Title : NLRP3 Inflammasome Blockade Reduces Cocaine-Induced Microglial Activation and Neuroinflammation.

Pub. Date : 2021 May

PMID : 33417223






11 Functional Relationships(s)
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1 NLRP3 Inflammasome Blockade Reduces Cocaine-Induced Microglial Activation and Neuroinflammation. Cocaine NLR family pyrin domain containing 3 Homo sapiens
2 Based on the premise that cocaine induces both reactive oxygen species (ROS) as well as microglial activation, we hypothesized that cocaine-mediated microglial activation involves both ROS and NLRP3 signaling pathways. Cocaine NLR family pyrin domain containing 3 Homo sapiens
3 Based on the premise that cocaine induces both reactive oxygen species (ROS) as well as microglial activation, we hypothesized that cocaine-mediated microglial activation involves both ROS and NLRP3 signaling pathways. Cocaine NLR family pyrin domain containing 3 Homo sapiens
4 We found that microglia exposed to cocaine exhibited significant induction of NLRP3 and mature IL-1beta expression. Cocaine NLR family pyrin domain containing 3 Homo sapiens
5 Intriguingly, blockade of ROS (Tempol) attenuated cocaine-mediated priming of NLRP3 and microglial activation (CD11b). Cocaine NLR family pyrin domain containing 3 Homo sapiens
6 Blockade of NLRP3 by both pharmacological (MCC950) as well as gene silencing (siNLRP3) approaches underpinned the critical role of NLRP3 in cocaine-mediated activation of inflammasome and microglial activation. Cocaine NLR family pyrin domain containing 3 Homo sapiens
7 Blockade of NLRP3 by both pharmacological (MCC950) as well as gene silencing (siNLRP3) approaches underpinned the critical role of NLRP3 in cocaine-mediated activation of inflammasome and microglial activation. Cocaine NLR family pyrin domain containing 3 Homo sapiens
8 Furthermore, cortical brain tissues of chronic cocaine-dependent humans also exhibited upregulated expression of the NLRP3 pathway mediators compared with non-cocaine dependent controls. Cocaine NLR family pyrin domain containing 3 Homo sapiens
9 Furthermore, cortical brain tissues of chronic cocaine-dependent humans also exhibited upregulated expression of the NLRP3 pathway mediators compared with non-cocaine dependent controls. Cocaine NLR family pyrin domain containing 3 Homo sapiens
10 Collectively, these findings suggest that cocaine activates microglia involving the NLRP3 inflammasome pathway, thereby contributing to neuroinflammation. Cocaine NLR family pyrin domain containing 3 Homo sapiens
11 NLRP3 can thus be considered as a potential therapeutic target for alleviating cocaine-mediated neuroinflammation. Cocaine NLR family pyrin domain containing 3 Homo sapiens