【关键词】 乳腺肿瘤;癌胚抗原;CA
Expressions of CEA and CA153 in the serum of breast cancer patients and their clinical significances
【Abstract】 AIM: To study the correlations between the expressions of carcinoembryonic antigen (CEA)and CA153 in the serum of breast cancer patients and the genesis, growth and metastasis of breast tumor. METHODS: We collected the serum from 60 patients, including 40 of breast cancer and 20 of benign breast diseases, and then detected the expressions of CEA and CA153 with radioimmunoassay. RESULTS: In 40 breast cancer patients, and the positive rates of CEA and CA153 were 32.5% and 47.5% respectively, the contents of CEA and CA153 were (21.55±6.96) μg/L and (37.63±23.22) U/mL respectively;they were obviously higher than those in the control group (20 benign breast disease patients) (P<0.01). There were positive correlations between the contents of CEA and CA153 and the histological grade, tumor size and the axillary lymph node metastasis (P<0.01). CONCLUSION: CEA and CA153 have close relations with the genesis, growth, biological behavior and metastasis of breast tumor. The comprehensive detection of these indexes is useful for the early diagnosis and beneficial for a good prognosis of breast cancer patients.
【Keywords】 breast neoplasms; carcino embryonic antigen; CA153 antigen; radioimmunoassay
【摘要】 目的: 研究乳腺癌患者血清中癌胚抗原(CEA)和癌相关粘蛋白抗原(CA153)表达与肿瘤的发生发展与转移的关系及其临床意义. 方法: 采集60例乳腺疾病入院患者的血清样本,其中乳腺癌40例,乳腺良性疾病20例,用放射免疫分析方法检测其血清中CEA和CA153含量. 结果: 在40例乳腺癌患者血清中CEA和CA153的阳性率分别为32.5%和47.5%, CEA和 CA153的血清含量分别为(21.55±6.96) μg/L和(37.63±23.22) U/mL,均高于对照组(P<0.01),乳腺癌患者CEA和CA153血清含量和阳性率与组织学分级,肿瘤大小,腋窝淋巴结转移有关(P<0.01). 结论: CEA和 CA153与乳腺癌的发生、发展,生物学特征以及转移有一定相关性,联合检测这些指标对乳腺癌的早期诊断和愈后判断有一定临床意义. 【关键词】 乳腺肿瘤;癌胚抗原;CA153抗原;放射免疫测定
0引言
乳腺癌是严重威胁妇女生命的常见恶性肿瘤,近年来其发病率呈逐年上升趋势,在某些大成市中已占妇女恶性肿瘤的首位[1]. 早期诊断与治疗,早期发现复发与转移,对乳腺癌的预后有重要意义. 肿瘤标志物癌胚抗原(CEA)可见于乳腺癌组织细胞表面,细胞表面糖蛋白(CA153)是目前乳腺癌的首选肿瘤标志物. 本研究应用放射免疫分析方法检测CEA和CA153在乳腺癌中的表达,探讨两者在乳腺癌发生发展中的作用,为乳腺癌的临床诊断和治疗提供一个辅助手段. 1对象和方法
1.1对象随机收集吉林省人民医院2006年间原发性乳腺癌40例,均行改良乳腺癌根治术,并经病理诊断. 其中乳腺浸润性导管癌20例,乳腺小叶癌15例,髓样癌5例,全部为女性,年龄23~78(平均49)岁. 对照组:乳腺良性疾病20例,其中经病理诊断为小叶增生8例,乳腺纤维腺瘤12例,亦全部为女性,年龄16~72(平均47)岁. 两组病例术前均未行放化疗. 年龄经检验(P>0.05). 1.2方法采集患者空腹静脉血3 mL尽快分离血清,置-80℃冰冻保存待检,用放射免疫分析方法检测血清中CEA和CA153含量,血清CEA试剂盒由潍坊三维生物工程集团有限公司生产,CEA血清正常参考值为15 μg/L, CA153检测亦采用放射免疫分析法(IRMA),血清CA153试剂盒由Centocor公司生产,正常值20 U/mL,按说明书操作. 结果判断: 以试剂盒给定的阳性界值,CEA为15 μg/L. CA153为20 U/mL,高于正常值为阳性. 组织学分级: 采用BloomRichardson系统Nottingham改良方案[2],将分化程度从高到低分为Ⅰ, Ⅱ, Ⅲ级. CEA和CA153联检中如果有一项为阳性者即为阳性病例. |