实用医学杂志 ›› 2025, Vol. 41 ›› Issue (6): 800-805.doi: 10.3969/j.issn.1006-5725.2025.06.004

• 基础研究 • 上一篇    

TLR4/NF-κB-NLRP3炎症小体信号通路在实验性自身免疫性前列腺炎大鼠中的作用机制

陆良喜1,史宏1,黄志敏2,陆杰1,王文杰3()   

  1. 1.广西中医药大学第一附属医院仁爱分院男科 (广西 南宁 530001 )
    2.广西中医药大学第一附属医院风湿病科 (广西 南宁 530023 )
    3.广西中医药大学基础医学院 (广西 南宁 530001 )
  • 收稿日期:2024-12-13 出版日期:2025-03-25 发布日期:2025-03-31
  • 通讯作者: 王文杰 E-mail:87637137@qq.com
  • 基金资助:
    国家自然科学基金青年科学基金项目(82205118);广西自然科学基金项目(2020GXNSFBA297101)

Exploring mechanism of TLR4/NF⁃κB⁃NLRP3 inflammasome signaling pathway in experimental autoimmune prostatitis rats

Liangxi LU1,Hong SHI1,Zhimin HUANG2,Jie LU1,Wenjie. WANG3()   

  1. Department of Andrology,Ren′ai Branch of the First Affiliated Hospital of Guangxi University of Chinese Medicine,Nanning 530001,Guangxi,China
  • Received:2024-12-13 Online:2025-03-25 Published:2025-03-31
  • Contact: Wenjie. WANG E-mail:87637137@qq.com

摘要:

目的 基于TLR4/NF-κB-NLRP3炎症小体信号通路探讨EAP大鼠发病机制。 方法 将12只SD雄性大鼠数字表随机分为正常组(N)、模型组(M)、Caspase-1抑制剂组(Caspase-1)、NLRP3 抑制剂MCC950组(NLRP3),每组3只。药物干预后,采用HE染色、ELISA、WB法等观察相关指标。 结果 与N组比较,M组大鼠前列腺腺体结构损伤明显,炎症细胞浸润。与M组比较,Caspase-1组、NLRP3组前列腺腺体结构损伤减轻。与N组比较,M组大鼠前列腺组织TLR4、P-NF-κB P65、NLRP3、ASC、Cleaced-Caspase-1、Cleaced-IL-1β、IL-18蛋白表达升高(P < 0.01)。与M组比较,NLRP3组、Caspase-1组TLR4、P-NFκB P65、Cleaced-Caspase-1、NLRP3、ASC、Cleaced-IL-1β、IL-18蛋白表达降低(P < 0.01)。与N组比较,M组大鼠血清炎症因子IL-1β、IL-6、IFN-γ、IL-8、IL-18、IL-17A、TNF-α水平升高(P < 0.01);血清IL-10水平略低,无统计学意义。与M组比较,Caspase-1组、NLRP3组大鼠血清IL-1β、IL-6、IL-8、IL-17A、IL-18、IFN-γ、TNF-α水平显著下降(P < 0.05或P < 0.01);血清IL-10水平升高(P < 0.01)。 结论 TLR4/NF-κB-NLRP3炎症小体信号通路激活后促进EAP大鼠前列腺炎症的发生发展。

关键词: 慢性前列腺炎, 慢性盆腔疼痛综合征, NLRP3炎症小体, TLR4/NF-κB-NLRP3炎症小体信号通路, 炎症因子

Abstract:

Objective The pathogenesis of EAP in rats based on the TLR4/NF-κB?NLRP3 inflammasome signaling pathway was explored. Methods Randomly divide 12 male SD rats into 4 groups using the number table, namely normal group (N), model group (M), Caspase-1 inhibitor group (Caspase-1), and NLRP3 inhibitor MCC950 group (NLRP3), with 3 rats in each group. After drug intervention, relevant indicators were observed by using HE staining, ELISA, WB methods. Results Compared with the N group, the M group rats had showed significant damage in prostate gland structure and infiltration of inflammatory cells. Compared with group N, the expression of TLR4, P?NF-κB P65, NLRP3, ASC, Cleaced?Caspase-1, Cleaced?IL?1β, and IL?18 proteins in the prostate tissue of group M rats had increased(P < 0.01). Compared with group M, the expression of TLR4, P?NF-κB P65, NLRP3, ASC, Cleaced?Caspase-1, Cleaced?IL?1β, and IL?18 proteins in the NLRP3 and Caspase?1 groups had significantly reduced(P < 0.01). The serum levels of IL?1 β, IL?6, IL?8, IL?17A, IL?18, IFN?γ, and TNF?α in group M rats had been significantly higher than those in group N(P < 0.01). But the serum levels of IL?10 had been slightly lower and no statistical significance. The serum levels of IL?1β, IL?6, IL?8, IL?17A, IL?18, IFN?γ, and TNF?α in group M rats had been lower than those in group N(P < 0.01 or P < 0.05), the serum IL?10 level had increased(P < 0.01). Conclusion The activation of TLR4/NF-κB-NLRP3 inflammasome signaling pathway promotes the occurrence and development of prostatitis in EAP rats.

Key words: chronic prostatitis, chronic pelvic pain syndrome, NLRP3 inflammasome, TLR4/NF-κB-NLRP3 inflammasome signaling pathway, inflammatory factor

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