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2. 发明申请

US20070065427A1 Agents that modulate immune cell activation and methods of use thereof 有权
标题翻译：调节免疫细胞活化的药剂及其使用方法
公开(公告)号：US20070065427A1
公开(公告)日：2007-03-22
申请号：US11501392
申请日：2006-08-09
申请人： Gordon Freeman , Arlene Sharpe , Janet Buhlman , Didier Mandelbrot
发明人： Gordon Freeman , Arlene Sharpe , Janet Buhlman , Didier Mandelbrot
IPC分类号： A61K39/395
CPC分类号： G01N33/6854 , A61K38/1709 , G01N33/505 , G01N33/6872 , G01N2333/70532 , G01N2500/02
摘要： 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.
摘要翻译：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。

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