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Vitamin E suppresses the development of murine aids through the inhibitionof nuclear factor-kappa B expression

机译:维生素E通过抑制核因子-κB表达来抑制鼠科动物的发育

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We investigated the mechanisms of the inhibitory effect of vitamin E (VE; D-alpha-tocopherol acetate) on the development of LP-BM5 retrovirus-induced murine AIDS in comparison with azidothymidine (AZT). Both high VE diet and AZT treatment significantly inhibited the increase of spleen weight following the development of murine AIDS, which effect was greater in AZT than high VE diet. The increased levels of lipid peroxide in splenocytes of infected mice were restored by high VE diet or AZT treatment. In addition, decreased production of interferon-gamma (INF-gamma) and increased production of tumor necrosis factor-alpha (TNF-alpha) from splenocytes were also improved by high VE diet and AZT treatment. In splenic lymphocytes of infected mice, the expression of nuclear factor-kappa B (NF-kappa B) was strongly inhibited in both cyloplasm and nucleus by high VE diet, whereas AZT treatment had almost no effect. Furthermore, the expression of NF-kappa B in the nucleus of splenic lymphocytes was inhibited by in vitro treatment with VE, but enhanced by AZT treatment. These results suggest that VE inhibits the development of murine AIDS through the inhibition of NF-kappa B expression, which mechanism was different from AZT.
机译:我们调查了与叠氮胸苷(AZT)相比,维生素E(VE;D-α-生育酚乙酸酯)对LP-BM5逆转录病毒诱导的鼠类艾滋病的抑制作用的机制。高VE饮食和AZT治疗均显着抑制了鼠类爱滋病发展后脾脏重量的增加,在AZT中的作用大于高VE饮食。通过高VE饮食或AZT治疗,可以恢复感染小鼠脾细胞中脂质过氧化物水平的增加。此外,高VE饮食和AZT治疗还改善了脾细胞中干扰素-γ(INF-γ)产生的减少和肿瘤坏死因子-α(TNF-α)的产生的增加。在感染小鼠的脾脏淋巴细胞中,高VE饮食强烈地抑制了细胞质和细胞核中核因子-κB(NF-κB)的表达,而AZT治疗几乎没有作用。此外,VE体外处理可抑制脾淋巴细胞核中NF-κB的表达,而AZT处理可增强NF-κB的表达。这些结果表明VE通过抑制NF-κB的表达而抑制了小鼠艾滋病的发生,其机制不同于AZT。

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