, Volume 36, Issue 2, pp 330-336
Date: 26 Sep 2012

Sevoflurane Combined with ATP Activates Caspase-1 and Triggers Caspase-1-Dependent Pyroptosis in Murine J774 Macrophages

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Sevoflurane is one of the most commonly used volatile anesthetics. Recent studies have shown that sevoflurane plays an important role in modulation of inflammation and immunity. However, little is known about the related molecular mechanisms. This study was designed to investigate the effects and mechanisms of sevoflurane on inflammatory cell death pyroptosis in the murine macrophage cell line J774 cells. Sevoflurane combined with ATP could increase the level of activated caspase-1, pyroptosis, and reactive oxygen species (ROS). Furthermore, treatment of cells with the caspase-1 inhibitor Ac-YVAD-CMK dramatically decreased the percentage of pyroptosis. In addition, inhibition of ROS with N-acetyl-l-cysteine or diphenyleneiodonium significantly reduced the activated levels of caspase-1. These results demonstrated that sevoflurane combined with ATP could activate caspase-1 and trigger caspase-1-dependent pyroptosis through the modulation of ROS production.