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A human ICAM-1 antibody isolated by a function-first approach has potent macrophage-dependent antimyeloma activity in vivo

机译:通过功能优先方法分离的人ICAM-1抗体在体内具有有效的巨噬细胞依赖性抗骨髓瘤活性

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摘要

We isolated a tumor B-cell-targeting antibody, BI-505, from a highly diversified human phage-antibody library, using a pioneering "function-first" approach involving screening for (1) specificity for a tumor B cell surface receptor, (2) induction of tumor programmed cell death, and (3) enhanced in vivo antitumor activity compared to currently used treatments. BI-505 bound to intercellular adhesion molecule-1, identifying a previously unrecognized role for this receptor as a therapeutic target in cancer. The BI-505 epitope was strongly expressed on the surface of multiple myeloma cells from both newly diagnosed and relapsed patients. BI-505 had potent macrophage-dependent antimyeloma activity and conferred enhanced survival compared to currently used treatments in advanced experimental models of multiple myeloma.
机译:我们使用具有开拓性的“功能至上”方法,包括筛选(1)对肿瘤B细胞表面受体的特异性,从高度多样化的人噬菌体抗体库中分离出了靶向肿瘤B细胞的抗体BI-505。 2)诱导肿瘤程序性细胞死亡,和(3)与目前使用的治疗方法相比,体内抗肿瘤活性增强。 BI-505与细胞间粘附分子1结合,从而确定了该受体作为癌症治疗靶点的先前未被认识的作用。 BI-505表位在新诊断和复发患者的多发性骨髓瘤细胞表面强烈表达。与目前在多发性骨髓瘤的先进实验模型中使用的治疗方法相比,BI-505具有强效的巨噬细胞依赖性抗骨髓瘤活性,并具有增强的存活率。

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