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    • 4. 发明申请
    • AGENTS THAT MODULATE IMMUNE CELL ACTIVATION AND METHODS OF USE THEREOF
    • 调节免疫细胞活化的试剂及其使用方法
    • WO03042402A2
    • 2003-05-22
    • PCT/US0236518
    • 2002-11-12
    • DANA FARBER CANCER INST INCBRIGHAM & WOMENS HOSPITAL
    • FREEMAN GORDON JSHARPE ARLENE HBUHLMAN JANETMANDELBROT DIDIER
    • A61K38/17C07K14/705C07K16/28C12N15/09C12Q1/02G01N33/15G01N33/50G01N33/566G01N33/68C12Q
    • G01N33/6854A61K38/1709G01N33/505G01N33/6872G01N2333/70532G01N2500/02
    • Disclosed are methods for identifying an agent that modulates an immune response. One such method comprises screening for agents which inhibit the interaction between a PD-1 ligand and a PD-1 polypeptide, and determining whether the agents inhibit the interaction between a PD-1 ligand and a B7 polypeptide, to identify an agent that inhibits PD-1 ligand and PD-1 polypeptide interaction, while not inhibiting the interaction between a PD-1 ligand and a B7 polypeptide, as an agent that modulates an immune response. Another such method comprises screening for agents which inhibit the interaction between a PD-1 ligand and a B7 polypeptide, and determining whether the agents inhibit the interaction between a PD-1 ligand and a PD-1 polypeptide, to identify an agent that inhibits the PD-1 ligand and B7 polypeptide interaction, which does not inhibit the interaction between a PD-1 ligand and a PD-1 polypeptide, as an agent that modulates the immune response. Further disclosed is a method for inhibiting the interaction between a B7 polypeptide and a PD-1 ligand, the method comprising contacting an immune cell bearing a PD-1 ligand, or an immune cell bearing a B7 polypeptide, with an agent that inhibits the interaction between the PD-1 ligand and the B7 polypeptide. Such agents may be an anti- PD-1 ligand antibody or a small molecule. Also disclosed is a method for modulating an immune response. The method comprises contacting an immune cell bearing the PD-1 ligand, or an immune cell bearing the PD-1 polypeptide, with an agent that inhibits interactions between the PD-1 ligand and the PD-1 polypeptide, without inhibiting interactions between the PD-1 ligand and a B7 polypeptide, to thereby modulate an immune response. The agent may be an anti- PD-1 ligand antibody or a small molecule.
    • 公开了用于鉴定调节免疫应答的药剂的方法。 一种这样的方法包括筛选抑制PD-1配体和PD-1多肽之间的相互作用的试剂,以及确定试剂是否抑制PD-1配体和B7多肽之间的相互作用,以鉴定抑制PD -1配体和PD-1多肽相互作用,而不抑制PD-1配体和B7多肽之间的相互作用,作为调节免疫应答的试剂。 另一种这样的方法包括筛选抑制PD-1配体和B7多肽之间的相互作用的试剂,以及确定试剂是否抑制PD-1配体和PD-1多肽之间的相互作用,以鉴定抑制 PD-1配体和B7多肽相互作用,其不抑制PD-1配体和PD-1多肽之间的相互作用,作为调节免疫应答的试剂。 进一步公开的是抑制B7多肽和PD-1配体之间的相互作用的方法,该方法包括将带有PD-1配体的免疫细胞或带有B7多肽的免疫细胞与抑制相互作用的药物接触 在PD-1配体和B7多肽之间。 这样的试剂可以是抗PD-1配体抗体或小分子。 还公开了一种调节免疫应答的方法。 该方法包括使携带PD-1配体或携带PD-1多肽的免疫细胞的免疫细胞与抑制PD-1配体和PD-1多肽之间的相互作用的试剂接触,而不抑制PD之间的相互作用 -1配体和B7多肽,从而调节免疫应答。 该试剂可以是抗PD-1配体抗体或小分子。