RESUMEN
N6-methyladenine(m6 A),a major RNA methylation modification,affects the development and progression of hu-man cancer through a variety of mechanisms. The m6 A modification also affects multiple aspects of RNA metabolism,ranging from RNA processing,nuclear export,RNA translation to decay. In this review,the basic concepts of m6 A methylation,regulation of m6 A methyltransferase complex and m6 A demethylases in several cancers and some m6 A performed the biological function of the modifica-tion as m6 A-binding proteins are introduced. In addition,the dual role of m6 A methylation and its potential in clinical application are summarized in this review.
RESUMEN
Objective@#To investigate whether N6-methyladenine DNA(6-mA DNA) modification is related to the occurrence of infantile hemangiomas (IH) at the epigenetic level.@*Methods@#The genomic 6-mA DNA data were obtained by MeDIP and high-throughput sequencing. The 6-mA DNA methylation levels in 3 proliferative hemangioma specimens and adjacent skin tissues were compared by u-test. The functional differences of 6-mA modified genes were analyzed by GO analysis.@*Results@#The level of 6-mA DNA modification in IH tissue was higher. The coverage of 6-mA Peaks in the genome was 0.037% in the tumor tissue, and the coverage of 6-mA Peaks in the surrounding skin tissue was 0.013% in the genome. The difference between the two groups was statistically significant (u=5999.87, P=0.00). The gene functions of differentially 6-mA modified genes in tumors were enriched in mesoderm development, stem cell differentiation, mesenchymal development, and cell cycle. These gene functions were closely related to the pathogenesis of IH.@*Conclusion@#Abnormal 6-mA DNA modification may be one of the pathogenesis of infantile hemangioma.