撰文:藍鯨曉虎 正值全球COVID-19感染人數(shù)突破千萬,,死亡人數(shù)超過50萬之際,繼地塞米松被報道對重癥患者有益后,,時隔數(shù)日,,用于痛風(fēng)治療的廉價藥秋水仙堿又進入了大眾視線。 近日,,JAMA Network Open 雜志發(fā)布了題為:Effect of Colchicine vs Standard Care on Cardiac and Inflammatory Biomarkers and Clinical Outcomes in Patients Hospitalized With Coronavirus Disease 2019 The GRECCO-19 Randomized Clinical Trial 的臨床試驗研究論文,。 該臨床試驗對比了秋水仙堿和常規(guī)治療對改善新冠病毒(SARS-CoV-2)感染者心臟和炎癥指標以及臨床結(jié)局的作用。 SARS-CoV感染與NLRP3炎癥小體激活有關(guān),,后者已被證明參與了急性肺損傷和/或急性呼吸窘迫綜合征的病理性級聯(lián)反應(yīng),。 秋水仙堿主要通過抑制微管聚合和白細胞浸潤發(fā)揮作用,但抑制NLRP3炎癥小體也是其發(fā)揮抗炎作用的重要機制,。雖然這一機制尚未完全闡明,,但有人認為秋水仙堿在兩個水平上抑制炎癥小體:首先通過抑制P2X7受體激活和ASC聚合,從而抑制吡喃樣結(jié)構(gòu)域之間的相互作用,;其次,,通過抑制線粒體轉(zhuǎn)運以及ASC向NLRP接近。 1. Deftereos SG, Giannopoulos G, Vrachatis DA, et al; GRECCO-19 Investigators. Effect of colchicine vs standard care on cardiac and inflammatory biomarkers and clinical outcomes in patients hospitalized with coronavirus disease 2019: the GRECCO-19 randomized clinical trial. JAMA Netw Open. 2020;3(6):e2013136. 2. Shi S, Qin M, Shen B, et al. Association of Cardiac Injury With Mortality in Hospitalized Patients With COVID-19 in Wuhan, China [published online ahead of print, 2020 Mar 25]. JAMA Cardiol. 2020;e200950. 3. Tardif JC, Kouz S, Waters DD, et al. Efficacy and Safety of Low-Dose Colchicine after Myocardial Infarction. N Engl J Med. 2019;381(26):2497-2505. 4. Deftereos S, Giannopoulos G, Angelidis C, et al. Anti-Inflammatory Treatment With Colchicine in Acute Myocardial Infarction: A Pilot Study. Circulation. 2015;132(15):1395-1403. 5. Hemkens LG, Ewald H, Gloy VL, et al. Colchicine for prevention of cardiovascular events. Cochrane Database Syst Rev. 2016;2016(1):CD011047. 6. Leung YY, Yao Hui LL, Kraus VB. Colchicine—update on mechanisms of action and therapeutic uses. Semin Arthritis Rheum. 2015;45(3):341-350. 7. Marques-da-Silva C, Chaves MM, Castro NG, Coutinho-Silva R, Guimaraes MZP. Colchicine inhibits cationic dye uptake induced by ATP in P2X2 and P2X7 receptor-expressing cells: implications for its therapeutic action. Br J Pharmacol. 2011;163(5):912-926. 8. Misawa T, Takahama M, Kozaki T, et al. Microtubule-driven spatial arrangement of mitochondria promotes activation of the NLRP3 inflammasome. Nat Immunol. 2013;14(5):454-460. |
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