PMID- 11992117 OWN - NLM STAT- MEDLINE DCOM- 20020619 LR - 20220331 IS - 1097-6256 (Print) IS - 1097-6256 (Linking) VI - 5 IP - 6 DP - 2002 Jun TI - A rapid switch in sympathetic neurotransmitter release properties mediated by the p75 receptor. PG - 539-45 AB - Cardiac function is modulated by norepinephrine release from innervating sympathetic neurons. These neurons also form excitatory connections onto cardiac myocytes in culture. Here we report that brain-derived neurotrophic factor (BDNF) altered the neurotransmitter release properties of these sympathetic neuron-myocyte connections in rodent cell culture, leading to a rapid shift from excitatory to inhibitory cholinergic transmission in response to neuronal stimulation. Fifteen minutes of BDNF perfusion was sufficient to cause this shift to inhibitory transmission, indicating that BDNF promotes preferential release of acetylcholine in response to neuronal stimulation. We found that p75(-/-) neurons did not release acetylcholine in response to BDNF and that neurons overexpressing p75 showed increased cholinergic transmission, indicating that the actions of BDNF are mediated through the p75 neurotrophin receptor. Our findings indicate that p75 is involved in modulating the release of distinct neurotransmitter pools, resulting in a functional switch between excitatory and inhibitory neurotransmission in individual neurons. FAU - Yang, Bo AU - Yang B AD - Department of Biology, Volen Center for Complex Systems, 415 South St., M/S 008, Brandeis University, Waltham, Massachusetts 02454, USA. FAU - Slonimsky, John D AU - Slonimsky JD FAU - Birren, Susan J AU - Birren SJ LA - eng GR - R01 NS40168/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Nat Neurosci JT - Nature neuroscience JID - 9809671 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neurotransmitter Agents) RN - 0 (Receptor, Nerve Growth Factor) RN - 0 (Receptors, Nerve Growth Factor) RN - N9YNS0M02X (Acetylcholine) SB - IM CIN - Nat Neurosci. 2002 Jun;5(6):503-4. PMID: 12037514 MH - Acetylcholine/metabolism MH - Animals MH - Brain-Derived Neurotrophic Factor/pharmacology MH - Cell Communication/physiology MH - Cells, Cultured MH - Cholinergic Fibers/drug effects/physiology MH - Coculture Techniques MH - Mice MH - Mice, Knockout/genetics MH - Myocardium/cytology MH - Neurons/metabolism/physiology MH - Neurotransmitter Agents/*metabolism MH - Presynaptic Terminals/drug effects MH - Rats MH - Receptor, Nerve Growth Factor MH - Receptors, Nerve Growth Factor/genetics/*physiology MH - Sympathetic Nervous System/cytology/*metabolism MH - Synaptic Transmission/drug effects/physiology MH - Time Factors EDAT- 2002/05/07 10:00 MHDA- 2002/06/20 10:01 CRDT- 2002/05/07 10:00 PHST- 2002/05/07 10:00 [pubmed] PHST- 2002/06/20 10:01 [medline] PHST- 2002/05/07 10:00 [entrez] AID - nn853 [pii] AID - 10.1038/nn0602-853 [doi] PST - ppublish SO - Nat Neurosci. 2002 Jun;5(6):539-45. doi: 10.1038/nn0602-853.