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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Selection of Biomarkers by Linear Discriminant Analysis Effect Size (LEfSe) in Microbiome Data (10.3791/61715) has been retracted by the journal upon the authors' request due to a conflict regarding the data and methodology.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:Wadosky, KM 等人 从前列腺癌的基因工程小鼠模型中生成肿瘤类器官。J. Vis. Exp.(2019 年)。
来源于肿瘤的类器官是一种能够维持肿瘤病理特征和器官特异性细胞谱系的 3D 细胞培养模型。在示例方案中,我们将看到科学家从基因工程小鼠模型中从前列腺肿瘤中生成类器官。
此处描述的动物程序是在纽约州布法罗罗斯威尔公园综合癌症中心实验动物资源部的机构动物护理和使用委员会 (IACUC) 的批准下进行的。
注意:要解剖的雄性小鼠以分离前列腺或前列腺肿瘤以产生类器官,至少应达到性成熟的年龄——大约 8-10 周大。小鼠的具体年龄可能因研究而异。选择年龄时要考虑的一些因素包括前列腺细胞群的年龄依赖性变化、特定启动子驱动的 Cre 转基因的年龄依赖性表达以及特定 GEMM 中前列腺肿瘤的进展速度。
注:图 1 显示了肿瘤类器官生成过程的图形描述。
1. 准备工作
2. 肿瘤组织的切碎和消化
3. 在基质中计数和重悬
4. 电镀矩阵圆顶与介质应用

图 1:生成前列腺肿瘤类器官的方案流程图。解剖前列腺肿瘤后,将组织切成 1 毫米的小块。在胶原酶中消化肿瘤碎片,收集细胞,并在胰蛋白酶中消化以获得单细胞悬液。细胞计数后,重悬于 1.0 x 106 个细胞/mL 细胞浓度所需的基质体积中。使用逐滴方法在培养皿中板圆顶。请点击这里查看此图的较大版本。