PI3K Degrader

PROTAC PI3K/110β degrader-1 is a VHL-recruiting PROTAC degrader targeting PI3K/110β, with DC₅₀ values of 0.416 μM (MCF-7) and 19.66 μM (A549), respectively. PROTAC PI3K/110β degrader-1 recruits VHL to induce proteasomal degradation of PI3K/110β. It activates endoplasmic reticulum stress (ERS)-mediated mitochondrial apoptosis via the PERK/ATF4/CHOP unfolded protein response (UPR) pathway, downregulates p-AKT and Bcl-2, upregulates Bax, cleaved-caspase-9 and cleaved-caspase-3, inhibits the expression and activity of P-gp, and exerts synergistic anti-tumor effects with Doxorubicin (Adriamycin, ADM) (HY-15142A) and Cisplatin (DDP) (HY-17394). PROTAC PI3K/110β degrader-1 can be used in research related to multidrug-resistant cancers.

PROTAC PI3K/110β degrader-2 is a selective PI3K/p110β PROTAC degrader. PROTAC PI3K/110β degrader-2 can significantly degrade 110β protein and inhibit the expression of P-glycoprotein. PROTAC PI3K/110β degrader-2 can increase the level of reactive oxygen species (ROS). PROTAC PI3K/110β degrader-2 exerts anti-tumor effects by activating the endoplasmic reticulum stress (ERS)-mediated mitochondrial apoptosis pathway and inhibiting the AKT/Bcl-2 signaling pathway. PROTAC PI3K/110β degrader-2 can be used for research on cancer.