Targeting deregulated Wnt signaling in cancer using stabilized alpha-helices of BCL-9
申请人:DANA-FARBER CANCER INSTITUTE, INC.
公开号:US11220532B2
公开(公告)日:2022-01-11
The invention provides structurally-constrained peptides by hydrocarbon stapling of a BCL9 HD2 helix for use as a therapeutic agent. The invention further provides methods and kits for use of the structurally-constrained peptide of the instant invention. The invention is based, at least in part, on the results provided herein demonstrating that hydrocarbon stapled helical peptides display excellent proteolytic, acid, and thermal stability, restore the native helical structure of the peptide, possess superior pharmacokinetic properties compared to the corresponding unmodified peptides, and are highly effective in binding to β-catenin in vitro, in cellulo, and in vivo, disrupting the BCL9/β-catenin interaction, and thereby interfering with deregulated Wnt/β-catenin signaling for therapeutic benefit in a variety of human diseases including human cancer.
本发明通过对 BCL9 HD2 螺旋进行碳氢化合物钉合,提供了用作治疗剂的结构受限肽。本发明进一步提供了使用本发明结构受限肽的方法和试剂盒。本发明至少部分基于本文提供的结果,即碳氢化合物钉合的螺旋肽显示出优异的蛋白水解稳定性、酸稳定性和热稳定性,恢复了肽的原生螺旋结构,与相应的未修饰肽相比具有优异的药代动力学特性、并能在体外、细胞内和体内高效地与β-catenin结合,破坏BCL9/β-catenin的相互作用,从而干扰失调的Wnt/β-catenin信号传导,对包括人类癌症在内的多种人类疾病有治疗效果。