实用肿瘤学杂志 ›› 2019, Vol. 33 ›› Issue (1): 40-46.doi: 10.11904/j.issn.1002-3070.2019.01.007

• 临床研究 • 上一篇    下一篇

PD-L1蛋白与CD8+TILs联合检测在可切除肺腺癌预后评估中的临床意义

马健力1, 张明辉2, 姬宏飞3,4, 徐向英1   

  1. 1.哈尔滨医科大学附属肿瘤医院放射治疗科(哈尔滨 150081);
    2.哈尔滨医科大学附属肿瘤医院肿瘤内科;
    3.哈尔滨医科大学肿瘤防治研究所;
    4.黑龙江省医学科学院
  • 收稿日期:2018-11-12 出版日期:2019-02-28 发布日期:2019-02-13
  • 通讯作者: 徐向英,E-mail:37963326@qq.com
  • 作者简介:马健力,男,(1991-),硕士,主治医师,从事肺癌放射治疗的研究。
  • 基金资助:
    黑龙江省自然科学基金(省留学归国人员科学基金)(编号:LC2017037)

Clinical significance of combined detection of PD-L1 protein and CD8+TILs in resected lung adenocarcinoma

MA Jianli1, ZHANG Minghui2, JI Hongfei3,4, XU Xiangying1   

  1. 1.Department of Radiation Oncology,Harbin Medical University Cancer Hospital,Harbin 150081,China;
    2.Department of Medical Oncology,Harbin Medical University Cancer Hospital;
    3.Institute of Cancer Prevention and Treatment,Harbin Medical University;
    4.Heilongjiang Academy of Medical Sciences
  • Received:2018-11-12 Online:2019-02-28 Published:2019-02-13

摘要: 目的 PD-L1表达在可手术切除的肺腺癌(Lung adenocarcinoma,ADC)中的预后作用存在争议,本研究旨在探讨PD-L1联合CD8+TILs表达对可切除肺腺癌患者的预后价值。方法 选取2009年1月—2012年12月在哈尔滨医科大学附属肿瘤医院接受根治性手术切除的肺腺癌患者104例,免疫组织化学方法检测原发灶标本PD-L1、CD8+TILs表达,并分析其临床病理因素及与预后的关系。结果 肿瘤细胞中PD-L1阳性表达率为38.5%(40/104),CD8high TILs的阳性率为44.2%(46/104)。CD8high TILs与早期可切除ADC患者的TNM分期有关(P=0.021)。生存分析结果显示和CD8high TILs与无病生存期和总生存期有关,可作为判断可切除ADC患者预后的独立预测因子。结论 术后标本PD-L1表达及CD8high TILs浸润有助于判断患者的预后,该研究对于可手术切除ADC患者中针对PD-1/PD-L1途径的免疫疗法具有一定的指导意义。

关键词: 程序性细胞死亡蛋白-配体1, CD8highTILs, 肺腺癌, 预后

Abstract: Objective The prognostic role of PD-L1 expression in surgically resected lung adenocarcinoma(ADC)remains controversial.The aim of present study was to investigate the prognostic value of PD-L1 combined with CD8+TILs expression in patients with resectable lung adenocarcinoma.Methods A total of 104 patients with lung adenocarcinoma who underwent radical resection were enrolled at the Affiliated Tumor Hospital of Harbin Medical University from January 2009 to December 2012.Immunohistochemistry was used to detect the expression of PD-L1 and CD8+TILs in primary tumor specimens.Its clinical pathological factors and its relationship with prognosis were statistical analysis.Results The positive expression rate of PD-L1 in tumor cells was 38.5%(40/104),and the positive rate of CD8+TILs was 44.2%(46/104).There was a significant correlation between the expression of CD8+TILs and TNM stages of patients with resectable ADC.The Kaplan-Meier survival analysis showed that low expression of PD-L1 and high expression of CD8+TILs were significantly associated with disease-free survival(DFS)and overall survival(OS),and could be used as an independent predictors for predicting prognosis of patients with resectable ADC.Conclusion The expression of PD-L1 and CD8+TILs in the postoperative specimens can help to judge the prognosis of patients.This study has certain significance for immunotherapy of PD-1/PD-L1 pathway in patients with surgically resected ADC.

Key words: Programmed cell death-ligand 1, CD8high TILs, Lung adenocarcinoma, Prognosis

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