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
ObjectiveTo investigate the inhibitory effect of polysaccharides from Sargassum fusiforme on the HepG 2 cells. Methods Six kinds of polysaccharides were prepared by hot water extracting, ethanol and CaCl 2 precipitating and acid hydrolyzing. Inhibition rate of these polysaccharides on the HepG 2 cells were determined by MTT bioassay. Results Inhibition rate of two kinds of polysaccharides increased at lower concentration. Inhibition ratie of other polysaccharides increased with the increment of concentration. At the dose less than 2000mg?L -1,inhibition rate was not more than 40%. Conclusion All polysaccharide specimens obtained from Sargassum fusiforme have some inhibitory effects on human liver cancer cells HepG 2.