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发明公开
CN105189544A 具有抗肿瘤活性的新颖的双特异性结合分子 无效 - 撤回

具有抗肿瘤活性的新颖的双特异性结合分子
摘要：
本发明涉及特异性结合(i)CD3和(ii)癌细胞上的表面靶抗原的双特异性结合分子，其中该结合分子包括：(a)特异性结合CD3的抗体，以及(b)结合癌细胞上的表面靶抗原的Fyn-SH3源多肽，其中所述Fyn-SH3源多肽由SEQ ID NO:1的氨基酸序列组成，其条件是(i)SEQ ID NO:1的氨基酸位置10至19内的至少一个氨基酸被取代、缺失或添加，以及(ii)SEQ ID NO:1的氨基酸位置29至36内的至少一个氨基酸被取代、缺失或添加，其条件是所述多肽与SEQ ID NO:1的氨基酸序列具有至少85％序列一致性，其中一致性的确定排除了SEQ ID NO:1的氨基酸位置12至17和31至34。
摘要（英）：

The present invention relates to a bispecific binding molecule that specifically binds to (i) CD3 and (ii) a surface target antigen on cancer cells, wherein the binding molecule comprises (a) an antibody specifically binding to CD3, and (b) a Fyn-SH3-derived polypeptide binding to a surface target antigen on cancer cells, wherein said Fyn-SH3-derived polypeptide consists of the amino acid sequence of SEQ ID NO: 1, with the proviso that (i) at least one amino acid within amino acids positions 10 to 19 of SEQ ID NO: 1 is substituted, deleted or added, and (ii) at least one amino acid amino acid within amino acids positions 29 to 36 of SEQ ID NO: 1 is substituted, deleted or added, provided that said polypeptide has at least 85% sequence identity to the amino acid sequence of SEQ ID NO: 1, wherein the determination of identity excludes amino acid positions 12 to 17 and 31 to 34 of SEQ ID NO: 1.

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