Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Enzymatic production of a protein or polypeptide
Patent
1985-05-09
1987-07-28
Moskowitz, Margaret
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Enzymatic production of a protein or polypeptide
435 70, 4351722, 435240, 435241, 435948, 530387, 530388, 424 88, 424 93, 935 89, 935 93, 935 95, 935104, 935106, 935107, 935108, 935110, C12P 2100, C12N 500, C12N 1500, A61K 3900
Patent
active
046832009
ABSTRACT:
Disclosed herein is a monoclonal antibody of the IgM class which reacts with a glycoprotein antigen having a molecular weight by gel filtration of 1,000,000 or higher, the antigenic determinant to be recognized being a sugar chain with a sialic acid residue at the end thereof. The monoclonal antibody has the following characteristics: (1) a reactivity with human cancers of stomach, large intestine, pancreas, breast, lung, biliary duct, uterus and esophagus; (2) a reactivity with normal human submaxillary gland, proximal renal tubule, bronchial gland, squamous epithelial corneum, pancreatic Langerhans' islands, liver cell membrane and duodenal gland; (3) a reactivity with human intestinal metaplastic gastric mucosa; and (4) a non-reactivity with normal human prostate gland, biliary duct and pancreatic duct.
Also provided in the invention is a method for production of monoclonal antibodies. The method comprises administering or implanting cancer cells or tissue to an animal having no thymus, propagating the cells or tissue in the animal, administering T cells or both T cells and B cells to the animal, taking antibody-producing B cells from the animal, fusing the B cells with myeloma cells, selecting fused cells producing an antibody against the cancer cells or tissue, cloning the fused cells, and culturing the cloned fused cell.
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Hirohashi Setsuo
Shimosato Yukio
Watanabe Masahiko
Hirohashi Setsuo
Moskowitz Margaret
Nippon Kayaku Kabushiki Kaisha
Shimosato Yukio
Watanabe Masahiko
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