Recent advances and challenges regarding epigenetic modification in HIV infection
The establishment and maintenance of latent cellular reservoirs of human immunodeficiency virus(HIV)within days after infection remains a major obstacle to achieving functional HIV cure.Epigenetics pertains to the regulation of gene ex-pression through means beyond mutations in DNA sequences.Research on epigenetic modifications in recent decades has facili-tated in-depth understanding of HIV pathogenesis and ongoing AIDS therapy strategies.This review briefly introduces princi-ples of epigenetics,and summarizes current epigenetic findings observed during HIV infection,particularly regarding the roles of epigenetic mechanisms including DNA methylation,histone modification,RNA modification,and non-coding RNAs in the processes of viral latency and formation of reservoirs.In addition,the implications and challenges of these epigenetic regulatory mechanisms in functional AIDS cure strategies are discussed.This review is aimed at encouraging more research groups to focus on epigenetic studies in HIV-infected populations,to develop more therapeutic drugs based on epigenetics,and to propose more rational and feasible functional AIDS cure strategies.
Human Immunodeficiency VirusepigeneticsDNA methylationhistone modificationnon-coding RNAsRNA modofication
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