PMID- 24746813 OWN - NLM STAT- MEDLINE DCOM- 20150105 LR - 20231213 IS - 2211-1247 (Electronic) VI - 7 IP - 3 DP - 2014 May 8 TI - proBDNF negatively regulates neuronal remodeling, synaptic transmission, and synaptic plasticity in hippocampus. PG - 796-806 LID - S2211-1247(14)00237-X [pii] LID - 10.1016/j.celrep.2014.03.040 [doi] AB - Experience-dependent plasticity shapes postnatal development of neural circuits, but the mechanisms that refine dendritic arbors, remodel spines, and impair synaptic activity are poorly understood. Mature brain-derived neurotrophic factor (BDNF) modulates neuronal morphology and synaptic plasticity, including long-term potentiation (LTP) via TrkB activation. BDNF is initially translated as proBDNF, which binds p75(NTR). In vitro, recombinant proBDNF modulates neuronal structure and alters hippocampal long-term plasticity, but the actions of endogenously expressed proBDNF are unclear. Therefore, we generated a cleavage-resistant probdnf knockin mouse. Our results demonstrate that proBDNF negatively regulates hippocampal dendritic complexity and spine density through p75(NTR). Hippocampal slices from probdnf mice exhibit depressed synaptic transmission, impaired LTP, and enhanced long-term depression (LTD) in area CA1. These results suggest that proBDNF acts in vivo as a biologically active factor that regulates hippocampal structure, synaptic transmission, and plasticity, effects that are distinct from those of mature BDNF. CI - Copyright (c) 2014 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Yang, Jianmin AU - Yang J AD - Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA. FAU - Harte-Hargrove, Lauren C AU - Harte-Hargrove LC AD - The Nathan Kline Institute, Orangeburg, NY 10962, USA. FAU - Siao, Chia-Jen AU - Siao CJ AD - Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA. FAU - Marinic, Tina AU - Marinic T AD - Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA. FAU - Clarke, Roshelle AU - Clarke R AD - Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA. FAU - Ma, Qian AU - Ma Q AD - Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA. FAU - Jing, Deqiang AU - Jing D AD - Department of Psychiatry, Weill Cornell Medical College, New York, NY 10065, USA. FAU - Lafrancois, John J AU - Lafrancois JJ AD - The Nathan Kline Institute, Orangeburg, NY 10962, USA. FAU - Bath, Kevin G AU - Bath KG AD - Brown University, Providence, RI 02912, USA. FAU - Mark, Willie AU - Mark W AD - Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA. FAU - Ballon, Douglas AU - Ballon D AD - Department of Radiology, Weill Cornell Medical College, New York, NY 10065, USA. FAU - Lee, Francis S AU - Lee FS AD - Department of Psychiatry, Weill Cornell Medical College, New York, NY 10065, USA. FAU - Scharfman, Helen E AU - Scharfman HE AD - The Nathan Kline Institute, Orangeburg, NY 10962, USA; New York University Langone Medical Center, New York, NY 10016, USA. Electronic address: hscharfman@nki.rfmh.org. FAU - Hempstead, Barbara L AU - Hempstead BL AD - Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA. Electronic address: blhempst@med.cornell.edu. LA - eng GR - T32 MH067763/MH/NIMH NIH HHS/United States GR - P01 HD023315/HD/NICHD NIH HHS/United States GR - R01 NS064114/NS/NINDS NIH HHS/United States GR - R01 NS037562/NS/NINDS NIH HHS/United States GR - NS030627/NS/NINDS NIH HHS/United States GR - R01 NS052819/NS/NINDS NIH HHS/United States GR - T32 MH097763/MH/NIMH NIH HHS/United States GR - HD23315/HD/NICHD NIH HHS/United States GR - R01 NS030687/NS/NINDS NIH HHS/United States GR - NS37562/NS/NINDS NIH HHS/United States GR - NS064114/NS/NINDS NIH HHS/United States GR - NS052819/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20140417 PL - United States TA - Cell Rep JT - Cell reports JID - 101573691 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Protein Precursors) RN - 0 (Receptors, Nerve Growth Factor) RN - 0 (Recombinant Fusion Proteins) RN - 0 (Ngfr protein, mouse) RN - EC 2.7.10.1 (Receptor, trkB) SB - IM MH - Alleles MH - Animals MH - Brain-Derived Neurotrophic Factor/chemistry/*genetics/metabolism MH - Cells, Cultured MH - Gene Knock-In Techniques MH - Hippocampus/anatomy & histology/cytology/*metabolism MH - Long-Term Synaptic Depression MH - Mice MH - Neuronal Plasticity/*physiology MH - Protein Binding MH - Protein Precursors/genetics/metabolism MH - Receptor, trkB/metabolism MH - Receptors, Nerve Growth Factor/chemistry/metabolism MH - Recombinant Fusion Proteins/genetics/metabolism MH - Synaptic Transmission/*physiology PMC - PMC4118923 MID - NIHMS580404 EDAT- 2014/04/22 06:00 MHDA- 2015/01/06 06:00 PMCR- 2015/05/08 CRDT- 2014/04/22 06:00 PHST- 2013/08/10 00:00 [received] PHST- 2014/01/30 00:00 [revised] PHST- 2014/03/12 00:00 [accepted] PHST- 2014/04/22 06:00 [entrez] PHST- 2014/04/22 06:00 [pubmed] PHST- 2015/01/06 06:00 [medline] PHST- 2015/05/08 00:00 [pmc-release] AID - S2211-1247(14)00237-X [pii] AID - 10.1016/j.celrep.2014.03.040 [doi] PST - ppublish SO - Cell Rep. 2014 May 8;7(3):796-806. doi: 10.1016/j.celrep.2014.03.040. Epub 2014 Apr 17.