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GRIM-19 Ameliorates Multiple Sclerosis in a Mouse Model of Experimental Autoimmune Encephalomyelitis with Reciprocal Regulation of IFNγ/Th1 and IL-17A/Th17 Cells
Immune Network ( IF 6 ) Pub Date : 2020-01-01 , DOI: 10.4110/in.2020.20.e40
Jeonghyeon Moon 1, 2 , Seung Hoon Lee 3 , Seon-yeong Lee 3 , Jaeyoon Ryu 3 , Jooyeon Jhun 3 , JeongWon Choi 3 , Gyoung Nyun Kim 4 , Sangho Roh 2 , Sung-Hwan Park 5 , Mi-La Cho 1, 3, 6
Affiliation  

The protein encoded by the Gene Associated with Retinoid-Interferon-Induced Mortality-19 (GRIM-19) is located in the mitochondrial inner membrane and is homologous to the NADH dehydrogenase 1-alpha subcomplex subunit 13 of the electron transport chain. Multiple sclerosis (MS) is a demyelinating disease that damages the brain and spinal cord. Although both the cause and mechanism of MS progression remain unclear, it is accepted that an immune disorder is involved. We explored whether GRIM-19 ameliorated MS by increasing the levels of inflammatory cytokines and immune cells; we used a mouse model of experimental autoimmune encephalomyelitis (EAE) to this end. Six-to-eight-week-old male C57BL/6, IFNγ-knockout (KO), and GRIM-19 transgenic mice were used; EAE was induced in all strains. A GRIM-19 overexpression vector (GRIM19 OVN) was electrophoretically injected intravenously. The levels of Th1 and Th17 cells were measured via flow cytometry, immunofluorescence, and immunohistochemical analysis. IL-17A and IFNγ expression levels were assessed via ELISA and quantitative PCR. IL-17A expression decreased and IFNγ expression increased in EAE mice that received injections of the GRIM19 OVN. GRIM-19 transgenic mice expressed more IFNγ than did wild-type mice; this inhibited EAE development. However, the effect of GRIM-19 overexpression on the EAE of IFNγ-KO mice did not differ from that of the empty vector. GRIM-19 expression was therapeutic for EAE mice, elevating the IFNγ level. GRIM-19 regulated the Th17/Treg cell balance.

中文翻译:

GRIM-19 通过 IFNγ/Th1 和 IL-17A/Th17 细胞的相互调节改善实验性自身免疫性脑脊髓炎小鼠模型中的多发性硬化症

由 Retinoid-Interferon-Induced Mortality-19 (GRIM-19) 相关基因编码的蛋白质位于线粒体内膜中,与电子传递链的 NADH 脱氢酶 1-α 亚复合体亚基 13 同源。多发性硬化症 (MS) 是一种损害大脑和脊髓的脱髓鞘疾病。尽管 MS 进展的原因和机制尚不清楚,但公认涉及免疫疾病。我们探讨了 GRIM-19 是否通过增加炎症细胞因子和免疫细胞的水平来改善 MS;为此,我们使用了实验性自身免疫性脑脊髓炎 (EAE) 的小鼠模型。使用六至八周大的雄性 C57BL/6、IFNγ 基因敲除 (KO) 和 GRIM-19 转基因小鼠;在所有菌株中都诱导了 EAE。GRIM-19 过表达载体 (GRIM19 OVN) 被静脉内电泳注射。通过流式细胞术、免疫荧光和免疫组织化学分析测量 Th1 和 Th17 细胞的水平。通过ELISA和定量PCR评估IL-17A和IFNγ表达水平。在接受 GRIM19 OVN 注射的 EAE 小鼠中,IL-17A 表达降低而 IFNγ 表达增加。GRIM-19 转基因小鼠比野生型小鼠表达更多的 IFNγ;这抑制了 EAE 的发展。然而,GRIM-19 过表达对 IFNγ-KO 小鼠 EAE 的影响与空载体的影响没有区别。GRIM-19 表达对 EAE 小鼠具有治疗作用,可提高 IFNγ 水平。GRIM-19 调节 Th17/Treg 细胞平衡。免疫荧光和免疫组织化学分析。通过ELISA和定量PCR评估IL-17A和IFNγ表达水平。在接受 GRIM19 OVN 注射的 EAE 小鼠中,IL-17A 表达降低而 IFNγ 表达增加。GRIM-19 转基因小鼠比野生型小鼠表达更多的 IFNγ;这抑制了 EAE 的发展。然而,GRIM-19 过表达对 IFNγ-KO 小鼠 EAE 的影响与空载体的影响没有区别。GRIM-19 表达对 EAE 小鼠具有治疗作用,可提高 IFNγ 水平。GRIM-19 调节 Th17/Treg 细胞平衡。免疫荧光和免疫组织化学分析。通过ELISA和定量PCR评估IL-17A和IFNγ表达水平。在接受 GRIM19 OVN 注射的 EAE 小鼠中,IL-17A 表达降低而 IFNγ 表达增加。GRIM-19 转基因小鼠比野生型小鼠表达更多的 IFNγ;这抑制了 EAE 的发展。然而,GRIM-19 过表达对 IFNγ-KO 小鼠 EAE 的影响与空载体的影响没有区别。GRIM-19 表达对 EAE 小鼠具有治疗作用,可提高 IFNγ 水平。GRIM-19 调节 Th17/Treg 细胞平衡。GRIM-19 转基因小鼠比野生型小鼠表达更多的 IFNγ;这抑制了 EAE 的发展。然而,GRIM-19 过表达对 IFNγ-KO 小鼠 EAE 的影响与空载体的影响没有区别。GRIM-19 表达对 EAE 小鼠具有治疗作用,可提高 IFNγ 水平。GRIM-19 调节 Th17/Treg 细胞平衡。GRIM-19 转基因小鼠比野生型小鼠表达更多的 IFNγ;这抑制了 EAE 的发展。然而,GRIM-19 过表达对 IFNγ-KO 小鼠 EAE 的影响与空载体的影响没有区别。GRIM-19 表达对 EAE 小鼠具有治疗作用,可提高 IFNγ 水平。GRIM-19 调节 Th17/Treg 细胞平衡。
更新日期:2020-01-01
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