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作 者:吴佩[1,2] 芮景[1,2] 袁平[1,2] 马毅[1,2] 张有贵 吴采月[1,2]
机构地区:[1]皖南医学院弋矶山医院普外科皖南医学院病理教研室 [2]皖南医学院弋矶山医院核医学科
出 处:《中国肿瘤临床》1998年第5期325-328,共4页Chinese Journal of Clinical Oncology
基 金:国家自然科学基金
摘 要:目的:观察大肠癌患者血清胃泌素及肿瘤组织的GAS表达情况。方法:采用放射免疫及免疫组化技术测定70例大肠癌患者血清胃泌素水平。结果:胃泌素阳性表达率,中、低分化癌比高分化癌为高;粘液腺癌、印戒细胞癌、未分化腺癌较乳头状腺癌和管状腺癌为高,差异均非常显著(P<0.01)。结论:胃泌素阳性细胞过度表达可能是大肠癌分化不良的一个标志,且可能是肿瘤恶性程度增高的原因之一。血清胃泌素测定对诊断大肠癌灵敏度和特异性不高,但由于其升高为癌组织胃泌素阳性表达所致,与肿瘤的分化程度、恶性度、大小及分期密切相关。大肠癌病人术前血清胃泌素水平增高,则提示其肿瘤恶性程度较高,分期较晚,预后不良。Gastrin content and serum level in 70 cases of colorectal cancer were determined by immunohistochemically and radioimmunologically.The results showed that the positive rates of gastrin reaction of moderately and poorly differentiated cancers were significantly higher than that of well differentiated cancer,and that the in mucinous adenocarcinoma,signetring cell carcinoma and undifferentiated adenocarcinoma gastrin presence was significantly higher than in pillary and tubular adenocarcinoma(P<001).It was suggested that overexpression of gastrin signifies poorly differentiated colorectal cancer.The sensitivity and specificity of determing serum gastrin level for colorectal cancer are not high,yet,the serum gastrin level corelatead well with the differentiation and clinicopathological stage of colorectal cancer.A high preoperative gastrin level usually denotes high malignancy,advanced stage and poor prognosis of colorectal cancer.
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