申请人:Essigmann John M.
公开号:US20090062236A1
公开(公告)日:2009-03-05
The compositions and methods disclosed herein provide heterobifunctional programmable genotoxic compounds that can be designed to kill selected cells present in a heterogenous cell population. The present compounds comprise a first agent that inflicts damage on cellular DNA, and a second agent that attracts a macromolecular cell component such as a protein, which in turn shields genomic lesions from repair. Unrepaired lesions therefore persist in the cellular genome and contribute to the death of selected cells. In contrast, lesions formed in nonselected cells, which lack the cell component, are unshielded and thus are repaired. As a result, compounds described herein are less toxic to nonselected cells. Compounds of this invention can be designed to cause the selective killing of transformed cells, viral-infected cells and the like.
本文所披露的组合物和方法提供了异双官能团可编程的基因毒性化合物,可设计用于杀死杂种细胞群中的选定细胞。这些化合物包括第一种对细胞DNA造成损伤的剂和第二种吸引大分子细胞组分(如蛋白质)的剂,该组分反过来保护基因组损伤不受修复。因此,未修复的损伤会在细胞基因组中持续存在并促使选定细胞死亡。相反,形成于缺乏该细胞组分的非选定细胞的损伤则未受保护,因此会被修复。因此,本文所描述的化合物对非选定细胞的毒性较小。本发明的化合物可设计用于选择性地杀死转化细胞、病毒感染细胞等。