背景:默克尔细胞癌(MCC)是一种侵袭性癌症,通常预后较差。用于预测临床结果的生物标志物有限。默克尔细胞多瘤病毒(MCPyV)血清抗体测试(AMERK)已显示出在单机构研究中表明更好的无复发生存率的潜力。该研究旨在评估AMERK初始血清状态与生存率之间的联系。次要目标包括检查初始AMERK滴度水平与肿瘤负荷之间的关系。
方法:一项跨两个机构的回顾性队列研究分析了在MCC诊断90天内接受AMERK测试的患者。回归模型评估了生存结果与血清状态的关联,考虑各种因素。使用ANOVA评估AMERK滴度与肿瘤负荷指标之间的关系。显著性测试是探索性的,没有固定的显著性水平。
结果:在接受测试的261名MCC患者中,49.4%最初为血清阳性(滴度≥75)。多变量分析显示血清阳性可改善复发,无事件,总的来说,和MCC特异性生存率。在初始AMERK滴度和临床之间发现了强烈的关联,肿瘤,和节点阶段,肿瘤大小,和疾病程度。值得注意的是,仅在初次就诊时患有局部疾病的患者中观察到有血清阳性的生存率提高.
结论:针对MCPyV癌蛋白的循环抗体,正如AMERK测试表明的那样,在出现局部疾病的MCC患者中,与更好的生存率有关。这可以增强患者风险分析和治疗个性化。研究的回顾性和探索性分析是主要的局限性。
结论:默克尔细胞癌(MCC)是一种潜在的侵袭性皮肤癌,和工具来预测患者的结果是有限的。一项名为抗默克尔细胞小组(AMERK)的血液测试,检查与这种癌症相关的特异性抗体,可能会给我们一些线索.在这项研究中,我们观察了261例MCC患者,这些患者在确诊后90天内接受了AMERK检测.我们发现初始AMERK阳性结果的患者往往有更好的结果,特别是如果他们的癌症处于早期阶段。然而,重要的是要注意这项研究有局限性,包括使用回顾性数据和探索性分析。
BACKGROUND: Merkel cell carcinoma (MCC) is an aggressive cancer with often poor outcomes. Limited biomarkers exist for predicting clinical outcomes. The Merkel cell polyomavirus (MCPyV) serum
antibody test (AMERK) has shown potential for indicating better recurrence-free survival in a single-institution
study. The
study aimed to evaluate the link between initial AMERK serostatus and survival. Secondary objectives included examining the relationship between initial AMERK titer levels and tumor burden.
METHODS: A retrospective cohort
study across two institutions analyzed patients tested with AMERK within 90 days of MCC diagnosis. Regression models assessed the association of survival outcomes with serostatus, considering various factors. The relationship between AMERK titer and tumor burden indicators was evaluated using ANOVA. Significance testing was exploratory, without a fixed significance level.
RESULTS: Of 261 MCC patients tested, 49.4% were initially seropositive (titer ≥75). Multivariable analysis showed that seropositivity improved recurrence, event-free, overall, and MCC-specific survival rates. Strong associations were found between initial AMERK titer and clinical, tumor, and nodal stages, tumor size, and disease extent. Notably, improved survival with seropositivity was observed only in patients with localized disease at initial presentation.
CONCLUSIONS: Circulating antibodies to MCPyV oncoproteins, as indicated by the AMERK test, are linked with better survival in MCC patients with localized disease at presentation. This could enhance patient risk profiling and treatment personalization. The
study\'s retrospective nature and exploratory analysis are key limitations.
CONCLUSIONS: Merkel cell carcinoma (MCC) is a potentially aggressive skin cancer, and tools to predict patient outcomes are limited. A blood test called anti-Merkel cell panel (AMERK), which checks for specific antibodies related to this cancer, might give us some clues. In this study, we looked at 261 MCC patients who took the AMERK test within 90 days of diagnosis. We found that patients with an initial positive AMERK result tended to have better outcomes, especially if their cancer was in the early stages. However, it is important to note that this study has limitations, including using retrospective data and exploratory analyses.