摘要
本研究旨在评估肿瘤浸润性淋巴细胞(tumor-infiltrating lymphocytes,TILs)在恶性黑色素瘤中的预后价值,并探讨简化的数值评分系统是否更为有效。共收集并分析英国一家教学医院的原发侵袭性恶性黑色素瘤患者655例。使用标准化Clark预后模型重新评估TILs,并使用Cox回归模型评估TILs在单因素及多因素分析中对总生存期(overall survival,OS),疾病特异性生存期(disease-specific survival,DSS)和无转移生存期(metastasis-free survival,MFS)的影响。其中,30例(5%)恶性黑色素瘤不存在TILs,464例(71%)TILs不活跃,161例(24%)TILs活跃。TILs与Breslow厚度、年龄、恶性黑色素瘤亚型、核分裂象和组织学出现退化均有统计学相关性。在多因素分析中,TIL分级是MFS的独立预后指标[风险比(hazard ratio,HR),0.44;95%置信区间(confidence interval,Cl),0.25~0.77],但并非OS或DSS的独立预后指标。简单数值TIL百分比评分是OS(HR,0.55;95%CI,0.38~0.78)、DSS(HR,0.25;95%CI,0.14~0.44)和MFS(HR,0.32;95%CI,0.21~0.51)强有力的多因素预后指标。用预后金标准,美国癌症联合委员会癌症分期校正后,TIL百分比评分仍是OS(HR,0.66;95%CI,0.46~0.95)、DSS(HR,0.33;95%CI,0.19~0.60)和MFS(HR,0.41;95%CI,0.26~0.65)的预后指标。在随后的新病例中验证了TIL百分比评分的预后价值。总之,本研究有力地证实TILs高表达与较好的预后相关,并且证明了简化数值TIL评分系统的价值。
来源:Am J Surg Pathol 2017;41:906–914
美国外科病理学杂志中文版2018年第一期摘要No.1
(吕矫洁 翻译;王坚 审校)
The American Journal of Surgical Pathology中文版声明:
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