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TTP488 ameliorates NLRP3-associated inflammation, viability, apoptosis, and ROS production in an Alzheimer's disease cell model by mediating the JAK1/STAT3/NFκB/IRF3 pathway
CELL BIOCHEMISTRY AND FUNCTION ( IF 3.6 ) Pub Date : 2021-03-16 , DOI: 10.1002/cbf.3623
Jie Xue 1 , Peng Jia 2 , Dong Zhang 1 , Zhiwen Yao 1
Affiliation  

Alzheimer's disease (AD), the most prevalent dementia, is identified as a neurodegenerative disease arising from a degenerative disturbance in the central nervous system. A previous study reported that TTP488 could ameliorate symptoms in patients with mild AD, but the underlying mechanisms need to be studied further. Therefore, the objective of this study was to explore the role of TTP488 in the development of an AD cell model. Administration of TTP448 in an AD cell model reduced the expression of pro-inflammatory cytokines [interleukin (IL)-1β, IL-6, and TNF-α], reversed the inhibitory role of Aβ on cell proliferation and viability, and decreased Aβ-triggered cell apoptosis and reactive oxygen species (ROS) production. Furthermore, Aβ treatment induced activation of JAK1/STAT3/NFκB/IRF3 pathway as well as NLRP3 expression, and TTP488 administration partially reversed the activation of this pathway and NLRP3 expression. Use of WP1160, a STAT3 agonist, re-activated the downstream STAT3/NFκB/IRF3 pathway and NLRP3 expression. Moreover, we found that WP1160 counteracted the role of TTP488 in Aβ-induced SH-SY5Y cells' viability, inflammation, apoptosis, and ROS production.

中文翻译:

TTP488 通过介导 JAK1/STAT3/NFκB/IRF3 通路改善阿尔茨海默病细胞模型中 NLRP3 相关的炎症、活力、细胞凋亡和 ROS 的产生

阿尔茨海默病 (AD) 是最普遍的痴呆症,被确定为由中枢神经系统退行性障碍引起的神经退行性疾病。之前的一项研究报道,TTP488 可以改善轻度 AD 患者的症状,但其潜在机制需要进一步研究。因此,本研究的目的是探索 TTP488 在 AD 细胞模型发展中的作用。在 AD 细胞模型中施用 TTP448 降低了促炎细胞因子 [白细胞介素 (IL)-1β、IL-6 和 TNF-α] 的表达,逆转了 Aβ 对细胞增殖和活力的抑制作用,并降低了 Aβ-触发细胞凋亡和活性氧 (ROS) 产生。此外,Aβ 处理诱导 JAK1/STAT3/NFκB/IRF3 通路的激活以及 NLRP3 表达,和 TTP488 给药部分逆转了该途径的激活和 NLRP3 表达。使用 WP1160(一种 STAT3 激动剂)重新激活下游 STAT3/NFκB/IRF3 通路和 NLRP3 表达。此外,我们发现 WP1160 抵消了 TTP488 在 Aβ 诱导的 SH-SY5Y 细胞的活力、炎症、细胞凋亡和 ROS 产生中的作用。
更新日期:2021-03-16
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