39 results about "Fibroblast growth factor receptor 2" patented technology

The present invention relates to a therapeutic agent represented by the General formula (I), or a pharmacologically acceptable salt thereof, or a solvate of the compound or the salt thereof:

The therapeutic agent comprises a substance having the activity of inhibiting kinase activity of fibroblast growth factor receptor 2 (“FGFR2”). The therapeutic agent can be used for treating undifferentiated gastric cancer, and can also be used to treat organisms comprising a cell overexpressing FGFR2 or a cell expressing mutant FGFR2, or both. The present invention further relates to a pharmaceutical composition comprising an FGFR2 inhibitory and methods of treatment therewith. The present invention also relates to a method for predicting the effect of an FGFR2 inhibitory substance on a patient.

The invention discloses a serum-free medium for culturing placenta mesenchymal stem cells. The serum-free medium takes a DMEM (Dulbecco Modified Eagle Medium) culture solution as a basis and also contains a fibroblast growth factor receptor 2, growth hormone, insulin, transferrin, glutathione, BMP-4, L-glutamine, sodium pyruvate, non-essential amino acids and beta-mercaptoethanol. According to various serum-free media provided by the invention, growth and proliferation of the placenta mesenchymal stem cells in a serum-free medium system can be effectively promoted, the placenta mesenchymal stem cells have higher growth and proliferation rate in the serum-free medium system compared with a serum cell culture medium, the characteristics of the stem cells are preserved, the serum-free medium has multiple differential potentials, and the stem cells can be directionally induced into fat cells and osteoblasts.

The present invention relates generally to methods of in vitro diagnostics, in particular the use of a compound selected from the group consisting of fibroblast growth factor 23 (FGF23), inorganic phosphorus (P), the product of inorganic phosphorus and total calcium (P×tCa), osteopontin (OPN) and parathyroid hormone (PTH) as biomarker. Said biomarkers can be used to monitor the modulation of fibroblast growth factor receptor (FGFR) kinase activity, in particular its inhibition, and/or the occurrence of secondary effects of FGFR inhibition. The invention further provides methods and kits relating to these uses.

The present invention is related to antibodies with binding affinity to fibroblast growth factor receptor 2 (FGFR2) optionally with binding affinity to other FGF receptors, which block both ligand-dependent and constitutive ligand independent receptor activation. Specifically, the present invention relates to antibodies with high affinity to more than one FGF receptor subtype, and fragments thereof, useful in treating disorders including cell proliferative diseases.

The present invention is directed toward a monoclonal antibody to fibroblast growth factor receptor 2, a pharmaceutical composition comprising same, and methods of treatment comprising administering such a pharmaceutical composition to a patient.

The present invention relates to the use of Fibroblast Growth Factor Receptor I (FGFR1) extracellular domain (ECD) polypeptides for treatment of cancers characterized by ligand dependent activating mutations in Fibroblast Growth Factor Receptor 2 (FGFR2). For example, the present invention relates to the treatment of endometrial cancers and other cancers wherein tumor cells express FGFR2 mutants in the IgII-IgIII hinge region or IgIII domain of the protein, such as at amino acid positions 252 and/or 253.

Antisense compounds, compositions and methods are provided for modulating the expression of fibroblast growth factor receptor 2. The compositions comprise antisense compounds, particularly antisense oligonucleotides, targeted to nucleic acids encoding fibroblast growth factor receptor 2. Methods of using these compounds for modulation of fibroblast growth factor receptor 2 expression and for treatment of diseases associated with expression of fibroblast growth factor receptor 2 are provided.

The invention features soluble fibroblast growth factor receptor 3 (sFGFR3) polypeptides. The invention also features methods of using sFGFR3 polypeptides to treat skeletal growth retardation disorders, such as achondroplasia.

The present disclosure relates to Fibroblast Growth Factor Receptor 2-specific peptide reagents, methods for detecting epithelial-derived cancer cells such as esophageal, colorectal, gastric, pancreatic or breast carcinoma cells using the peptide reagents, and methods for targeting such cells using the peptide reagents.

The invention discloses a polypeptide capable of regulating the activity of FGFR2 (Fibroblast Growth Factor Receptor 2). The amino acid sequence of the polypeptide is Asn-Leu-Gly-Gln-Glu-Leu-Ala-Phe-Arg-Val-Pro-Asn. The polypeptide disclosed by the invention can be specifically combined with the FGFR2, plays an obviously regulating role on the activity of the FGFR2, can outstanding inhibit the activity of p-ERK (Phospho-Extracellular Signal-Regulated Kinase) contained in the main downstream signal channel MAPK (Mitogen Activated Protein Kinase) of the FGFR2, has the advantages of low molecular weight, easiness for preparation, controllability in quality, low immunogenicity and the like and has good potential application value in the field of medicines.

