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• 临床研究 • 上一篇    下一篇

细胞角蛋白18基因诊断胃癌淋巴结微转移

续 薇1,张明威2,黄 晶1,王 欣1,许淑芬1   

  1. 1. 吉林大学第一医院检验科,吉林 长春 130021;2.吉林大学第二医院普外科,吉林 长春 130041
  • 收稿日期:2003-08-11 修回日期:1900-01-01 出版日期:2004-01-28 发布日期:2004-01-28

Diagnosis of micrometastasis in lymph nodes of patientswith gastric cancer by using CK18 mRNA RT-PCR

XU Wei1, ZHZNG Ming-wei2, HUANG Jing1, WANG Xin1, XU Shu-fen1   

  1. 1. Department of Laboratory, First Hospital, Jilin University, Changchun 130021, China;2. Department of General Surgery, Second Hospital,Jilin University, Changchun 130041,China
  • Received:2003-08-11 Revised:1900-01-01 Online:2004-01-28 Published:2004-01-28

摘要: 目的:建立RT-PCR检测细胞角蛋白-18(CK18)mRNA表达的方法,判断胃癌淋巴结内微转移状况,探讨18 mRNA表达在胃癌患者淋巴结微转移中的临床意义。方法:以细胞角蛋白18 mRNA为标志基因,用RT-PCR法检测35例胃癌的298枚淋巴结及良性胃病变的淋巴结20枚。结果:对照的良性胃病变淋巴结无CK18 mRNA表达,胃癌组的298枚淋巴结病理检查阳性99枚(33.2%),而RT-PCR法检测细胞角蛋白阳性133枚(44.6%),差异有显著性(P<0.05)。病理检查为阴性的199枚中,经CK18 mRNA RT-PCR法检测有34枚阳性(17.1%)。 结论:用RT-PCR法检测胃癌淋巴结CK18 mRNA是诊断胃癌淋巴结微转移敏感而特异的方法,对判断预后、指导术后治疗有重要意义。

关键词: 诊断, 微转移, 角蛋白, 诊断应用, 逆转录聚合酶链反应

Abstract: Objective To study the micrometastasis in lymph nodes of the patients with gastric cancer and its clinical significances. Methods Reverse transcription-polymerase chain reaction (RT-PCR) was used to detect CK18 mRNA expression in 298 lymph nodes from 35 patients with gastric cancer and 20 lymph nodes from control group. Results There was no CK18 mRNA expression in control group. In experimental group, the positive rates of CK18 mRNA expression detected with routine histology and RT-PCR were 33.2% (99/298) and 44.6% (133/298),respectively,there was significant difference (P<0.05). Of lymph nodes in which routine histology failed to find metaslasis, 17.1% lymph nodes were found the micrometastasis by CK18 mRNA RT-PCR. Conclusion CK18 mRNA RT-PCR is more sensitive than routine histology for detecting the micrometastasis in lymph nodes of gastric cancer, and has important clinical significances in evaluating clinical staging, predicting prognosis and directing postoperative treatment.

Key words: diagnosis, micrometatasis, keratin, diagnostic use, reverse transcriptase polymerase chain reaction

中图分类号: 

  • R730.43