中华皮肤科杂志 ›› 2009, Vol. 42 ›› Issue (12): 828-830.

• 论著 • 上一篇    下一篇

蕈样肉芽肿T细胞受体γ单克隆性基因重排研究

马一平1,卢宪梅2,周桂芝3,陈学超3   

  1. 1. 南京 中国医学科学院北京协和医学院皮肤病研究所
    2. 济南市山东省皮肤病防治研究所
    3. 济南市山东省皮肤病性病防治研究所
  • 收稿日期:2008-12-16 修回日期:2009-03-02 出版日期:2009-12-15 发布日期:2012-03-27
  • 通讯作者: 马一平 E-mail:mayipingg@sohu.com
  • 基金资助:

Detection of T cell receptor gamma gene rearrangements in mycosis fungoides

  • Received:2008-12-16 Revised:2009-03-02 Online:2009-12-15 Published:2012-03-27

摘要:

目的 探讨T细胞受体γ(TCR-γ)基因重排在蕈样肉芽肿(MF)诊断中的意义,寻找一种较为敏感的基因诊断方法。方法 以TCR-γ基因的Vγ8、Vγ9 、Vγ10、Vγ11、Jγ1-2为引物,利用PCR-琼脂糖凝胶电泳方法检测共50份标本的基因重排情况,其中30例MF患者的皮损标本33份,淋巴结标本2份;15例炎症性皮肤病患者的15份皮损标本。结果 30例MF患者的33份皮肤标本,共有29份检测到TCR-γ基因单克隆性重排的条带,总阳性率为88%。15份炎症性疾病皮肤标本中,共有5份检测到TCR-γ基因单克隆性重排的条带,阳性率为33%。结论 TCR-γ基因重排检测可以应用于MF的诊断与鉴别诊断,但只能作为一种辅助诊断方法。

关键词: 基因重排,γ链T细胞抗原受体

Abstract:

Objective To assess the diagnostic significance of T cell receptor gamma gene rearrange- ments in mycosis fungoides (MF), so as to develop a sensitive diagnosis tool. Methods A total of 50 speci- mens were collected, including 33 skin lesion specimens and 2 lymph specimens from 30 patients with MF, 15 skin lesion specimens from 15 patients with inflammatory dermatoses. PCR was performed with specific primers targeting TCR V gamma 8, 9, 10, 11 to detect T cell receptor gamma gene rearrangement. Results Monoclonal rearrangements of TCR gene was observed in 88% (29/33) of specimens from patients with MF and 33% (5/15) of samples from patients with inflammatory dermatoses. Conclusions The detection of TCR gene rearrangements, as an ancillary test, is useful in the diagnosis and differential diagnosis of MF.