PMID- 14717919 OWN - NLM STAT- MEDLINE DCOM- 20040914 LR - 20220408 IS - 0085-2538 (Print) IS - 0085-2538 (Linking) VI - 65 IP - 2 DP - 2004 Feb TI - Salicylate reduces cisplatin nephrotoxicity by inhibition of tumor necrosis factor-alpha. PG - 490-9 AB - BACKGROUND: Salicylate was recently shown to provide protection against cisplatin nephrotoxicity in rats. We have demonstrated that enhanced tumor necrosis factor-alpha (TNF-alpha) production mediates, in part, cisplatin nephrotoxicity. The purpose of this study was to determine if the protective effects of salicylate were mediated through inhibition of TNF-alpha in vivo and to explore the mechanism of inhibition in vitro. METHODS: The effects of treatment with cisplatin alone and in combination with sodium salicylate in mice on renal function, histology, and gene expression were determined. The effects of cisplatin and salicylate on TNF-alpha expression, nuclear factor kappa B (NF-kappa B) activity, and apoptosis were determined in vitro using cultured murine proximal tubule cells. RESULTS: Salicylate significantly reduced both the functional and histologic evidence of cisplatin renal injury. Cisplatin increased the renal expression of TNF-alpha, monocyte chemoattractant protein-1 (MCP-1), intercellular adhesion molecule (ICAM)-1, heme oxygenase-1, TNF receptor 1 (TNFR1), and TNF receptor 2 (TNFR2). Treatment with sodium salicylate blunted the increase in TNF-alpha mRNA and also reduced serum TNF-alpha protein levels. Salicylate had little protective effect when administered with cisplatin to TNF-alpha-deficient mice. Cisplatin increased the degradation of I kappa B (I kappa B) in a time-dependent manner and also increased nuclear NF-kappa B binding activity. Salicylate inhibited I kappa B degradation and NF-kappa B binding activity in the presence of cisplatin. In addition, salicylate inhibited the cisplatin induced TNF-alpha mRNA increase in mouse proximal tubule epithelial (TKPT) cells. CONCLUSION: These results indicate that salicylate acts via inhibition of TNF-alpha production to reduce cisplatin nephrotoxicity. The inhibition of TNF-alpha production may be mediated via stabilization of I kappa B. FAU - Ramesh, Ganesan AU - Ramesh G AD - Division of Nephrology, The Penn State College of Medicine, Hershey, Pennsylvania 17033, USA. FAU - Reeves, W Brian AU - Reeves WB LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - Kidney Int JT - Kidney international JID - 0323470 RN - 0 (Anti-Inflammatory Agents, Non-Steroidal) RN - 0 (Antineoplastic Agents) RN - 0 (I-kappa B Proteins) RN - 0 (NF-kappa B) RN - 0 (Receptors, Tumor Necrosis Factor) RN - 0 (Salicylates) RN - 0 (Tumor Necrosis Factor-alpha) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) RN - Q20Q21Q62J (Cisplatin) SB - IM MH - Animals MH - Anti-Inflammatory Agents, Non-Steroidal/*pharmacology MH - Antineoplastic Agents/*toxicity MH - Apoptosis/drug effects MH - Cisplatin/*toxicity MH - Drug Interactions MH - Gene Expression/drug effects MH - I-kappa B Proteins/metabolism MH - Intercellular Adhesion Molecule-1/genetics MH - Kidney Diseases/chemically induced/*drug therapy/physiopathology MH - Kidney Tubules, Proximal/drug effects/physiology MH - Leukocytes/pathology MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Mutant Strains MH - NF-kappa B/metabolism MH - Receptors, Tumor Necrosis Factor/genetics MH - Salicylates/*pharmacology MH - Tumor Necrosis Factor-alpha/*genetics/metabolism MH - Up-Regulation EDAT- 2004/01/14 05:00 MHDA- 2004/09/15 05:00 CRDT- 2004/01/14 05:00 PHST- 2004/01/14 05:00 [pubmed] PHST- 2004/09/15 05:00 [medline] PHST- 2004/01/14 05:00 [entrez] AID - S0085-2538(15)49731-5 [pii] AID - 10.1111/j.1523-1755.2004.00413.x [doi] PST - ppublish SO - Kidney Int. 2004 Feb;65(2):490-9. doi: 10.1111/j.1523-1755.2004.00413.x.