PMID- 35041806 OWN - NLM STAT- MEDLINE DCOM- 20220330 LR - 20220330 IS - 1873-7064 (Electronic) IS - 0028-3908 (Linking) VI - 207 DP - 2022 Apr 1 TI - Upregulation of miR-19b-3p exacerbates chronic stress-induced changes in synaptic plasticity and cognition by targeting Drebrin. PG - 108951 LID - S0028-3908(22)00010-7 [pii] LID - 10.1016/j.neuropharm.2022.108951 [doi] AB - Chronic stress is associated with impairment of synapse plasticity in hippocampus and cognitive dysfunction in rodent and human. Notably, corticosterone (CORT) is believed to take responsibility for dendritic atrophy and reduction of spine number induced by chronic stress in hippocampus. But little is known about the molecular mechanisms underlying CORT induced abnormal synapse plasticity and cognitive dysfunction. Drebrin is an F-actin binding protein that modulates memory formation and maintenance by controlling the genesis and morphology of dendritic spines. In addition, miRNAs have been reported to participate in the negative regulation of protein-coding genes. In this study, five miRNAs capable of targeting Drebrin were selected by searching miRNA databases. One of these miRNAs, miR-19b-3p, was found to be upregulated in the hippocampal neurons of mice with chronic restraint stress (CRS). Luciferase reporter assay and Fluorescence in situ hybridization (FISH) were employed to identify the interaction between miR-19b-3p and Drebrin. In addition, silencing miR-19b-3p expression in vivo using an antagomir or in vitro using an inhibitor increased Drebrin expression, ameliorated the abnormal dendritic structure and upregulated the spine density in hippocampal CA1 pyramidal neurons of CRS mice and primary hippocampal neurons cultured under CORT stimulation, respectively. Electrophysiological analysis revealed that inhibition of miR-19b-3p rescued the limited synaptic transmission and synaptic plasticity in hippocampal neurons. Moreover, blocking miR-19b-3p drastically protected against cognitive deficits in CRS mice. These in vivo and in vitro findings indicate that the upregulation of miR-19b-3p exacerbates CRS-induced abnormal synaptic plasticity and cognitive impairment by targeting Drebrin. CI - Copyright (c) 2022. Published by Elsevier Ltd. FAU - Chen, Jingli AU - Chen J AD - Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China; Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China. FAU - Liu, Chang AU - Liu C AD - Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China; Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China. FAU - Xu, Mu AU - Xu M AD - Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China; Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China. FAU - Zhu, Jiaxi AU - Zhu J AD - Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China; Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China. FAU - Xia, Zhongyuan AU - Xia Z AD - Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China. Electronic address: xiazhongyuan2005@aliyun.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220115 PL - England TA - Neuropharmacology JT - Neuropharmacology JID - 0236217 RN - 0 (Antagomirs) RN - 0 (MIRN19 microRNA, mouse) RN - 0 (MicroRNAs) RN - 0 (Neuropeptides) RN - 0 (drebrins) SB - IM MH - Animals MH - Antagomirs MH - CA1 Region, Hippocampal MH - Cells, Cultured MH - Cognitive Dysfunction/etiology/*metabolism MH - Mice MH - MicroRNAs/drug effects/*metabolism MH - Neuronal Plasticity/*physiology MH - Neuropeptides/*metabolism MH - Pyramidal Cells MH - Stress, Psychological/complications MH - Up-Regulation OTO - NOTNLM OT - Anxiety OT - Chronic stress OT - Cognitive dysfunction OT - Cytoskeleton OT - Drebrin OT - Hippocampal neurons OT - MicroRNA OT - Synaptic plasticity EDAT- 2022/01/19 06:00 MHDA- 2022/03/31 06:00 CRDT- 2022/01/18 20:11 PHST- 2021/09/08 00:00 [received] PHST- 2021/12/09 00:00 [revised] PHST- 2022/01/12 00:00 [accepted] PHST- 2022/01/19 06:00 [pubmed] PHST- 2022/03/31 06:00 [medline] PHST- 2022/01/18 20:11 [entrez] AID - S0028-3908(22)00010-7 [pii] AID - 10.1016/j.neuropharm.2022.108951 [doi] PST - ppublish SO - Neuropharmacology. 2022 Apr 1;207:108951. doi: 10.1016/j.neuropharm.2022.108951. Epub 2022 Jan 15.