相关实验视频
Updated: Feb 24, 2026

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A Spheroid Killing Assay by CAR T Cells
Published on: December 12, 2018
17.3K
概括
化学抗原受体T细胞 (CAR-T) 疗法通过向Desmoglein 2 (DSG2) 对固体瘤具有前景. 针对DSG2的CAR-T细胞在体内有效地消除了各种固体瘤,在临床前模型中没有观察到毒性.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 细胞疗法 细胞疗法
背景情况:
- 卡特-T细胞疗法对血液癌症有效,但由于缺乏特定的点,在固体瘤中面临挑战.
- 表皮癌往往过度表达细胞表面蛋白质,而这些蛋白质在健康组织中没有,从而成为潜在的治疗点.
- 德斯莫格林2 (DSG2) 是一种在许多上皮癌中过度表达的跨膜蛋白,其正常表达仅限于细胞结点.
研究的目的:
- 开发和评估DSG2导向的CAR-T细胞以向上皮质衍生的固体瘤.
- 在各种固体癌症的临床前模型中评估针对DSG2的CAR-T细胞的安全性和有效性.
- 探索DSG2作为一种新的结节受限抗原,用于固体瘤免疫疗法.
主要方法:
- 产生特定于DSG2的CAR-T细胞 (αDSG2).
- 在体外测试αDSG2 CAR-T细胞与多种固体瘤细胞系.
- 在小鼠模型中使用患者衍生的和细胞衍生的固体瘤进行体内疗效研究.
- 在表达人类DSG2的转基因小鼠中进行毒性评估2.
主要成果:
- αDSG2 CAR-T细胞在实验室中表现出各种固体瘤细胞系的普遍识别和溶解.
- 在体内显著消除结肠,胰腺,肺,前列腺,乳腺和肝脏瘤.
- 在接受αDSG2 CAR-T细胞的转基因小鼠中没有观察到毒性,这表明了有利的安全性.
- 证实DSG2是固体瘤治疗的安全有效标.
结论:
- 针对DSG2的CAR-T细胞表现出强大而安全的抗瘤活性,对抗广泛的固体瘤.
- 准像DSG2这样的结节限制抗原是固体瘤免疫疗法的有希望的策略.
- 这种方法为克服目前在固体恶性瘤中CAR-T细胞疗法的局限性提供了一个新的治疗途径.
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