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首页> 外文期刊>Laboratory Animal Science >PROTECTIVE EFFECTS OF MACROPHAGE-DERIVED INTERFERON AGAINST ENCEPHALOMYOCARDITIS VIRUS-INDUCED DIABETES MELLITUS IN MICE
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PROTECTIVE EFFECTS OF MACROPHAGE-DERIVED INTERFERON AGAINST ENCEPHALOMYOCARDITIS VIRUS-INDUCED DIABETES MELLITUS IN MICE

机译:巨噬细胞源性干扰素对小鼠脑脊髓炎病毒诱发的糖尿病的预防作用

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The involvement of macrophages in protection against diabetes mellitus in mice of BALB/c (susceptible) and C57BL (resistant) strains infected with the B (non-diabetogenic) or D (highly diabetogenic) variant of encephalomyocarditis (EMC) virus was examined. Pretreatment with the B variant of EMC virus (EMC-B), avirulent interferon (IFN) inducer, or Corynebacterium parvum inhibited diabetes in BALB/c mice infected with the D variant of EMC virus (EMC-D). Treatment of C57BL mice with carrageenan to compromise macrophage function rendered C57BL mice susceptible to EMC-D-induced diabetes. In macrophage culture from BALB/c mice, EMC-B induced IFN at an earlier stage than did EMC-D. The C57BL mouse-derived macrophages produced more IFN than did BALB/c mouse-derived macrophages after stimulation with EMC-D. Moreover, C. parvum increased IFN production in macrophage cultures from BALB/c mice, whereas carrageenan inhibited that in macrophage cultures from C57BL mice. These results suggest that IFN derived from macrophages may have an important role in protecting mice against EMC virus infection.
机译:检查了巨噬细胞在感染了脑心肌炎(EMC)病毒B(非糖尿病)或D(高糖尿病)的BALB / c(易感)和C57BL(抗性)菌株的小鼠中预防糖尿病的作用。在感染了EMC病毒(EMC-D)的BALB / c小鼠中,用EMC病毒(EMC-B)的B变体,无毒干扰素(IFN)诱导剂或小小棒状杆菌进行的预处理可以抑制糖尿病。用角叉菜胶处理C57BL小鼠以损害巨噬细胞功能使C57BL小鼠易患EMC-D诱导的糖尿病。在来自BALB / c小鼠的巨噬细胞培养中,EMC-B诱导的IFN比EMC-D更早。在用EMC-D刺激后,C57BL小鼠衍生的巨噬细胞比BALB / c小鼠衍生的巨噬细胞产生更多的IFN。此外,细小衣原体增加了来自BALB / c小鼠的巨噬细胞培养物中的IFN产生,而角叉菜胶抑制了来自C57BL小鼠的巨噬细胞培养物中的IFN产生。这些结果表明,源自巨噬细胞的干扰素可能在保护小鼠免受EMC病毒感染方面具有重要作用。

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