国际肿瘤学杂志 ›› 2015, Vol. 42 ›› Issue (7): 501-503.doi: 10.3760/cma.j.issn.1673-422X.2015.07.006

• 论著 • 上一篇    下一篇

TTF-1蛋白和CgA蛋白在小细胞肺癌中的表达及其临床意义

胡思钦,张明辉,石琼,王艳   

  1. 150081 哈尔滨医科大学附属肿瘤医院内五科
  • 出版日期:2015-07-08 发布日期:2015-05-26
  • 通讯作者: 王艳 E-mail:wangyan86298263@163.com
  • 基金资助:

    黑龙江省自然科学基金(H201335)

Expression and significance of TTF1 and CgA in small cell lung carcinoma

Hu Siqin, Zhang Minghui, Shi Qiong, Wang Yan   

  1. Fifth Department of Medical Oncology, Affiliated Tumor Hospital of Harbin Medical University, Harbin 150081, China
  • Online:2015-07-08 Published:2015-05-26
  • Contact: Wang Yan E-mail:wangyan86298263@163.com

摘要: 目的探讨甲状腺转录因子1(TTF1)蛋白和嗜铬蛋白粒A(CgA)蛋白在小细胞肺癌(SCLC)中的表达及其临床意义。方法采用免疫组织化学法检测68例SCLC组织和20例正常肺组织中TTF1蛋白和CgA蛋白的表达情况,分析其与SCLC临床特征的关系。结果TTF1蛋白和CgA蛋白在SCLC中的表达率分别为88.2%(60/68)和70.6%(48/68),均明显高于正常肺组织的10.0%(2/20)和5.0%(1/20)(χ2=45.442,P=0.000;χ2=26.941,P=0.000)。TTF1蛋白的表达与患者年龄、性别、肿瘤大小无关,而与吸烟指数(χ2=4.131,P=0.042)、淋巴结转移(χ2=5.488,P=0.019)、临床分期(χ2=6.011,P=0.014)密切相关;CgA蛋白的表达与患者年龄、性别、肿瘤大小、吸烟指数无关,而与淋巴结转移(χ2=9.895,P=0.002)、临床分期(χ2=4.145,P=0.042)密切相关。结论TTF1和CgA蛋白在SCLC高表达,尤其是有淋巴结转移和广泛期患者。

关键词: 癌, 小细胞, 嗜铬粒蛋白质A, 免疫组织化学, 甲状腺转录因子-1

Abstract: ObjectiveTo investigate the expression and clinical significance of thyroid transcription factor1 (TTF1) and chromogranin A (CgA) in small cell lung cancer (SCLC). MethodsThe expressions of TTF1 and CgA protein in 68 cases of SCLC tissues and 20 cases of normal lung tissues were examined by immunohistochemistry method, and their correlations with clinical features of SCLC were analyzed. ResultsThe positive rates of TTF1 and CgA protein in SCLC were 88.2% (60/68) and 70.6% (48/68), respectively, and they were higher than those in normal lung tissue [10.0%(2/20) and 5.0%(1/20); χ2=45.442, P=0.000; χ2=26.941, P=0.000]. The expression of TTF1 protein was not related to the patients′ age, sex and tumor size, while closely related to smoking index (χ2=4.131, P=0.042), lymph node metastasis (χ2=5.488, P=0.019) and clinical stage (χ2=6.011, P=0.014). The expression of CgA protein was not related to the patients′ age, sex, tumor size and smoking index, while closely related to lymph node metastasis (χ2=9.895, P=0.002) and clinical stage (χ2=4.145, P=0.042). ConclusionTTF1 and CgA protein are highly expressed in SCLC, especially in the patients with lymph node metastasis and extensive disease.

Key words: Carcinoma, small cell, Chromogranin A, Immunohistochemistry, Thyroid transcription factor-1