PMID- 26330558 OWN - NLM STAT- MEDLINE DCOM- 20160208 LR - 20210205 IS - 1083-351X (Electronic) IS - 0021-9258 (Print) IS - 0021-9258 (Linking) VI - 290 IP - 42 DP - 2015 Oct 16 TI - Myosin IIb-dependent Regulation of Actin Dynamics Is Required for N-Methyl-D-aspartate Receptor Trafficking during Synaptic Plasticity. PG - 25395-410 LID - 10.1074/jbc.M115.644229 [doi] AB - N-Methyl-d-aspartate receptor (NMDAR) synaptic incorporation changes the number of NMDARs at synapses and is thus critical to various NMDAR-dependent brain functions. To date, the molecules involved in NMDAR trafficking and the underlying mechanisms are poorly understood. Here, we report that myosin IIb is an essential molecule in NMDAR synaptic incorporation during PKC- or theta burst stimulation-induced synaptic plasticity. Moreover, we demonstrate that myosin light chain kinase (MLCK)-dependent actin reorganization contributes to NMDAR trafficking. The findings from additional mutual occlusion experiments demonstrate that PKC and MLCK share a common signaling pathway in NMDAR-mediated synaptic regulation. Because myosin IIb is the primary substrate of MLCK and can regulate actin dynamics during synaptic plasticity, we propose that the MLCK- and myosin IIb-dependent regulation of actin dynamics is required for NMDAR trafficking during synaptic plasticity. This study provides important insights into a mechanical framework for understanding NMDAR trafficking associated with synaptic plasticity. CI - (c) 2015 by The American Society for Biochemistry and Molecular Biology, Inc. FAU - Bu, Yunfei AU - Bu Y AD - From the Department of Neurobiology, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China. FAU - Wang, Ning AU - Wang N AD - From the Department of Neurobiology, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China, the Key Laboratory of Developmental Genes and Human Disease of the Ministry of Education of China, Institute of Life Sciences, Southeast University, Nanjing, Jiangsu Province 210096, China. FAU - Wang, Shaoli AU - Wang S AD - From the Department of Neurobiology, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China, the Key Laboratory of Developmental Genes and Human Disease of the Ministry of Education of China, Institute of Life Sciences, Southeast University, Nanjing, Jiangsu Province 210096, China. FAU - Sheng, Tao AU - Sheng T AD - From the Department of Neurobiology, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China, the Key Laboratory of Developmental Genes and Human Disease of the Ministry of Education of China, Institute of Life Sciences, Southeast University, Nanjing, Jiangsu Province 210096, China. FAU - Tian, Tian AU - Tian T AD - From the Department of Neurobiology, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China. FAU - Chen, Linlin AU - Chen L AD - From the Department of Neurobiology, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China. FAU - Pan, Weiwei AU - Pan W AD - From the Department of Neurobiology, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China. FAU - Zhu, Minsheng AU - Zhu M AD - the Key Laboratory of Model Animal for Disease Study of the Ministry of Education of China, Model Animal Research Center, Nanjing University, Nanjing, Jiangsu Province 210063, China, and. FAU - Luo, Jianhong AU - Luo J AD - the Department of Neurobiology, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province 310058, China. FAU - Lu, Wei AU - Lu W AD - From the Department of Neurobiology, Nanjing Medical University, Nanjing, Jiangsu Province 210029, China, the Key Laboratory of Developmental Genes and Human Disease of the Ministry of Education of China, Institute of Life Sciences, Southeast University, Nanjing, Jiangsu Province 210096, China, the Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province 226001, China, luwei@seu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150901 PL - United States TA - J Biol Chem JT - The Journal of biological chemistry JID - 2985121R RN - 0 (Actins) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - EC 2.7.11.13 (Protein Kinase C) RN - EC 2.7.11.18 (Myosin-Light-Chain Kinase) RN - EC 3.6.1.- (Nonmuscle Myosin Type IIB) SB - IM MH - Actins/*physiology MH - Animals MH - Enzyme Activation MH - Hippocampus/physiology MH - In Vitro Techniques MH - Mice MH - Mice, Knockout MH - Myosin-Light-Chain Kinase/genetics/metabolism MH - *Neuronal Plasticity MH - Nonmuscle Myosin Type IIB/*physiology MH - Protein Kinase C/metabolism MH - Protein Transport MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, N-Methyl-D-Aspartate/*metabolism PMC - PMC4646188 OTO - NOTNLM OT - NMDA receptor OT - actin OT - myosin OT - myosin IIb OT - patch clamp OT - protein kinase C (PKC) OT - synaptic plasticity OT - trafficking EDAT- 2015/09/04 06:00 MHDA- 2016/02/09 06:00 PMCR- 2016/10/16 CRDT- 2015/09/03 06:00 PHST- 2015/02/10 00:00 [received] PHST- 2015/09/03 06:00 [entrez] PHST- 2015/09/04 06:00 [pubmed] PHST- 2016/02/09 06:00 [medline] PHST- 2016/10/16 00:00 [pmc-release] AID - S0021-9258(20)44559-4 [pii] AID - M115.644229 [pii] AID - 10.1074/jbc.M115.644229 [doi] PST - ppublish SO - J Biol Chem. 2015 Oct 16;290(42):25395-410. doi: 10.1074/jbc.M115.644229. Epub 2015 Sep 1.