50 results about "Protein kinase B" patented technology

The invention relates to heterocyclic compounds of Formula I and compositions thereof useful for treating diseases mediated by protein kinase B (PKB) where the variables have the definitions provided herein.The invention also relates to the therapeutic use of such compounds and compositions thereof in treating disease states associated with abnormal cell growth, cancer, inflammation, and metabolic disorders.

The invention relates to thiadiazole compounds useful for treating diseases mediated by protein kinase B (PKB). The invention also relates to the therapeutic use of such thiadiazole compounds and compositions thereof in treating disease states associated with abnormal cell growth, cancer, inflammation, and metabolic disorders.

The invention relates to heterocyclic compounds of Formula I and compositions thereof useful for treating diseases mediated by protein kinase B (PKB) where the variables have the definitions provided herein.The invention also relates to the therapeutic use of such compounds and compositions thereof in treating disease states associated with abnormal cell growth, cancer, inflammation, and metabolic disorders.

The invention relates to thiazole compounds of Formula I and Formula II and compositions thereof useful for treating diseases mediated by protein kinase B (PKB) where the variables have the definitions provided herein. The invention also relates to the therapeutic use of such thiazole compounds and compositions thereof in treating disease states associated with abnormal cell growth, cancer, inflammation, and metabolic disorders.

Integrin-linked kinase (ILK) and Akt / protein kinase B (PKB) are important mediators of signaling in cardiomyocytes and can both prevent damage and promote healing associated with ischemic injury to the heart. Thus, the present invention provides for methods of screening for agents that increase the expression of ILK and / or Akt / PKB. Methods of treatment based on such agents are also provided.

Invented are novel heterocyclic carboxamide compounds, the use of such compounds as inhibitors of protein kinase B activity and in the treatment of cancer and arthritis.

Integrin-linked kinase (ILK) and Akt / protein kinase B (PKB) are important mediators of signaling in cardiomyocytes and can both prevent damage and promote healing associated with ischemic injury to the heart. Thus, the present invention provides for methods of screening for agents that increase the expression of ILK and / or Akt / PKB. Methods of treatment based on such agents are also provided.

The invention relates to thiadiazole compounds useful for treating diseases mediated by protein kinase B (PKB). The invention also relates to the therapeutic use of such thiadiazole compounds and compositions thereof in treating disease states associated with abnormal cell growth, cancer, inflammation, and metabolic disorders.

The invention provides compounds of the formula: (I) having protein kinase B inhibiting activity: wherein A is a saturated hydrocarbon linker group containing from 1 to 7 carbon atoms, the linker group having a maximum chain length of 5 atoms extending between R1 and NR2R3 and a maximum chain length of 4 atoms extending between E and NR2R3, wherein one of the carbon atoms in the linker group may optionally be replaced by an oxygen or nitrogen atom; and wherein the carbon atoms of the linker group A may optionally bear one or more substituents selected from oxo, fluorine and hydroxy, provided that the hydroxy group when present is not located at a carbon atom a with respect to the NR2R3 group and provided that the oxo group when present is located at a carbon atom a with respect to the NR2R3 group; E is a monocyclic or bicyclic carbocyclic or heterocyclic group; R1 is an aryl or heteroaryl group; and R2, R3, R4 and R5 are as defined in the claims. Also provided are pharmaceutical compositions containing the compounds, methods for preparing the compounds and their use as anticancer agents.

Processes vectors and engineered cell lines for large-scale transfection and protein production in mammalian cells, especially Chinese Hamster Ovary (CHO) cells are described in which transfection efficiencies are realized through the use of a single vector system, the use of functional oriP sequences in all plasmids, the use of codon-optimized Epstein-Barr virus nuclear antigen-1 (EBNA1) constructs the use of a fusion protein between a truncated Epstein-Barr virus nuclear antigenen-1c (EBNA1c) protein and a herpes simplex virus protein VP16, the use of a 40 kDa fully deacetylated poly(ethylenimine) as a transfection reagent, the use of co-expression of a fibroblast growth factor (FGF) and / or the use of protein kinase B to potentiate heterologous gene expression enhancement by valproic acid (VPA).

The present invention relates to a p53-activating agent capable of transferring wild-type tumor protein p53 (p53) from an inactive conformation into an active conformation capable of inducing apoptosis, for use in the treatment of melanoma, wherein said p53-activating agent is administered simultaneously or sequentially with a BRAF-inhibiting agent capable of inhibiting activity of serine / threonine-protein kinase B-Raf (BRAF) comprising an activating mutation.

Antisense compounds are provided for inhibiting PKB (protein kinase B) alpha, beta and gamma. The antisense compounds display high potency and selectivity. The antisense compounds do not suffer from problems of dimerisation or self-hybridization and have also been selected to not affect other enzymes. The antisense compounds may be used singularly or in combination to inhibit one, two or all of PKB alpha, beta and gamma and hence treat conditions in which these enzymes are important.

