CD8导向的免疫化疗改善了高瘤负担的三阴性乳腺癌的病理完整反应率
Li Chen1, Shu-Hao Jiang1, Guang-Yu Liu1
1Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Centre, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
概括
康美利祖马布与化疗相结合,改善了三阴性乳腺癌 (TNBC) 的病理完整反应率. 在这项研究中,CD8+ T细胞透是预测免疫治疗反应的关键生物标志物.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 乳腺癌研究研究 乳腺癌研究
背景情况:
- 新辅助化疗是三阴性乳腺癌 (TNBC) 的标准.
- 编程细胞死亡1联体1 (PD-L1) 阻断显示出有希望的结果,但有相关的不良事件.
- 确定免疫治疗反应的预测生物标志物至关重要.
研究的目的:
- 为了评估camrelizumab (抗PD-1) 加上化疗在局部先进的免疫调节TNBC.
- 评估这种组合治疗的病理完整响应 (pCR) 率和安全性.
- 探索多omics数据,以预测治疗反应的生物标志物.
主要方法:
- 第二阶段随机试验涉及90名患有II-III阶段TNBC和CD8+T细胞透≥10%的患者.
- 患者接受了新辅助化疗,包括或不含卡梅利祖马布 (200毫克每两周一次).
- 评估了病理完整反应 (pCR) 率和3级以上的不良事件. 进行了多个omics分析.
主要成果:
- 卡姆雷利祖马布加化疗组的PCR率为62.2%,而单独化疗组的PCR率为42.2% (绝对增加20.0%,p=0.059).
- 3级以上的不良事件分别发生在88.9%和82.2%的患者中.
- 在用camrelizumab治疗的pCR患者中观察到CD8+ T细胞透率升高,与PD-L1表达和瘤透的淋巴细胞相关.
结论:
- 用camrelizumab进行的CD8导向免疫化疗改善了高瘤负担TNBC中的PCR率.
- 组合疗法显示出可管理的毒性.
- CD8+ T 细胞水平作为TNBC免疫治疗反应的潜在预测生物标志物.
相关概念视频
Tumor Immunotherapy
1.7K
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
1.7K
Targeted Cancer Therapies
8.6K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
8.6K


