This disclosure provides peptides which have an affinity for the focal adhesion targeting (FAT) domain of focal adhesion kinase (FAK). In particular, the peptides are modified and derived from the sequence of the LD2 alpha helical domain of paxillin (e.g., LD2 peptides), the LD4 domain of paxillin (e.g., LD4 peptides), and CD8 peptides. These peptides are capable of blocking an interaction between paxillin and FAK, thereby inhibiting FAK activity related to FAK-paxillin interaction. The invention further provides uses for such peptides as therapeutics for the treatment of cancer and other diseases characterized with FAK activity and/or expression (e.g., fibrosis).
本公开提供了对焦粘附激酶(FAK)的焦粘附靶向(FAT)结构域具有亲和力的肽。具体来说,这些肽经过修改并来源于paxillin的LD2α螺旋结构域序列(例如LD2肽)、paxillin的L
D4结构域(例如L
D4肽)和CD8肽。这些肽能够阻断paxillin与FAK之间的相互作用,从而抑制与FAK-paxillin相互作用相关的FAK活性。该发明进一步提供了这些肽作为治疗癌症和其他具有FAK活性和/或表达(例如纤维化)特征的疾病的治疗药物的用途。