Antibody molecules that specifically bind to one or more isoforms expressed and/or associated with oncogenic phenotypes in a hyperproliferative cell (e.g., a cancerous or tumor cell) are disclosed. The isoform-binding antibody molecules can be used to treat, prevent and/or diagnose cancerous conditions and/or disorders. Methods of using the isoform-binding molecules to selectively detect oncogenic isoforms, to reduce the activity and/or induce the killing of a hyperproliferative cell expressing an oncogenic isoform in vitro, ex vivo or in vivo are also disclosed. Diagnostic and/or screening methods and kits for evaluating the function or expression of an oncogenic isoform are also disclosed.

Glycosylphosphatidylinositol-(GPI-) anchored HSPG glypican-1 is strongly expressed in human breast and pancreatic cancer—both by the cancer cells and in the case of pancreatic cancer the adjacent fibroblasts—whereas expression of glypican-1 is low in the normal pancreas and in chronic pancreatitis. Treatment of two pancreatic cancer cell lines, which express glypican-1, with the enzyme phosphoinositide-specific phospholipase-C (PI-PLC) abrogated their mitogenic responses to two heparin-binding growth factors: fibroblast growth factor-2 (FGF2) and heparin-binding EGF-like growth factor (HB-EGF). Treatment of MDA-MB-231 and MDA-MB-468 breast cancer cells with PI-PLC abrogates the mitogenic response to two heparin-binding growth factors, heparin-binding epidermal growth factor-like growth factor (HB-EGF) and fibroblast growth factor-2 (FGF-2). Syndecan-1 is also expressed at high levels in breast cancer tissues as well as breast cancer cells by comparison with breast normal tissues. Temporary or permanent transfection of a glypican-1 antisense construct attenuated glypican-1 protein levels and the mitogenic response to FGF2 and HB-EGF. Glypican can be used to detect the carcinoma in vitro and therapeutics that either bind to (e.g., antibodies or drugs), remove (e.g., enzymes) or prevent the expression (e.g., antisense constructs) of surface of the extracellular domain of glypican-1 are effective in retarding the growth of glypican-responsive carcinomas.

Methods are provided for quantifying the fibroblast growth factor receptor 2 protein (FGFR2) directly in biological samples that have been fixed in formalin by the method of Selected Reaction Monitoring (SRM)/Multiple Reaction Monitoring (MRM) mass spectrometry. The biological sample may be selected from tissues and cells treated with formaldehyde containing agents/fixatives including formalin-fixed tissue/cells, formalin-fixed/paraffin embedded (FFPE) tissue/cells, FFPE tissue blocks and cells from those blocks, and tissue culture cells. A protein sample is prepared from the biological sample and the FGFR2 protein is quantitated in the sample using the method of SRM/MRM mass spectrometry by quantitating in the protein sample at least one fragment peptide derived from FGFR2.

The invention discloses a nucleic acid composition, kit and detection method for detecting fusion mutation of a human FGFR2 (fibroblast growth factor receptor 2) gene. The nucleic acid composition comprises primers and probes designed for 18 fusion mutation types of the FGFR2 gene. The kit comprises the nucleic acid composition, and also comprises DNA polymerase, a PCR buffer solution, dNTPs and cations. The invention also provides a method for detecting fusion mutation of the FGFR2 gene. The method comprises the following steps: firstly, extracting RNA of a detection sample, carrying out reverse transcription to obtain cDNA, carrying out real-time fluorescent PCR reaction by using the kit with the cDNA as a template, and finally judging the negative and positive properties of the detection sample according to a Ct value. The kit can be used for simultaneously and specifically detecting 18 fusion mutations of the FGFR2 gene, is wide in mutation site coverage range, reduces the detection times, and has the advantages of high sensitivity, good repeatability, simplicity and convenience in operation, high detection speed, easiness in result interpretation and the like.

The present invention relates to compositions and methods of treating multiple sclerosis. Particularly, the present invention relates to pharmaceutical compositions comprising antibodies having affinity to both fibroblast growth factor receptor 2 (FGFR2) and FGFR3 for use in treating multiple sclerosis.

The invention relates to the technical field of biomedical science, in particular to a new target for resisting enterovirus 71 type infection, and an application. Human colon cancer cells (Caco-2) areused as target cells, an RNA interference technique is adopted for reducing expression of a target cell membrane receptor, a host factor which can effectively restrain EV71 infected human colon cancer cells is sought, and the purpose of blocking EV71 infection from a source (intestinal tract) is achieved. Through experiment, the inventor of the invention finds that the fibroblast growth factor receptor 1 (FGFR1) exerts important effects in EV71 infected Caco-2 cells, so that when the expression of the FGFR1 is reduced, the EV71 infection can be obviously restrained. The invention provides anapplication of the FGFR1 to preparation of medicines for preventing or treating enterovirus 71 type infection, and a new target and a treatment scheme are provided for clinical prevention and treatment of diseases of hand-foot-mouth diseases, meningitis, brainstem encephalitis or poliomyelitis and the like caused by the EV71 infection.