对抗原的量化和功能性评估(-) 瘤细胞变体
Ivan Odak1, Xinping Xie1, Gvantsa Pantsulaia1
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.
Methods in cell biology
|January 31, 2026
概括
像CAR T细胞这样的癌症免疫疗法可以导致抗原阴性瘤逃逸. 这项研究提出了一种新的方法来量化和评估这些耐药细胞,有助于克服治疗障碍.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 生物技术是生物技术.
背景情况:
- 包括CAR T细胞和双特异性抗体在内的T细胞重定向疗法是先进的癌症免疫疗法.
- 这些疗法施加选择性压力,对抗原阴性 (Ag低/-) 瘤细胞变体具有潜在的丰富性,这些变体对治疗有抗性.
- 由先前存在的Ag低/-细胞驱动的抗原逃逸是临床复发的主要原因,也是癌症治疗中的重大挑战.
研究的目的:
- 描述一种用于量化和功能性评估抗原阴性 (Ag-) 瘤细胞的新方法.
- 为了使单细胞样本 (活检或PBMCs) 的高通量选为Ag-细胞群.
- 为评估Ag-细胞的向倾向提供一种简单的体外试验法.
主要方法:
- 开发一种量化抗原阴性瘤细胞的方法.
- 该方法应用于单细胞活检或外围血液单核细胞 (PBMC) 样本.
- 在体外测定设计用于评估Ag-细胞对免疫向的敏感性.
主要成果:
- 描述的方法允许对抗原阴性瘤细胞进行量化和功能评估.
- 该方法促进了各种样本类型的高通量选.
- 该试验提供了对Ag-细胞向倾向的直接评估.
结论:
- 开发的方法为研究癌症免疫治疗中的抗原逃逸机制提供了有价值的工具.
- 这种方法可以适应来自不同解剖部位的样本,并与广泛的流式细胞计表型集成.
- 量化和评估Ag-细胞对于克服治疗耐药性和改善癌症免疫治疗患者的结果至关重要.
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