Abstract
Brain-derived neurotrophic factor (BDNF) regulates neuronal development and function. However, it has been difficult to discern its role in the adult brain in influencing complex behavior. Here, we use a recently developed inducible knockout system to show that deleting BDNF in broad forebrain regions of adult mice impairs hippocampal-dependent learning and long-term potentiation. We use the inducible nature of this system to show that the loss of BDNF during earlier stages of development causes hyperactivity and more pronounced hippocampal-dependent learning deficits. We also demonstrate that the loss of forebrain BDNF attenuates the actions of desipramine, an antidepressant, in the forced swim test, suggesting the involvement of BDNF in antidepressant efficacy. These results establish roles for BDNF in the adult, and demonstrate the strength of this inducible knockout system in studying gene function in the adult brain.
MeSH Terms
Animals
Antidepressive Agents, Tricyclic/metabolism
Brain-Derived Neurotrophic Factor/genetics,metabolism
Desipramine/metabolism
Electrophysiology
Hippocampus/cytology,metabolism
In Situ Hybridization
Learning/physiology
Mice
Mice, Knockout
Motor Activity/physiology
Chemicals
Antidepressive Agents, Tricyclic
Brain-Derived Neurotrophic Factor
Desipramine
Authors & Affiliations
10 authors, click to expand affiliations / ORCID
Monteggia Lisa M
Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX 75390-9070, USA. lisa.monteggia@utsouthwestern.edu
Barrot Michel
Powell Craig M
Berton Olivier
Galanis Victor
Gemelli Terry
Meuth Sven
Nagy Andreas
Greene Robert W
Nestler Eric J
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