癌变
磷酸化
Wnt信号通路
信号转导
细胞生物学
激酶
连环蛋白
生物
连环素
癌症研究
化学
生物化学
癌症
遗传学
作者
Zhiqiang Chen,Xinyi Zhou,Xiaojun Zhou,Yi Tang,Mingzhu Lu,Jingbo Zhao,Chenhui Tian,Mingzhi Wu,Yanliang Liu,Edward V. Prochownik,Xinghuan Wang,Youjun Li
标识
DOI:10.1002/advs.202204909
摘要
β-catenin signaling is abnormally activated in cancer. Here, this work screens the mevalonate metabolic pathway enzyme PMVK to stabilize β-catenin signaling using a human genome-wide library. On the one hand, PMVK-produced MVA-5PP competitively binds to CKIα to prevent β-catenin Ser45 phosphorylation and degradation. On the other hand, PMVK functions as a protein kinase to directly phosphorylate β-catenin Ser184 to increase its protein nuclear localization. This synergistic effect of PMVK and MVA-5PP together promotes β-catenin signaling. In addition, PMVK deletion impairs mouse embryonic development and causes embryonic lethal. PMVK deficiency in liver tissue alleviates DEN/CCl4 -induced hepatocarcinogenesis. Finally, the small molecule inhibitor of PMVK, PMVKi5, is developed and PMVKi5 inhibits carcinogenesis of liver and colorectal tissues. These findings reveal a non-canonical function of a key metabolic enzyme PMVK and a novel link between the mevalonate pathway and β-catenin signaling in carcinogenesis providing a new target for clinical cancer therapy.
科研通智能强力驱动
Strongly Powered by AbleSci AI