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当前位置:科技 > 科学博览 > 生命科学 > 正文
透过显微镜看八种病原体:爆发中的新流感(4)
2009-06-15 09:28:31 中华网论坛 发表评论
    

    4.嗜中性粒细胞来袭时的微细胞之战

透过显微镜看八种病原体:爆发中的新流感

嗜中性粒细胞来袭时的微细胞之战

    经常生长在长链上的球状细菌——化脓性链球菌(streptococcus pyogenes)除了能引发脓疱病等较轻感染外,还能引起链球菌中毒性休克综合征(streptococcal toxic shock syndrome)等致命疾病。这种细胞拥有很多防卫机制,即已知的毒性因素,这使得它们能逃过免疫系统的“法眼”,通过组织进行扩散。这张图片显示的是人类嗜中性粒细胞正在通过嗜菌作用,吞噬化脓性链球菌。白细胞是人体的第一道安全防线,嗜中性粒细胞属于白细胞。



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