NCIt definition : An orally bioavailable, substituted benzimidazole inhibitor of the class I phosphoinositide
3-kinase (PI3K) beta isoform with potential antineoplastic activity. PI3K beta inhibitor
GSK2636771 selectively inhibits PI3K beta kinase activity in the PI3K/Akt/mTOR pathway,
which may result in tumor cell apoptosis and growth inhibition in PI3K beta-expressing
and/or PTEN-driven tumor cells. Dysregulation of the PI3K/Akt/mTOR pathway is frequently
found in solid tumors and results in the promotion of tumor cell growth, survival,
and resistance to both chemotherapy and radiotherapy. PI3K beta is the p110-beta catalytic
subunit of the class I PI3K. PTEN, a tumor suppressor protein and negative regulator
of PI3K activity, is often mutated in a variety of cancer cells.;
UNII : DW94IAT0LS;
CAS number : 1372540-25-4; a href https://gsrs.ncats.nih.gov/ginas/app/beta/browse-substance?search 1372540-25-4
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