抗CTLA-4抗体可能对具有大型瘤的大型非小细胞肺癌有效
Hiroshi Saijo1, Yoshihiko Hirohashi2, Osamu Honjo3
1Department of Respiratory Medicine, Sapporo Minami-Sanjo Hospital, Sapporo, Japan; h_saijo@h-keiaikai.or.jp.
Anticancer research
|August 30, 2023
概括
免疫检查点抑制剂 (ICI) 在大型非小细胞肺癌 (NSCLC) 中由于调控性T细胞透而显示出降低的疗效. 基于抗CTLA-4抗体的免疫疗法可以为大型NSCLC提供改善的结果.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 癌症研究 癌症研究
背景情况:
- 免疫检查点抑制剂 (ICI) 已经改变了高级非小细胞肺癌 (NSCLC) 治疗.
- 大型NSCLC的最佳治疗策略仍在争论中,对抗CTLA-4抗体的疗效尚不清楚.
- 识别CTLA-4阻断的生物标志物对于改善大型NSCLC治疗至关重要.
研究的目的:
- 在高级非小细胞肺癌 (NSCLC) 中研究CTLA-4阻断的生物标志物.
- 评估抗CTLA-4抗体治疗在大型NSCLC中的疗效.
- 探索瘤大小,T细胞透和治疗反应之间的关系.
主要方法:
- 在接受抗PD-1单疗的晚期NSCLC患者中,与治疗持续时间相关的瘤直径.
- 在小型和大型NSCLC中通过免疫组织化学量化瘤透的CD8+T细胞和调节性T (Treg) 细胞.
- 在大型NSCLC患者中评估含有抗CTLA-4抗体的治疗方案的疗效.
主要成果:
- 在抗PD-1单一治疗的瘤直径和治疗持续时间之间观察到负相关性.
- 与小瘤相比,大型NSCLC瘤的Treg细胞透率显著更高.
- 包括抗CTLA-4抗体的治疗方案在患有大型NSCLC的患者中显示出显著的疗效.
结论:
- 在大型NSCLC中更高Treg细胞的透可能会降低抗PD-1单一治疗的有效性.
- 将抗CTLA-4抗体纳入治疗方案是大型NSCLC的一个有希望的策略.
- 用抗CTLA-4抗体向Treg细胞可以提高大型NSCLC的免疫治疗结果.
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