81 results about "Protein Tyrosine Kinase Inhibitors" patented technology

The present invention provides a method for identifying inhibitors of protein kinases. Methods are also provided for inhibiting protein kinase activity. Specific non-peptide protein tyrosine kinase inhibitor are provided. The protein kinases produced using the method of the present invention may be used to treat a number of conditions in patients, including cancer, psoriasis, arthrosclerosis, or immune system activity.

The present invention describes polynucleotides that have been discovered to correlate to the relative intrinsic sensitivity or resistance of cells, e.g., lung cell lines, to treatment with compounds that interact with and modulate, e.g., inhibit, protein tyrosine kinases, such as, for example, members of the Src family of tyrosine kinases, e.g., Src, Fgr, Fyn, Yes, Blk, Hck, Lck and Lyn, as well as other protein tyrosine kinases, including, Bcr-abl, Jak, PDGFR, c-kit and Ephr. These polynucleotides have been shown, through a weighted voting cross validation program, to have utility in predicting the resistance and sensitivity of lung cell lines to the compounds. The expression level of some polynucleotides is regulated by treatment with a particular protein tyrosine kinase inhibitor compound, thus indicating that these polynucleotides are involved in the protein tyrosine kinase signal transduction pathway, e.g., Src tyrosine kinase. Such polynucleotides, whose expression levels correlate highly with drug sensitivity or resistance and which are modulated by treatment with the compounds, comprise polynucleotide predictor or marker sets useful in methods of predicting drug response, and as prognostic or diagnostic indicators in disease management, particularly in those disease areas, e.g., lung cancer, in which signaling through the protein tyrosine kinase pathway, such as the Src tyrosine kinase pathway, is involved with the disease process.

Various thienopyrimidine-based analog compounds are able to selectively inhibit the Src family of tyrosine kinases. These compounds are useful in the treatment of various diseases including hyperproliferative diseases, hematologic diseases, osteoporosis, neurological diseases, autoimmune diseases, allergic / immunological diseases, or viral infections.

The invention discloses an EGFR inhibitor. The EGFR inhibitor is of the structure shown in the formula (I) and is a compound including alpha, beta-unsaturated carboxylic acid amides. Meanwhile, the invention discloses a preparing method of the compound and the application of the compound serving as a protein tyrosine kinase inhibitor, especially the inhibiting function on T790M variant EGFR as the EGFR inhibitor, and the application on treating diseases such as the kidney cancer, the ling cancer, the prostate cancer, the pancreatic cancer the breast cancer and the spongiocytoma which are related to EGFR over expression. The structure is shown in the specification.

The invention relates to a dicoumarol compound shown in a general formula I, wherein definition of each substituent is described in the specification. The invention also relates to a preparation method of the dicoumarol compound, and application of the dicoumarol compound serving as protein tyrosine kinase inhibitor in the field of tumor resistance.

Compounds useful for countering undesired toxic effects to cells, tissues or organs having formula (I) wherein: Ar is a group of formulae (i) or (ii), n is 0 or, when Ar has formula (i) above, then n may also be 1, R is CN, -GC(S)NH2, -C(O)NHR3 or, when R1 is 4-NO2 add R2 is H or 3-OH, then R may also be a group of formulae (iii), (iv), (v), (vi) where R3 is H, phenyl, phenyl(lower alkyl) or pyridylmethyl; R1 and R2 are each independently H, OH, NO2 or, when R is CN, also CH3, F, or CF3, provided that both R1 and R2 are not simultaneously H.

The present invention relates to thienopyrmidine compounds of formula (I) (one of A1 and A2 is S and the other is CH), salts thereof, as well as use and preparation of the same. These compounds are inhibitors of various protein tyrosine kinases (PTKs) of the ErbB family and consequently are useful in the treatment of disorders mediated by aberrant activity of such kinases.

Implantable medical devices having an anti-restenotic coatings are disclosed. Specifically, implantable medical devices having coatings of proteintyrosine kinase inhibitors are disclosed. The anti-restenotic protein-tyrosine kinase inhibitor is 4+4-Methyl-1-piperazinyl)methyl]-N-[4-methyl-3-[[4-(3-pyridinyl)-2pyrimidinyl]amino]-phenyl]benzamide methanesulfonate and pharmaceutically acceptable derivatives thereof (imatinib mesylate). The anti-restenotic medial devices include stents, catheters, micro-particles, probes and vascular grafts. The medical devices can be coated using any method known in the art including compounding the protein-tyrosine kinase inhibitor with a biocompatible polymer prior to applying the coating. Moreover, medical devices composed entirely of biocompatible polymer-protein-tyrosine kinase inhibitor blends are disclosed. Additionally, medical devices having a coating comprising at least one proteintyrosine kinase inhibitor in combination with at least one additional therapeutic agent are also disclosed. Furthermore, related methods of using and making the antirestenotic implantable devices are also disclosed.

