PMID- 32484574 OWN - NLM STAT- MEDLINE DCOM- 20210513 LR - 20210513 IS - 1873-3468 (Electronic) IS - 0014-5793 (Linking) VI - 594 IP - 17 DP - 2020 Sep TI - Knockdown of microglial Cav2.2 N-type voltage-dependent Ca(2+) channel ameliorates behavioral deficits in a mouse model of Parkinson's disease. PG - 2914-2922 LID - 10.1002/1873-3468.13853 [doi] AB - Cav2.2 N-type voltage-dependent Ca(2+) channel (VDCC) expressed in neurons is known to be essential for neurotransmitter release. We have shown previously that this channel is also expressed in nonexcitable microglia and plays pivotal roles in microglial functions. Here, we have examined the effects of microglia-specific knockdown (KD) of Cav2.2 channel in a mouse model of Parkinson's disease (PD). We found that the KD of Cav2.2 channel reduces the accumulation of microglia in the substantia nigra and ameliorates the behavioral deficits in PD model mice. These results are in marked contrast with those found in microglia-specific KD of Cav1.2 L-type channel, where exacerbated symptoms are observed. Our results suggest that blockade of microglial Cav2.2 N-type VDCC is beneficial for the treatment of PD. CI - (c) 2020 Federation of European Biochemical Societies. FAU - Saegusa, Hironao AU - Saegusa H AUID- ORCID: 0000-0002-9757-0055 AD - Department of Pharmacology and Neurobiology, Graduate School of Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan. FAU - Li, Xu AU - Li X AD - Department of Pharmacology and Neurobiology, Graduate School of Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan. FAU - Wang, Xinshuang AU - Wang X AD - Department of Pharmacology and Neurobiology, Graduate School of Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan. FAU - Kayakiri, Midori AU - Kayakiri M AD - Department of Pharmacology and Neurobiology, Graduate School of Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan. FAU - Tanabe, Tsutomu AU - Tanabe T AUID- ORCID: 0000-0003-3000-9105 AD - Department of Pharmacology and Neurobiology, Graduate School of Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200616 PL - England TA - FEBS Lett JT - FEBS letters JID - 0155157 RN - 0 (CACNA1C protein, mouse) RN - 0 (Cacna1b protein, mouse) RN - 0 (Calcium Channels, L-Type) RN - 0 (Calcium Channels, N-Type) RN - 0 (Selective Estrogen Receptor Modulators) RN - 094ZI81Y45 (Tamoxifen) RN - 9P21XSP91P (1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine) SB - IM MH - 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine/administration & dosage MH - Animals MH - Calcium Channels, L-Type/deficiency/genetics MH - Calcium Channels, N-Type/deficiency/*genetics MH - Cell Count MH - Cell Death/genetics MH - Dopaminergic Neurons/*metabolism/pathology MH - Gene Expression MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Microglia/*metabolism/pathology MH - Parkinsonian Disorders/chemically induced/*genetics/metabolism/pathology MH - Psychomotor Performance/physiology MH - Selective Estrogen Receptor Modulators/pharmacology MH - Substantia Nigra/*metabolism/pathology MH - Tamoxifen/pharmacology OTO - NOTNLM OT - Cav2.2 OT - MPTP OT - N-type voltage-dependent Ca2+ channel OT - Parkinson's disease OT - VDCC OT - microglia EDAT- 2020/06/03 06:00 MHDA- 2021/05/14 06:00 CRDT- 2020/06/03 06:00 PHST- 2020/02/17 00:00 [received] PHST- 2020/05/13 00:00 [revised] PHST- 2020/05/20 00:00 [accepted] PHST- 2020/06/03 06:00 [pubmed] PHST- 2021/05/14 06:00 [medline] PHST- 2020/06/03 06:00 [entrez] AID - 10.1002/1873-3468.13853 [doi] PST - ppublish SO - FEBS Lett. 2020 Sep;594(17):2914-2922. doi: 10.1002/1873-3468.13853. Epub 2020 Jun 16.