Discovery of PROTAC molecules that selectively degrade the IRAK3 pseudokinase

• We report the first disclosure of IRAK3 degraders in the scientific literature. Taking advantage of an opportune by-product obtained during our efforts to identify IRAK4 inhibitors, we identified ready to use, selective IRAK3 ligands in our compound collection with the required properties for conversion into PROTAC degraders. This work culminated with the discovery of PROTAC 23, which we demonstrated to be a potent and selective degrader of IRAK3. 23 induced proteasome-dependent degradation of IRAK3 and required both CRBN and IRAK3 binding for activity. We conclude that PROTAC 23 constitutes an excellent in vitro tool with which to interrogate the biology of IRAK3.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Läkemedelskemi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Medicinal Chemistry (hsv//eng)

Publication and Content Type

ref (subject category)

art (subject category)