VIRMA promotes neuron apoptosis via inducing m6A methylation of STK10 in spinal cord injury animal models

Author:

Hong Hongxiang1,Xu Guanhua12,Bao Guofeng1,Zhang Jinlong1,Chen Chu1,Chen Jiajia1,Wu Chunshuai1,Jiang Jiawei1,Huang Jiayi1,Huang Haiming3,Cui Zhiming12ORCID

Affiliation:

1. Department of Spine Surgery The second Affiliated Hospital of Nantong University Nantong China

2. Research Institute for Spine and Spinal Cord Disease of Nantong University Nantong China

3. Department of Ultrasonography The Second Affiliated Hospital of Nantong University Nantong University Nantong China

Abstract

AbstractBackgroundSpinal cord injury (SCI) occurs as a devastating neuropathic disease. The role of serine–threonine kinase 10 (STK10) in the development of SCI remains unclear.ObjectiveThis study aimed to investigate the action of m6A methylation on STK10 in the apoptosis of spinal cord neurons in the pathogenesis of SCI and the possible underlying mechanisms.MethodsRat model of SCI was established and subsequently evaluated for motor function, pathological conditions, and apoptosis of spinal cord neurons. And the effects of overexpression of STK10 on neuronal cells in animal models of spinal cord injury and glyoxylate deprivation (OGD) cell models were evaluated. m6A2Target database and SRAMP database were used to predict the m6A methylation sites of STK10. The methylation kits were used to detect overall m6A methylation. Finally, the interaction between STK10 and vir like m6A methyltransferase associated (VIRMA) was explored in animal and cellular models.ResultsSTK10 is markedly decreased in spinal cord injury models and overexpression of STK10 inhibits neuronal apoptosis. VIRMA can induce m6A methylation of STK10. VIRMA is over‐expressed in spinal cord injury models and negatively regulates the expression of STK10. m6A methylation and apoptosis of neuronal cells are reduced by the knockdown of VIRMA and STK10 shRNA have shown the opposite effects.ConclusionsVIRMA promotes neuronal apoptosis in spinal cord injury by regulating STK10 m6A methylation.

Funder

Science and Technology Project of Nantong City

Publisher

Wiley

Subject

Pharmacology (medical),Physiology (medical),Psychiatry and Mental health,Pharmacology

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