作者
Shanique Alabi, Saul Jaime-Figueroa, Zhan Yao, Yijun Gao, John Hines, Kusal TG Samarasinghe, Lea Vogt, Neal Rosen, Craig M Crews
发表日期
2021/2/10
期刊
Nature communications
卷号
12
期号
1
页码范围
920
出版商
Nature Publishing Group UK
简介
Over 300 BRAF missense mutations have been identified in patients, yet currently approved drugs target V600 mutants alone. Moreover, acquired resistance inevitably emerges, primarily due to RAF lesions that prevent inhibition of BRAF V600 with current treatments. Therefore, there is a need for new therapies that target other mechanisms of activated BRAF. In this study, we use the Proteolysis Targeting Chimera (PROTAC) technology, which promotes ubiquitination and degradation of neo-substrates, to address the limitations of BRAF inhibitor-based therapies. Using vemurafenib-based PROTACs, we achieve low  nanomolar degradation of all classes of BRAF mutants, but spare degradation of WT RAF family members. Our lead PROTAC outperforms vemurafenib in inhibiting cancer cell growth and shows in vivo efficacy in a Class 2 BRAF xenograft model. Mechanistic studies reveal that BRAFWT is spared due …
引用总数
20202021202220232024112333316
学术搜索中的文章
S Alabi, S Jaime-Figueroa, Z Yao, Y Gao, J Hines… - Nature communications, 2021