Results 41 to 50 of about 18,384,661 (291)

Targeting PI3K in cancer: any good news?

open access: yesFrontiers in Oncology, 2013
The phosphatidylinositol 3-kinase (PI3K) signaling pathway regulates several cellular processes and it’s one of the most frequently deregulated pathway in human tumors.
Miriam eMartini   +3 more
doaj   +1 more source

Class II Phosphoinositide 3-Kinases Contribute to Endothelial Cells Morphogenesis [PDF]

open access: yes, 2013
PMCID: PMC3539993This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are ...
I. Mavrommati   +62 more
core   +1 more source

Class I phosphatidylinositol 3-kinase inhibitors for cancer therapy

open access: yesActa Pharmaceutica Sinica B, 2017
The phosphatidylinositol 3-kinase (PI3K) pathway is frequently activated in human cancers. Class I PI3Ks are lipid kinases that phosphorylate phosphatidylinositol 4,5-bisphosphate (PIP2) at the 3-OH of the inositol ring to generate phosphatidylinositol 3,
Wennan Zhao, Yuling Qiu, Dexin Kong
doaj   +1 more source

Regulation of T cell alloimmunity by PI3Kγ and PI3Kδ

open access: yesNature Communications, 2017
Phosphatidylinositol-3-kinases (PI3K) γ and δ are key regulators of T cell signaling. Here the author show, using mouse heart allograft transplantation models, that PI3Kγ or PI3Kδ deficiency prolongs graft survival, but selective inhibition of PI3Kγ or ...
Mayuko Uehara   +14 more
doaj   +1 more source

Calmodulin Activates Phosphatidylinositol 3-Kinase [PDF]

open access: yesJournal of Biological Chemistry, 1997
Calmodulin and phosphatidylinositol 3-kinase are vital components of a number of common intracellular events. Calmodulin, a ubiquitous Ca2+-dependent effector protein, regulates multiple processes in eukaryotic cells, including cytoskeletal organization, vesicular trafficking, and mitogenesis.
J L, Joyal   +6 more
openaire   +2 more sources

The class III PI(3)K Vps34 promotes autophagy and endocytosis but not TOR signaling in Drosophila [PDF]

open access: yes, 2008
Degradation of cytoplasmic components by autophagy requires the class III phosphatidylinositol 3 (PI(3)) – kinase Vps34, but the mechanisms by which this kinase and its lipid product PI(3) phosphate (PI(3)P) promote autophagy are unclear.
Backer, J. M.   +18 more
core   +1 more source

The impact of PIK3CA mutations and PTEN expression on the effect of neoadjuvant therapy for postmenopausal luminal breast cancer patients

open access: yesBMC Cancer, 2023
Background There is pressing needs to find the biomarker in the selection of neoadjuvant therapy in postmenopausal luminal breast cancer patients. We examined the hypothesis that PIK3CA mutations and low phosphatase and tensin homolog (PTEN) expression ...
Shouko Hayama   +14 more
doaj   +1 more source

Is wortmannin-induced reorganization of the trans-Golgi network the key to explain charasome formation?

open access: yesFrontiers in Plant Science, 2016
Wortmannin, a fungal metabolite and an inhibitor of phosphatidylinositol-3 (PI3) and phosphatidylinositol-4 (PI4) kinases, is widely used for the investigation and dissection of vacuolar trafficking routes and for the identification of proteins located ...
Ilse eFoissner   +4 more
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

open access: yesMolecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce   +11 more
wiley   +1 more source

Establishment of a structure-activity relationship of the 1H-imidazo[4,5-c]quinoline-based kinase inhibitor NVP-BEZ235 as a lead for African sleeping sickness [PDF]

open access: yes, 2014
The compound NVP-BEZ235 (1) is a potent inhibitor of human phospoinositide-3-kinases (PI3Ks) and mammalian target of rapamycin (mTOR) that also showed high inhibitory potency against T. brucei cultures. With an eye towards using 1 as a starting point for
Pollastri, Michael P   +10 more
core   +1 more source

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