PMID- 10479698 OWN - NLM STAT- MEDLINE DCOM- 19991004 LR - 20191023 IS - 1529-2401 (Electronic) IS - 0270-6474 (Print) IS - 0270-6474 (Linking) VI - 19 IP - 18 DP - 1999 Sep 15 TI - Relative contribution of endogenous neurotrophins in hippocampal long-term potentiation. PG - 7983-90 AB - Recent evidence has shown that brain-derived neurotrophic factor (BDNF) is involved in hippocampal long-term potentiation (LTP). Because the reagents used in acute experiments react not only with BDNF but also with neurotrophin-4/5 (NT4/5) and neurotrophin-3 (NT3), we examined the involvement of these neurotrophins in LTP using two highly specific, function-blocking monoclonal antibodies against BDNF and NT3, as well as a TrkB-IgG fusion protein. Our results show that NT3 antibodies did not have any effects on LTP. However, both TrkB-IgG fusion proteins and BDNF antibody similarly reduced LTP, suggesting that only BDNF but no other ligands of the TrkB-receptor are likely to be involved in LTP induction. The reduction in LTP depended on the inducing stimuli and was only observed with theta-burst stimulation (TBS) but not with tetanic stimulation. We further observed that LTP was only reduced if BDNF was blocked before and during TBS stimulation, and BDNF antibodies did not affect early or late stages of LTP if they were applied 10, 30, or 60 min after TBS stimulation. These results point toward a specific and unique role of endogenous BDNF but not of other neurotrophins in the process of TBS-induced hippocampal LTP. Additionally, they suggest that endogenous BDNF is required for a limited time period only shortly before or around LTP induction but not during the whole process of LTP. FAU - Chen, G AU - Chen G AD - Max-Planck-Institut fur Neurobiologie, D-82152 Munchen-Martinsried, Germany. FAU - Kolbeck, R AU - Kolbeck R FAU - Barde, Y A AU - Barde YA FAU - Bonhoeffer, T AU - Bonhoeffer T FAU - Kossel, A AU - Kossel A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Neurosci JT - The Journal of neuroscience : the official journal of the Society for Neuroscience JID - 8102140 RN - 0 (Antibodies, Monoclonal) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Immunoglobulin G) RN - 0 (Nerve Growth Factors) RN - 0 (Neurotrophin 3) RN - 0 (Receptor, Ciliary Neurotrophic Factor) RN - 0 (Receptors, Nerve Growth Factor) RN - 0 (Recombinant Fusion Proteins) RN - 145172-44-7 (neurotrophin 5) RN - EC 2.7.10.1 (Receptor Protein-Tyrosine Kinases) RN - P658DCA9XD (neurotrophin 4) SB - IM MH - Animals MH - Antibodies, Monoclonal/pharmacology MH - Brain-Derived Neurotrophic Factor/antagonists & inhibitors/*physiology MH - Electric Stimulation MH - Excitatory Postsynaptic Potentials MH - Hippocampus/*physiology MH - Immunoglobulin G MH - In Vitro Techniques MH - Long-Term Potentiation/*physiology MH - Male MH - Mice MH - Nerve Growth Factors/antagonists & inhibitors/*physiology MH - Neuronal Plasticity MH - Neurotrophin 3 MH - Receptor Protein-Tyrosine Kinases/physiology MH - Receptor, Ciliary Neurotrophic Factor MH - Receptors, Nerve Growth Factor/physiology MH - Recombinant Fusion Proteins/metabolism MH - Synaptic Transmission/*physiology PMC - PMC6782442 EDAT- 1999/09/10 00:00 MHDA- 1999/09/10 00:01 PMCR- 2000/03/15 CRDT- 1999/09/10 00:00 PHST- 1999/09/10 00:00 [pubmed] PHST- 1999/09/10 00:01 [medline] PHST- 1999/09/10 00:00 [entrez] PHST- 2000/03/15 00:00 [pmc-release] AID - 3417 [pii] AID - 10.1523/JNEUROSCI.19-18-07983.1999 [doi] PST - ppublish SO - J Neurosci. 1999 Sep 15;19(18):7983-90. doi: 10.1523/JNEUROSCI.19-18-07983.1999.