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    • 4. 发明授权
    • Anti-human pre-B cell receptor antibody
    • 抗人B细胞受体抗体
    • US06335175B1
    • 2002-01-01
    • US09494252
    • 2000-01-31
    • Keiko TsuganezawaHajime Karasuyama
    • Keiko TsuganezawaHajime Karasuyama
    • G01N33574
    • G01N33/56972C07K16/28
    • The present invention provides an antibody which recognizes a human pre-B cell receptor and does not recognize a human pro-B cell. The invention also provides an antibody which reacts with a VpreB molecule, one of the constituents of an SL chain of a human pre-B cell receptor expressed on the membrane surface of a human pre-B cell, or a VpreB molecule expressed within a human pro-B cell, but does not react with a &lgr;5 molecule of the surrogate light chain, and whose reactivity is such that a human pre-B cell or a human pro-B cell reacted with the antibody can be detected microscopically. The invention further provides a method for diagnosing which differentiation stage of B cells acute lymphoblastic leukemia in childhood stems from, by using an antibody which recognizes a human pre-B cell receptor, and does not recognize a human pro-B cell, an antibody which recognizes a VpreB molecule of a surrogate light chain constituting a human pre-B cell receptor, an antibody which recognizes a &lgr;5 molecule of the surrogate light chain constituting a human pre-B cell receptor, and an antibody which recognizes a B cell.
    • 本发明提供了识别人前B细胞受体并且不识别人前B细胞的抗体。 本发明还提供了一种与VpreB分子反应的抗体,VpreB分子是在人前B细胞的膜表面上表达的人前B细胞受体的SL链的成分之一或在人中表达的VpreB分子 pro-B细胞,但不与替代轻链的lambd5分子反应,并且其反应性使得可以显微检测与抗体反应的人前B细胞或人类前体B细胞。 本发明还提供了一种通过使用识别人前B细胞受体的抗体并且不识别人前B细胞来诊断儿童B细胞急性淋巴细胞白血病的哪个分化阶段的方法, 识别构成人前B细胞受体的替代轻链的VpreB分子,识别构成人前B细胞受体的替代轻链的羔羊5分子的抗体和识别B细胞的抗体。