摘要:
The present invention provides a gene encoding a fucose transporter, a fucose transporter polypeptide, a method for screening for a compound that binds to a fucose transporter or a compound that inhibits fucose transport activity, a cell having inhibited fucose transporter functions, and a cell wherein the expression of the fucose transporter is inhibited. The present invention further relates to a method for producing recombinant protein, and specifically, to a method for producing protein by which fucose existing within the Golgi apparatus of a host cell is decreased, a method for inhibiting the addition of fucose to protein by which fucose existing within the Golgi apparatus of a host cell is decreased upon production of recombinant protein using the host cell, a method for increasing the cytotoxic activity of an antibody by which an antibody is produced using a cell wherein fucose existing within the Golgi apparatus is decreased, and a cell having a Golgi apparatus wherein fucose existing within the Golgi apparatus is deceased.
摘要:
The present invention relates to a method of producing a recombinant protein, particularly an antibody, using a cell in which the function of a fucose transporter is inhibited, and it also provides a cell in which the expression of fucose transporter genes on both homologous chromosomes is artificially suppressed.
摘要:
IgM car be obtained in the form of a pentamer by placing the genes encoding the H, L, and J chains on the same vector to transform appropriate host cells. The gene encoding the J chain may be introduced by co-transfection. When no J chain is expressed, the IgM is produced as a hexamer. The transformants obtained according to the present invention achieve a hish yield of IgM. The present invention also provides methods which enable separation and quantification of polymeric IgM.
摘要:
A DNA coding for a blood-borne non-A, non-B hepatitis specific antigenic protein and corresponding to an RNA directly isolated from a human blood or liver tissue is disclosed. This antigenic protein can be produced by using the DNA, and the antigenic protein binds to a antibody in the serum of the patient with the non-A, non-B hepatitis. Therefore, the antigenic protein is useful for the diagnostic measurement of an antibody against the non-A, non-B hepatitis specific antigen.
摘要:
The invention relates to a modified antibody which contains two or more H chain V regions and two or more L chain V regions of monoclonal antibody and can transduce a signal into cells by crosslinking a cell surface molecule(s) to thereby serve as an agonist. The modified antibody can be used as a signal transduction agonist and, therefore, useful as a preventive and/or remedy for various diseases such as cancer, inflammation, hormone disorders and blood diseases.
摘要:
The present invention relates to a method of producing a recombinant protein particularly an antibody using a cell in which the function of a fucose transporter is inhibited. According to the present invention, a cell in which the expression of fucose transporter genes on both homologous chromosomes is artificially suppressed is provided.
摘要:
An anti-glypican 3 antibody for use in the treatment of cancer is provided wherein the cancer is selected from the group consisting of lung cancer, colon cancer, mammary cancer, prostate cancer, leukemia, lymphoma and pancreatic cancer.