Colchicine reduces the activation of NLRP3 inflammasome in COVID-19 patients
Inflammation research : official journal of the European Histamine Research Society ... [et al.](2023)
摘要
Objective To evaluate whether colchicine treatment was associated with the inhibition of NLRP3 inflammasome activation in patients with COVID-19. Methods We present a post hoc analysis from a double-blinded placebo-controlled randomized clinical trial (RCT) on the effect of colchicine for the treatment of COVID-19. Serum levels of NOD-like receptor protein 3 (NLRP3) inflammasome products—active caspase-1 (Casp1p20), IL-1β, and IL-18—were assessed at enrollment and after 48–72 h of treatment in patients receiving standard-of-care (SOC) plus placebo vs. those receiving SOC plus colchicine. The colchicine regimen was 0.5 mg tid for 5 days, followed by 0.5 mg bid for another 5 days. Results Thirty-six patients received SOC plus colchicine, and thirty-six received SOC plus placebo. Colchicine reduced the need for supplemental oxygen and the length of hospitalization. On Days 2–3, colchicine lowered the serum levels of Casp1p20 and IL-18, but not IL-1β. Conclusion Treatment with colchicine inhibited the activation of the NLRP3 inflammasome, an event triggering the ‘cytokine storm’ in COVID-19. Trial registration numbers RBR-8jyhxh
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关键词
Colchicine,COVID-19,Inflammasome,Cytokines
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