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    • 4. 发明公开
    • Antibody having high affinity to methamphetamine and immunogen for obtaining the same
    • 抗体与甲基苯丙胺高亲和性和免疫原适合用于其生产。
    • EP0359063A2
    • 1990-03-21
    • EP89116185.3
    • 1989-09-01
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Miyazaki, JinseiTaketani, MakotoMitsumata, Tadayasu
    • G01N33/94C12P21/08C12N5/00
    • G01N33/531A61K47/646C07K16/44
    • In producing an antibody using a low molecular substance as an antigen, it is necessary to immunize with an immunogen which is prepared by binding the antigen to protein. Therefore, it is difficult to pro­duce an antibody having a high affinity to the antigen. According to the present invention, investigations were made, paying attention to the molecular structure, especially the structure at the site binding to protein, of the antigen in production of the immunogen. As the result, there is used a process which comprises pre­paring an antigen derivative (e.g., aminobutyl amphet­amine) using a compound (e.g., amphetamine) having such a structure that an alkyl group of the desired antigen (e.g., methamphetamine) is replaced with hydrogen atom, and then binding the antigen derivative with protein. Immunization using the thus obtained immunogen gives an antibody having a high affinity to methamphetamine and improved sensitivity of immunoassay by about 1000 times. Furthermore, by this immunogen, a monoclonal antibody having a high affinity to methamphetamine can be produced.
    • 在使用低分子物质作为抗原在抗体产生,有必要在所有的免疫原性是由抗原结合蛋白制备的免疫。 因此,难以制造在具有对抗原的高亲和性抗体。 。根据本发明,调查在生产免疫原性的被做了,关注的分子结构,在现场结合蛋白爱尤其是结构抗原。 其结果,有使用方法,它包括制备抗原衍生物(例如,氨基丁基苯丙胺),使用的化合物(例如,安非他明),其具有检测的结构确实烷基所需抗原的基团(例如,甲基苯丙胺)与氢气置换 原子,然后与结合蛋白的抗原衍生物。 免疫使用如此获得的免疫原性抗体的给出了约1,000倍不必甲基苯丙胺和改进的免疫测定的灵敏度的高亲和力。 进一步,由该免疫原性,能够制造具有对甲基苯丙胺的高亲和性的单克隆抗体。