Nzf2 Promotes Oligodendrocyte Differentiation and Regeneration Via Repressing HDAC1-mediated Histone Deacetylation

Overview

Journal Sci Adv

Specialties Biology
Science

Date 2024 Dec 13

PMID 39671488

Authors

Xiaofeng Xu

Minxi Fang

Lixia Chen

Hao Huang

Zhong-Min Dai

Junlin Yang

Mengsheng Qiu

Affiliations

Soon will be listed here.

Abstract

Proper axonal myelination and function of the vertebrate central nervous system rely largely on the timely differentiation of oligodendrocytes (OLs), yet key regulatory factors remain enigmatic. Our study reveals neural zinc finger (Nzf2) as a crucial orchestrator that controls the timing of OL differentiation both during development and myelin repair, contrasting with its previously suggested role in direct myelin gene regulation. ablation delays the onset of OL differentiation, while hyperactivation stimulates OL differentiation both during development and remyelination. Using RNA-seq and ChIP-seq, we pinpoint Nkx2.2 as a critical downstream target of Nzf2. Specific binding of Nzf2 in the gene locus inhibits histone deacetylation by disrupting the HDAC1 repressor complex and reducing deacetylase activity. Furthermore, Nzf2 overrides the inhibitory Notch signaling to initiate OL differentiation. Thus, we propose that the Notch-Nzf2-Nkx2.2 axis is a vital component of OL differentiation timing mechanism, suggesting Nzf2 as a potential therapeutic target for stimulating OL differentiation and boosting myelin repair in demyelinating diseases.

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