TIM-3符合高风险软组织肉瘤 (HR-STS) 患者特定亚组的潜在免疫治疗标条件
Luc M Berclaz1, Annelore Altendorf-Hofmann2, Lars H Lindner1
1Department of Internal Medicine III, University Hospital, Ludwig-Maximilians-University (LMU) Munich, 81377 Munich, Germany.
Cancers
|June 22, 2023
概括
含有T细胞免疫球蛋白和粘素域的蛋白3 (TIM-3) 在超过一半的高风险软组织肉瘤 (HR-STS) 中表达,特别是在未分化的多形肉瘤中. 虽然TIM-3可能是免疫治疗的标,但在本研究中它没有影响患者的存活率.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 病理学 病理学 病理学
背景情况:
- 含有T细胞免疫球蛋白和粘素域蛋白3 (TIM-3) 是一种免疫检查点受体,与各种固体瘤的不良结果有关.
- TIM-3封锁是癌症免疫治疗正在进行的临床试验的重点.
- 高风险软组织瘤 (HR-STS) 代表了一组具有攻击性的恶性瘤,其中免疫检查点表达的特征不清楚.
研究的目的:
- 研究HR-STS患者瘤细胞中TIM-3的表达.
- 将TIM-3表达与临床病理特征和其他免疫标记物相关联.
- 在HR-STS中评估TIM-3表达的预后意义.
主要方法:
- 从179名HR-STS患者的瘤活检中分析了TIM-3蛋白表达.
- TIM-3表达与组织学亚型,瘤透性淋巴细胞 (TIL) 计数,编程细胞死亡1 (PD-1) 和编程细胞死亡连接体1 (PD-L1) 表达相关.
- 根据TIM-3表达状态进行了生存分析.
主要成果:
- 在56% (101/179) 的治疗前HR-STS活检中检测到TIM-3表达.
- TIM-3表达与未分化的多形肉瘤 (UPS),高TIL计数和高PD-1/PD-L1表达有显著的关联.
- TIM-3表达没有显示出对患者存活率的显著影响.
结论:
- 这项研究是首次报告TIM-3在HR-STS的特定子集中的显著瘤细胞表达.
- 在HR-STS中,TIM-3代表了一个潜在的免疫治疗标.
- 需要进一步的研究来探索TIM-3封锁在HR-STS中的治疗潜力.
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