多种方法揭示了ImKC细胞是RAW 264.7衍生物而不是库普弗细胞系
1National Collection of Authenticated Cell Cultures, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China.
概括
作为小鼠库弗弗细胞模型使用的ImKC细胞系实际上是RAW 264.7细胞的衍生物,而不是独特的小鼠细胞系. 这种错误识别突出了研究中非人类细胞系认证的问题.
科学领域:
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
- 临床前研究 临床前研究
背景情况:
- 不朽化的细胞系对于生命科学和临床前研究至关重要.
- 错误的细胞系识别,交叉污染和错误的标签导致了不可靠的研究结果.
- 错误识别非人类细胞系,如小鼠细胞,是科学文献中经常出现的问题.
研究的目的:
- 为了调查ImKC细胞系的身份,经常被用作小鼠库弗弗细胞模型.
- 为了确定ImKC细胞是不同的小鼠细胞系还是错误识别的细胞系.
- 防止在研究中继续使用可能有问题的细胞系.
主要方法:
- 短串重复 (STR) 分析以评估遗传身份.
- 聚合酶连锁反应 (PCR) 和西部涂抹,以评估SV40的转化状态.
主要成果:
- STR分析证实ImKC细胞系是RAW 264.7细胞系的衍生物.
- 通过PCR和西部抹杀试验表明,ImKC细胞没有SV40转化.
- 识别并列出了使用ImKC细胞系的出版物.
结论:
- ImKC细胞系不是一只独特的小鼠库弗尔细胞系,而是一个被误认的RAW 264.7细胞系.
- 这一发现强调了需要严格的细胞系认证的必要性,特别是对于非人类细胞系.
- 研究人员应该意识到这种错误识别,以避免在未来的研究中使用ImKC细胞.
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