摘要:
Disclosed are monoclonal antibodies to the HBsAg which are prepared by forming hybridomas between human peripheral blood lymphocyte cells, derived from humans having high titers of anti-HBsAg antibodies, and myeloma cells, cloning the hybridomas and selecting the antibody-producing clones. The monoclonal antibodies react with all the subtypes of the HBsAg and are very effective in diagnosis and treatment of diseases due to the viral infection.
摘要:
Described is a highly sensitive immunoassay method for determining the amounts of TSH contained in body fluids, in which an anti-β-subunit TSH monoclonal antibody having a specific association constant value is used.
摘要:
A live vaccine for infectious laryngotracheitis, which comprises culture cells infected with attenuated infectious laryngotracheitis virus. Also, a live combined vaccine for infectious laryngotracheitis and Marek's disease, which comprises culture cells infected with attenuated viruses of these two diseases. These vaccines can be used on day-old (newborn) chicken, by subcutaneous or intramuscular injection, to give them immunity from infection by the virus or viruses.
摘要:
Disclosed is an improved method for the purification of Japanese encephalitis virus, which comprises subjecting a solution containing the Japanese encephalitis virus to column chromatography using, as a gel for chromatography, a sulfuric acid ester of cellulose or a crosslinked polysaccharide. The method can provide highly purified Japanese encephalitis virus, which is useful for obtaining an effective vaccine against Japanese encephalitis.
摘要:
Described is a method for producing highly pure LPF-HA (Leucocytosis-promoting Factor Hemagglutinin) from culture media of Bordetella pertussis in a high yield by an affinity chromatography using a denatured ceruloplasmin as a ligand. The LPF-HA obtained by this invention is highly pure and contains almost no endotoxin of B. pertussis and is useful for the preparation of various reagents utilizing the physiological activities, of a medicine for treating diabetes and of a pertussis vaccine.
摘要:
Disclosed is a potential-causing element, in the form of an electrode or a membrane, for use in immunosensors, which comprises a polypyrrole or polythiophene film bound with an antigen or an antibody. The potential-causing element can be prepared in an easy manner through electrolytic polymerization of pyrrole or thiopene so as to control the thickness of the polymer film which will develop desired immunosresponse characteristics.
摘要:
Recombinant plasmids are constructed by inserting a DNA fragment coding for a fused protein of an adult T cell leukemia virus antigen peptide and an enzyme into a vector DNA. Microorganisms are transformed with the recombinant . plasmid and thereafter cultured to express the fused protein. The fused protein is useful for the detection and diagnosis of adult T cell leukamia.
摘要:
Disclosed are certain animal sera and ascites that are useful for inhibiting the nonspecific-reactions occuring when carrying out an immunological assay with monoclonal antibodies (MCA). The use of the inhibitor makes the assay very accurate.
摘要:
Disclosed is an improved method for the purification of an influenza virus, which comprises subjecting a solution containing the influenza virus to column chromatography using, as a gel for chromatography, a sulfuric acid ester of cellulose or a crosslinked polysaccharide. The method can provide highly purified influenza virus which is useful for obtaining an effective vaccine against influenza.