我对“黑胶虫”的认识
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1995
对于养细胞的人来说,“黑胶虫”、小黑点经常出现在我们的耳边或细胞中,每个人对于黑胶虫的认识都观点不一,现在仍存在许多争议。如今见于各大论坛的帖子也久未更新,我就自己养细胞过程中对“黑胶虫”的认识做一个总结,不足之处欢迎拍砖!
刚开始养细胞的时候,经常碰到有一些小黑点,有人认为是细胞死亡后裂解的碎片,有人认为是支原体污染,有人认为是黑胶虫。首先有没有黑胶虫呢?附件中有黑胶虫视频,大家可以看一下,养的很好!据我观察,的确黑胶虫刚开始会使细胞形成许多空泡和碎片,并形成许多小黑点,主要呈布朗运动,这个时候比较难鉴定,但是如果在高倍镜下观察到呈视频中直线运动的虫子,那必定是黑胶虫无疑!
如果你的细胞有保种过,建议重新复苏,放弃治疗!如果是原代培养的细胞或比较珍贵的情况下,需要抢救怎么办?双抗是没有用的,本人尝试过“环丙沙星+哌拉西林”,亲测可用!另外一位战友也有提到,一并贴在这里http://www.dxy.cn/bbs/topic/25761395?keywords=%E9%BB%91%E8%83%B6%E8%99%AB
以上药物主要参考以下文献 Gray, Jennifer Sue, Janette Marie Birmingham, and Jenifer Imig Fenton. "Got black swimming dots in your cell culture? Identification of Achromobacter as a novel cell culture contaminant." Biologicals 38.2 (2010): 273-277.),该研究认为黑胶虫是无色杆菌属(Achromobacter),维基百科对该种细菌的介绍贴在这里(链接 https://en.wikipedia.org/wiki/Achromobacter):
Achromobacter is a genus of bacteria, included in the family Alcaligenaceae in the order Burkholderiales. The cells are Gram-negative straight rods and are motile by using one to 20 peritrichous flagella. They are strictly aerobic and are found in water (fresh and marine) and soils.[1] They have also been identified as a contaminant in laboratory cell cultures.[2] They have been identified as opportunistic human pathogens in people with certain immunosuppressiveconditions such as cystic fibrosis, cancer and kidney failure.[3]