Furuichi K, Wada T, Iwata Y, Sakai N, Yoshimoto K, Kobayashi Ki KI, Mukaida N, Matsushima K, Yokoyama H. Administration of FR167653, a new anti-inflammatory compound, prevents renal ischaemia/reperfusion injury in mice.
Nephrol Dial Transplant 2002;
17:399-407. [PMID:
11865084 DOI:
10.1093/ndt/17.3.399]
[Citation(s) in RCA: 58] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND
Various types of chemokines/cytokines play important roles in ischaemia/reperfusion injury in kidneys. However, the roles of p38 mitogen-activated protein kinase (MAPK) in the inflammatory processes of renal ischaemia/reperfusion injury remain to be investigated. We explored the effect of FR167653, a specific inhibitor of p38 MAPK, on renal ischaemia/reperfusion injury in mice.
METHODS
The renal artery and vein of the left kidney were occluded with a vascular clamp for 60 min. FR167653 was injected 2 h before or 24 h after renal vessel clamp. Renal tissues were removed for pathological examination 4, 24 or 48 h after reperfusion.
RESULTS
We observed a large number of infiltrated cells and marked acute tubular necrosis in outer medulla after renal ischaemia/reperfusion injury in mice. FR167653 significantly decreased cell infiltration into outer medulla, and the extent of acute tubular necrosis 24 and 48 h after reperfusion. FR167653 markedly decreased the transcription of interleukin-1beta, tumour necrosis factor-alpha, monocyte chemoattractant protein-1 and regulated upon activation, normal T cell expression and secreted in diseased kidneys. Moreover, FR167653 decreased the number of phosphorylated p38 MAPK-positive cells 4 h after reperfusion.
CONCLUSION
These results suggest that FR167653 markedly ameliorated renal ischaemia/reperfusion injury, possibly by inhibiting cytokine/chemokine expression and consequent phosphorylation of p38 MAPK in renal tissue.
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