The Cytidine N-Acetyltransferase NAT10 Promotes Thalamus Hemorrhage-Induced Central Poststroke Pain by Stabilizing Fn14 Expression in Thalamic Neurons

Overview

Journal Mol Neurobiol

Specialties Molecular Biology
Neurology

Date 2024 Sep 13

PMID 39271624

Authors

Tianfeng Huang

Yang Zhang

Yan Niu

Yinggang Xiao

Yali Ge

Ju Gao

Affiliations

Soon will be listed here.

Abstract

The recognition of RNA N4-acetylcytidine (ac4C) modification as a significant type of gene regulation is growing; nevertheless, whether ac4C modification or the N-acetyltransferase 10 protein (NAT10, the only ac4C "writer" that is presently known) participates in thalamus hemorrhage (TH)-induced central poststroke pain (CPSP) is unknown. Here, we observed NAT10 was primarily located in the neuronal nuclei of the thalamus of mice, with Fn14 and p65. An increase of NAT10 mRNA and protein expression levels in the ipsilateral thalamus was observed from days 1 to 14 after TH. Inhibition of NAT10 by several different approaches attenuated Fn14 and p65 upregulation of TH mice, as well as tissue injury in the thalamus on the ipsilateral side, and the development and maintenance of contralateral nociceptive hypersensitivities. NAT10 overexpression increased Fn14 and p65 expression and elicited nociceptive hypersensitivities in naïve mice. Our findings suggest that ac4C modification and NAT10 participate in TH-induced CPSP by activating the NF-κB pathway through upregulating Fn14 in thalamic neurons. NAT10 could serve as a promising new target for CPSP treatment.

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