实用肿瘤学杂志 ›› 2019, Vol. 33 ›› Issue (6): 491-496.doi: 10.11904/j.issn.1002-3070.2019.06.003

• 基础研究 • 上一篇    下一篇

EGFR,HER2和HER3在胆管癌中的表达及预后价值

詹琦, 周晟, 娄丽萍   

  1. 华中科技大学同济医学院附属同济医院病理研究所(武汉 430030)
  • 收稿日期:2019-07-17 修回日期:2019-10-10 发布日期:2019-12-28
  • 通讯作者: 娄丽萍,E-mail:louliping19@163.com
  • 作者简介:詹琦,女,(1984-),本科,初级病理技师,从事消化系统肿瘤的病理研究。

The expression and prognostic value of EGFR,HER2 and HER3 in cholangiocarcinoma

ZHAN Qi, ZHOU Sheng, LOU Liping   

  1. Institute of Pathology,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430030,China
  • Received:2019-07-17 Revised:2019-10-10 Published:2019-12-28

摘要: 目的 观察表皮生长因子受体(Epidermal growth factor receptor,EGFR)、表皮生长因子受体2(Human epidermal growth factor receptor 2,HER2)和表皮生长因子受体3(Human epidermal growth factor receptor 3,HER3)在胆管癌(Cholangiocarcinoma,CCA)组织中的表达情况,探讨其与CCA患者临床病理特征、总生存期和CCA细胞增殖的关系。方法 收集2009年1月—2013年10月于我院手术的CCA患者50例,并同时收取癌旁组织作为对照。采用免疫组织化学方法及RT-PCR方法检测CCA及癌旁组织中EGFR、HER2和HER3表达情况。收集患者临床病理参数,分析EGFR、HER2和HER3表达与CCA临床病理参数之间的关系。绘制Kaplan-Meier生存曲线,采用Log-rank检验和Cox比例风险模型分析EGFR、HER2和HER3表达情况与50例CCA患者术后总生存期之间的关系。采用RNA干扰方法敲低CCA细胞株QBC939中EGFR、HER2和HER3表达,Western blot检测EGFR、HER2和HER3敲低效果,MTT方法检测EGFR、HER2和HER3对QBC939细胞增殖的影响。结果 CCA组织中可检测到EGFR、HER2和HER3的阳性表达。临床病理特征关系分析结果显示,HER2表达与CCA淋巴结转移相关(P<0.05);而EGFR和HER3除与CCA淋巴结转移相关外,还与肿瘤分化程度相关(P<0.05)。EGFR、HER2和HER3阳性患者术后总生存期明显低于阴性患者(P<0.05)。敲低CCA QBC939细胞中EGFR、HER2和HER3表达后,QBC939细胞增殖能力显著降低(P<0.05)。结论 CCA组织中EGFR、HER2和HER3表达与患者总生存期密切相关,机制可能与促进CCA细胞的增殖相关。

关键词: 表皮生长因子受体, 表皮生长因子受体2, 表皮生长因子受体3, CCA, 增殖

Abstract: Objective The aim of this study was to observe the expression of human epidermal growth factor receptor(EGFR),epidermal growth factor receptor 2(HER2)and epidermal growth factor receptor 3(HER3)in cholangiocarcinoma(CCA),and to explore the relationship between the expression of EGFR,HER2,HER3 and the clinicopathological features,overall survival time and proliferation of CCA patients.Methods Fifty patients with CCA who underwent surgery in our hospital from January 2009 to October 2013 were enrolled,and their adjacent tissues were also collected as controls.Immunohistochemistry and qRT-PCR were used to detect the expression of EGFR,HER2 and HER3 in CCA and adjacent tissues.The clinicopathological parameters of patients were collected and the relationship between EGFR,HER2,and HER3 expression and clinicopathological parameters of CCA was analyzed.Kaplan-Meier survival curves were plotted,and the relationship between the expression of EGFR,HER2,and HER3 and total postoperative survival of 50 patients with CCA was analyzed using the Log-rank test and Cox proportional hazard model.The expression of EGFR,HER2 and HER3 in CCA QBC939 cell line was knocked down by RNA interference assay.The knockdown effect of EGFR,HER2 and HER3 was detected by Western blot.The effect of EGFR,HER2 and HER3 on proliferation of QBC939 cells was determined by MTT assay.Results The positive expression of EGFR,HER2 and HER3 was determined in CCA tissues.The relationship analysis of clinicopathological characteristics showed that the HER2 expression was associated with CCA lymph node metastasis(P<0.05).EGFR and HER3 was associated with CCA lymph node metastasis and correlated with cancer differentiation(P<0.05).The overall survival of patients with EGFR,HER2 and HER3 positive was significantly lower than that of negative patients(P<0.05).After knocking EGFR,HER2 and HER3 expression,the proliferation was significantly decreased in QBC939 cells(P<0.05).Conclusion The expression of EGFR,HER2 and HER3 in CCA tissues is closely related to the overall survival of patients,and the mechanism may be related to the promotion of proliferation of CCA cells.

Key words: Epidermal growth factor receptor, Human epidermal growth factor receptor 2, Human epidermal growth factor receptor 3, Cholangiocarcinoma, Proliferation

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