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Research Article
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Erratum Notice
Important: There has been an erratum issued for this article. View Erratum Notice
Retraction Notice
The article Assisted Selection of Biomarkers by Linear Discriminant Analysis Effect Size (LEfSe) in Microbiome Data (10.3791/61715) has been retracted by the journal upon the authors' request due to a conflict regarding the data and methodology. View Retraction Notice
来源:Ali, M. Y et al., 从手术组织中分离原代人结肠肿瘤细胞并将其直接在柔软的弹性基质上培养用于牵引细胞术。J. Vis. Exp. (2015)
该视频介绍了研究原代人结肠癌细胞中的细胞骨架和黏着斑的技术,以了解其根据基质刚度的变化。这种在软质和硬质基质上培养癌细胞的这种方式允许对癌症预后进行各种下游生物物理测量。
1. 免疫荧光显微镜检测

图 1.F-肌动蛋白和黏着斑蛋白在软凝胶和硬聚苯乙烯基材上的免疫荧光染色。在软 2 kPa 凝胶上,扩散较少的 (A1) 肿瘤细胞或 (A2) 正常细胞中不存在肌动蛋白纤维。然而,含点状黏着斑的黏着斑存在于软胶囊 (B1-B2) 上。相反,原代细胞在刚性聚苯乙烯基材上表现出分布良好的形态、明确的肌动蛋白应力纤维 (C1-C2) 和离散的细长粘附着斑 (D1-D2)。