PMID- 35418597 OWN - NLM STAT- MEDLINE DCOM- 20220415 LR - 20220527 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 12 IP - 1 DP - 2022 Apr 13 TI - Oscillatory calcium release and sustained store-operated oscillatory calcium signaling prevents differentiation of human oligodendrocyte progenitor cells. PG - 6160 LID - 10.1038/s41598-022-10095-1 [doi] LID - 6160 AB - Endogenous remyelination in demyelinating diseases such as multiple sclerosis is contingent upon the successful differentiation of oligodendrocyte progenitor cells (OPCs). Signaling via the Galpha(q)-coupled muscarinic receptor (M(1/3)R) inhibits human OPC differentiation and impairs endogenous remyelination in experimental models. We hypothesized that calcium release following Galpha(q)-coupled receptor (G(q)R) activation directly regulates human OPC (hOPC) cell fate. In this study, we show that specific G(q)R agonists activating muscarinic and metabotropic glutamate receptors induce characteristic oscillatory calcium release in hOPCs and that these agonists similarly block hOPC maturation in vitro. Both agonists induce calcium release from endoplasmic reticulum (ER) stores and store operated calcium entry (SOCE) likely via STIM/ORAI-based channels. siRNA mediated knockdown (KD) of obligate calcium sensors STIM1 and STIM2 decreased the magnitude of muscarinic agonist induced oscillatory calcium release and attenuated SOCE in hOPCs. In addition, STIM2 expression was necessary to maintain the frequency of calcium oscillations and STIM2 KD reduced spontaneous OPC differentiation. Furthermore, STIM2 siRNA prevented the effects of muscarinic agonist treatment on OPC differentiation suggesting that SOCE is necessary for the anti-differentiative action of muscarinic receptor-dependent signaling. Finally, using a gain-of-function approach with an optogenetic STIM lentivirus, we demonstrate that independent activation of SOCE was sufficient to significantly block hOPC differentiation and this occurred in a frequency dependent manner while increasing hOPC proliferation. These findings suggest that intracellular calcium oscillations directly regulate hOPC fate and that modulation of calcium oscillation frequency may overcome inhibitory Galpha(q)-coupled signaling that impairs myelin repair. CI - (c) 2022. The Author(s). FAU - Seidman, Richard A AU - Seidman RA AD - Neuroscience Program, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA. FAU - Khattab, Heba AU - Khattab H AD - Department of Pharmacology and Toxicology, Jacob's School of Medicine and Biomedical Sciences, University at Buffalo, 955 Main Street, Buffalo, NY, 14203, USA. FAU - Polanco, Jessie J AU - Polanco JJ AD - Neuroscience Program, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA. FAU - Broome, Jacqueline E AU - Broome JE AD - Department of Pharmacology and Toxicology, Jacob's School of Medicine and Biomedical Sciences, University at Buffalo, 955 Main Street, Buffalo, NY, 14203, USA. FAU - Sim, Fraser J AU - Sim FJ AD - Neuroscience Program, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA. fjsim@buffalo.edu. AD - Department of Pharmacology and Toxicology, Jacob's School of Medicine and Biomedical Sciences, University at Buffalo, 955 Main Street, Buffalo, NY, 14203, USA. fjsim@buffalo.edu. LA - eng GR - UL1 TR001412/TR/NCATS NIH HHS/United States GR - UL1TR001412-S1/TR/NCATS NIH HHS/United States GR - R01NS104021/NS/NINDS NIH HHS/United States GR - R01 NS104021/NS/NINDS NIH HHS/United States GR - R25GM09545902/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20220413 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Calcium, Dietary) RN - 0 (Muscarinic Agonists) RN - 0 (ORAI1 Protein) RN - 0 (RNA, Small Interfering) RN - 0 (Stromal Interaction Molecule 1) RN - 0 (Stromal Interaction Molecule 2) RN - SY7Q814VUP (Calcium) SB - IM MH - Calcium/metabolism MH - *Calcium Signaling/physiology MH - Calcium, Dietary/metabolism MH - Humans MH - Muscarinic Agonists/pharmacology MH - ORAI1 Protein/metabolism MH - *Oligodendrocyte Precursor Cells/metabolism MH - RNA, Small Interfering/genetics/metabolism MH - Stromal Interaction Molecule 1/genetics/metabolism MH - Stromal Interaction Molecule 2/metabolism PMC - PMC9007940 COIS- The authors declare no competing interests. EDAT- 2022/04/15 06:00 MHDA- 2022/04/16 06:00 PMCR- 2022/04/13 CRDT- 2022/04/14 05:18 PHST- 2021/05/14 00:00 [received] PHST- 2022/03/31 00:00 [accepted] PHST- 2022/04/14 05:18 [entrez] PHST- 2022/04/15 06:00 [pubmed] PHST- 2022/04/16 06:00 [medline] PHST- 2022/04/13 00:00 [pmc-release] AID - 10.1038/s41598-022-10095-1 [pii] AID - 10095 [pii] AID - 10.1038/s41598-022-10095-1 [doi] PST - epublish SO - Sci Rep. 2022 Apr 13;12(1):6160. doi: 10.1038/s41598-022-10095-1.