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Article Dans Une Revue Journal of Surgical Research Année : 2011

Anti-apoptotic pro-survival effect of clotrimazole in a normothermic ischemia reperfusion injury animal model

Résumé

Background. Increasing evidence suggests that apoptosis plays a critical role in ischemia reperfusion (IR)-mediated liver injury. Clotrimazole (CTZ) is a potent antimycotic drug that also has a free radical scavenger activity. This study investigated the possible anti-apoptotic, pro-survival role of CTZ in hepatic IR injury in rats. Methods. Male Sprague-Dawley rats were divided into three groups: sham, control, and CTZ-treated (n = 10 each). Control and CTZ-treated animals were subjected to 60 min of normothermic ischemia of the left lateral lobe of the liver followed by 6 h of reperfusion. Animals were then sacrificed, the liver excised, and blood samples collected. Results. CTZ induced a significant increase in expression of anti-apoptotic Bcl-xL protein. Serum levels of aspartate transaminase and alanine transaminase were significantly lower in CTZ-treated animals than in controls. Histopathologically, tissue damage in the form of apoptosis was significantly lower in CTZ-treated animals than in controls. Expression of the activated form of caspase-3 and the cleaved form of its substrate, poly-ADP-ribose polymerase, decreased significantly in the CTZ-treated group compared with controls. CTZ increased the expression of phospho-p 44/42 ERK1/2 and decreased the phosphorylated form of JNK, without affecting p38 MAPK. Conclusion. CTZ protects the liver against IR apoptosis in rats through overexpression of the antiapoptotic protein Bcl-xL. Other pro-survival pathways such as phospho-p 44/42 ERK1/2 kinase are also activated while JNK is down-regulated.

Dates et versions

hal-02644433 , version 1 (28-05-2020)

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Antonio Iannelli, Georges de Sousa, Nathalie Zucchini-Pascal, Marie-Christine Saint-Paul, Jean Gugenheim, et al.. Anti-apoptotic pro-survival effect of clotrimazole in a normothermic ischemia reperfusion injury animal model. Journal of Surgical Research, 2011, 171 (1), pp.101 - 107. ⟨10.1016/j.jss.2010.03.035⟩. ⟨hal-02644433⟩
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