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p63、p73在外阴鳞癌中的表达及临床意义
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摘要
目的:
     观察p63、p73蛋白在外阴鳞状上皮细胞癌中的表达情况,探讨p63、p73蛋白在外阴鳞状上皮细胞癌发生发展中的作用。方法:
     应用免疫组化技术检测p63、p73蛋白在20例正常外阴组织,30例外阴上皮内瘤变组织以及44例外阴鳞状上皮细胞癌组织中的表达水平。
     结果:
     1.p63蛋白在正常外阴组织,外阴上皮内瘤变组织及外阴鳞癌组织中均可表达。外阴上皮内瘤变组织p63蛋白阳性表达率显著高于正常外阴组织p63蛋白阳性表达率(P<0.05);外阴鳞癌组织p63蛋白阳性表达率明显高于外阴上皮内瘤变组织p63蛋白阳性表达率(P<0.05)。
     2.p63表达与手术病理分期和腹股沟淋巴结转移情况有关,与患者年龄、肿瘤位置、组织学分级等临床病理特征无关。
     3.p63表达与外阴鳞癌不良预后相关,p63低表达阳性组累积3年总生存率高于p63高表达阳性组(p<0.05)。
     4.p73蛋白在正常外阴组织,外阴上皮内瘤变组织和外阴鳞癌组织中均可表达;外阴上皮内瘤变组织p73蛋白阳性表达率显著高于正常外阴组织p73蛋白阳性表达率(P<0.05);外阴鳞癌组织p73蛋白阳性表达率明显高于外阴上皮内瘤变组织p73蛋白阳性表达率(P<0.05)。
     5.p73表达与腹股沟淋巴结转移情况有关,与患者年龄、肿瘤位置、手术病理分期、组织学分级等临床病理特征无关。
     6.相关性分析显示:p63和p73蛋白在外阴鳞癌中的表达呈正相关(rs=0.438,P=0.03)。
     结论:
     在外阴鳞癌中,p63、p73蛋白表达均明显增强。两者异常表达与外阴鳞癌恶性生物学行为密切相关,p63和p73共同参与外阴鳞癌发生发展。p63异常表达与外阴鳞癌不良预后相关,可以做为外阴鳞癌预后的观察指标。
Objective:
     To investigate the expression of p63 and p73 protein in human vulvar squamous cell carcinoma, to explore the role of p63 and p73 in the tumorigenesis and progression of human vulvar squamous cell carcinoma.
     Methods:
     The expression of p63 and p73 were detected by immunohistochemistry in 20 normal vulvar tissuses,30 vulvar intraepithelial neoplasias and 44 human vulvar squamous cell carcinomas.
     Results:
     1. p63 protein was detected in normal vuluar tissue, vulvar intraepithelial neoplasia and human vulvar squamous cell carcinoma. The rate of p63 protein expression in vulvar intraepithelial neoplasia was considerably higher than that in normal vulvar tissuse (P<0.05). The positive expression rate for p63 protein in human vulvar squamous cell carcinoma was so much higher than that in vulvar intraepithelial neoplasia (P<0.05).
     2. The level expression of p63 was relevant with tumor staging and lymphatic metastasis of vulvar squamous cell carcinoma, while the expression of p63 had no relationship with age, localization and Pathological grading.
     3. The abnormal expression of p63 protein was associated with the poor prognosis of vulvar squamous cell carcinoma. The 3-year survival rate for the low expression of p63-Postive was higher than that of the high expression of p63-Postive (p<0.05).
     3. p73 protein was detected in normal vuluar tissue, vulvar intraepithelial neoplasia as well as human vulvar squamous cell carcinoma. The rate of p73 protein expression in vulvar intraepithelial neoplasia was higher than that in normal vulvar tissuse (P<0.05). The positive expression rate for p73 protein in human vulvar squamous cell carcinoma was much higher than that in vulvar intraepithelial neoplasia(P<0.05).
     4. The expression of p73 correlated with lymphatic node metastasis, while the expression of p73 had no relationship with age, localization, Pathological grading and tumor staging in vulvar squamous cell carcinoma.
     5.There was a positive correlation between p63 and p73 protein in vulvar squamous cell carcinoma.
     Conclusions:
     The expression p63 and p73 protein are increasing in vulvar squamous cell carcinoma. Their abnormal expression maybe associated with malignant biologial behavior. p63 and p73 have dependent fuction in generation, development and invasion of vulvar squamous cell carcinoma. Furthermore, the expression of p63 may provide useful prognosis implication and be an useful prognosis maker for vulvar squamous cell carcinoma.
引文
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