A new acid isolated from V. negundo L. inhibits NLRP3 inflammasome activation and protects against inflammatory diseases.

A new acid isolated from V. negundo L. inhibits NLRP3 inflammasome activation and protects against inflammatory diseases.
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DOI:
10.3389/fimmu.2023.1174463
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发表时间:
2023
影响因子:
7.3
通讯作者:
--
中科院分区:
医学2区
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--
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NLRP3炎性小体在先天免疫应答中起着至关重要的作用,其过度激活会引起热噬细胞死亡,并与炎症性疾病的发生有关。然而,NLRP3炎性小体靶向治疗仍有待于临床应用。在这里,我们首先从V. negundo L.草本植物中分离、纯化和表征了一种新的葡萄籽酸,该酸特异性抑制NLRP3炎症小体的激活,而不影响NLRC4或AIM2炎症小体。葡萄籽酸阻断NLRP3的寡聚化,从而抑制NLRP3炎性体的组装和激活。体内数据显示,葡萄籽酸对NLRP3炎性小体依赖性炎症有治疗作用。综上所述,我们的研究结果表明,葡萄籽酸是治疗NLRP3炎性体相关疾病的候选治疗剂。图形抽象
The NLRP3 inflammasome plays a critical role in the innate immune response, and its excessive activation will cause pyroptotic cell death and be associated with the onset of inflammatory diseases. However, NLRP3 inflammasome targeting therapies are still to be implemented in the clinic setting. Here, we first isolated, purified and characterized a novel Vitenegu acid from V. negundo L. herb that specifically inhibits NLRP3 inflammasome activation, without affecting NLRC4 or AIM2 inflammasomes. Vitenegu acid blocks the oligomerization of NLRP3, thus inhibiting NLRP3 inflammasome assembly and activation. In vivo data show that Vitenegu acid exerts therapeutic effects on NLRP3 inflammasome-dependent inflammation. Taken together, our results suggest that Vitenegu acid is a candidate therapeutic agent for treating NLRP3 inflammasome related diseases. Graphic Abstract
朊病毒样聚合是抗病毒免疫防御和炎症小体激活中信号转导的基础。
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