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14. Therapeutic Effects of FK506 on IgA Nephropathy Rat

Author

Wei, Linting, primary, Du, Yan, additional, Jia, Lining, additional, Ma, Xiaotao, additional, Chen, Zhao, additional, Lu, Jiamei, additional, Tian, Lifang, additional, Duan, Zhaoyang, additional, Dong, Fengming, additional, Lv, Zhian, additional, Yao, Ganglian, additional, Fu, Rongguo, additional, and Wang, Li, additional

Published
2017
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16. Therapeutic Effects of FK506 on IgA Nephropathy Rat.

Author

Wei, Linting, Du, Yan, Jia, Lining, Ma, Xiaotao, Chen, Zhao, Lu, Jiamei, Tian, Lifang, Duan, Zhaoyang, Dong, Fengming, Lv, Zhian, Yao, Ganglian, Fu, Rongguo, and Wang, Li

Subjects
TACROLIMUS, KIDNEY disease treatments, IGA glomerulonephritis, CELL proliferation, PHOSPHORYLATION, THERAPEUTICS
Abstract

Background/Aims: FK506 is an immunosuppressive drug and a calcineurin inhibitor that has been widely used in kidney disease in recent years. FK506 shows a wide range of biological and pharmaceutical effects; however, the mechanism of its anti- proliferative effect has not been well elucidated. An IgA nephropathy (IgAN) model was used to generate a mesangial cell proliferation model. This study aims to examine the effect of FK506 on IgAN rats and the underlying mechanisms. Methods: Hematuria, proteinuria and renal function were measured. To observe the pathological conditions, we performed HE (hematoxylin - eosin) and PAS (periodic acid - schiff) staining. Transcription and protein expression levels were detected by qRT - PCR (quantitative real-time polymerase chain reaction) and Wb (western blotting). The location and semi-quantitative expression levels of TRPCs, CaN (Calcineurin) and α-SMA were examined by IHC (Immunohistochemical staining). Results: We found that FK506 could improve hematuria, proteinuria and renal function, especially in the HF (high-dose FK506) groups. Renal pathological changes were ameliorated in the treatment groups. FK506 could significantly decrease TRPCs, CaN, phosphorylation of ERK1/2 and α-SMA expression. Conclusion: Taken together, these results suggest that the therapeutic effect of FK506 on IgAN might be partially associated with the down-regulated expression of TRPC channels, CaN and phosphorylation of ERK1/2. [ABSTRACT FROM AUTHOR]

Published
2018
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