The invention provides a method for the treatment of Ph+ leukemia in a patient comprising administering to the patient (i) a BCR-ABL tyrosine kinase inhibitor, and (ii) an agent which selectively binds to a cell surface receptor expressed on Ph+ leukemic stem cells. The invention further provides for the use of (i) and (ii) in, or in the manufacture of a medicament for, the treatment of Ph+ leukemia in a patient; and a composition for the treatment of Ph+ leukemia in a patient comprising (i) and (ii); and kits comprising (i) and (ii). In some embodiments, the tyrosine kinase inhibitor is or is not imatinib; or is selected from the group consisting of dasatinib, nilotinib, bosutinib, axitinib, cediranib, crizotinib, damnacanthal, gefitinib, lapatinib, lestaurtinib, neratinib, semaxanib, sunitinib, toceranib, tyrphostins, vandetanib, vatalanib, INNO-406, AP24534, XL228, PHA-739358, MK-0457, SGX393 and DC2036; or is selected from the group consisting of dasatinib and nilotinib. In some embodiments, the agent binds to a receptor involved in signalling by at least one of IL-3, G-CSF and GM-CSF. In some embodiments, the agent is a mutein selected from the group consisting of IL-3 muteins, G-CSF muteins and GM-CSF muteins. In some embodiments, the mutein is an IL-3 mutein. In some embodiments, the agent is a soluble receptor which is capable of binding to IL-3.

The invention provides a quinazoline sugar derivative and a preparation method and application thereof, which can solve the problem of low activity of inhibiting tyrosine kinase in the prior art. The prepared quinazoline sugar derivative has high water solubility and high activity of inhibiting human skin cancer cells A431, and can be used for preparing medicaments for preventing or treating tumors. The quinazoline sugar derivative provided by the invention is a kind of compounds which have novel structures and comprise abundant glycosyl group segments at a 6-bit side chain of a quinazoline parent ring, wherein the raw materials adopted in a method for performing glycosylation on quinazoline rings are readily available; the synthesis method is simple; the purification mode is simple and convenient and quick; and the quinazoline sugar derivative has high water solubility, high biological activity, particularly obvious activity of selectively inhibiting an EGFR, and obvious anti-tumor effect, so the kind of compounds has a wide application prospect in medicaments for preventing or curing tumors. The quinazoline sugar derivative comprises the following structural formula.

A method is provided for reducing hypertension and / or heart failure in a mammal. Preferably, the method is used to treat or prevent tissue damage to a human heart. The method includes administering an effective amount of a Jak2 inhibitor, preferably a tyrphostin, such as AG490.

The present invention provides a method for protecting against or treating hearing loss in a subject. This method involves administering an effective amount of a protein tyrosine kinase inhibitor to the subject to protect against or to treat hearing loss.

An antibody is disclosed for the detection of phosphorylated c-KIT. A method of diagnosing and monitoring cancers responsive to treatment using an anti-phospho-c-KIT antibody are also disclosed. A diagnostic kit is also provided for the detection and monitoring of cancers responsive to tyrosine phosphorylation inhibitor treatment.

The invention relates to (among other things) oligomer-PTK inhibitor conjugates and related compounds. A compound of the invention, when administered by any of a number of administration routes, exhibits advantages over PTK inhibitor compounds lacking a water soluble, non peptidic oligomer.

This invention provides compounds of formula (1) which are useful as inhibitors of protein tyrosine kinase and are antiproliferative agents.

A method of inducing immune tolerance in a first mammal to antigens of a second, non-syngeneic, mammal, is disclosed. The method is utilized to minimize graft rejection and / or reduce graft-versus-host diseases in transplantation procedures and to produce hematopoietic mixed chimeras. Methods of determining the activity of tyrphostins and the optimal concentration thereof in this method are also disclosed.

The invention belongs to the field of medical technology, which relates to diarylurea derivatives or salts accepted in medicine shown in formula I, wherein substituents of Ar1, Ar2, X and n have definitions given in an instruction. The derivatives shown in the formula I can be used for preparing receptor protein-tyrosine kinase inhibitor (RPTKI), and medicaments used for treating and / or preventingcancer or other proliferative diseases. The derivatives or salts accepted in medicine can be taken as active ingredients for preparing composition or different preparations used in clinical requirement mixed together with different carriers or excipient in medicine so as to be used for treating and / or preventing from various cancers.

A compound of formula (I), a pharmaceutically acceptable salt, or hydrate thereof, and a method of preparing the same. A method of treating or preventing a physiological disorder caused by abnormal protein tyrosine kinase activity in a mammal comprising administering to said mammal a pharmaceutical composition comprising a compound of formula (I).

This invention is directed to potent inhibitors of protein tyrosine kinase alone or in synergistic combination with antiangiogenic or chemotherapeutic agents for the abrogation of mature vasculature within chemotherapeutic refractory tumors, pharmaceutical compositions comprising these compounds, and to the use of these compounds for treating a patient suffering from or subject to disorders / conditions involving cell proliferation, and particularly treatment of brain cancer, ovarian cancer, pancreatic cancer prostate cancer, and human leukemias, such as CML, AML or ALL.

There are disclosed methods for inhibiting dynamin-dependent endocytosis in cells comprising treating the cells with an effective amount of a compound of formula (I), or a dimeric tyrphostin, physiologically acceptable salt, or prodrug thereof. Compounds useful in the methods described are also provided. The inhibition of dynamin-dependent endocytosis of cells is applicable to the treatment of epilepsy and neurological disorders and conditions.

The present invention provides new tyrphostin derivatives acting as protein tyrosine kinase (PTK) inhibitors and receptor tyrosine kinase (RTK) inhibitors, and / or which directly or indirectly affect proteins in the PTK-mediated signal transduction pathway, methods of their preparation, pharmaceutical compositions including such compounds, and methods of using these compounds and compositions, especially as chemotherapeutic agents for preventions and treatments of PTK and RTK related disorders such as metabolic, fibrotic, and cell proliferative disorders, in particular psoriasis and cancer.