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癌症免疫治疗中的双抗PD-L1/TGF-β抑制剂 - 更新
Zana Karami1, Keywan Mortezaee2, Jamal Majidpoor3
1Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran.
International immunopharmacology
|July 17, 2023
概括
针对转化生长因子-β (TGF-β) 和编程死亡-1 (PD-1) /PD-L1信号的双特异性抑制剂增强了抗癌免疫力. 这种方法克服了瘤的耐药性,并改善了与单一向治疗相比持久的反应.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 癌症治疗 癌症治疗
背景情况:
- 免疫检查点抑制剂 (ICI) 治疗面临着由于免疫抑制性瘤免疫微环境 (TIME) 的瘤耐药性和复发的挑战.
- 转化生长因子-β (TGF-β) 信号传输在促进瘤进展和免疫抑制方面发挥着至关重要的作用.
- 双特异性抑制剂提供了一种新的策略,可以同时针对多个信号通路,以增强抗癌效应.
研究的目的:
- 评估针对TGF-β信号传导和PD-1/PD-L1的双特异性抑制剂在克服瘤耐药性的有效性.
- 评估这些双特异性抑制剂对瘤微环境中的免疫细胞群的影响.
- 探索潜在的生物标志物,以预测对双特异性抗PD-L1/TGF-β治疗的反应.
主要方法:
- 开发和应用针对TGF-β和PD-1/PD-L1通路的双特异性融合蛋白.
- 评估免疫细胞活性,包括CD8+ T细胞,NK细胞,调节性T细胞 (Tregs) 和M1巨细胞.
- 两种特定疗法和单一疗法 (抗PD-L或TGF-β抑制剂) 之间的响应率的比较.
主要成果:
- 双特异性抗PD-L1/TGF-β抑制剂重新激活了效应体CD8+ T和NK细胞活性,减少了Treg扩张,并增加了M1巨细胞密度.
- 对双特异性抑制剂的反应优于单一向治疗的反应.
- 人类乳头瘤病毒 (HPV) +患者观察到增强的反应,高PD-L1表达或免疫排除的表型可能表明反应更好.
结论:
- 双特异性抗PD-L1/TGF-β抑制剂是增强抗癌免疫力和克服瘤抵抗力的有前途的策略.
- 这种方法为持久的抗癌疗法提供了潜力,特别是在特定患者群体中.
- 该疗法可以安全地与其他治疗方式相结合,如疫苗接种,放射和化疗.
关键词:
免疫检查点抑制剂 (ICI)编程死亡-1 (PD-1) 是指编程死亡.编程死亡链条1 (PD-L1) 编程死亡链条1电阻 电阻 电阻 电阻 电阻 电阻转型增长因子 (TGF) 是一个转型增长因子.瘤免疫微环境 (时间)更多相关视频
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