#Researchers, for something that has been considered “undruggable” until recently, the research around KRAS has come a long way. And Boehringer Ingelheim has been at the forefront of research all along. And this is highly relevant as activating mutations in KRAS are prevalent in patients suffering from solid tumors and other RASopathies. An inherent challenge of targeting KRAS with small molecules is the wide range of mutations that lead to oncogenic activation.
Hence, the discovery of ACBI3, a selective, potent, and in vivo active pan-KRAS proteolysis targeting chimera (PROTAC) degrader represents a welcoming addition in the armamentarium to address this important cellular signaling transducer.
ACBI3 has been discovered based on an intelligent structure-based design approach guided by optimization of VHL:PROTAC:KRAS ternary complex stability and durability. KRAS degradation through ubiquitin ligase recruitment enables a greater than 10-fold higher potency compared with
that of target inhibition and results in prolonged suppression of MAPK signaling.
The discovery of ACBI3 is another example of the fruitful collaboration between the Centre for Targeted Protein Degradation at the University of Dundee and Boehringer Ingelheim.
Congratulations to Johannes Popow, William Farnaby, Andreas Gollner, Christiane Kofink, Peter Ettmayer, and Alessio Ciulli and all other authors for their excellent paper, part of the latest edition of Science Magazine.
Further good news: Soon, we will make ACBI3 available on #opnMe to foster further independent research ->Please stay tuned https://lnkd.in/eqfYTECJ #OpenScience