PI3K signalling is one of the most frequently aberrantly activated pathways in cancer. However, the development of therapeutic PI3K pathway inhibitors has faced challenges including poor drug tolerance and drug resistance. Here, Vanhaesebroeck et al. review efforts to understand and therapeutically exploit the biology of PI3Kα and PI3Kδ — the key targets of currently approved PI3K inhibitors, highlighting lessons learned and future opportunities.
- Bart Vanhaesebroeck
- Matthew W. D. Perry
- Klaus Okkenhaug