首都医科大学学报 ›› 2009, Vol. 30 ›› Issue (3): 289-292.doi: 10.3785/j.issn.1006-7795.2009.03.007

• 肿瘤学 • 上一篇    下一篇

卵巢癌组织中鸟氨酸脱羧酶基因过度扩增及其临床意义

丁翔1, 李红霞2   

  1. 1. 北京市海淀区妇幼保健院产科;2. 北京世纪坛医院妇产科
  • 收稿日期:2009-03-18 修回日期:1900-01-01 出版日期:2009-06-21 发布日期:2009-06-21
  • 通讯作者: 李红霞

Clinical Significance of Ornithine Decarboxylase Overexpression in Ovarian Carcinoma

DING Xiang1, LI Hong-xia2   

  1. 1. Department of Obstetrics, Beijing Haidian District External & Children Hospital;2. Department of Obstetrics & Gynecology, Beijing Shijitan Hospital
  • Received:2009-03-18 Revised:1900-01-01 Online:2009-06-21 Published:2009-06-21

摘要: 目的 检测鸟氨酸脱羧酶(ornithine decarboxylase,ODC)基因在卵巢癌组织、癌旁组织及卵巢良性肿瘤中的表达,探讨ODC过度扩增在卵巢肿瘤发生、发展中的作用。方法 应用RT-PCR方法检测40例卵巢癌组织、15例癌旁正常卵巢组织、15例卵巢良性肿瘤中ODC基因的表达,比较ODC在不同卵巢组织中的阳性表达率。结果 ODC在癌旁正常卵巢组织中表达率为26.67%,在15例卵巢良性肿瘤组织中均无表达,在卵巢癌组织中表达率为65%。统计学分析结果显示ODC在卵巢癌组织的表达明显高于癌旁正常卵巢组织和卵巢良性肿瘤,差异均有统计学意义(P<0.05);ODC在浆液性癌表达阳性率为83.33%,较其他类型卵巢恶性肿瘤的50.00%明显增加,差异有统计学意义(P=0.028)。在Ⅰ,Ⅱ期患者ODC阳性率为54.55%,其中强阳性2例;Ⅲ,Ⅳ期患者ODC阳性率68.97%,其中强阳性17例,两者相比差异无统计学意义(P=0.469),而强阳性率Ⅲ,Ⅳ期为58.62%明显高于Ⅰ,Ⅱ期的18.18%,差异有统计学意义(P=0.034)。在中、高分化癌组织中ODC强阳性表达率为20%,低分化癌组织中强阳性表达率为64%,差异有统计学意义(P=0.018)。在癌旁正常卵巢组织中ODC表达较卵巢良性肿瘤有增高趋势,但差异无统计学意义(P=0.10)。结论 ODC过度扩增可能在卵巢癌的发生、发展中起重要作用。

关键词: 卵巢癌, 鸟氨酸脱羧酶, 基因

Abstract: Objective To study the overexpression of ornithine decarboxylase(ODC) gene in different types of ovarian tissues, which include normal ovarian tissues surrounding tumors, ovarian binign and ovarian carcinomas, and to determine the role of ODC overexpression in ovarian cancer development and progression. Methods We analyzed ODC gene expression by reverse transcription-polymerase chain reaction in invasive ovarian carcinoma tissues from 40 cases, normal ovarian tissues surrounding tumors from 15 cases and in ovarian benign tumors from 15 cases. The expression of ODC gene was compared in different ovarian tissues. Results Expression of ODC gene was observed in 26.67%(4 of 15) normal ovarian tissues surrounding tumors, 0 %(0 of 15) ovarian benign tumors, and 65%(26 of 40) ovarian carcinomas. The results confirmed that expression of ODC gene was common in the majority of ovarian carcinomas. Compared to normal ovarian tissues surrounding tumors and ovarian benign tumors, expression of ODC gene was significantly high in ovarian carcinomas(P<0.05), but the expression of ODC in normal ovarian tissues surrounding tumors and ovarian benign tumors were at the same level. ODC expression rate in serous carcinoma was 83.33%, significantly higher than that in the other tumor types(50.00%, P=0.028). ODC expression rate in Stage Ⅰ-Ⅱ tumors was 54.55%, which included 2 strongly positive samples. In stage Ⅲ-Ⅳ of tumors, ODC expression rate was 68.97%, which included 17 strongly positive samples. There was no significant difference between the two groups(P=0.469). But the strongly positive rates in stage Ⅲ-Ⅳ and stage Ⅰ-Ⅱ tumors were 58.62% and 18.18%, respectively, the difference between them was significant(P=0.034). ODC expression rate was 20% in highly-moderately differentiated tumors, and 64% in poorly differentiated tumors, the difference was significant(P=0.018). Conclusion Overexpression of ODC gene is associated with ovarian cancer development and progression.

Key words: ovarian carcinoma, ornithine decarboxylase(ODC), gene

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