活体CS1-OKT3双特异性双价抗体武装效应性T细胞介导细胞免疫力对抗多发性髓瘤
Dennis Awuah1, Lin Li2, Lindsay Williams2
1T Cell Therapeutics Research Laboratory, Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA, 91010, USA.
Scientific reports
|November 27, 2023
概括
针对CS1的双特异性T细胞参与抗体 (bsAbs) 对多发性骨髓瘤 (MM) 是有前途的. CS1-dbBiTE武装的T细胞有效地杀死CS1-表达的MM瘤,在临床前模型中减少瘤负担.
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:
- 双特异性T细胞参与抗体 (bsAbs) 将T细胞重定向用于杀死瘤.
- 在多发性骨髓瘤 (MM) 细胞上,CS1的表达高,使其成为理想的治疗点.
研究的目的:
- 开发和评估一种用于多发性骨髓瘤治疗的新型CS1-向双特异抗体 (CS1-dbBiTE).
- 评估使用CS1-dbBiTE对CS1-表达MM的ex-vivo武装T细胞的疗效.
主要方法:
- 通过使用Click化学结合抗CS1和抗huOKT3抗体来开发CS1-dbBiTE.
- 人类T细胞的ex-vivo武装使用CS1-dbBiTE.
- 对T细胞激活,扩张,细胞因子分泌和对MM细胞的细胞毒性活动的评估.
- 在MM小鼠异种移植模型中评估抗瘤疗效.
主要成果:
- CS1-dbBiTE武装的T细胞对CS1-阳性MM细胞表现出激活,扩张和强大的细胞毒性活性.
- 在没有CS1表达的情况下,效应器活性显著降低.
- 在MM异种移植模型中,CS1-dbBiTE武装的T细胞显示出显著的抗瘤疗效,降低了瘤负担.
结论:
- CS1-dbBiTE代表了针对多发性骨髓瘤的有前途的治疗策略.
- 用CS1-dbBiTE武装的T细胞为MM治疗提供了潜在的细胞疗法方法.
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