在固体瘤中TROP2 (TACSTD2) 表达的基因组,免疫学和预后关联
Dan Morgenstern-Kaplan1, Samuel A Kareff1, Asaad Trabolsi1
1Department of Medicine, Division of Medical Oncology, University of Miami Sylvester Comprehensive Cancer Center/Jackson Memorial Hospital, Miami, FL 33131, United States.
The oncologist
|July 10, 2024
概括
固体瘤中高TROP2 (TACSTD2) 表达与特定突变和更活跃的免疫微环境相关,影响整体存活率和对治疗的反应.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 免疫治疗是一种免疫疗法.
背景情况:
- 在一些固体瘤中,TROP2 (TACSTD2) 表达与较差的存活率有关.
- 针对TROP2的抗体-药物合物 (ADC) 已被批准用于乳腺癌和泌尿器癌.
研究的目的:
- 为了研究TACSTD2表达在各种固体瘤中的多原子格局.
- 确定可能从TROP2向治疗中受益的患者子组.
主要方法:
- 使用下一代测序和全转录组测序分析了超过26,000种瘤 (乳腺,结肠直肠,肝细胞,胰腺,泌尿器) 的分析.
- 根据TACSTD2基因表达,将瘤分为四分之一的分层.
- 分子数据与生存结果和免疫微环境特征的相关性.
主要成果:
- 高TACSTD2的瘤经常存在TP53,KRAS,ARID1A,FGFR3和CTNNB1.1中的突变.
- 低TACSTD2的乳腺瘤显示了CCND1和FGF/R基因的放大.
- 更高的TACSTD2表达与增加的免疫细胞透和T细胞炎症有关.
- 患有高TACSTD2的乳腺癌,结肠直肠癌和胰腺癌的患者的整体存活期显著缩短,特别是在微卫星稳定的结肠直肠癌和KRAS突变胰腺癌中.
- 患有高TACSTD2瘤的乳腺癌患者在使用免疫检查点抑制剂时经历了更糟糕的结果.
结论:
- TACSTD2表达与关键驱动突变和活跃的免疫微环境有关.
- 研究结果表明,有可能将针对TROP2的ADC与各种固体瘤的免疫治疗相结合.
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