PMID- 36204450 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221009 IS - 1662-5102 (Print) IS - 1662-5102 (Electronic) IS - 1662-5102 (Linking) VI - 16 DP - 2022 TI - Galectin-3 administration drives remyelination after hypoxic-ischemic induced perinatal white matter injury. PG - 976002 LID - 10.3389/fncel.2022.976002 [doi] LID - 976002 AB - Hypoxic-ischemic (HI) induced perinatal white matter injury (PWMI) is a major cause of neurologic disabilities characterized by selective oligodendroglial death and myelin disruption. Galectin-3 (Gal-3) modulates postnatal subventricular zone gliogenesis and attenuates ischemic injury. However, the association between Gal-3 and myelin formation still remains unclear. In this study, we first perform Gal-3 knockdown (KD) to identify the importance of Gal-3 on myelin formation. Our results show impeded myelin formation, manifested by Olig2/CC1 (+) mature oligodendrocytes number, expression of oligodendroglial maturation-associated markers (MBP and CNPase), and myelin thickness and integrity. Then we perform recombinant Gal-3 (rGal-3) administration by intracerebroventricular injection. Notably, although rGal-3 administration shows no beneficial effect on oligodendrogenesis and myelin formation under normal condition, our results show that rGal-3 administration attenuates cognitive deficits and drives remyelination after PWMI, which are coupled to signs of enhanced myelin resiliency and cognition. Also, our results indicates that the significant increases in substrates for remyelination of rGal-3 administration are accompanied by enhanced Iba-1 (microglia marker)/ Mrc1 (M2 marker) (+) microglia and decreased Iba-1/ iNOS (M1 marker) (+) microglia. Altogether, our data in this research confirm the association between Gal-3 and myelin formation, underscore its position for the capacity for remyelination and restoration of function, and unveils the efficacy of rGal-3 administration with anti-inflammatory phenotype microglia (M2 microglia) activation. Thus, the findings suggest that Gal-3 plays a significant role in myelin formation and remyelination restoration. CI - Copyright (c) 2022 Wang, Diao, Qiu, Gao, Wang, Chen, Xiao, Li and Chen. FAU - Wang, Qian AU - Wang Q AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China. AD - Key Laboratory of Neonatal Diseases, National Health Commission, Shanghai, China. AD - Department of Neonatology, Women and Children's Medical Center of Guangzhou, Guangzhou, China. FAU - Diao, Sihao AU - Diao S AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China. AD - Key Laboratory of Neonatal Diseases, National Health Commission, Shanghai, China. FAU - Qiu, Han AU - Qiu H AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China. AD - Key Laboratory of Neonatal Diseases, National Health Commission, Shanghai, China. FAU - Gao, Ruiwei AU - Gao R AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China. AD - Key Laboratory of Neonatal Diseases, National Health Commission, Shanghai, China. FAU - Wang, Minjie AU - Wang M AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China. AD - Key Laboratory of Neonatal Diseases, National Health Commission, Shanghai, China. FAU - Chen, Qiufan AU - Chen Q AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China. AD - Key Laboratory of Neonatal Diseases, National Health Commission, Shanghai, China. AD - Department of Neonatology, Women and Children's Medical Center of Guangzhou, Guangzhou, China. FAU - Xiao, Mili AU - Xiao M AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China. AD - Key Laboratory of Neonatal Diseases, National Health Commission, Shanghai, China. FAU - Li, Zhihua AU - Li Z AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China. AD - Key Laboratory of Neonatal Diseases, National Health Commission, Shanghai, China. FAU - Chen, Chao AU - Chen C AD - Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China. AD - Key Laboratory of Neonatal Diseases, National Health Commission, Shanghai, China. LA - eng PT - Journal Article DEP - 20220920 PL - Switzerland TA - Front Cell Neurosci JT - Frontiers in cellular neuroscience JID - 101477935 PMC - PMC9532057 OTO - NOTNLM OT - M2 microglia OT - galectin-3 OT - myelin formation OT - oligodendrocytes OT - perinatal white matter injury COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/10/08 06:00 MHDA- 2022/10/08 06:01 PMCR- 2022/01/01 CRDT- 2022/10/07 02:53 PHST- 2022/06/23 00:00 [received] PHST- 2022/08/31 00:00 [accepted] PHST- 2022/10/07 02:53 [entrez] PHST- 2022/10/08 06:00 [pubmed] PHST- 2022/10/08 06:01 [medline] PHST- 2022/01/01 00:00 [pmc-release] AID - 10.3389/fncel.2022.976002 [doi] PST - epublish SO - Front Cell Neurosci. 2022 Sep 20;16:976002. doi: 10.3389/fncel.2022.976002. eCollection 2022.