在固体瘤中对子宫内糖氨酸糖具有特异性的过渡性CAR-T细胞
Nastaran Khazamipour1,2, Htoo Zarni Oo1,2,3, Nader Al-Nakouzi1,2
1Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
EMBO molecular medicine
|October 15, 2024
概括
研究人员开发了针对癌症特异性ondroitin硫酸盐 (CS) 的仿真抗原受体 (CAR) T细胞. 这些CAR-T细胞装备了特定的莱克,在体外和体内有效地消除了瘤,显示出免疫治疗的前景.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 葡萄糖生物学 葡萄糖生物学
背景情况:
- 葡萄糖氨基甘氨酸 (GAG) 由于其复杂的葡萄糖表位 (glyco-epitopes) 是具有挑战性的免疫治疗点.
- 胎冠状素硫酸盐 (CS) 在固体瘤上表达,但通常仅限于胎盘.
研究的目的:
- 设计和评估化抗原受体 (CAR) 的T细胞,以向胎儿CS.
- 评估VAR2CSA-lectin-armed CAR T细胞对表达子宫CS的瘤的疗效.
主要方法:
- 转移性CAR T细胞的发展,具有针对子宫内CS的特异性.
- 用复合VAR2CSA学蛋白 (rVAR2) 武装CAR T细胞以向瘤细胞.
- 在体外和体内对CAR T细胞激活,细胞毒性和抗瘤作用的评估.
主要成果:
- 在实验室中,VAR2武装的CAR T细胞表现出强大的激活,并消除了各种瘤细胞类型.
- 通过rVAR2.2的度来调整CAR T细胞细胞毒性.
- 在体内研究表明,武装的CAR T细胞向膀瘤,并改善小鼠的生存率.
结论:
- 携带rVAR2的过渡性CAR-T细胞可以有效地向和消除表达胎儿CS的瘤.
- 癌症受限的GAG代表了基于CAR T细胞的新型免疫疗法的可行目标.
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