PMID- 29097744 OWN - NLM STAT- MEDLINE DCOM- 20190715 LR - 20190715 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 7 IP - 1 DP - 2017 Nov 2 TI - Alleviative effects of fluoxetine on depressive-like behaviors by epigenetic regulation of BDNF gene transcription in mouse model of post-stroke depression. PG - 14926 LID - 10.1038/s41598-017-13929-5 [doi] LID - 14926 AB - Fluoxetine, one of the selective serotonin reuptake inhibitor (SSRI) antidepressants, has been thought to be effective for treating post-stroke depression (PSD). Recent work has shown that fluoxetine may exert an antidepressive effect through increasing the level of brain-derived neurotrophic factor (BDNF), but the underlying mechanism still remains unclear. In the present study, we successfully established the PSD model using male C57BL/6 J mice by photothrombosis of the left anterior cortex combined with isolatied-housing conditions. In the process, we confirmed that fluoxetine could improve the depression-like behaviors of PSD mice and upregulate the expression of BDNF in the hippocampus. However, depletion of BDNF by transfecting lentivirus-derived shBDNF in hippocampus suppressed the effect of fluoxetine. Furthermore, we demonstrated the epigenetic mechanisms involved in regulation of BDNF expression induced by fluoxetine. We found a statistically significant increase in DNA methylation at specific CpG sites (loci 2) of Bdnf promoter IV in the hippocampus of PSD mice. We also found that fluoxetine treatment could disassociate the MeCP2-CREB-Bdnf promoter IV complex via phosphorylation of MeCP2 at Ser421 by Protein Kinase A (PKA). Our research highlighted the importance of fluoxetine in regulating BDNF expression which could represent a potential strategy for preventing PSD. FAU - Jin, Hui-Juan AU - Jin HJ AD - Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. FAU - Pei, Lei AU - Pei L AD - Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huahzong University of Science and Technology, Wuhan, 430030, China. AD - The Institute for Brain Research (IBR), Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, 430030, China. FAU - Li, Ya-Nan AU - Li YN AD - Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. FAU - Zheng, Hui AU - Zheng H AD - Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. FAU - Yang, Shuai AU - Yang S AD - Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. FAU - Wan, Yan AU - Wan Y AD - Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. FAU - Mao, Ling AU - Mao L AD - Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. FAU - Xia, Yuan-Peng AU - Xia YP AD - Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. FAU - He, Quan-Wei AU - He QW AD - Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. FAU - Li, Man AU - Li M AD - Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. FAU - Yue, Zhen-Yu AU - Yue ZY AD - Department of Neurology, The Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, USA. FAU - Hu, Bo AU - Hu B AD - Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. hubo@mail.hust.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20171102 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Antidepressive Agents, Second-Generation) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 01K63SUP8D (Fluoxetine) SB - IM MH - Animals MH - Antidepressive Agents, Second-Generation/pharmacology/*therapeutic use MH - Brain-Derived Neurotrophic Factor/*genetics MH - Depression/*drug therapy/*etiology/genetics MH - Depressive Disorder/drug therapy/etiology/genetics MH - Disease Models, Animal MH - Epigenesis, Genetic/*drug effects MH - Fluoxetine/pharmacology/*therapeutic use MH - Hippocampus/drug effects/metabolism MH - Male MH - Mice, Inbred C57BL MH - Stroke/*complications MH - Transcriptional Activation/drug effects PMC - PMC5668242 COIS- The authors declare that they have no competing interests. EDAT- 2017/11/04 06:00 MHDA- 2019/07/16 06:00 PMCR- 2017/11/02 CRDT- 2017/11/04 06:00 PHST- 2017/04/06 00:00 [received] PHST- 2017/10/03 00:00 [accepted] PHST- 2017/11/04 06:00 [entrez] PHST- 2017/11/04 06:00 [pubmed] PHST- 2019/07/16 06:00 [medline] PHST- 2017/11/02 00:00 [pmc-release] AID - 10.1038/s41598-017-13929-5 [pii] AID - 13929 [pii] AID - 10.1038/s41598-017-13929-5 [doi] PST - epublish SO - Sci Rep. 2017 Nov 2;7(1):14926. doi: 10.1038/s41598-017-13929-5.