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中华绒螯蟹螺原体对中华绒螯蟹和raw264.7细胞免疫反应研究

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Keywords: 中华绒螯蟹,raw264.7细胞,螺原体,免疫反应

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Abstract:

中华绒螯蟹螺原体是一种引起中华绒螯蟹颤抖病的新型病原微生物,对中华绒螯蟹养殖业造成了很大的损失.虽然很多无脊椎动物免疫反应的研究已经报道,但是螺原体引起宿主免疫反应的研究目前还未见报道.中华绒螯蟹螺原体既可以感染中华绒螯蟹,也可以感染乳鼠.本文在动物个体水平上研究了中华绒螯蟹螺原体与中华绒螯蟹的免疫关系,中华绒螯蟹经螺原体刺激后,其体内抗脂多糖因子、酚氧化酶原、酚氧化酶原激活因子、消极素轻链等基因的mrna的表达水平显著上升,而抗氧化蛋白prx6的表达量显著下降.本文还在细胞水平研究了中华绒螯蟹螺原体与小鼠巨噬细胞之间的免疫关系,中华绒螯蟹螺原体刺激后,细胞中cd40、il-1β、il-10基因的mrna表达量显著下降,而tgf-β1和tnf-α等基因的表达量上升.本实验结果说明螺原体可以引起寄主很广泛的免疫反应.

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