PMID- 32208888 OWN - NLM STAT- MEDLINE DCOM- 20210730 LR - 20230317 IS - 1551-4005 (Electronic) IS - 1538-4101 (Print) IS - 1551-4005 (Linking) VI - 19 IP - 9 DP - 2020 May TI - Exosomes-carried microRNA-26b-5p regulates microglia M1 polarization after cerebral ischemia/reperfusion. PG - 1022-1035 LID - 10.1080/15384101.2020.1743912 [doi] AB - Exosome and microRNAs (miRs) are implicated in ischemia/reperfusion (I/R) process. In this study, I/R mouse model was established, and exosomes derived from human umbilical cord mesenchymal stem cells (hUCMSCs) were isolated, identified, and injected to I/R mice to observe nerve injury and microglia M1 polarization. The differentially expressed genes in I/R microglia from databases were analyzed, and miRs differentially expressed in exosomes-treated microglia were analyzed by microarray. miR-26b-5p expression in hUCMSCs was intervened. Besides, microglia was extracted and co-cultured with SH-SY5Y or PC12 cells in oxygen-glucose deprivation/reperfusion (OGD/R) models to simulate I/R in vivo. Additionally, Toll-like receptor (TLR) activator GS-9620 was added to microglia. Exosomes alleviated nerve injury and inhibited M1 polarization in microglia. After I/R modeling, CH25H expression in microglia was upregulated but decreased after exosome treatment. miR-26b-5p was upregulated in microglia after exosome treatment and could target CH25H. Reduction in exosomal miR-26b-5p reversed the effects of hUCMSCs-exos on microglia. TLR pathway was activated in microglia after I/R but exosomes prevented its activation. Exosomal miR-26b-5p could repress M1 polarization of microglia by targeting CH25H to inactivate the TLR pathway, so as to relieve nerve injury after cerebral I/R. This investigation may offer new approaches for I/R treatment. FAU - Li, Guangying AU - Li G AD - Department of Neurosurgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong, P.R. China. FAU - Xiao, Longhai AU - Xiao L AD - Department of Neurosurgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong, P.R. China. FAU - Qin, Hao AU - Qin H AD - Department of Neurosurgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong, P.R. China. FAU - Zhuang, Qiang AU - Zhuang Q AD - Department of Neurosurgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong, P.R. China. FAU - Zhang, Weiwei AU - Zhang W AD - Department of Neurosurgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong, P.R. China. FAU - Liu, Long AU - Liu L AD - Department of Neurosurgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong, P.R. China. FAU - Di, Chao AU - Di C AD - Department of Neurosurgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong, P.R. China. FAU - Zhang, Yabo AU - Zhang Y AD - Department of Neurosurgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong, P.R. China. LA - eng PT - Journal Article PT - Retracted Publication DEP - 20200325 PL - United States TA - Cell Cycle JT - Cell cycle (Georgetown, Tex.) JID - 101137841 RN - 0 (MIRN26A microRNA, human) RN - 0 (MicroRNAs) RN - EC 1.14.- (Steroid Hydroxylases) RN - EC 1.14.99.38 (cholesterol 25-hydroxylase) RN - IY9XDZ35W2 (Glucose) SB - IM RIN - Cell Cycle. 2023 May;22(9):1156. PMID: 36927286 MH - Animals MH - Brain Ischemia/*metabolism MH - Cell Hypoxia MH - Cell Polarity/*genetics MH - Coculture Techniques MH - Disease Models, Animal MH - Exosomes/*metabolism MH - Glucose/deficiency MH - Humans MH - Mesenchymal Stem Cells/metabolism MH - Mice MH - Mice, Inbred BALB C MH - MicroRNAs/genetics/*metabolism MH - Microglia/*metabolism MH - PC12 Cells MH - Rats MH - Reperfusion Injury/*metabolism MH - Steroid Hydroxylases/metabolism MH - Transfection PMC - PMC7217376 OTO - NOTNLM OT - CH25H OT - Ischemia/reperfusion OT - M1 microglia OT - exosome OT - human umbilical cord mesenchymal stem cell OT - microRNA-26b-5p EDAT- 2020/03/27 06:00 MHDA- 2021/07/31 06:00 PMCR- 2021/03/25 CRDT- 2020/03/27 06:00 PHST- 2020/03/27 06:00 [pubmed] PHST- 2021/07/31 06:00 [medline] PHST- 2020/03/27 06:00 [entrez] PHST- 2021/03/25 00:00 [pmc-release] AID - 1743912 [pii] AID - 10.1080/15384101.2020.1743912 [doi] PST - ppublish SO - Cell Cycle. 2020 May;19(9):1022-1035. doi: 10.1080/15384101.2020.1743912. Epub 2020 Mar 25.