Composite antibodies of human subgroup IV light chain capable of binding to tag-72

• Main Authors: RUTH A. RICHARD, KIM S. JOHNSON, PETER S. MEZES
• Format: Patent
• Language: English
• Published: 19.07.1993
• Edition: 5
• 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; PROCESSES USING MICROORGANISMS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS; SPIRITS; TESTING; VINEGAR; WINE

2121041 9312231 PCTABS00023 This invention concerns a subset of composite Hum4 VL, VH.alpha.TAG antibody with high affinities to a high molecular weight, tumor-associated sialylated glycoprotein antigen (TAG-72) of human origin. These antibodies have variable regions with (1) VL segments derived from the human subgroup IV germline gene and (2) a VH segment which is capable of combining with the VL to form a three dimensional structure having the ability to bind TAG-72. in vivo methods of treatment and diagnostic assay using these composite antibodies is also disclosed.