Restoring nuclear entry of Sirtuin 2 in oligodendrocyte progenitor cells promotes remyelination during ageing

Xiao Ru Ma, Xudong Zhu, Yujie Xiao, Hui Min Gu, Shuang Shuang Zheng, Liang Li, Fan Wang, Zhao Jun Dong, Di Xian Wang, Yang Wu, Chenyu Yang, Wenhong Jiang, Ke Yao, Yue Yin, Yang Zhang, Chao Peng, Lixia Gao, Zhuoxian Meng, Zeping Hu, Chong LiuLi Li, Hou Zao Chen, Yousheng Shu, Zhenyu Ju, Jing Wei Zhao

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The age-dependent decline in remyelination potential of the central nervous system during ageing is associated with a declined differentiation capacity of oligodendrocyte progenitor cells (OPCs). The molecular players that can enhance OPC differentiation or rejuvenate OPCs are unclear. Here we show that, in mouse OPCs, nuclear entry of SIRT2 is impaired and NAD+ levels are reduced during ageing. When we supplement β-nicotinamide mononucleotide (β-NMN), an NAD+ precursor, nuclear entry of SIRT2 in OPCs, OPC differentiation, and remyelination were rescued in aged animals. We show that the effects on myelination are mediated via the NAD+-SIRT2-H3K18Ac-ID4 axis, and SIRT2 is required for rejuvenating OPCs. Our results show that SIRT2 and NAD+ levels rescue the aged OPC differentiation potential to levels comparable to young age, providing potential targets to enhance remyelination during ageing.

Original languageEnglish (US)
Article number1225
JournalNature communications
Volume13
Issue number1
DOIs
StatePublished - Dec 2022
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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