Phosphatidylinositol-3
Lipid Rafts of Primary Endothelial Cells Are Essential for Kaposi's Sarcoma-Associated Herpesvirus/Human Herpesvirus 8-Induced Phosphatidylinositol 3-Kinase and RhoA-GTPases Critical for Microtubule Dynamics and Nuclear Delivery of Viral DNA but Dispensable for Binding and Entry
... Src, phosphatidylinositol 3-kinase (PI3-K), Rho-GTPases, Diaphanous-2 (Dia-2), Ezrin, protein kinase C- , extracellular signal-regulated kinase 1/2 (ERK1/2), and NF- B signal pathways that are critical ...
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Isotype-specific inhibition of the phosphatidylinositol-3-kinase pathway in hematologic malignancies
... Abstract: In the last decade, the advent of biological targeted therapies has revolutionized the management of several types of cancer, especially in the realm of hematologic malignancies. One of these pathways, and the ...
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A Phosphatidylinositol 3-Kinase Docking Site in the Cytoplasmic Tail of the Jaagsiekte Sheep Retrovirus Transmembrane Protein Is Essential for Envelope-Induced Transformation of NIH 3T3 Cells
... Jaagsiekte sheep retrovirus (JSRV) is the causative agent of a transmissible lung cancer of sheep known as ovine pulmonary carcinoma. Recently, we have found that the expression of the JSRV envelope (Env) is sufficient ...
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Clinical development of phosphatidylinositol 3-kinase inhibitors for cancer treatment
... subunit (p85) that stabilizes p110 and inactivates its kinase activity at basal state. Physiologically, PI3K trans- duces signals received from activated tyrosine kinase receptors (RTK), G protein-coupled receptors ...
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Activation of phosphatidylinositol 3 kinase by ligation of the interleukin 7 receptor on human thymocytes
... One of the earliest metabolic events linked to mitogenic responses in other growth factor receptor systems is the activation of phosphatidylinositol-3 kinase PI-3 kinase.. We demonstrate[r] ...
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Phosphatidylinositol 3-kinase (PI3K) inhibitors as cancer therapeutics
... Phosphatidylinositol 3-kinases (PI3Ks) are lipid kinases that play central role in regulation of cell cycle, apoptosis, DNA repair, senescence, angiogenesis, cellular metabolism, and motility ...
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Phosphatidylinositol 3 kinase pathway activation in breast cancer brain metastases
... PI3K: phosphatidylinositol 3-kinase; PR: progesterone receptor; PTEN: phosphatase and tensin homologue; SAS: Statistical Analysis Software; TNBC: triple-negative breast cancer; TTCNS: time to central ...
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Clinical development of phosphatidylinositol 3-kinase inhibitors for non-Hodgkin lymphoma
... [1]. Phosphatidylinositol 3-kinase (PI3K) is a critical element in this signaling, it is activated in a wide range of human neoplasms and associated with poor outcomes ...
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Proteomic analysis of phosphoproteins sensitive to a phosphatidylinositol 3-kinase inhibitor, ZSTK474, by using SELDI-TOF MS
... Results: We combined immobilized metal affinity chromatography (IMAC) with SELDI-TOF MS. After SELDI-TOF MS analysis of IMAC-enrichment phosphoproteins from A549 cancer cells, a series of protein peaks at 12.9, 12.8, ...
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Defect in skeletal muscle phosphatidylinositol 3 kinase in obese insulin resistant mice
... of phosphatidylinositol-3-kinase (PI3K) is one of the earliest postreceptor events in the insulin signaling ...a 3-10-fold increase in antiphosphotyrosine-immunoprecipitable PI3K (antiPTyr-PI3K) ...
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Phosphatidylinositol 3 kinase dependent activation of trypsinogen modulates the severity of acute pancreatitis
... the phosphatidylinositol 3-kinase inhibitor wortmannin can reduce the intrapancreatic activation of trypsinogen that occurs during two dissimilar experimental models of rodent acute pancreatitis, ...
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Defining the physiological role of phosphatidylinositol 3-kinase protein kinase activity
... tumours and cancer cell lines. In this mutant, which results by the disruption o f a splice site on one allele o f the p 8 5 a gene, leading to the skipping o f exon 13 during transcription, aminoacids Met582-Asp605 are ...
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Studies of a phosphatidylinositol 3-kinase complex linked to vesicular trafficking in human cells
... Ptdlns 3-K. When cells expressing Ptdlns 3-kinase were lysed in EB buffer and lysates clarified by centrifugation to produce a supernatant (S) fraction and a Triton X-100 insoluble pellet (P), Ptdlns ...
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The regulation and function of phosphatidylinositol 3-kinase
... PI 3-kinase to the membrane by interactions of the p85 SH2 domains with selected tyrosine phosphorylated sequences within the cytoplasmic domains of growth factor receptors (Cantley et ...PI 3-kinase can ...
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A structural and functional analysis of the phosphatidylinositol 3-kinase
... PI 3-kinase enzymatic activity remains poorly ...PI 3- kinase activity intrinsic to the p i 10 subunit may take ...PI 3-kinase was originally identified as a phosphotyrosyl protein (K aplan et ...PI ...
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Gliotoxin Suppresses Macrophage Immune Function by Subverting Phosphatidylinositol 3,4,5 Trisphosphate Homeostasis
... Treatment with gliotoxin does not trigger cAMP signaling in macrophages. A previous study reported that gliotoxin induces marked alterations in the actin cytoskeleton of neutrophils (32). The authors noted that ...
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Role of phosphatidylinositol 3-kinase as an effector of Ras
... PI 3-kinase have been implicated in the chemotactic response to specific agonists in various cell ...PI 3-kinase activation block the scattering response induced by HGF/SF (Hartmann et ...PI 3-kinase ...
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Phosphatidylinositol 3 kinase signaling determines kidney size
... using phosphatidylinositol (PI) as a substrate, revealed that amino acids, but not insulin, activated the kinase activity of class III PI3K in renal proximal tubule ...
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Role of N terminal domains of p400 ATPase in the ATM interaction and DNA damage response : a thesis presented in partial fulfillment of the requirements for a the degree of Master of Science (MSc) in Genetics at Massey University, Manawatū, New Zealand
... Efficient repair of damaged DNA and preservation of genomic integrity is integral in the maintenance of proper cellular function and prevention of unrestricted cell proliferation. One critical threat to the stability of ...
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A phase Ib study of pictilisib (GDC 0941) in combination with paclitaxel, with and without bevacizumab or trastuzumab, and with letrozole in advanced breast cancer
... PI3K: Phosphatidylinositol 3-kinase; PIK3CA: Phosphatidylinositol-4,5- bisphosphate 3-kinase catalytic subunit alpha; PK: Pharmacokinetics; PR: Partial response; PTEN: Phosphatase and tensin ...
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