CD93阻断促进了效应T细胞的透,并促进了固体瘤的采用细胞疗法
Yi Sun1, Elliott Yee1, Yuki Fujiwara1
1Division of Surgical Oncology, Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
Journal for immunotherapy of cancer
|January 13, 2025
概括
向CD93阻塞通过改善T细胞透来增强固体瘤的自适应细胞疗法 (ACT). 这种方法使瘤血管正常化,提高了CAR-T细胞治疗对抗具有挑战性的癌症的有效性.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 细胞疗法细胞疗法
背景情况:
- 适应性细胞疗法 (ACT),包括CAR-T细胞疗法,对血液癌症有前途,但与固体瘤透作斗争.
- 较差的T细胞贩运到固体瘤限制了当前ACT治疗的有效性.
- 以前的研究表明,CD93向能使瘤血管正常化,增强免疫检查点阻塞疗法.
研究的目的:
- 调查CD93阻断是否可以改善固体癌症中ACT的疗效.
- 评估CD93阻断对实效T细胞透和功能在固体瘤中的影响.
主要方法:
- 使用与抗CD93或抗IGFBP7单克隆抗体治疗的小鼠黑色素瘤模型.
- 管理了各种效应性T细胞,包括CAR-T细胞,CD8+OT-1和pmel-1T细胞.
- 评估了瘤血管正常化,T细胞通过免疫光和流细胞计透,以及粘附分子ICAM1和VCAM1.1的作用.
主要成果:
- CD93路径阻断了瘤血管上的上调粘附分子,增强了T细胞的透和功能.
- 结合T细胞转移和CD93阻断协同改善了瘤血管成熟,并抑制了瘤的进展.
- 抗CD93治疗在CD93上调的瘤中选择性地促进了效应T细胞透,在固体小鼠模型中显著改善了CAR-T治疗结果.
结论:
- CD93阻断使瘤血管正常化,从而增强实效T细胞透和固体癌症中的功能.
- 这些发现支持使用CD93阻断作为改善实体瘤ACT的策略.
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