固体器官移植接受者的默克尔细胞癌:对免疫治疗的预后和反应
Tomoko Akaike1, Peter Y Ch'en1,2, Daniel S Hippe3
1Department of Dermatology, University of Washington, Seattle, WA, USA.
The British journal of dermatology
|July 27, 2025
概括
默克尔细胞癌 (MCC) 对实体器官移植接受者 (SOTR) 的预后更糟. 抗编程死亡-结体1 (抗PD-L) 1) 免疫疗法显示出潜力,但带有风险,例如在SOTR中具有高级MCC的移植失败.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 移植 移植 移植 移植
背景情况:
- 默克尔细胞癌 (MCC) 是一种侵袭性皮肤癌,在免疫功能低下的个体,特别是固体器官移植接受者 (SOTR) 中发病率增加.
- 全球越来越多的SOTR预计将在这个脆弱人群中增加MCC病例.
- 在免疫能力 (IC) 患者中有效的抗编程死亡- (() 1 (抗PD- ((L) 1) 免疫疗法的有效性和安全性在SOTR中仍然在很大程度上未被研究,这是由于试验排除.
研究的目的:
- 为了比较SOTR和IC诊断为MCC的患者之间的基线特征和结果.
- 为了评估抗PD-(L) 1免疫疗法在SOTR中与先进的MCC的疗效和安全概况.
主要方法:
- 一个单一机构的MCC注册表的回顾性分析 (1988年4月至2024年5月).
- 提取的数据包括人口统计数据,免疫抑制疗法,抗PD-L) 1反应和移植排斥/失败率.
- 在SOTR和IC患者队列之间的比较分析.
主要成果:
- 在1214名MCC患者中,37人是SOTR. SOTR患者呈现出更先进的MCC (76%对51%) 并面临明显更糟糕的结果.
- SOTR状态与更高的疾病进展率 (aHR 2.3),MCC特异性死亡率 (aHR 3.0) 和整体死亡率 (aHR 3.9) 有关.
- 在接受抗PD-(L) 1治疗的8名SOTR中,63%的人取得了客观反应,但29%的人经历了不可逆转的移植失败.
结论:
- 固体器官移植接受者身份是默克尔细胞癌预后较差的一个独立风险因素.
- 这项研究提供了对先进MCC的SOTR中抗PD-(L) 1疗效和安全性的最大评估.
- 抗PD-(L) 1免疫疗法在晚期MCC的SOTR中显示出潜在的临床益处,尽管仔细监测移植毒性至关重要.
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