Detection of carcinoembryonic antigen and related antigens in sera of patients with gastrointestinal tumors using monoclonal antibodies in double-determinant radioimmunoassays.

Detection of carcinoembryonic antigen and related antigens in sera of patients with gastrointestinal tumors using monoclonal antibodies in double-determinant radioimmunoassays.
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双决定簇放射免疫分析中使用单克隆抗体检测胃肠道肿瘤患者血清中的癌胚抗原和相关抗原。

DOI:
10.1089/hyb.1983.2.329
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发表时间:
1983
期刊:
影响因子:
--
通讯作者:
Koprowski,H
Koprowski,H
中科院分区:
--
文献类型:
--
作者:
Herlyn,M;Blaszczyk,M;Sears,HF;Verrill,H;Lindgren,J;Colcher,D;Steplewski,Z;Schlom,J;Koprowski,H

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在6个不同的实验室生产的14种单克隆抗体中,有13种与纯化的癌胚抗原(CEA)制剂结合。所有抗体均与大肠癌细胞株的培养液反应。竞争结合研究表明,在CEA分子上检测到代表6个不同组的12种不同抗原决定簇。本文用六种抗体对311例胃肠道疾病患者和正常人血清进行了CEA及CEA相关抗原的双决定簇放射免疫测定。没有高达115个健康供体的血清中有升高的抗原水平与四个测试的六种单克隆抗体,而高达9%的血清显示升高的抗原水平时,用两种抗体测试。1.4%和4.4%之间的血清与炎症和良性肿瘤性疾病的胃肠道患者是阳性的。晚期胃肠道肿瘤患者血清中56%至75%(取决于所用抗体)的抗原水平升高。这些初步结果表明,双决定簇免疫测定与一个面板的单克隆抗体可能会改善传统的CEA检测,通过减少假阳性血清检测的良性炎症性肠病患者的多克隆血清的数量。
Of 14 monoclonal antibodies produced in six different laboratories, 13 bound to purified preparations of carcinoembryonic antigen (CEA). All antibodies reacted to spent medium of colorectal carcinoma cell lines. Competitive binding studies indicated that 12 different antigenic determinants representing six different groups were detected on the CEA molecule(s). Six antibodies were used in double determinant radioimmunoassays (RIA) to detect CEA and CEA-related antigens in sera of 311 patients with various gastrointestinal diseases and of normal donors. None of up to 115 sera of healthy donors had elevated antigen levels with four out of the six monoclonal antibodies tested, whereas up to 9% of sera showed elevated antigen levels when tested with two antibodies. Between 1.4% and 4.4% of sera from patients with inflammatory and benign neoplastic diseases of the gastrointestinal tract were positive. Antigen levels were elevated in 56 to 75% (depending on antibody used) of sera from patients with advanced gastrointestinal tumors. These preliminary results indicate that double-determinant immunoassays with a panel of monoclonal antibodies might improve conventional CEA assays by reducing the number of false positive sera detected by polyclonal sera in patients with benign inflammatory bowel diseases.
癌胚抗原 (CEA):证明 CEA 与正常糖蛋白之间的部分同一性。
DOI: --
发表时间: 1972
期刊: Immunochemistry
影响因子: --
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J. Mach;G. Pusztaszeri
通讯作者: G. Pusztaszeri
DOI: --
发表时间: 1982
期刊: JIM - Journal of Immunological Methods
影响因子: --
作者:
F. Buchegger;Mai Phan;Denis Rivier;S. Carrel;R. Accolla;Jean
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DOI: --
发表时间: 1983
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Wagener,C;Yang,YH;Crawford,FG;Shively,JE
通讯作者: Shively,JE
与癌胚抗原反应的单克隆抗体与人乳腺和非乳腺肿瘤的差异结合。
DOI: 10.3109/07357908309042415
发表时间: 1983
影响因子: 2.4
作者:
D. Colcher;P. Hand;M. Nuti;J. Schlom
通讯作者: J. Schlom
癌胚抗原和相关抗原的单克隆抗体作为模型系统:在溶液相免疫测定中使用生物素标记的抗体和亲和素作为沉淀剂测定单克隆抗体的亲和力和特异性。
DOI: --
发表时间: 1983
影响因子: 4.4
作者:
C. Wagener;B. Clark;K. J. Rickard;J. Shively
通讯作者: J. Shively