The Regulation of RNA m6A Modification on Myeloid-derived Suppressor Cells
RNA m6A modification is mainly regulated by m6A methyltransferase,m6A demethylase and m6A binding protein,which can change gene transcription and thus regulating physiological and patholog-ical processes.In recent years,more and more evidences have shown that m6A methylation plays an im-portant role in the regulation of tumor microenvironment(TME).It can affect the occurrence,develop-ment and metastasis of various types of cancer.Myeloid-derived suppressor cells(MDSCs),a group of immature myeloid cells,are important immune cells in TME which can be pathologically activated.It mainly inhibits the activity of T cells,so as to promote the immune escape of malignant tumors.Studies have shown that MDSC,a new and promising target for immunotherapy,can reshape the immunosuppres-sive microenvironment and modulate the efficacy of cancer immunotherapy.The role of m6A modification in the activation,differentiation and effector function of some immune cells has been widely concerned.However,the research on how m6A modification affects MDSC is still very limited.Therefore,it is par-ticularly important to further explore the relationship between them.Based on the introduction of MDSC and RNA m6A modification,this review summarizes the mechanism and research progress of RNA m6A modification in regulating MDSC in TME in order to provide new strategies for targeting MDSC from the perspective of epigenetic modification.
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