A Role for galectin-3 in renal tissue damage triggered by ischemia and reperfusion injury
Article first published online: 24 JUL 2008
DOI: 10.1111/j.1432-2277.2008.00705.x
© 2008 The Authors. Journal compilation © 2008 European Society for Organ Transplantation
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How to Cite
Fernandes Bertocchi, A. P., Campanhole, G., Wang, P. H. M., Gonçalves, G. M., Damião, M. J., Cenedeze, M. A., Beraldo, F. C., De Paula Antunes Teixeira, V., Dos Reis, M. A., Mazzali, M., Pacheco-Silva, A. and Câmara, N. O. S. (2008), A Role for galectin-3 in renal tissue damage triggered by ischemia and reperfusion injury. Transplant International, 21: 999–1007. doi: 10.1111/j.1432-2277.2008.00705.x
Publication History
- Issue published online: 9 SEP 2008
- Article first published online: 24 JUL 2008
- Received: 10 December 2007 Revision requested: 8 January 2008 Accepted: 9 May 2008
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Keywords:
- galectin-3;
- IL-1β;
- IL-6;
- ischemia and reperfusion injury;
- MCP-1
Summary
Ischemic-reperfusion injury (IRI) triggers an inflammatory response involving neutrophils/macrophages, lymphocytes and endothelial cells. Galectin-3 is a multi-functional lectin with a broad range of action such as promotion of neutrophil adhesion, induction of oxidative stress, mastocyte migration and degranulation, and production of pro-inflammatory cytokines. The aim of this study was evaluate the role of galectin-3 in the inflammation triggered by IRI. Galectin-3 knockout (KO) and wild type (wt) mice were subjected to 45 min of renal pedicle occlusion. Blood and kidney samples were collected at 6, 24, 48 and 120 h. Blood urea was analyzed enzymatically, while MCP-1, IL-6 and IL-1β were studied by real-time PCR. Reactive oxygen species (ROS) was investigated by flow cytometry. Morphometric analyses were performed at 6, 24, 48 and 120 h after reperfusion. Urea peaked at 24 h, being significantly lower in knockout animals (wt = 264.4 ± 85.21 mg/dl vs. gal-3 KO = 123.74 ± 29.64 mg/dl, P = 0.001). Galectin-3 knockout animals presented less acute tubular necrosis and a more prominent tubular regeneration when compared with controls concurrently with lower expression of MCP-1, IL-6, IL-1β, less macrophage infiltration and lower ROS production at early time points. Galectin-3 seems to play a role in renal IRI involving the secretion of macrophage-related chemokine, pro-inflammatory cytokines and ROS production.

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