Antibodies and fv fragment recognizing antigen ior c2

• Main Authors: MARTA AYALA AVILA, MAYRA RAMOS ZUZARTE, HANSSEL BELL GARCIA, ENRIQUE RENGIFO CALZADO, JORGE VICTOR GAVILONDO COWLEY, MARTA DUENAS PORTO, ROLANDO PEREZ RODRIGUEZ, CRISTINA MARIA MATEO DE ACOSTA DEL RIO, LOURDES TATIANA ROQUE NAVARRO, NORMANDO IZNAGA ESCOBAR, ALEJO MORALES MORALES
• Format: Patent
• Language: English
• Published: 30.05.2001
• Edition: 7
• 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; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; ORGANIC CHEMISTRY; PEPTIDES; PHYSICS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; TESTING; VINEGAR; WINE

The invention relates to the obtention of novel recombinant antibodies from murine antibody IOR C5 produced by the hybridoma deposited with the ECCC 97061101 according to the Budapest Treaty. Said recombinant antibodies were obtained using recombinant DNA technology and are characterized in that they recognize antigen ior C2. The recombinant antibodies are specifically chimeric antibody, humanized antibody, and single chain Fv fragment. The chimeric antibody contains the variable domains of the murine immunoglobuline and the constant regions of the human immunoglobuline. The humanized antibody contains the constant regions of human immunoglobuline and has been specifically modified in the murine frameworks regions (FRs) and within the latter, in those areas that may result in an antigenic site for cells T. The Fv fragment contains the variable domains of murine immunoglobuline. The invention also relates to the utilization of recombinant antibodies derived from murine antibody ior C5 in the diagnosis and therapy of colorectal tumors, the metastasis thereof and recurrences.