相关实验视频
Updated: Aug 6, 2026
07:44
Monitoring Cancer Cell Invasion and T-Cell Cytotoxicity in 3D Culture
Published on: June 23, 2020
概括
本研究汇编了关于细胞系污染的参考资料,详细介绍了HeLa和其他人类细胞系交叉污染问题. 它强调了常见的污染物和简单的检测方法,以确保细胞培养物的纯度.
科学领域:
- 细胞生物学 细胞生物学
- 微生物学 微生物学
- 遗传学 是一个遗传学.
背景情况:
- 细胞系污染是生物研究中的一个重要问题.
- 在人类细胞系中,HeLa细胞是交叉污染的常见来源.
- 错误识别和交叉污染可能会损害实验结果.
研究的目的:
- 提供关于细胞系污染的综合性出版物清单.
- 描述已知的HeLa菌株和其他人类细胞系的特征.
- 确定交叉污染的来源和检测方法.
主要方法:
- 关于细胞特性和污染的出版物的文献综述.
- 污染类型的分类:HeLa,非HeLa人类和物种间.
- 汇编了有关细胞检测技术的参考资料.
主要成果:
- 识别和目录了已知的HeLa菌株和人类细胞系.
- 有记录的人类细胞系被HeLa或其他人体细胞污染的案例.
- 报告的细胞系被非人类物种污染的病例.
- 引用了各种交叉污染事件的频率.
- 引用了检测细胞污染的简单技术.
结论:
- 细胞系交叉污染是普遍和多样化的.
- 精确的细胞系表征和常规查是必不可少的.
- 简单的检测方法可以帮助维持细胞培养的完整性.
相关概念视频
01:21Cell Culture
Most vertebrate cells grow in vitro attached to a substrate as a monolayer, called adherent cultures. The flasks and plates used to grow cells are chemically treated to facilitate cell attachment. However, a few cell types, such as hematopoietic cells, can grow in a suspension. In contrast to adherent cultures, suspension cultures can grow in non-treated cultureware using magnetic stirrers or spinner flasks to agitate the culture media
01:16Cell Lines
A cell line is a population of cells grown in vitro that can be subcultured over several generations. Normal cells cease to divide after a certain number of cell divisions, a process known as replicative senescence. This number, called the Hayflick limit, was conceptualized by Leonard Hayflick in 1961 when he observed that fetal cells grown in culture could only divide 40-60 times. This limit is due to the shortening of the telomeres during each round of cell division, preventing cell division...