Revisiting Coley's Toxins: Immunogenic Cardiolipins from Streptococcus pyogenes.

Revisiting Coley's Toxins: Immunogenic Cardiolipins from Streptococcus pyogenes.
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重新审视COLEY的毒素:化脓性链球菌的免疫原生脂蛋白。

DOI:
10.1021/jacs.3c07727
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发表时间:
2023-10-04
影响因子:
15
通讯作者:
Clardy, Jon
Clardy, Jon
中科院分区:
化学1区
文献类型:
--
作者:
Shin, Yern-Hyerk;Bang, Sunghee;Park, Sung-Moo;Ma, Xiao;Cassilly, Chelsi;Graham, Daniel;Xavier, Ramnik;Clardy, Jon

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Coley毒素是一种早期的神秘的癌症(免疫)疗法,它是基于化脓性链球菌的制备。作为探索具有免疫调节潜力的细菌代谢物计划的一部分,S。在基于细胞的免疫测定中测定化脓菌代谢物,并鉴定出单一膜脂质18:1/18:0/18:1/18:0心磷脂。在其他细胞试验中对其活性进行了分析,结果表明其是TLR 2-TLR 1信号通路的激动剂,EC 50为6 μM,TNF-α诱导作用较强。具有转换酰基链的合成类似物在免疫测定中没有可测量的活性。一个单一的免疫原性心磷脂与有限的结构-活性谱的鉴定具有免疫调节,癌症免疫治疗和链球菌感染后自身免疫性疾病的影响。
Coley’s toxins, an early and enigmatic form of cancer (immuno)therapy, were based on preparations of Streptococcus pyogenes. As part of a program to explore bacterial metabolites with immunomodulatory potential, S. pyogenes metabolites were assayed in a cell-based immune assay, and a single membrane lipid, 18:1/18:0/18:1/18:0 cardiolipin, was identified. Its activity was profiled in additional cellular assays, which showed it to be an agonist of a TLR2–TLR1 signaling pathway with a 6 μM EC50 and robust TNF-α induction. A synthetic analog with switched acyl chains had no measurable activity in immune assays. The identification of a single immunogenic cardiolipin with a restricted structure–activity profile has implications for immune regulation, cancer immunotherapy, and poststreptococcal autoimmune diseases.
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