PMID- 19294650 OWN - NLM STAT- MEDLINE DCOM- 20091214 LR - 20240312 IS - 1098-1063 (Electronic) IS - 1050-9631 (Print) IS - 1050-9631 (Linking) VI - 19 IP - 10 DP - 2009 Oct TI - Running exercise-induced up-regulation of hippocampal brain-derived neurotrophic factor is CREB-dependent. PG - 962-72 LID - 10.1002/hipo.20579 [doi] AB - The past decade has witnessed burgeoning evidence that antidepressant medications and physical exercise increase the expression of hippocampal brain-derived neurotrophic factor (BDNF). This phenomenon has gained widespread appeal, because BDNF is one of the first macromolecules observed to play a central role not only in the treatment of mood disorders, but also in neuronal survival-, growth-, and plasticity-related signaling cascades. Thus, it has become critical to understand how BDNF synthesis is regulated. Much evidence exists that changes in BDNF expression result from the activation/phosphorylation of the transcription factor, cAMP-response-element binding protein (CREB) following the administration of antidepressant medications. Utilizing a mouse model genetically engineered with an inducible CREB repressor, our current study provides evidence that increases in BDNF expression and cellular survival signaling resulting from physical exercise are also dependent upon activation of this central transcription factor. The transcription and expression of hippocampal BDNF, as well as the activation of Akt, a key survival signaling molecule, were measured following acute exercise, and also following short-term treatment with the norepinephrine reuptake inhibitor, reboxetine. We found that both interventions led to a marked increase in hippocampal BDNF mRNA, BDNF protein, and Akt phosphorylation (as well as CREB phosphorylation) in wild-type mice. As expected, activation of the CREB repressor in mutant mice sharply decreased CREB phosphorylation. In addition, all measures noted above remained at baseline levels when mutant mice exercised or received reboxetine. Increases in BDNF and phospho-Akt were also prevented when mutant mice received a combination of exercise and antidepressant treatment. The results are discussed in the context of what is currently known about BDNF signaling. CI - Copyright 2008 Wiley-Liss, Inc. FAU - Chen, Michael J AU - Chen MJ AD - Department of Biological Sciences, California State University, 5151 State University Dr., Los Angeles, CA 90032, USA. mchen@calstatela.edu FAU - Russo-Neustadt, Amelia A AU - Russo-Neustadt AA LA - eng GR - R01 MH059776/MH/NIMH NIH HHS/United States GR - R01 MH059776-11/MH/NIMH NIH HHS/United States GR - MH-59776/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - United States TA - Hippocampus JT - Hippocampus JID - 9108167 RN - 0 (Adrenergic Uptake Inhibitors) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Creb1 protein, mouse) RN - 0 (Cyclic AMP Response Element-Binding Protein) RN - 0 (Morpholines) RN - 0 (RNA, Messenger) RN - 947S0YZ36I (Reboxetine) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) SB - IM MH - Adrenergic Uptake Inhibitors/pharmacology MH - Animals MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Cell Survival/physiology MH - Cyclic AMP Response Element-Binding Protein/*metabolism MH - Hippocampus/drug effects/*metabolism MH - Male MH - Mice MH - Mice, Inbred Strains MH - Mice, Transgenic MH - Morpholines/pharmacology MH - Phosphorylation MH - Physical Conditioning, Animal/*physiology MH - Proto-Oncogene Proteins c-akt/metabolism MH - RNA, Messenger/metabolism MH - Random Allocation MH - Reboxetine MH - Running/*physiology MH - Up-Regulation/drug effects/physiology PMC - PMC2756465 MID - NIHMS97143 EDAT- 2009/03/19 09:00 MHDA- 2009/12/16 06:00 PMCR- 2010/10/01 CRDT- 2009/03/19 09:00 PHST- 2009/03/19 09:00 [entrez] PHST- 2009/03/19 09:00 [pubmed] PHST- 2009/12/16 06:00 [medline] PHST- 2010/10/01 00:00 [pmc-release] AID - 10.1002/hipo.20579 [doi] PST - ppublish SO - Hippocampus. 2009 Oct;19(10):962-72. doi: 10.1002/hipo.20579.