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Updated: May 24, 2026

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Published on: June 15, 2017
PI3K signalling: the path to discovery and understanding
Bart Vanhaesebroeck1, Len Stephens, Phillip Hawkins
1Centre for Cell Signalling, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, United Kingdom. bart.vanh@qmul.ac.uk
Phosphoinositide 3-kinases (PI3Ks) research has evolved significantly, identifying PI3K inhibitors as key targets for cancer and inflammation. Discoveries include PI3K-dependent networks and regulators of cell growth.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Phosphoinositide 3-kinases (PI3Ks) research has advanced over two decades.
- PI3Ks are implicated in growth factor signaling, GPCRs, and oncogene products.
- PI3K inhibitors are now clinical targets for cancer and inflammation.
Purpose of the Study:
- To review major discoveries in the phosphoinositide 3-kinase (PI3K) field.
- To highlight the progression of PI3K research from basic enzymology to therapeutic applications.
Main Methods:
- Literature review of key PI3K discoveries.
- Analysis of PI3K-dependent signaling networks.
- Identification of critical protein and domain players.
Main Results:
- PI3K's role in cellular processes is well-defined.
- Discovery of phosphoinositide-binding domains (PH, PX, FYVE) in lipid signaling.
- Identification of PTEN, AKT, and mTOR as crucial regulators.
Conclusions:
- PI3K research has yielded significant insights into cell growth and disease.
- PI3K pathways represent important targets for therapeutic intervention in cancer and inflammation.
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