자궁경부 상피내종양과 침윤성 자궁경부암에서의 Fhit와 p53 단백 발현양상
The Pattern of Fhit and p53 Expression in Cervical Intraepithelial Neoplasm and Invasive Cervical Cancer
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목적 : 자궁경부 상피내종양과 침윤성 자궁경부암에서의 Fhit와 p53 단백 발현양상을 분석하고 침윤성 자궁경부암에서 Fhit 단백 발현 소실과 임상병리학적 변수와의 상관관계를 규명하고자 본 연구를 시행하였다. 연구 방법 : 10예의 저등급 편평상피내병변, 16예의 고등급 편평상피내병변, 그리고 21예의 침윤성 자궁경부암 환자를 대상으로 자궁경부 상피내종양과 침윤성 자궁경부암에서의 Fhit와 p53 단백 발현양상을 면역조직화학적 염색을 이용하여 반정량적 측정방법으로 비교분석하였다. 결과 : 자궁경부 상피내종양에 비해 침윤성 자궁경부암은 Fhit 단백 발현 소실이 유의하게 높게 나타났으나 p53 발현양상은 두 질환 사이에 유의한 차이가 없었다. 자궁경부 상피내종양과 침윤성 자궁경부암에서의 Fhit 단백 발현 소실과 p53 발현은 연관성이 없었으나, Fhit 단백 발현 소실은 여러 예후인자 중 FIGO 임상병기와 유의한 상관관계가 있었다. 결론 : 본 연구의 결과는 Fhit 단백 발현 소실은 자궁경부 상피내종양에서 침윤성 자궁경부암으로 진행되는 과정에서 중요한 역할을 할 것으로 기대된다. 따라서 자궁경부암 진행에 있어 Fhit의 역할에 대한 규명을 위해서는 추가로 더 많은 증례를 대상으로 한 분자생물학적 연구가 필요할 것으로 사료된다.
Abstract
Objective : To evaluate Fragile histidine triad (Fhit) and p53 expression pattern in cervical intraepithelial neoplasm (CIN) and invasive cervical cancer, and to verify the correlation between the loss of Fhit and clinicopathological parameters of invasive cervical carcinoma and the relationship between Fhit and p53 expression. Methods : 10 low-grade squamous intraepithelial lesions (LSIL), 16 high-grade squamous intraepithelial lesions (HSIL), and 21 invasive cervical carcinomas were evaluated by immunohistochemical staining for Fhit and p53 primary antibody. Their expression patterns in CIN and invasive cervical cancer were analysed semiquantitatively as positive and negative by the staining area and intensity. Clinicopathological data were obtained by review of patients’ hospital records. Results : Compared with CIN (LSIL and HSIL), invasive cervical carcinoma showed significantly loss of Fhit expression (p<0.05). P53 expression did not show the significant difference between CIN and invasive cervical cancer. There was no relationship between loss of Fhit and p53 expression in CIN and invasive cervical cancer. But loss of Fhit expression in invasive cervical cancer was also significantly associated with FIGO stage (p<0.05). Conclusion : Our results suggest that loss of Fhit expression may play an important role in the malignant transformation of CIN to invasive cancer. However, further molecular studies are needed to elucidate the role of Fhit gene in the carcinogenesis of cervical cancer.
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