摘要:
The present invention is intended to provide a method of rapidly, simply and accurately measuring a recombinant protein. As means for resolution, the protein quantity is measured by causing the expression of a fusion protein with the target protein and epitope tags containing two types of epitopes, bringing them into contact with detection antibodies which specifically recognize each epitope, and detecting a phenomenon caused by both detection antibodies coming close to each other.
摘要:
The invention provides a more highly accurate assay for measuring the transcriptional activity of a test substance. Disclosed is a reporter gene assay, comprising the steps of contacting a cell having a vector wherein a reporter gene containing a gene encoding an epitope tag is ligated downstream to a recognition sequence of a transcription factor and a nucleotide sequence necessary for transcriptional initiation, with a test substance and detection antibodies; detecting a phenomenon caused by the two kinds of detection antibodies coming close to each other; and correlating the detected phenomenon with the effect of the test substance on transcriptional regulatory mechanism.
摘要:
The present invention provides a new immunogen, a novel antibody having high specificity for MTA (5′-deoxy-5′-methylthioadenosine), methods of treatment and medicaments prepared using said antibody, and sensitive assays for measuring spermidine synthase activity.
摘要:
The present invention provides a novel monoclonal antibody that is specific for a C-terminal neoepitope of a collagen fragment and has substantially equal binding affinity whether proline contained in the neoepitope is in a non-hydroxylated form or in a hydroxylated form, and an immunoassay, a measurement method, a kit and the like using the antibody. The antibody allows for quantification of a collagen fragment generated by digestion of a biological sample with a collagenase present in the sample, regardless of the presence or absence of a hydroxylated form of proline in the neoepitope.
摘要:
Provided are a humanized monoclonal antibody against PcrV or a part thereof, and a pharmaceutical composition containing the same as an active ingredient, as an effective means for therapy of infection, particularly infection with Pseudomonas aeruginosa. Concretely, the humanized monoclonal antibody of the present invention has an excellent inhibitory activity on the cytotoxicity with respect to a target cell of Pseudomonas aeruginosa. Also, the humanized monoclonal antibody of the present invention has a high affinity for PcrV.
摘要:
An objective of the present invention is to provide a MUC1 antibody having high specificity to cancer cells. The objective has been achieved by the present inventors who found that a cancer-specific sugar chain can be specifically recognized in MUC1 and a cancer cell expressing MUC1 having such a cancer cell specific sugar chain can be recognized. The present invention provides an antibody, an antigen-binding fragment thereof or a MUC1-binding molecule, having, for example, 40-fold specificity or more for a cancer-associated structure of MUC1 as compared to that of a normal tissue-associated structure of MUC1.
摘要:
CD30 is a receptor expressed on cells of Hodgkin's disease and certain leukemias. The extracellular portion of CD30 is cleaved, releasing a form known as sCD30. The invention relates in part to the discovery that a residual, extracellular “stalk” of CD30 remains after cleavage of sCD30. The stalk provides an advantageous and previously unrecognized target for immunotoxins. The invention provides antibodies that bind to the CD30 stalk or to epitopes destroyed upon the cleavage of CD30 which results in the stalk. The invention further provides new anti-CD30 antibodies that form effective immunotoxins and are particularly suitable for making disulfide stabilized Fv (“dsFv”)-immunoconjugates. The dsFv immunoconjugates can be used as reagents to label CD30-expressing cancer cells or to inhibit the growth of CD30-expressing cancer cells. Moreover, the invention provides anti-CD30 antibodies that activate complement-dependent cytotoxicity.
摘要:
Provided is an effective means for therapy of infection, particularly infection with Pseudomonas aeruginosa. Provided are a monoclonal antibody against PcrV or a part thereof, and a pharmaceutical composition containing the same as an active ingredient. Concretely, monoclonal antibody of the present invention has excellent inhibiting activity on cytotoxicity with respect to a target cell of Pseudomonas aeruginosa. Also, the monoclonal antibody of the present invention has high affinity with PcrV.
摘要:
The present invention relates to a sandwich immunoassay for rapidly and readily measuring N-peptide using two kinds of monoclonal antibodies recognizing different portions of the N-peptide. The method for measuring N-peptide or a precursor thereof includes the steps of: incubating a mixture containing a sample and a first monoclonal antibody recognizing a portion of N-peptide; adding a labelled second monoclonal antibody recognizing a portion of N-peptide to the mixture, followed by further incubation; and detecting the resulting antigen-antibody complex in the mixture. Alternatively, the method includes the steps of: incubating a mixture containing a sample, a first monoclonal antibody recognizing a portion of N-peptide, and a labelled second monoclonal antibody recognizing another portion of N-peptide; and detecting the resulting antigen-antibody complex.
摘要:
A neutralizing monoclonal antibody specifically reacting with MMP13, a method of neutralizing enzyme activity of MMP13 and an immunological measuring method each using the antibody, as well as a diagnostic agent and a pharmaceutical composition containing the antibody, are provided. Various antibodies to MMP13 have been hitherto obtained, but an antibody having neutralizing activity against MMP13 has not been obtained. The present inventors intensively studied, as a result, found out a neutralizing antibody having specificity for MMP13, resulting in completion of the present invention.