测量T细胞/CAR T细胞旁观者瘤杀死在体外和体内
Matthew J Lin1, Daniel Charytonowicz2, Joshua Brody3
1Division of Hematology and Medical Oncology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Medical Scientist Training Program, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
瘤细胞可以通过失去向抗原来逃避T细胞免疫疗法. 这项研究探讨了"旁观者杀戮",其中T细胞间接消除抗原阴性瘤细胞,提供克服治疗耐药性的策略.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 癌症治疗 癌症治疗
背景情况:
- 由于抗原损失导致的瘤复发是T细胞免疫疗法的一个主要挑战.
- 开发预防抗原损失瘤增长的策略对于提高治疗疗效至关重要.
研究的目的:
- 调查T细胞介导的旁观者杀戮的机制和范围.
- 建立实时观察旁观者杀人的实时观察方法,在体外和体内.
主要方法:
- 在体外杀死试验使用流动细胞计和现场微波成像.
- 用生物发光成像和多光子实时成像评估的体内瘤模型.
主要成果:
- 证明T细胞介导的旁观者杀死抗原阴性瘤细胞.
- 开发并验证了成像技术,以实时观察这一过程.
结论:
- 旁观者杀死是T细胞可以消除抗原阴性瘤细胞的重要机制.
- 描述的方法为研究T细胞疗法和瘤抵抗机制提供了一个多功能平台.
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