As described above, glucose uptake is mainly dependent on that translocates GLUT4 glucose across the cell membrane extracelluar into cells [32]. It has been observed that disruption of GLUT4 expression in tissues or muscular fat results in the global insulin resistance [33]. GLUT4 knockout mice developed allergic muscle insulin resistance and diabetes [34] while the transgenic expression of GLUT4 through improved efficiency in vivo glucose [35]. the expression of GLUT4 was reported also to be changed in many physiological and pathological states.Thus, GLUT4 is considered an important therapeutic target for the treatment of T2DM. the GLUT4 gene promoter is dominated by two specific areas is enhanced myocyte factor-2 (MEF2) binding domain and domain I. When linked MEF2 binding domain of MEF2 and GLUT4 enhancer factor (GEF) associated with the domain name first, work is the most dynamic advanced transcription [36-38]. In this supportof, reducing MEF2 expression correlated with reduced GLUT4 expression [39]. Class II HDACs in particular, HDAC 4 and 5 apply MEF2 transcriptional activity and GLUT4 expression adjusted by virtue of their deacetylase activity that makes the chromosome structure compact complex such that transcription does not have access to the DNA [40-42]. the study also reported that the expression of GLUT4 expression in HDAC5 reduce heart tissue. phosphorylation on serine 259 and 498 HDAC5 by AMPK results in its dissociation from MEF2 domain [43,44].
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