PMID- 23055503 OWN - NLM STAT- MEDLINE DCOM- 20130103 LR - 20211021 IS - 1529-2401 (Electronic) IS - 0270-6474 (Print) IS - 0270-6474 (Linking) VI - 32 IP - 41 DP - 2012 Oct 10 TI - BDNF promotes differentiation and maturation of adult-born neurons through GABAergic transmission. PG - 14318-30 LID - 10.1523/JNEUROSCI.0709-12.2012 [doi] AB - Brain-derived neurotrophic factor (BDNF) has been implicated in regulating adult neurogenesis in the subgranular zone (SGZ) of the dentate gyrus; however, the mechanism underlying this regulation remains unclear. In this study, we found that Bdnf mRNA localized to distal dendrites of dentate gyrus granule cells isolated from wild-type (WT) mice, but not from Bdnf(klox/klox) mice where the long 3' untranslated region (UTR) of Bdnf mRNA is truncated. KCl-induced membrane depolarization stimulated release of dendritic BDNF translated from long 3' UTR Bdnf mRNA in cultured hippocampal neurons, but not from short 3' UTR Bdnf mRNA. Bdnf(klox/klox) mice exhibited reduced expression of glutamic acid decarboxylase 65 (a GABA synthase), increased proliferation of progenitor cells, and impaired differentiation and maturation of newborn neurons in the SGZ. These deficits in adult neurogenesis were rescued with administration of phenobarbital, an enhancer of GABA(A) receptor activity. Furthermore, we observed similar neurogenesis deficits in mice where the receptor for BDNF, TrkB, was selectively abolished in parvalbumin (PV)-expressing GABAergic interneurons. Thus, our data suggest that locally synthesized BDNF in dendrites of granule cells promotes differentiation and maturation of progenitor cells in the SGZ by enhancing GABA release, at least in part, from PV-expressing GABAergic interneurons. FAU - Waterhouse, Emily G AU - Waterhouse EG AD - Department of Pharmacology and Physiology, Georgetown University Medical Center, Washington, DC 20057, USA. FAU - An, Juan Ji AU - An JJ FAU - Orefice, Lauren L AU - Orefice LL FAU - Baydyuk, Maryna AU - Baydyuk M FAU - Liao, Guey-Ying AU - Liao GY FAU - Zheng, Kang AU - Zheng K FAU - Lu, Bai AU - Lu B FAU - Xu, Baoji AU - Xu B LA - eng GR - R01 NS050596/NS/NINDS NIH HHS/United States GR - R01 NS073930/NS/NINDS NIH HHS/United States GR - F30 DK084717/DK/NIDDK NIH HHS/United States GR - F31 NS074840/NS/NINDS NIH HHS/United States GR - R56 NS050596/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - United States TA - J Neurosci JT - The Journal of neuroscience : the official journal of the Society for Neuroscience JID - 8102140 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 56-12-2 (gamma-Aminobutyric Acid) SB - IM MH - Age Factors MH - Animals MH - Brain-Derived Neurotrophic Factor/metabolism/*physiology MH - Cell Differentiation/genetics MH - Cells, Cultured MH - Female MH - Hippocampus/cytology/metabolism MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Mice, Transgenic MH - Neural Stem Cells/*metabolism MH - Neurogenesis/*genetics/physiology MH - Rats MH - Rats, Sprague-Dawley MH - Synaptic Transmission/*genetics/physiology MH - Up-Regulation/*genetics MH - gamma-Aminobutyric Acid/*biosynthesis/metabolism PMC - PMC3519245 MID - NIHMS414409 EDAT- 2012/10/12 06:00 MHDA- 2013/01/04 06:00 PMCR- 2013/04/10 CRDT- 2012/10/12 06:00 PHST- 2012/10/12 06:00 [entrez] PHST- 2012/10/12 06:00 [pubmed] PHST- 2013/01/04 06:00 [medline] PHST- 2013/04/10 00:00 [pmc-release] AID - 32/41/14318 [pii] AID - 3803646 [pii] AID - 10.1523/JNEUROSCI.0709-12.2012 [doi] PST - ppublish SO - J Neurosci. 2012 Oct 10;32(41):14318-30. doi: 10.1523/JNEUROSCI.0709-12.2012.