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重庆医科大学附属第一医院内分泌科,重庆,400016
纸质出版日期:2018,
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张林坤, 胡人之, 彭川, 等. Pyrin在巨噬细胞M1型极化中的作用研究[J]. 重庆医科大学学报, 2018,43(6):745.
Zhang Linkun, Hu Renzhi, Peng Chuan, et al. Role of Pyrin in macrophage M1 polarization[J]. Journal of Chongqing Medical University, 2018,43(6):745.
目的:探讨Pyrin在巨噬细胞M1型极化中的作用。方法:培养人单核细胞株THP-1细胞,提取人外周血单核细胞(peripheral blood mononuclear cell,PBMC)、小鼠骨髓来源巨噬细胞(bone marrow-derived macrophage,BMDM)。随机分为对照组和实验组,实验组用脂多糖(lipopolysaccharide,LPS,100 ng/mL)复合干扰素-γ(interferon-γ,IFN-γ,20 ng/mL)干预(THP-1 18 h,PBMC、BMDM 24 h)构建巨噬细胞M1型极化模型。qRT-PCR、Western blot和流式细胞术检测2组M1型极化相关标志物,同时利用qRT-PCR和Western blot检测MEFV基因和Pyrin蛋白表达水平。结果:与对照组相比,实验组在LPS+IFN-γ刺激后,qRT-PCR检测THP-1细胞M1型极化标志物:肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)(t=-4.360,P=0.007)、白细胞介素-1β(interleukin-1β,IL-1β)(t=-8.329,P=0.000)、白细胞介素-6(interleukin-6,IL-6)(t=-2.924,P=0.033)、CD14(t=-2.858,P=0.035)、CD80(t=-3.433,P=0.019),PBMC细胞M1型极化标志物:TNF-α(t=-2.893,P=0.034)、IL-1β(t=-3.606,P=0.015)、IL-6(t=-2.895,P=0.034)、CD14(t=-2.645,P=0.046)、CD80(t=-3.648,P=0.015),BMDM细胞M1型极化标志物:TNF-α(t=-6.123,P=0.002)、IL-1β(t=-2.697,P=0.043)、单核细胞趋化蛋白-1(monocyte chemotactic protein 1,MCP-1)(t=-4.335,P=0.007)、诱导型一氧化氮合酶(inducible nitric oxide synthase,iNOS)(t=-3.607,P=0.015)均明显增加,Western blot检测THP-1细胞M1型极化标志物:TNF-α(t=-3.827,P=0.031)、IL-1β(t=-4.189,P=0.025)、IL-6(t=-5.345,P=0.002)均明显增加,流式细胞术检测THP-1细胞M1型极化标志物HLA-DR(t=-3.270,P=0.017)、BMDM细胞M1型极化标志物F4/80+CD11c+(t=-3.833,P=0.009)均明显增加,提示M1型极化模型构建成功;在构建成功的M1型极化模型中,qRT-PCR检测THP-1细胞、PBMC细胞和BMDM细胞MEFV基因表达水平较对照组明显增加(t=-3.226,P=0.023;t=-2.989,P=0.030;t=-2.891,P=0.034),Western blot检测THP-1细胞Pyrin蛋白表达水平较对照组明显增加(t=-8.591,P=0.000)。结论:巨噬细胞M1型极化中Pyrin表达增加,Pyrin可能与巨噬细胞M1型极化相关。
Objective:To investigate the role of Pyrin in macrophage M1 polarization. Methods:THP-1 cells were cultured and periph-eral blood mononuclear cell(PBMC),bone marrow-derived macrophage(BMDM) were extracted. These three kinds of cells were ran-domly divided into control group and treatment group. Treatment group was treated with lipopolysaccharide(LPS,100 ng/mL) and in-terferon-γ(IFN-γ,20 ng/mL) to construct macrophage M1 polarization models(THP-1 for 18 h,PBMC and BMDM for 24 h). qRT-PCR,Western blot and flow cytometry(FCM) were used to test the markers of M1 polarization,qRT-PCR and Western blot were used to test the expression of MEFV and Pyrin. Results:Compared with those of control group,qRT-PCR detection of THP-1-M1 polarization markers:TNF-α(t=-4.360,P=0.007),IL-1β(t=-8.329,P=0.000),IL-6(t=-2.924,P=0.033),CD14(t=-2.858,P=0.035),CD80(t=-3.433,P=0.019) and Western blot detection of THP-1-M1 polarization markers:TNF-α(t= -3.827,P=0.031),IL-1β(t=-4.189,P=0.025),IL-6(t=-5.345,P=0.002) were significantly increased after the treatment with LPS and IFN-γ. The mRNA levels of TNF-α(t=-2.893,P=0.034),IL-1β(t=-3.606,P=0.015),IL-6(t=-2.895,P=0.034),CD14(t=-2.645,P=0.046),CD80(t=-3.648,P=0.015) of PBMC-M1 polarization markers and the mRNA levels of TNF-α(t=-6.123,P=0.002),IL-1β(t=-2.697,P=0.043),MCP-1(t=-4.335,P=0.007),iNOS(t=-3.607,P=0.015) of BMDM-M1 polarization markers were signifi-cant higher after the treatment with LPS and IFN-γ. Treatment group displayed higher positive cells of THP-1-M1 polarization marker HLA-DR(t=-3.270,P=0.017) and BMDM-M1 polarization marker F4/80+CD11c+(t=-3.833,P=0.009) than control group. These results suggested that the M1 polarization models were constructed successfully. In these three M1 polarization models,qRT-PCR and Western blot detection of MEFV(t=-3.226,P=0.023) and Pyrin(t=-8.591,P=0.000) of THP-1-M1 macrophages were significantly increased. The mRNA level of MEFV of PBMC-M1 macrphages(t=-2.989,P=0.030) and BMDM-M1 macrophages(t=-2.891,P=0.034) were significant higher than control group. Conclusion:The expressions of Pyrin increase in macrophage M1 polariza-tion;Pyrin maybe related to macrophage M1 polarization.
Pyrin巨噬细胞M1型极化
PyrinmacrophageM1 polarization
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