIH HHS/United States GR - R37 MH047840/MH/NIMH NIH HHS/United States GR - P51 RR000165/RR/NCRR NIH HHS/United States GR - K01 MH069884-01/MH/NIMH NIH HHS/United States GR - R01 DA019624-01A2/DA/NIDA NIH HHS/United States GR - K01 MH069884-03/MH/NIMH NIH HHS/United States GR - K01 MH069884/MH/NIMH NIH HHS/United States GR - P51 RR000165-460189/RR/NCRR NIH HHS/United States GR - P51RR000165/RR/NCRR NIH HHS/United States GR - R01 DA019624/DA/NIDA NIH HHS/United States GR - P51 RR000165-450216/RR/NCRR NIH HHS/United States GR - F30 MH070218/MH/NIMH NIH HHS/United States GR - MH070218/MH/NIMH NIH HHS/United States GR - P51 RR000165-457288/RR/NCRR NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20060618 PL - United States TA - Nat Neurosci JT - Nature neuroscience JID - 9809671 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cannabinoid Receptor Antagonists) RN - 0 (Piperidines) RN - 0 (Pyrazoles) RN - 0 (RNA, Messenger) RN - 147336-22-9 (Green Fluorescent Proteins) RN - EC 2.7.10.1 (Receptor, trkB) RN - RML78EN3XE (Rimonabant) SB - IM MH - Amygdala/*metabolism MH - Animals MH - Behavior, Animal MH - Brain-Derived Neurotrophic Factor/genetics/*metabolism MH - Cannabinoid Receptor Antagonists MH - Conditioning, Classical/drug effects/*physiology MH - Extinction, Psychological/physiology MH - Gene Expression/drug effects/physiology MH - Genetic Vectors/physiology MH - Green Fluorescent Proteins/biosynthesis MH - Immunohistochemistry/methods MH - Lentivirus/physiology MH - Male MH - Piperidines/pharmacology MH - Pyrazoles/pharmacology MH - RNA, Messenger/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Receptor, trkB/physiology MH - Reflex, Startle/drug effects/physiology MH - Rimonabant MH - Signal Transduction/drug effects/*physiology MH - Time Factors PMC - PMC2562628 MID - NIHMS55890 EDAT- 2006/06/20 09:00 MHDA- 2006/09/06 09:00 PMCR- 2008/10/07 CRDT- 2006/06/20 09:00 PHST- 2006/04/28 00:00 [received] PHST- 2006/05/18 00:00 [accepted] PHST- 2006/06/20 09:00 [pubmed] PHST- 2006/09/06 09:00 [medline] PHST- 2006/06/20 09:00 [entrez] PHST- 2008/10/07 00:00 [pmc-release] AID - nn1718 [pii] AID - 10.1038/nn1718 [doi] PST - ppublish SO - Nat Neurosci. 2006 Jul;9(7):870-2. doi: 10.1038/nn1718. Epub 2006 Jun 18.