癌变·畸变·突变 ›› 2010, Vol. 22 ›› Issue (2): 134-137.doi: 10.3969/j.issn.1004-616x.2010.02.014

• 肿瘤防治 • 上一篇    下一篇

p73基因在反应性增生性淋巴结炎及滤泡性淋巴瘤中的表达

杨开颜1;金珍琳2;俞康2;王素芬1   

  1. 1. 温州医学院附属第一医院病理科,浙江 温州 325000; 2. 温州医学院附属第一医院血液科,浙江 温州 325000
  • 收稿日期:2009-09-14 修回日期:2009-11-27 出版日期:2010-03-30 发布日期:2010-03-30
  • 通讯作者: 杨开颜

Expression of p73 in reactive hyperplastic lymphadenitis and follicular lymphomas

YANG Kai-yan1;JIN Zhen-lin2;YU Kang2;WANG Su-fen1   

  1. 1. The Pathology Department of Affiliated Hospital of Wenzhou Medical College,Wenzhou 325000; 2. The Hematology Department of Affiliated Hospital of Wenzhou Medical College,Wenzhou 325000, Zhejiang, China
  • Received:2009-09-14 Revised:2009-11-27 Online:2010-03-30 Published:2010-03-30
  • Contact: YANG Kai-yan

摘要: 目的: 检测P73蛋白和p73 mRNA在反应性增生性淋巴结炎(reactive hyperplastic lymphadenitis,RHL)及滤泡性淋巴瘤(follicular lymphoma,FL)中的表达。同时对p73基因的甲基化状态进行研究,初步探讨p73基因和基因修饰状态在RHL和FL发生发展中的作用。 方法: 应用免疫组化法检测20例RHL及18例FL中P73蛋白的表达情况。用逆转录聚合酶链反应技术(RT-PCR)检测p73 mRNA在RHL、FL中的表达情况。采用甲基化特异性PCR(MSP)方法检测RHL、FL中p73基因第1外显子区域5′-CpG岛的甲基化状态。 结果: 12例FL(12/18,66.7%)和16例RHL(16/20,80%) P73蛋白表达呈阳性。P73蛋白在FL中的阳性率与RHL相比差别无统计学意义(P>0.05)。RT-PCR结果显示p73基因在FL中的阳性表达率稍低于RHL,但差异无统计学意义(P>0.05)。甲基化检测结果显示FL中仅有2例(2/18,11.1%)出现p73基因甲基化,而这2例标本均未表达p73 mRNA及蛋白。在RHL中,未检测到p73基因甲基化。结论: p73基因在FL和RHL中的表达无明显差别,且其甲基化在二者中并不常见。

关键词: 反应性增生性淋巴结炎, 滤泡性淋巴瘤, p73, 甲基化

Abstract: OBJECTIVE: To detect the expression of P73 protein and p73 mRNA in reactive hyperplasitic lymphadenitis(RHL) and follicular lymphomas(FL). To explore the relationship between p73 gene and its methylation status. To explore and discuss the possible roles of p73 gene in the development and progression of RHL and FL. METHODS: P73 protein expression was detected in 20 cases of RHL and 18 cases of FL by immunohistochemistry. Reverse transcriptase polymerase chain reaction (RT-PCR) was used to observe p73 mRNA expression. We also used the methylation-specific polymerase chain reaction(MSP) to detect the methylation state of p73 gene CD,FL and RHL. RESULTS: P73 protein expression was positive in 12 of 18 FL and 16 of 20 in RHL by immunohistochemistry. The expression rates of p73 mRNA were the same in FL and RHL(P>0.05). Methylation of p73 gene was found in 2 cases of 18 FL(11.1%), while p73 mRNA and protein expression were not found in these. No methylation of p73 gene was found in FL. CONCLUSION: There was no statistically significant differences of p73 expression between RHL and FL. Methylation of p73 was uncommon in FL and RHL.

Key words: reactive hyperplasitic lymphadenitis, follicular lymphoma, p73, methylation

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