局部低剂量抗PD-L1抗体改善了口腔状细胞癌的抗瘤作用
Toko Machida1, Kaname Sakuma2, Nobukazu Fuwa3,4
1Department of Oral & Maxillofacial Surgery, The Nippon Dental University Graduate School of Life Dentistry at Niigata, Niigata, Japan; machida@ngt.ndu.ac.jp.
Anticancer research
|February 29, 2024
概括
局部低剂量抗PD-L1抗体治疗有效地对抗口腔状细胞癌,匹配全身治疗的疗效. 这种方法可以减少头癌治疗中的免疫相关不良事件.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 免疫检查点抑制剂 (ICI) 在复发性/转移性头癌中显示出有效性.
- 系统性给予ICI可以引起与免疫相关的不良事件 (irAEs).
- 降低ICI剂量以预防irAEs在临床上具有挑战性.
研究的目的:
- 为了评估局部低剂量抗编程死亡连接体1 (PD-L1) 抗体的抗瘤疗效.
- 为了比较局部低剂量治疗与口腔状细胞癌的全身标准剂量治疗.
- 评估对瘤微环境的影响.
主要方法:
- 使用了小鼠口腔粘膜状细胞癌 (Sq-1979) 模型.
- 这些组接受了全身标准剂量 (200毫克/人体) 或局部低剂量 (20毫克/人体) 的抗PD-L1抗体.
- 分析了瘤减少,CD8+ T细胞计数和免疫标记物 (PD-L1,PD-1,穿孔素,大酶B,Tregs).
主要成果:
- 局部低剂量和全身标准剂量抗PD-L1治疗表明了可比的抗瘤疗效.
- 两组治疗都显示出与对照组相比,瘤显著减少.
- 局部低剂量给药导致孔素和大酶B水平的增加.
结论:
- 局部低剂量抗PD-L1抗体的使用是治疗口腔状细胞癌的可行策略.
- 这种方法实现了与全身标准剂量治疗相似的抗瘤效果.
- 当地交付可能提供一种减轻与ICI相关的irAEs的方法.
关键词:
巨型酵素 (Granzymes) 是一种酶.在口腔粘膜.免疫检查点抑制剂 免疫检查点抑制剂与免疫相关的不良事件.低剂量局部管理的局部管理.口腔癌的细胞系是口腔癌细胞系.穿孔是为了穿孔.编程细胞死亡联体1抗体状细胞癌的癌症.更多相关视频
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