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Deprecated: Implicit conversion from float 284.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Int+J+Clin+Exp+Pathol 2015 ; 8 (3): 2746-54 Nephropedia Template TP
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Histone acetyltransferase inhibitor C646 reverses epithelial to mesenchymal transition of human peritoneal mesothelial cells via blocking TGF-?1/Smad3 signaling pathway in vitro #MMPMID26045780
Yang Y; Liu K; Liang Y; Chen Y; Chen Y; Gong Y
Int J Clin Exp Pathol 2015[]; 8 (3): 2746-54 PMID26045780show ga
Peritoneal fibrosis resulting from long-term peritoneal dialysis is a major cause of failure of peritoneal ultrafiltration function and main reason of dropout from peritoneal dialysis. Epithelial-mesenchymal transition (EMT) of peritoneal mesochelial cells (HPMCs) is a major contributor of peritoneal fibrosis. Recently, the association between histone acetylation and kinds of fibrosis including liver, lung and kidney fibrosis is well established. Thus, in this study we tried to profile whether histone acetylation is also operates EMT process in HPMCs and what?s the regulatory mechanism. We established an EMT model of HPMCs through high glucose treatment. And hyperacetylation of H3 histone was found using western blot in EMT model. After treated with C646, a histone acetyltransferase (HAT) inhibitor, high glucose-induced EMT in HPMCs was counteracted. To further understand the molecular mechanism of C646 rescues high glucose-induced EMT, CHIP-qPCRwas used to examine the modulation of histone H3 acetylation at promoters of series signaling target genes. We found that the H3 acetylation level at TGF-?1 gene promoter was down-regulation by C646 treatment. Moreover, we also found that TGF-?1/Smad3 signaling was blocked. Hence, our results suggest that histone H3 acetylation activated TGF-?1/Smad3 signaling during EMT of HPMCs, and C646 can rescue the mesenchymal phenotype transition. These findings may provide a novel pathogenic mechanism and therapeutic target for peritoneal fibrosis.