SARA expression in high glucose induced epithelium to mesenchymal transition of proximal tubule cells / 中南大学学报(医学版)

ABSTRACT

OBJECTIVE@#To construct the cell model of epithelium to mesenchymal transition of proximal tubule cells induced by high glucose and to determine the expression of Smad anchor for receptor activation (SARA).@*METHODS@#Protein expression of vimentin, Zona occludens-1(ZO-1), and SARA was determined by Western blot, and their mRNA expressions were detected by Real-time PCR.@*RESULTS@#After stimulation by 30 mmol/L D-glucose, the protein and mRNA expression levels of vimentin in HK-2 cells increased in a time-dependent manner while the expression of ZO-1 was reduced significantly, especially at 48 h. Meanwhile, SARA was also decreased in a time-dependent manner.@*CONCLUSION@#High glucose can induce renal epithelium to mesenchymal transition, and SARA may be involved in this process as a protector.