通过T细胞的氧气感应建立了免疫学上耐受性的转移性
David Clever1, Rahul Roychoudhuri2, Michael G Constantinides3
1Surgery Branch, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD 20892, USA; Medical Scientist Training Program, The Ohio State University College of Medicine, Columbus, OH 43210, USA.
Cell
|August 28, 2016
概括
通过抑制抗瘤免疫,T细胞中的prolyl- hydroxylase (PHD) 蛋白促进肺转移. 抑制PHD蛋白质可以限制癌症的扩散,并提高肺部免疫疗法的有效性.
科学领域:
- 免疫学
- 癌症生物学
- 肺部医学
背景情况:
- 癌症转移, 特别是肺部, 需要免疫规避.
- 肺部特定的免疫机制可能会促进瘤的殖民化.
- 在这种情况下,氧气感应蛋白质的作用尚不清楚.
研究的目的:
- 研究T细胞内在PHD蛋白在肺转移中的作用.
- 确定PHD蛋白在瘤殖民期间如何影响肺免疫微环境.
主要方法:
- 使用基因工程小鼠模型,对T细胞特异性删除PHD蛋白质.
- 使用药理抑制PHD蛋白质.
- 分析了肺中的免疫细胞群 (T助手1,调节性T细胞,CD8+T细胞) 和细胞因子 (IFN-γ).
主要成果:
- T细胞内在的PHD蛋白对于许可肺转移至关重要.
- PHD蛋白限制T助手1反应,促进调节性T细胞诱导,并抑制肺中的CD8+T细胞功能.
- PHD抑制降低了瘤定居,并改善了采用细胞转移免疫疗法的疗效.
结论:
- 在T细胞中的PHD蛋白调节肺部免疫反应,使癌症转移.
- 向PHD蛋白是一种潜在的治疗策略,可以对抗肺转移并增强癌症免疫疗法.
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