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Structure-Guided Design and Development of Novel Cyclophilin A Inhibitors and Ganoderiol-F Derivatives: An In-Silico Approach
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Colchicine suppresses osteopontin expression and inflammatory cell infiltration in chronic cyclosporine

Can Li1, Chul Woo Yang, Hee Jong Ahn

  • 1Department of Internal Medicine, KangNam St. Mary's Hospital, Catholic University of Korea, 505 BanPo-Dong, SeoCho-Ku, 137-040 Seoul, Korea.

Nephron
|September 10, 2002
PubMed
Abstract

Insights

Colchicine reduces kidney damage from cyclosporine by inhibiting osteopontin (OPN) and decreasing macrophage accumulation. This treatment improves renal function and fibrosis in rats.

Area of Science:

  • Nephrology
  • Pharmacology
  • Immunology

Background:

  • Cyclosporine (CsA) causes chronic kidney injury, with mechanisms not fully understood.
  • Colchicine's anti-inflammatory effects suggest potential benefits in renal injury.
  • This study investigates colchicine's impact on osteopontin (OPN) and macrophage accumulation in CsA-induced nephrotoxicity.

Purpose of the Study:

  • To evaluate colchicine's inhibitory effects on osteopontin (OPN) expression.
  • To assess colchicine's impact on macrophage accumulation in chronic CsA nephrotoxicity.
  • To determine if colchicine mitigates renal dysfunction and fibrosis caused by CsA.

Main Methods:

  • Male Sprague-Dawley rats were treated with colchicine, CsA, or both for 4 weeks.
  • Renal function, histopathology, and ED-1 positive cells were assessed.
  • Osteopontin mRNA and protein expression were quantified using Northern blot and immunohistochemistry.

Main Results:

  • CsA treatment increased serum creatinine, decreased creatinine clearance, and induced tubulointerstitial fibrosis.
  • Colchicine administration reversed these CsA-induced changes.
  • Colchicine significantly reduced OPN mRNA and protein expression, which correlated with reduced macrophage infiltration and fibrosis.

Conclusions:

  • Colchicine abrogates the upregulation of chemotactic OPN expression and macrophage influx.
  • These effects are associated with improved renal tubulointerstitial fibrosis in chronic CsA nephrotoxicity.
  • Colchicine shows therapeutic potential for managing CsA-induced kidney injury.

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