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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Selection of Biomarkers by Linear Discriminant Analysis Effect Size (LEfSe) in Microbiome Data (10.3791/61715) has been retracted by the journal upon the authors' request due to a conflict regarding the data and methodology.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:Yu, D. et al.小鼠模型中治疗性干细胞鼻内递送至胶质母细胞瘤。J. Vis. Exp.(2017 年)
该视频演示了将溶瘤病毒负载的治疗性神经干细胞鼻内递送到携带脑瘤的小鼠模型中。干细胞的无创鼻内给药绕过了血脑屏障,促进了它们被输送到大脑中的肿瘤部位以进行治疗应用。
所有涉及动物模型的程序均已由当地机构动物护理委员会和 JoVE 兽医审查委员会审查。
1. 人 NSC 的缺氧预处理(图 1A)
2. 溶瘤病毒对人 NSC 的负载(图 1B-1H)
3. 治疗性 NSC 的鼻内递送(图 1D 和图 2D)

图 1:鼻内给药前涉及的一般干细胞制备程序的流程图。(A-C)干细胞的缺氧预处理或基因修饰以过表达 CXCR4。(B-D)进行洗涤、酶解离、细胞收集和计数步骤,以便随后用治疗或诊断货物加载干细胞。(E) 治疗试剂,如溶瘤病毒,或诊断示踪剂,如 MPIO 颗粒,可以通过定期摇晃和温和搅拌 (F) 以适当浓度加载到收集的干细胞中。(G-I)然后可以洗涤加载的干细胞并计数以鼻内递送到小鼠体内。

图 2:涉及的一般动物程序的示意图流程图。(A) 通过患者来源的神经胶质瘤细胞的异种移植创建肿瘤模型。(B) 通过 BLI 监测肿瘤生长。(C) 仅进行头部照射治疗 (D) 在治疗性鼻内干细胞输送期间保持仰卧和头部倾斜姿势。(E) 必要时跟进治疗后生存监测、小动物成像和组织学分析。