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MetabolomicsMicrobiome Metabolism of Dietary Phytochemicals Controls the Anticancer Activity of PI3K Inhibitors
Phosphatidylinositol 3-kinase (PI3K) signaling is both the effector pathway of insulin and among the most frequently activated pathways in human cancer. In murine cancer models, the efficacy of PI3K inhibitors is dramatically enhanced by a ketogenic diet, with a proposed mechanism involving dietary ...
2025-03-26 | MTBLS10944 | MetaboLights
TranscriptomicsGene expression profiling upon PI3K inhibition using different inhibitors
Activation of the phosphoinositide 3-kinase (PI3K)/Akt signaling pathway is one the most frequent genetic events in human cancer. Therefore, the development of PI3K inhibitors has attracted much attention. We previously described the pyrazolopyrimidine derivative ETP-45658 as a potent inhibitor of P...
ORGANISM(S): Homo sapiens 
2014-04-08 | E-GEOD-56579 | biostudies-arrayexpress
TranscriptomicsResistance to PI3K/mTOR inhibitor PF-04691502 in KRAS mutant colorectal cancer models reveals a sensitivity to combination with EGFR inhibition
We explored potential bypass mechanisms to PI3K/mTOR-directed therapy in KRAS mutant CRC models, utilizing genetically engineered mouse models (GEMM) to generate acquired resistance to the targeted dual PI3K/mTOR small molecule inhibitor PF-04691502. Transcriptomic analysis revealed a dynamic stem-l...
ORGANISM(S): Mus musculus 
2014-08-31 | E-MTAB-2510 | biostudies-arrayexpress
TranscriptomicsPI3K inhibition results in enhanced estrogen receptor function and dependence in hormone receptor-positive breast cancer
Activating mutations of PIK3CA are the most frequent genomic alterations in estrogen receptor (ER)-positive breast tumors and selective PI3Kα inhibitors are in clinical development. The activity of these agents, however, is not homogenous and only a fraction of patients bearing PIK3CA-mutant ER-posi...
ORGANISM(S): Homo sapiens 
2015-04-29 | E-GEOD-64033 | biostudies-arrayexpress
TranscriptomicsEffect of a dual specificity PI3K/mTOR inhibitor, NVP-BEZ235, on human ovarian cancer cell lines grown in 3D culture
Analysis of the effects of a dual specificity PI3K/mTOR inhibitor on two human ovarian cell lines, OV2008 and MCAS. Results provide insight into the adaptive response to PI3K/mTOR inhibition in matrix attached ovarian cancer cells. The PI3K/mTOR-pathway is the most commonly deregulated pathway in e...
ORGANISM(S): Homo sapiens 
2012-03-13 | E-GEOD-28992 | biostudies-arrayexpress
ProteomicsMass spectrometry-based proteomics reveals potential roles of NEK9 and MAP2K4 in resistance to PI3K inhibitors in triple negative breast cancer

Filip Mundt, Sandeep Rajput, Shunqiang Li, Kelly Ruggles, Arshag D. Mooradian, Philipp Mertins, Michael A. Gillette, Karsten Krug, et al., Cancer Res. 2018 May 15;78(10):2732-2746. doi: 10.1158/0008-5472.CAN-17-1990.

Activation of phosphoinositide 3-kinase (PI3K) signaling is frequently obs...

ORGANISM(S): Homo Sapiens (ncbitaxon:9606) 
2018-10-19 | MSV000083050 | MassIVE
TranscriptomicsPI3K-targeted therapy can be evaded by gene amplification along the MYC-eukaryotic translation initiation factor 4E (eIF4E) axis
This SuperSeries is composed of the following subset Series: GSE25170: MYC drives resistance to PI3K/mTOR targeted inhibition (Sty SNP array) GSE25172: MYC drives resistance to PI3K/mTOR targeted inhibition (gene expression) Refer to individual Series
ORGANISM(S): Homo sapiens 
2011-09-13 | E-GEOD-25173 | biostudies-arrayexpress
TranscriptomicsComparative study of a mTOR inhibitor, a pan-PI3K inhibitor and a dual PI3K/mTOR inhibitor in MCL
Phosphatidylinositol-3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) pathway activation contributes to mantle cell lymphoma (MCL) pathogenesis and drug resistance. However, the use of mTOR inhibitors as single agents have shown limited clinical efficacy in relation with drug activation of f...
ORGANISM(S): Homo sapiens 
2013-12-14 | E-GEOD-53309 | biostudies-arrayexpress
TranscriptomicsTargeting resistance to Smoothened antagonists by inhibiting the PI3K pathway
Mutations in Hedgehog (Hh) pathway genes, leading to constitutive activation of Smoothened (Smo), occur in sporadic medulloblastoma, the most common brain cancer in children. Antagonists of Smo induce tumor regression in mouse models of medulloblastoma and hold great promise for targeted therapy fo...
ORGANISM(S): Mus musculus 
2010-09-29 | E-GEOD-19657 | biostudies-arrayexpress
ProteomicsNaringenin targets PI3K p85alpha to suppress PI3K/AKT signaling pathway and ameliorate disordered MMP-9 secretion in cigarette smoke extract-induced alveolar macrophages in vitro
Naringenin has demonstrated potential therapeutic effects against cigarette smoke-induced lung injury; however, its underlying mechanisms of regulating matrix metalloproteinase-9 (MMP-9) in alveolar macrophages remain unclear. Methods: The regulatory mechanisms of naringenin in cigarette smoke extra...
ORGANISM(S): Mus Musculus 
2025-04-21 | PXD063137 |
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