A cell-free assay system, which reconstitutes components of the phosphatidyl-inositol 3-kinase-mediated insulin signaling pathway including phosphatidylinositol phosphate dependent kinase-2 (“PDK2”). Alternatively, a in vitro method for phosphorylating a protein kinase B on Serine 473 or Serine 474. The invention relates generally to an in vitro method of phosphorylating a protein kinase B (“PKB” or “Akt”), to an in vitro method of assessing insulin action, and to an in vitro method of identifying an agent or process that modulates insulin signaling or any cellular activity regulated or influenced by PKB, including cell growth, mitosis, apoptosis, fuel metabolism, and oncogenic transformation. Such an agent or process may be useful in treating insulin resistance, diabetes, obesity, cancer, and a number of other diseases.

The invention provides compounds of the formula: (I) having protein kinase B inhibiting activity: wherein A is a saturated hydrocarbon linker group containing from 1 to 7 carbon atoms, the linker group having a maximum chain length of 5 atoms extending between Rand NR<2>R<3> and a maximum chain length of 4 atoms extending between E and NR<2>R<3>, wherein one of the carbon atoms in the linker group may optionally be replaced by an oxygen or nitrogen atom; and wherein the carbon atoms of the inker group A may optionally bear one or more substituents selected from oxo, fluorine and hydroxy, provided that the hydroxy group when present is not located at a carbon atom a with respect to the NR<2>R<3> group and provided that the oxo group when present is located at a carbon atom a with respect to the NR<2>R<3> group; E is a monocyclic or bicyclic carbocyclic or heterocyclic group; R is an aryl or heteroaryl group; and R<2>, R<3>, R<4> and R<5> are as defined in the claims. Also provided are pharmaceutical compositions containing the compounds, methods for preparing the compounds and their use as anticancer agents.

Processes vectors and engineered cell lines for large-scale transfection and protein production in mammalian cells, especially Chinese Hamster Ovary (CHO) cells are described in which transfection efficiencies are realized through the use of a single vector system, the use of functional oriP sequences in all plasmids, the use of codon-optimized Epstein-Barr virus nuclear antigen-1 (EBNA1) constructs the use of a fusion protein between a truncated Epstein-Barr virus nuclear antigenen-1c (EBNA1c) protein and a herpes simplex virus protein VP16, the use of a 40 kDa fully deacetylated poly(ethylenimine) as a transfection reagent, the use of co-expression of a fibroblast growth factor (FGF) and / or the use of protein kinase B to potentiate heterologous gene expression enhancement by valproic acid (VPA).

The invention provides compounds of the formula: (I) having protein kinase B inhibiting activity: wherein A is a saturated hydrocarbon linker group containing from 1 to 7 carbon atoms, the linker group having a maximum chain length of 5 atoms extending between R1 and NR2R3 and a maximum chain length of 4 atoms extending between E and NR2R3, wherein one of the carbon atoms in the linker group may optionally be replaced by an oxygen or nitrogen atom; and wherein the carbon atoms of the linker group A may optionally bear one or more substituents selected from oxo, fluorine and hydroxy, provided that the hydroxy group when present is not located at a carbon atom a with respect to the NR2R3 group and provided that the oxo group when present is located at a carbon atom a with respect to the NR2R3 group; E is a monocyclic or bicyclic carbocyclic or heterocyclic group; R1 is an aryl or heteroaryl group; and R2, R3, R4 and R5 are as defined in the claims. Also provided are pharmaceutical compositions containing the compounds, methods for preparing the compounds and their use as anticancer agents.

The invention belongs to the field of pharmacy, and relates to the application of propargyl cysteine and analogues thereof in preparation of medicaments for preventing and treating diseases related to cardiovascular system inflammation. Through in-vitro cell experiments, the results show that the propargyl cysteine and the analogues thereof can inhibit the expression of the mRNA and the protein of tumor necrosis factor alpha, interleukin-1beta and monocyte chemoattractant protein-1, increase the content of hydrogen sulfide in myocardial inflammation tissues, inhibit the expression of the mRNA of inducible nitric oxide synthase, cyclooxygenase-2 and intercellular adhesion molecule-1 related to the myocardial cells expressed inflammation, inhibit the activation of pathways ERK1 / 2 and NF-kB related to the inflammation in the myocardial cells, activate protein kinase B (Akt), and inhibit the production of oxygen free radicals in the myocardial cells, and can be prepared into the treatment medicaments for treating the diseases, such as ischemic heart disease, atherosis or myocardial infarction, related to the cardiovascular system inflammation.

