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南京医科大学学报(自然科学版)                                  第41卷第7期
               ·970 ·                     Journal of Nanjing Medical University(Natural Sciences)   2021年7月


             ·基础医学·

              TLR/NF⁃κB 信号通路在甲基苯丙胺诱导的原代小胶质细胞炎

              性反应中的作用



              肖   逸 ,王胜婵 ,王易欣 ,臧松松 ,张               炜  1*
                                              4
                     1,2
                              3
                                      4
               南京医科大学第一附属医院泌尿外科,江苏                南京    210029;南京医科大学附属逸夫医院泌尿外科,江苏                 南京   211100;
              1                                               2
                                                                 4
              3  南京医科大学附属老年医院泌尿外科,江苏                 南京    210024;南京医科大学公共卫生学院卫生毒理系,江苏                     南京
              211166

             [摘    要] 目的:探讨Toll样受体(Toll like receptor,TLR)/核因子(nuclear factor,NF)⁃κB信号通路在甲基苯丙胺(methamphet⁃
              amine,METH)引起原代小胶质细胞激活及炎性因子释放的作用。方法:分离培养原代小胶质细胞,免疫荧光法鉴定原代小胶
              质细胞纯度。细胞予METH(300 μmol/L)染毒0 min、15 min、30 min、1 h、3 h、6 h、12 h和24 h,蛋白免疫印迹检测原代小胶质细
              胞的激活情况及其NF⁃κB通路激活情况,real⁃time PCR检测炎性因子[肿瘤坏死因子⁃α(tumor necrosis factor⁃ α,TNF⁃α)、白介
              素⁃1β(interleukin⁃1β,IL⁃1β)、白介素⁃6(interleukin⁃6,IL⁃6)]和TLR1~9、11 mRNA的表达。结果:分离出的原代小胶质细胞纯
              度达到95%以上。METH暴露后原代小胶质细胞激活,其激活标志物IBA⁃1水平增高,NF⁃κB通路被激活,炎性因子(TNF⁃α、IL
              ⁃1β、IL⁃6)和 TLR2、4~5、7~9、11 的 mRNA 水平明显升高,TLR1 的 mRNA 水平明显降低,差异具有统计学意义(P < 0.05)。结
              论:METH可通过调节TLR/NF⁃κB信号通路激活原代小胶质细胞并促进其释放炎性因子,因而TLR可作为METH神经炎性反
              应干预的潜在靶点,具有一定的治疗意义。
             [关键词] 甲基苯丙胺;原代小胶质细胞;TLR/NF⁃κB信号通路
             [中图分类号] R114                     [文献标志码] A                        [文章编号] 1007⁃4368(2021)07⁃970⁃06
              doi:10.7655/NYDXBNS20210706


              Role of TLR/NF ⁃ κB signaling pathway in methamphetamine ⁃ induced primary microglial
              inflammation

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              XIAO Yi ,WANG Shengchan ,WANG Yixin ,ZANG Songsong ,ZHANG Wei     1*
                                                                                                  2
              1 Department of Urology,the First Affiliated Hospital of Nanjing Medical University,Nanjing 210029;Department of
              Urology,Sir Run Run Hospital,Nanjing Medical University,Nanjing 211100;Department of Urology,Geriatric
                                                                                  3
              Hospital of Nanjing Medical University,Nanjing 210024;Department of Toxicology,School of Public Health,
                                                                 4
              Nanjing Medical University,Nanjing 211166,China
             [Abstract] Objective:To investigate the role of Toll⁃like receptor(TLR)/NF⁃κB signaling pathway in methamphetamine(METH)⁃
              induced primary microglial activation and inflammatory reaction. Methods:Primary microglial cells were isolated and cultured,then
              the purity of primary microglia was detected by immunofluorescence. Cells were treated with METH(300 μmol/L)for 0 min,15 min,
              30 min,1 h,3 h,6 h,12 h,and 24 h,and the activations of primary microglia and NF⁃κB pathway were detected by Western blot. The
              inflammatory factors(TNF⁃α,IL⁃1β,and IL⁃6)and TLR1⁃9,11 mRNA levels were detected by real⁃time PCR. Results:The purity of
              primary microglial cells was above 95%. After exposure to METH,the primary microglia activation marker IBA⁃1 was increased and
              the NF⁃κB pathway was activated. In addition,the mRNA levels of inflammatory factors(TNF⁃α,IL⁃1β,IL⁃6)and TLR2,4⁃5,7⁃9,11
              were significantly increased(P < 0.05),while the level of TLR1 mRNA was significantly reduced. Conclusion:METH can activate
              primary microglial cells and promote the release of inflammatory factors by regulating the TLR/NF⁃κB signaling pathway. Therefore,
              TLR can be potential targets for METH neuritis response intervention with certain therapeutic significance.
             [Key words] methamphetamine;primary microglia;TLR/NF⁃κB signaling pathway
                                                                            [J Nanjing Med Univ,2021,41(07):970⁃975]
             [基金项目] 国家自然科学基金(81673213)
              ∗
              通信作者(Corresponding author),E⁃mail:jsphzhangwei@163.com
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