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在默克尔细胞癌中PRAME表达

Elisabeth Miller¹, Andrew Biesemier¹, David M Coomes²

¹Department of Pathology, University of Virginia, Charlottesville, VA.

The American journal of surgical pathology

|July 12, 2024

概括

在黑色素瘤中优先表达的抗原 (PRAME) 在默克尔细胞癌 (MCC) 中的表达可能表明预后更差. 这项研究发现PRAME阳性与MCC患者的死亡风险增加相关,突出了其潜在的预后价值.

科学领域:

在瘤学瘤学.
皮肤病学皮肤病学
病理学病理学病理学

背景情况:

默克尔细胞癌 (MCC) 是一种罕见的,侵袭性的皮肤神经内分泌瘤.
危险因素包括阳光损伤,默克尔细胞多细胞瘤病毒 (MCPyV) 和免疫抑制.
在黑色素瘤中优先表达抗原 (PRAME) 是一种用于黑色素细胞瘤的癌症丸抗原,但其在MCC中的作用尚不清楚.

研究的目的:

为了研究MCC中的PRAME表达.
探索PRAME在MCC患者的预后影响.
评估PRAME表达和MCPyV阳性之间的相关性.

主要方法:

弗吉尼亚大学对39例MCC病例 (2004-2022) 的回顾性审查.
针对PRAME和MCPyV的免疫组织化学染色.
考克斯比例危险回归模型用于生存分析.

主要成果:

28%的MCC病例表现出强烈的PRAME表达; 27%为MCPyV.阳性.
在PRAME表达和MCPyV阳性之间没有发现显著的相关性.
与PRAME阳性相关的全因死亡率的调整后危险比为11.4 (95% CI:1.8,70.8).

结论:

在MCC中PRAME表达与明显更差的全因死亡率有关.
在默克尔细胞癌中,PRAME可能作为一种有价值的预后标记物.
需要进一步的研究来验证这些发现在更大的队列中.

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