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    • 1. 发明专利
    • Anti-cd38 human antibody and use thereof
    • 抗CD38人抗体及其用途
    • JP2012116856A
    • 2012-06-21
    • JP2012022417
    • 2012-02-03
    • Morphosys Agモルフォシス・アクチェンゲゼルシャフトMorphosys Ag
    • TESAR MICHAELJAGER UTE
    • C07K7/08A61K39/395A61K49/00A61P35/00A61P35/02C07K14/705C07K16/00C07K16/28C07K16/30
    • C07K16/2896A61K2039/505C07K16/005C07K2317/24C07K2317/34C07K2317/55C07K2317/732C07K2317/74C07K2319/30
    • PROBLEM TO BE SOLVED: To provide a recombinant antigen-binding region and an antibody and a functional fragment containing such an antigen-binding region that are specific for CD38, also to provide a nucleic acid sequence encoding the antibody, a vector containing the sequence, a pharmaceutical composition and a kit with an instruction for use, and further to provide an isolated novel epitope of CD38 and a method of use therefor.SOLUTION: The invention provides an isolated antibody or a functional antibody fragment that contains an antigen-binding region that is specific for an epitope of CD38, where the antibody or the functional fragment thereof is able to mediate killing of a CD38+ target cell (LP-1 (DSMZ: ACC41) and RPMI-8226 (ATCC: CCL-155)) by antibody-dependent cellular cytotoxicity ("ADCC") with an at least two- to five-fold better efficacy than the chimeric OKT10 antibody having SEQ ID NOS: 23 and 24, when a human PBMC cell is employed as an effector cell, and when the ratio of effector cells to target cells is between about 30:1 and about 50:1.
    • 待解决的问题:为了提供重组抗原结合区和抗体以及含有对CD38特异性的抗原结合区的功能片段,也提供编码抗体的核酸序列,含有 该序列,药物组合物和具有使用说明书的试剂盒,以及进一步提供CD38的分离的新表位及其使用方法。 解决方案:本发明提供了分离的抗体或功能性抗体片段,其含有对CD38的表位特异性的抗原结合区,其中抗体或其功能片段能够介导CD38 +靶细胞的杀伤 通过抗体依赖性细胞毒性(“ADCC”),具有比具有至少两倍至五倍的功能的嵌合型OKT10抗体更好的效力(LP-1(DSMZ:ACC41))和RPMI-8226(ATCC:CCL-155) 当使用人PBMC细胞作为效应细胞时,并且当效应细胞与靶细胞的比例在约30:1至约50:1之间时,SEQ ID NO:23和24。 版权所有(C)2012,JPO&INPIT