The present invention relates to a ligand-drug conjugate including a ligand; a linker that is connected to the ligand by a covalent bond and has a tris structure represented by a specific structural formula; and an active agent connected to the linker by a covalent bond. In the ligand-drug conjugate, the active agent is bound by the tris structure of the linker, and thus a greater number of active agents can be connected through one linker. Accordingly, a greater number of active agents per antibody binding can be delivered to the target cell, and the drug and/or toxin can stably reach the target cell and effectively exert the drug efficacy.
本发明涉及一种
配体-药物偶联物,包括一个
配体;一个连接剂,通过共价键连接到
配体上,具有由特定结构公式表示的三元结构;以及通过共价键连接到连接剂上的活性药物。在
配体-药物偶联物中,活性药物由连接剂的三元结构结合,因此可以通过一个连接剂连接更多的活性药物。因此,可以将更多的活性药物输送到靶细胞,每个
抗体结合可以输送更多的活性药物,药物和/或毒素可以稳定地到达靶细胞并有效地发挥药效。