ESTAÑOCALCINA HUMANA Y USOS DE LA MISMA PARA INHIBIR LA ADIPOGENESIS

• Main Authors: TOMOYASU, AKIHIRO, YANO, KAZUKI, NAKAGAWA, NOBUAKI, GOTO, MASAAKI, KOBAYASHI, FUMIE, YASUDA, HISATAKA
• Format: Patent
• Language: Spanish
• Published: 16.12.2007
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; ORGANIC CHEMISTRY; PEPTIDES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PROCESSES USING MICROORGANISMS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; VINEGAR; WINE

Una proteína aislada de fibroblastos pulmonares fetales humanos; que se purifica de un caldo de cultivo de fibroblastos pulmonares fetales humanos por cromatografía usando columna de intercambio iónico, columnas de afinidad de heparina y columnas de fase inversa; y que se caracteriza por las siguientes propiedades: a) tiene una actividad que suprime la diferenciación y/o maduración de adipocitos, b) tiene un peso molecular por electroforesis en gel de SDS-poliacrilamida de aproximadamente 45 kD en condiciones no reductoras, y aproximadamente 28 kD y/o 23 kD en condiciones reductoras, c) muestra afinidad a heparina de acuerdo con un intervalo específico de concentraciones de NaCI, d) contiene cadenas de azúcar unidas a N, que se retiran para formar una proteína con PM de aproximadamente 18 kD por SDS-PAGE en condiciones reductoras, y e) está compuesta por la secuencia de aminoácidos mostrada en la SEC ID Nº 13. A novel protein and a process of producing the protein is provided. The protein is a glycoprotein having activity of suppressing the differentiation and/or maturation of adipocyte, having a molecular weight of about 45 kD under non-reducing conditions and about 28 kD and/or 23 kD under reducing conditions, and exhibiting affinity to heparin. A process of producing the protein comprising culturing human fibroblasts and purifying the culture broth by chromatography using an ion exchange column, affinity column, and reverse phase column. A cDNA encoding the protein and a process of producing the protein using the cDNA are also provided. The protein of the present invention is useful as a pharmaceutical composition for preventing or treating obesity or as an antigen for establishing immunological diagnosis, etc..