Format

Send to

Choose Destination
See comment in PubMed Commons below
Curr Med Chem. 2011;18(18):2674-85.

Present and future of PI3K pathway inhibition in cancer: perspectives and limitations.

Author information

1
Department of Genetics, Biology and Biochemistry, Molecular Biotecnology Center, University of Torino, Torino, Italy.

Abstract

Phosphoinositide 3-kinases (PI3Ks) control key signaling pathways in cancer cells, leading to cell proliferation, survival, motility and angiogenesis. In several human cancers, activation of PI3Ks results from gain-of-function or over-expression of PI3Ks and/or hyperactivity of up- or downstream players in the pathway. As inhibition of PI3Ks and downstream targets such as mammalian target of rapamycin (mTOR) has been shown to reduce tumor growth in vitro and in preclinical models, several small molecule inhibitors of PI3Ks are currently undergoing clinical trial as novel agents in cancer therapy. These drugs include inhibitors targeting all class I PI3Ks (α, β, γ, δ isoforms), compounds blocking selective PI3K isoforms and dual inhibitors active on both PI3Ks and mTOR. Herein, we summarize the pharmacology and preliminary clinical data of the main PI3K inhibitors undergoing clinical trial. We will also review the preclinical studies documenting the major effects of systemic PI3K inhibition on non-cancer tissues, which have shed light on potential side effects, caveats and limitations for PI3K blockade in patients.

PMID:
21649577
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Bentham Science Publishers Ltd.
    Loading ...
    Support Center