戴痛消通过NLRP3信号通路治疗痛风性关节炎的机制研究
Mechanism of DaiTongXiao in the treatment of gouty arthritis through the NLRP3 signaling pathway.
发表日期:2023 Nov 02
作者:
Feifan Liu, Fanyi Shen, Yuanmei Bai, Yan Wan, Lijie Zheng, Jinglin He, Yuhuan Xie, Peixin Guo
来源:
JOURNAL OF ETHNOPHARMACOLOGY
摘要:
大痛消 (DTX) 是一种传统的中国傣族民间配方,用于治疗痛风性关节炎,有大量证据支持其抗炎特性。 NLRP3炎症小体紊乱与多种炎症性疾病的发生密切相关。为了阐明DTX对痛风性关节炎的治疗功效并揭示其潜在的潜在机制,通过紫外分光光度法和气相色谱法测定了DTX的主要活性成分。大鼠接受尿酸钠(MSU)诱导,然后用三磷酸腺苷(ATP)活化和脂多糖(LPS)诱导处理J774A.1细胞,并随后在Dulbecco改良的Eagle培养基中培养。评估大鼠足关节肿胀程度,并通过H评估踝关节
DaiTongXiao (DTX) is a traditional Chinese Dai folk formulation utilized for gouty arthritis treatment, with substantial evidence supporting its anti-inflammatory properties. The NLRP3 inflammasome disorder is tightly linked to the development of many inflammatory diseases.To elucidate the therapeutic efficacy of DTX in gouty arthritis and reveal its potential underlying mechanism.The primary active constituents in DTX were determined through ultraviolet spectrophotometry and gas chromatography. Rats underwent induction with monosodium urate (MSU), followed by treatment of J774A.1 cells with adenosine triphosphate (ATP) activation and lipopolysaccharide (LPS) induction and the subsequent culture in Dulbecco's modified Eagle's medium. The degree of foot joint swelling in rats was assessed, and ankle joints were evaluated through H&E staining. Enzyme-linked immunosorbent assay was performed to measure the levels of interleukin (IL)-1β, IL-6, IL-8, and tumor necrosis factor (TNF)-α in both serum and cells. Reverse transcription-polymerase chain reaction (RT-PCR) was performed to determine the relative mRNA expression levels of NLRP3, ASC, Caspase-1, and NF-κB in J774A.1 macrophages. The expression of NLRP3, ASC, Caspase-1, and NF-κB was examined by western blotting.DTX could alleviate MSU-induced joint swelling in rats, as evidenced by a reduction in joint inflammation. Moreover, DTX effectively enhanced the survival rate of J774A.1 cells following LPS induction and ATP activation. Furthermore, DTX significantly reduced IL-1β, IL-6, IL-8, and TNF-α levels in both cell culture medium and rat serum. RT-PCR results revealed that DTX notably downregulated the mRNA expression levels of NLRP3, ASC, Caspase-1, and NF-κB in J774A.1 cells. Additionally, DTX downregulated NLRP3, ASC, NF-κB, and Caspase-1 expression in the joint tissue.DTX exerts a significant anti-gouty arthritis effect, with its mechanism being tightly linked to the NLRP3 inflammatory signaling pathway. This pathway may be modulated by inhibiting IL-1β differentiation and maturation by downregulating NLRP3, ASC, Caspase-1, and NF-κB protein expression. This, in turn, leads to a reduction in the release of IL-6, IL-8, and TNF-α, ultimately impeding gouty arthritis progression.Copyright © 2023. Published by Elsevier B.V.