PROTAC HPK1 Degrader-5

PROTAC HPK1 Degrader-5 is a potent and orally active HPK1 PROTAC degrader (DC50 = 5.0 nM; Dmax ≥ 99%). PROTAC HPK1 Degrader-5 significantly inhibits SLP76 phosphorylation and enhanced ERK pathway activation through degrading HPK1, thereby stimulating IL-2 and IFN-γ release. PROTAC HPK1 Degrader-5 exhibits the ability to overcome the immunosuppressive effects imposed by PGE2, NECA or TGF-β. PROTAC HPK1 Degrader-5 alone efficaciously inhibits tumor growth in an MC38 syngeneic mouse model. PROTAC HPK1 Degrader-5 can be used for the study of tumor (such as colorectal cancer) immunotherapy (Pink: Target protein ligand ; Blue: E3 ligand (HY-W023573) ; Black: Linker; E3 ligand + Linker (HY-175551) ).