在癌症中,NF-κB c-Rel对调控性T细胞免疫检查点至关重要
Yenkel Grinberg-Bleyer1, Hyunju Oh1, Alexis Desrichard2
1Department of Microbiology & Immunology, College of Physicians & Surgeons, Columbia University, New York, NY 10032, USA.
Cell
|September 9, 2017
概括
在调节性T细胞 (Tregs) 中抑制NF-κBc-Rel通路会减缓黑色素瘤的生长. 这种方法通过减少Treg介导的免疫抑制来增强抗PD-1免疫疗法,为癌症治疗提供了新的策略.
科学领域:
- 免疫学
- 癌症学
- 分子生物学
背景情况:
- 调节性T细胞 (Tregs) 在抑制抗瘤免疫反应方面至关重要.
- 了解Treg平衡对于有效的瘤免疫疗法至关重要.
- 规范性核因子 κB (NF-κB) 的子单位 p65 和 c-Rel 是 Treg 标识和功能的关键.
研究的目的:
- 研究NF-κBc-Rel在调控T细胞功能和瘤免疫中的特定作用.
- 确定抑制NF-κBc-Rel在黑色素瘤治疗中的治疗潜力.
主要方法:
- 在Tregs中使用特定的c-Rel移除的小鼠模型.
- 在缺乏c-Rel的小鼠中评估黑色素瘤生长与Tregs中的p65.
- 与抗PD-1免疫疗法一起使用化学抑制c-Rel功能.
主要成果:
- NF-κB c-Rel 除特别影响了激活的Tregs (aTregs) 的产生和维持.
- 在Tregs中缺乏c-Rel的小鼠中,黑色素瘤的生长显著减少,但没有p65.
- 通过减少aTreg介导的免疫抑制,对c-Rel的化学抑制延缓了黑色素瘤的生长.
- 抑制c-Rel增强了抗PD-1免疫疗法的有效性.
结论:
- NF-κB c-Rel对于瘤丰富激活Tregs的功能至关重要.
- 抑制NF-κBc-Rel是一种有前途的治疗策略,可以增强癌症免疫疗法,特别是抗PD-1治疗.
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