PMID- 33639208 OWN - NLM STAT- MEDLINE DCOM- 20210927 LR - 20210927 IS - 1090-2430 (Electronic) IS - 0014-4886 (Linking) VI - 340 DP - 2021 Jun TI - PPM1F in hippocampal dentate gyrus regulates the depression-related behaviors by modulating neuronal excitability. PG - 113657 LID - S0014-4886(21)00062-5 [pii] LID - 10.1016/j.expneurol.2021.113657 [doi] AB - Major depressive disorder (MDD) is a common, serious, debilitating mental illness. Protein phosphatase Mg(2+)/Mn(2+)-dependent 1F (PPM1F), a serine/threonine phosphatase, has been reported to have multiple biological and cellular functions. However, the effects of PPM1F and its neuronal substrates on depressive behaviors remain largely unknown. Here, we showed that PPM1F is widely distributed in the hippocampus, and chronic unpredictable stress (CUS) can induce increased expression of PPM1F in the hippocampus, which was correlated with depression-associated behaviors. Overexpression of PPM1F mediated by adeno-associated virus (AAV) in the dentate gyrus (DG) produced depression-related behaviors and enhanced susceptibility to subthreshold CUS (SCUS) in both male and female mice, while, knockout of PPM1F in DG produced antidepressant phonotypes under stress conditions. Whole-cell patch-clamp recordings demonstrated that overexpression of PPM1F increased the neuronal excitability of the granule cells in the DG. Consistent with neuronal hyperexcitability, overexpression of PPM1F regulated the expression of certain ion channel genes and induced decreased phosphorylation of Ca2+/calmodulin-dependent protein kinase II (CAMKII) and Adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) in hippocampus. These results suggest that PPM1F in the DG regulates depression-related behaviors by modulating neuronal excitability, which might be an important pathological gene for depression or other mental diseases. CI - Copyright (c) 2021 Elsevier Inc. All rights reserved. FAU - Liu, Jing AU - Liu J AD - Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong, China. FAU - Meng, Fantao AU - Meng F AD - Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong, China. FAU - Wang, Wentao AU - Wang W AD - Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong, China. FAU - Cui, Minghu AU - Cui M AD - Department of Psychology, Binzhou Medical University Hospital, Binzhou, Shandong, China. FAU - Wu, Min AU - Wu M AD - Neurosurgery, Binzhou Medical University Hospital, Binzhou, Shandong, China. FAU - Jiang, Shujun AU - Jiang S AD - Department of Physiology, Binzhou Medical University, Yantai, China. FAU - Dai, Juanjuan AU - Dai J AD - Cancer Research Institute, Binzhou Medical University Hospital, Binzhou, Shandong, China. FAU - Lian, Haifeng AU - Lian H AD - Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, Shandong, China. FAU - Li, Qiongyu AU - Li Q AD - Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, Shandong, China. FAU - Xu, Zhicheng AU - Xu Z AD - Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong, China. FAU - Wang, Yameng AU - Wang Y AD - Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong, China. FAU - Zhang, Jingyan AU - Zhang J AD - Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong, China. FAU - Li, Chen AU - Li C AD - Institute for Metabolic & Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, Shandong, China. Electronic address: lc_0625@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210224 PL - United States TA - Exp Neurol JT - Experimental neurology JID - 0370712 RN - EC 3.1.3.16 (PPM1F protein, mouse) RN - EC 3.1.3.16 (Phosphoprotein Phosphatases) SB - IM MH - Animals MH - Dentate Gyrus/*metabolism MH - Depression/genetics/*metabolism/psychology MH - Female MH - Locomotion/physiology MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Neurons/*metabolism MH - Phosphoprotein Phosphatases/*biosynthesis/genetics OTO - NOTNLM OT - Chronic unpredictable stress OT - Dentate gyrus OT - Depression-related behaviors OT - Neuronal excitability OT - PPM1F EDAT- 2021/02/28 06:00 MHDA- 2021/09/28 06:00 CRDT- 2021/02/27 20:08 PHST- 2020/08/11 00:00 [received] PHST- 2020/12/28 00:00 [revised] PHST- 2021/02/21 00:00 [accepted] PHST- 2021/02/28 06:00 [pubmed] PHST- 2021/09/28 06:00 [medline] PHST- 2021/02/27 20:08 [entrez] AID - S0014-4886(21)00062-5 [pii] AID - 10.1016/j.expneurol.2021.113657 [doi] PST - ppublish SO - Exp Neurol. 2021 Jun;340:113657. doi: 10.1016/j.expneurol.2021.113657. Epub 2021 Feb 24.