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CK19和磷脂酰肌醇蛋白聚糖3表达谱在肝癌手术切除患者预后指标中的应用

CK19 and Glypican 3 Expression Profiling in the Prognostic Indication for Patients with HCC after Surgical Resection.

作者信息

Feng Jiliang, Zhu Ruidong, Chang Chun, Yu Lu, Cao Fang, Zhu Guohua, Chen Feng, Xia Hui, Lv Fudong, Zhang Shijie, Sun Lin

机构信息

Clinical-Pathology Center, Beijing You-An Hospital, Capital Medical University, Beijing, 100069, China.

Surgical Center, Beijing You-An Hospital, Capital Medical University, Beijing, 100069, China.

出版信息

PLoS One. 2016 Mar 15;11(3):e0151501. doi: 10.1371/journal.pone.0151501. eCollection 2016.

Abstract

This retrospective study was designed to investigate the correlation between a novel immunosubtyping method for hepatocellular carcinoma (HCC) and biological behavior of tumor cells. A series of 346 patients, who received hepatectomy at two surgical centers from January 2007 to October 2010, were enrolled in this study. The expressions of cytokeratin 19 (CK19), glypican 3 (GPC3), and CD34 were detected by immunohistochemical staining. The clinical stage was assessed using the sixth edition tumor-node-metastasis (TNM) system (UICC/AJCC, 2010).Vascular invasion comprised both microscopic and macroscopic invasion. The tumor size, lymph node involvement, and metastasis were determined by pathological as well as imaging studies. Recurrence was defined as the appearance of new lesions with radiological features typical of HCC, seen by at least two imaging methods. Survival curves for the patients were plotted using the Kaplan-Meier method, and differences between the curves were assessed using the log-rank test. Significant differences in morphology, histological grading, and TNM staging were observed between groups. Based on the immunohistochemical staining, the enrolled cases were divided into CK19+/GPC3+, CK19-/GPC3+ and CK19-/GPC3- three subtypes. CK19+/GPC3+ HCC has the highest risk of multifocality, microvascular invasion, regional lymph node involvement, and distant metastasis, followed by CK19-/GPC3+ HCC, then CK19-/GPC3-HCC. CK19+/GPC3+ HCC has the shortest recurrence time compared to other immunophenotype HCCs. CK19 and GPC3 expression profiling is an independent prognostic indicator in patients with HCC, and a larger sample size is needed to further investigate the effect of this immunosubtyping model in stratifying the outcome of HCC patients.

摘要

本回顾性研究旨在探讨一种新型肝细胞癌(HCC)免疫分型方法与肿瘤细胞生物学行为之间的相关性。本研究纳入了2007年1月至2010年10月在两个外科中心接受肝切除术的346例患者。通过免疫组织化学染色检测细胞角蛋白19(CK19)、磷脂酰肌醇蛋白聚糖3(GPC3)和CD34的表达。采用第六版肿瘤-淋巴结-转移(TNM)系统(UICC/AJCC,2010)评估临床分期。血管侵犯包括微观和宏观侵犯。肿瘤大小、淋巴结受累情况和转移情况通过病理及影像学检查确定。复发定义为通过至少两种影像学方法观察到具有HCC典型放射学特征的新病变出现。采用Kaplan-Meier法绘制患者生存曲线,并使用对数秩检验评估曲线之间的差异。各组之间在形态学、组织学分级和TNM分期方面观察到显著差异。基于免疫组织化学染色,将纳入病例分为CK19+/GPC3+、CK19-/GPC3+和CK19-/GPC3-三个亚型。CK19+/GPC3+ HCC发生多灶性、微血管侵犯、区域淋巴结受累和远处转移的风险最高,其次是CK19-/GPC3+ HCC,然后是CK19-/GPC3- HCC。与其他免疫表型的HCC相比,CK19+/GPC3+ HCC的复发时间最短。CK19和GPC3表达谱是HCC患者的独立预后指标,需要更大样本量进一步研究这种免疫分型模型在分层HCC患者预后方面的作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2994/4792431/f3fef2875e0b/pone.0151501.g001.jpg

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