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Renoprotective effect of deletion in murine aristolochic acid nephropathy. | LitMetric

Renoprotective effect of deletion in murine aristolochic acid nephropathy.

Am J Physiol Renal Physiol

Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama.

Published: January 2021

AI Article Synopsis

Article Abstract

Injured tubule epithelium stimulates a profibrotic milieu that accelerates loss of function in chronic kidney disease (CKD). This study tested the role of signal transducer and activator of transcription 1 (STAT1) in the progressive loss of kidney function in aristolochic acid (AA) nephropathy, a model of CKD. Mean serum creatinine concentration increased in wild-type (WT) littermates treated with AA, whereas mice were protected. Focal increases in the apical expression of kidney injury molecule (KIM)-1 were observed in the proximal tubules of WT mice with AA treatment but were absent in mice in the treatment group as well as in both control groups. A composite injury score, an indicator of proximal tubule injury, was reduced in mice treated with AA. Increased expression of integrin-β and phosphorylated Smad2/3 in proximal tubules as well as interstitial collagen and fibronectin were observed in WT mice following AA treatment but were all decreased in AA-treated mice. The data indicated that STAT1 activation facilitated the development of progressive kidney injury and interstitial fibrosis in AA nephropathy.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7847048PMC
http://dx.doi.org/10.1152/ajprenal.00401.2020DOI Listing

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