MONOCLONAL ANTIBODY SPECIFIC TO ANTI-HUMAN FIBRIN MONOMER, PROCESS FOR PRODUCING THE SAME, HYBRIDOMAS, AND IMMUNOASSAY METHOD
申请人:NISSUI PHARMACEUTICAL CO., LTD.
公开号:EP0922761A1
公开(公告)日:1999-06-16
Provided are a monoclonal antibody making it possible to detect a native fibrin monomer, which are produced at the initial state of blood coagulation, and soluble fibrin; a hybridoma; and an immunoassay for assaying the initial stage of blood coagulation highly sensitively, and promptly, using the monoclonal antibody. Using a fibrinogen analogous compound in blood as an immune source, cell fusion is carried out to prepare a monoclonal antibody which is not reactive with fibrinogen and is specifically and simultaneously reactive with a native fibrin monomer (that is, a fibrin monomer which is present in a body fluid, in particular in blood, and is not solubilized) and soluble fibrin. The fibrin monomer analogous compound is preferably fibrinogen treated with bathroxobin, which is a snake venom.
本发明提供了一种可检测血液凝固初始状态下产生的原生纤维蛋白单体和可溶性纤维蛋白的单克隆抗体;一种杂交瘤;以及一种使用该单克隆抗体高灵敏、快速地检测血液凝固初始阶段的免疫测定法。利用血液中的纤维蛋白原类似化合物作为免疫源,通过细胞融合制备单克隆抗体,该抗体对纤维蛋白原不产生反应,而对原生纤维蛋白单体(即存在于体液中,特别是血液中,未溶解的纤维蛋白单体)和可溶性纤维蛋白具有特异性并同时产生反应。纤维蛋白单体类似化合物最好是用蛇毒巴曲酶处理过的纤维蛋白原。