February 10, 2017
The quest for a new cancer drug often begins when a protein target is implicated as an important driver in tumourigenesis. For cancer researchers, small molecules that block or stimulate such proteins can be valuable tools in research. Not only do they help us understand the role that the protein plays in cancer biology, but they also enable researchers to demonstrate which tumours are sensitive toward inhibition or stimulation with that protein target of interest, providing early clues as for patient selection and biomarker identification. Moreover, the knowledge that a small molecule can bind to such a protein builds confidence that this target is indeed “druggable,” which can provide a powerful stimulus to initiate a sustained effort to find medicines for that target.