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    • 2. 发明申请
    • GENERATION OF ANTIBODIES TO CELL-SURFACE RECEPTORS AND CANCER-ASSOCIATED PROTEINS INCLUDING EGFR FAMILY MEMBERS
    • 产生抗细胞表面受体和癌基因相关蛋白,包括EGFR家族成员
    • WO2009023266A1
    • 2009-02-19
    • PCT/US2008/009772
    • 2008-08-14
    • LUDWIG INSTITUTE FOR CANCER RESEARCHBURGESS, AntonyGARRETT, Thomas
    • BURGESS, AntonyGARRETT, Thomas
    • C07K14/71A61K39/00
    • C07K16/2863A61K2039/505C07K14/71C07K16/3053C07K16/3069C07K2317/34C07K2317/55C07K2317/565C07K2317/73C07K2317/76C07K2317/92
    • The present invention relates generally to the generation of antibodies to cell-surface receptors and cancer-associated proteins, and particularly to such receptors or proteins with cysteine rich regions or cysteine loops. Cell-surface receptors and cancer-associated proteins with cysteine rich regions or cysteine loops and suitable in this invention include EGFR and EGFR family members, insulin receptor, and tyrosine kinases such as IGFR, Ret and Ror. A method is provided generally for the generation of modulators or binders, including antibodies, to cancer associated proteins, particularly cell-surface receptors, which may, particularly in cancers or on amplification or overexpression or other tumorigenic states, display epitopes not necessarily available in correctly folded and processed proteins (wild type or normal situations). Mutant or modified such receptors or proteins, wherein the cysteine rich regions or cysteine loops are altered, or wherein the conformation of the receptor or protein is altered, serve as targets for isolating or screening modulators, including as epitopes for generating antibodies, particularly antibodies which prefer or are specific for a cancer-associated or tumorigenic form(s) of the protein or receptor. The invention also relates to the use of the altered cell-surface receptors or cancer-associated proteins in generating modulators including antibodies which have anti-tumor or anti-cancer activity or in stimulating an immunological response. The invention further relates to antibodies specifically directed against the altered cell-surface receptors or cancer-associated proteins, including EGFR and EGFR family members.
    • 本发明一般涉及产生针对细胞表面受体和癌症相关蛋白的抗体,特别涉及具有富含半胱氨酸的区域或半胱氨酸环的此类受体或蛋白质。 具有半胱氨酸富集区或半胱氨酸环并且适用于本发明的细胞表面受体和癌症相关蛋白包括EGFR和EGFR家族成员,胰岛素受体和酪氨酸激酶,例如IGFR,Ret和Ror。 提供了一般用于产生癌症相关蛋白质,特别是细胞表面受体的调节剂或粘合剂(包括抗体)的方法,特别是在癌症或扩增或过度表达或其他致瘤状态下,显示未必正确可用的表位 折叠和加工的蛋白质(野生型或正常情况)。 突变或修饰的这样的受体或蛋白质,其中改变半胱氨酸富集区或半胱氨酸环,或其中改变受体或蛋白质的构象,用作分离或筛选调节剂的靶标,包括作为产生抗体的表位,特别是抗体 优选或对蛋白质或受体的癌症相关或致瘤性形式是特异性的。 本发明还涉及改变的细胞表面受体或癌相关蛋白在产生包含具有抗肿瘤或抗癌活性或刺激免疫应答的抗体的调节剂中的用途。 本发明还涉及特异性针对改变的细胞表面受体或癌相关蛋白(包括EGFR和EGFR家族成员)的抗体。