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  • Title: E-cadherin and periostin in early detection and progression of diabetic nephropathy: epithelial-to-mesenchymal transition.
    Author: El-Dawla NMQ, Sallam AM, El-Hefnawy MH, El-Mesallamy HO.
    Journal: Clin Exp Nephrol; 2019 Aug; 23(8):1050-1057. PubMed ID: 31104272.
    Abstract:
    BACKGROUND: Diabetic nephropathy (DN) is a severe complication of diabetes mellitus (DM). Many mechanisms are involved in its development; one of these mechanisms is epithelial-to-mesenchymal transition (EMT). During EMT, losing of the epithelial biomarkers like E-cadherin and increasing of mesenchymal biomarkers like periostin are very characteristic. METHODS: The study included 19 healthy controls and 71 DN patients categorized according to their urinary albumin-to-creatinine ratio (UACR) into 19 normoalbuminuric (UACR < 30 mg/g), 37 microalbuminuric (UACR 30-300 mg/g), and 15 macroalbuminuric (UACR > 300 mg/g) patients. Fasting plasma glucose (FPG), glycated hemoglobin (HbA1C%), serum creatinine (Cr), and urea were measured. E-cadherin and periostin were measured by ELISA and compared among groups. RESULTS: Concerning E-cadherin levels, in comparison to control group, there were significantly decreased in all groups (0.94, 0.52, and 0.14 ng/mL in normoalbuminuria, microalbuminuria, and macroalbuminuria groups; respectively). For periostin levels, nonsignificant increase in normoalbuminuria (0.32 ng/mL) than control group (0.3 ng/mL) was observed. There was a significant increase in other groups with the highest values in macroalbuminuria group (1.66 ng/mL). E-cadherin and periostin were correlated with each other (r = - 0.353, P < 0.001). UACR was negatively correlated with E-cadherin and positively correlated with periostin. ROC curve analyses showed that the AUC to diagnose established microalbuminuria using E-cadherin was 0.998 (95% CI 0. 932-1), and using periostin was 0.833 (95% CI 0.709-0.919). CONCLUSION: Serum E-cadherin and periostin could be considered as reliable biomarkers involved in DN pathogenesis and linked to its stages.
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