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    • 71. 发明申请
    • HUMAN CD26 AND METHODS FOR USE
    • 人类CD26及其使用方法
    • WO1993016102A1
    • 1993-08-19
    • PCT/US1992002892
    • 1992-04-09
    • DANA-FARBER CANCER INSTITUTE, INC.
    • DANA-FARBER CANCER INSTITUTE, INC.MORIMOTO, ChikaoSCHLOSSMAN, Stuart, F.TANAKA, Toshiaki
    • C07K03/28
    • C12N9/48C07K14/70589C07K16/289C07K16/40C12N9/16
    • A polypeptide fragment of CD26 (or analogs thereof) capable of disrupting the naturally-occuring binding interaction between CD45 and CD26, and a method of screening such compounds to identify compounds capable of inhibiting the binding of CD26 to CD45, which method includes the steps of: a) providing a first and a second sample of cells expressing both CD26 and CD45; b) incubating the first sample in the presence of a candidate compoud; c) incubating the second sample in the absence of the candidate compound; d) generating a first immunoprecipitate by adding to the first sample a first aliquot of an anti-CD26 antibody; e) generating a second immunoprecipitate by adding to the second sample a second aliquot of the antibody; and f) determining whether the amount of CD45 present in the first immunoprecipitate is less than the amount of CD45 present in the second immunoprecipitate, the presence of a lesser amount of CD45 in the first immunoprecipitate than in the second immunoprecipitate indicating that the candidate compound inhibits the binding.
    • 能够破坏CD45和CD26之间天然存在的结合相互作用的CD26(或其类似物)的多肽片段,以及筛选此类化合物以鉴定能够抑制CD26与CD45结合的化合物的方法,该方法包括以下步骤: :a)提供表达CD26和CD45的细胞的第一和第二样品; b)在候选产品的存在下孵育第一个样品; c)在不存在候选化合物的情况下孵育第二样品; d)通过向第一样品中加入抗CD26抗体的第一等分试样产生第一免疫沉淀物; e)通过向第二样品中加入第二等分试样产生第二免疫沉淀物; 以及f)确定存在于第一免疫沉淀物中的CD45的量是否小于第二免疫沉淀物中存在的CD45的量,第一免疫沉淀物中CD45的含量少于第二免疫沉淀物中的CD45的量,表明候选化合物抑制 绑定。