RNA modifications: importance in immune cell biology and related diseases
2022
Lian Cui | Rui Ma | Jiangluyi Cai | Chunyuan Guo | Zeyu Chen | Lingling Yao | Yuanyuan Wang | Rui Fan | Xin Wang | Yuling Shi
Abstract RNA modifications have become hot topics recently. By influencing RNA processes, including generation, transportation, function, and metabolization, they act as critical regulators of cell biology. The immune cell abnormality in human diseases is also a research focus and progressing rapidly these years. Studies have demonstrated that RNA modifications participate in the multiple biological processes of immune cells, including development, differentiation, activation, migration, and polarization, thereby modulating the immune responses and are involved in some immune related diseases. In this review, we present existing knowledge of the biological functions and underlying mechanisms of RNA modifications, including N 6-methyladenosine (m6A), 5-methylcytosine (m5C), N 1-methyladenosine (m1A), N 7-methylguanosine (m7G), N 4-acetylcytosine (ac4C), pseudouridine (Ψ), uridylation, and adenosine-to-inosine (A-to-I) RNA editing, and summarize their critical roles in immune cell biology. Via regulating the biological processes of immune cells, RNA modifications can participate in the pathogenesis of immune related diseases, such as cancers, infection, inflammatory and autoimmune diseases. We further highlight the challenges and future directions based on the existing knowledge. All in all, this review will provide helpful knowledge as well as novel ideas for the researchers in this area.
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