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
中科院分区:
文献类型:
--
作者:
Shin, Yern-Hyerk;Bang, Sunghee;Park, Sung-Moo;Ma, Xiao;Cassilly, Chelsi;Graham, Daniel;Xavier, Ramnik;Clardy, Jon
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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