The invention discloses a research method for the pharmacologic action of mangiferin on mouse diabetes. The research method comprises material selection and an experimental method, biochemical parameter evaluation, histological analysis, measurement of reactive oxygen species (ROS), determination of malondialdehyde (MDA) and antioxidase, analysis of renal tissue inflammatory factors, immunofluorescent staining, Western blotting and statistic analysis. According to the research method, a trichrome staining method is utilized to observe renal morphology; a kit is utilized to determine a blood biochemical index; levels of inflammatory cytokines, the antioxidase, the MDA and the ROS are determined; expression of fibronectin, collagen I and alpha-SMA is detected by an immunohistochemical method, and regulation of paths of TGF-beta 1 and phosphatase and tensin homolog / phosphatidylinositol 3-hydroxy kinase / protein kinase B (PTEN / PI3K / Akt) is detected by Western blotting; researches show thatthe mangiferin can significantly improve the renal dysfunction of diabetic mice; renal interstitial fibrosis can be prevented by reducing positive expression of fibronectin (FN), collagen type I (ColI) and alpha-smooth muscle actin (SMA) during therapy with the mangiferin; and meanwhile, mangiferin increases the antioxidase, reduces phosphorylation of the PI3K and Akt, inhibits the renal interstitial fibrosis, and provides more theoretical foundations for clinical application of traditional Chinese medicine in treating diabetes.

Insulin resistance is a central feature of type II diabetes and other diseases, and may affect every tissue of the body, including the pancreatic beta cell. Insulin signaling is mediated by a complex network of diverging and converging pathways, with alternative proteins and isoforms at almost every step in the process. We have previously shown that insulin activates the transcription of its own gene by signaling through Insulin Receptor A type (Ex11−), PI3 kinase and p70 s6 kinase. When studying the mechanisms underlying the glucose-stimulated activation of the glucokinase gene in pancreatic beta cells, we now demonstrate that also here secreted insulin is a key-factor. In contrast to the insulin gene, transcription of the glucokinase gene is promoted by signaling via Insulin Receptor B type (Ex11+) and protein kinase B (c-Akt). These data provide the first evidence for selectivity in insulin action via the two isoforms of the Insulin Receptor, A type (Ex11-) and B type (Ex11+), and reinforce the concept of the beta cell being an important target of insulin action.

Emission ratiometric indicators of phosphoinositides comprise a fusion protein comprising a pleckstrin homology (PH) domain of Akt (also known as protein kinase B) and a “pseudoligand” containing acidic amino acid residues, which is sandwiched between resonance energy transfer (RET) pairs, such as cyan and yellow mutants of GFP (a FRET pair). Such indicators can be used, inter alia, to monitor spatiotemporal dynamics of phosphoinositides and in high throughput assays for inhibitors of P13K, including drug screening assays.

The present invention is to provide a polypeptide specifically inhibiting the activity of Akt (Protein Kinase B), the DNA thereof, the antibody thereof, an inhibitor of Akt activity or an antitumor agent, and the like. The polypeptide comprises polypeptides (SEQ ID NO: 1, 3, 5, 7, and 9 of the sequence listing) that contain an amino acid sequence corresponding to any of the position of amino acid residue 10-24 of human TCL1, amino acid residue 8-22 of human TCL1B, amino acid residue 5-19 of human MTCP1, and amino acid residue 9-24 of mouse or rat TCL1; and the derivatives. Further, the present invention includes DNA encording the polypeptide (SEQ ID NO: 2, 4, 6, 8 or 10 of the sequence listing), and the antibodies specifically binding to the polypeptides. The polypeptide of the present invention can be used for an inhibitor of Akt activity, an antitumor agent, or the like.

The invention relates to thiazole compounds of Formula I and Formula II and compositions thereof useful for treating diseases mediated by protein kinase B (PKB) where the variables have the definitions provided herein.The invention also relates to the therapeutic use of such thiazole compounds and compositions thereof in treating disease states associated with abnormal cell growth, cancer, inflammation, and metabolic disorders.

Emission ratiometric indicators of phosphoinositides comprise a fusion protein comprising a pleckstrin homology (PH) domain of Akt (also known as protein kinase B) and a “pseudoligand” containing acidic amino acid residues, which is sandwiched between resonance energy transfer (RET) pairs, such as cyan and yellow mutants of GFP (a FRET pair). Such indicators can be used, inter alia, to monitor spatiotemporal dynamics of phosphoinositides and in high throughput assays for inhibitors of PI3K, including drug screening assays.

The invention relates to use of axitinib and an analogue thereof in preparation of a blood-brain barrier permeability regulating agent. The blood-brain barrier permeability regulating agent can reducethe blood-brain barrier permeability and promote the recovery of a blood-brain barrier function from a pathological damage state to an approximate physiological barrier state. The axitinib and the analogue thereof, by suppressing vascular endothelial cell growth factor-phosphatidylinositol kinase-protein kinase B signaling pathway, can reduce the down-regulating degree of pathological blood brainbarrier tightly attached protein Claudin-5 / Occludin and reduce the blood-brain barrier permeability. The blood-brain barrier permeability regulating agent can be used for treatment of related diseases that cause changes in the blood-brain barrier permeability.

Invented are novel 1 H-imidazo[4,5-c]pyridin-2-yI compounds, the use of such compounds as inhibitors of protein kinase B activity and in the treatment of cancer and arthritis.