摘要:
It is intended to provide a method of isolating a polynucleotide encoding an antibody against a lesion which involves the following steps: (a) the step of isolating B cells infiltrating into the target lesion; and (b) the step of obtaining a polynucleotide encoding an antibody from the thus isolated B cells. As examples of the lesion, cancer tissues and so on can be cited. Thus, an antibody gene can be obtained without resort to cloning B cells. As a result, it also becomes possible to obtain a gene encoding a human-origin antibody wherein cloning can be hardly effected. By using a cancer tissue as the lesion, a gene of an antibody against cancer can be obtained.
摘要:
A novel gene having a reverse transcriptase motif; the full base sequence of this gene isolated; a protein encoded by the gene; and an antibody against this protein. They are useful in developing a method for detecting telomerase activity, a method for detecting cancer cells, a telomerase activity inhibitor and a method for screening a telomerase activity inhibitor.
摘要:
The present inventors identified inhibition of a combination of EGFR ligands that serve as targets for inhibition of cancer cell proliferation. More specifically, EREG antagonists and TGF± antagonists were found to be useful as inhibitors of cell growth. The present invention relates to pharmaceutical compositions containing EGF family ligand antagonists as components.
摘要:
It is intended to facilitate obtaining of antibody-producing cells infiltrating virus-infected cells, cancerous cells, abnormal cells constituting benign hyperplasia, etc. and to highly efficiently produce an antibody and nucleic acid coding for the same from the antibody-producing cells. It has been found that when a cancer-ridden tissue containing infiltrative lymphocytes is transplanted into a highly immunocompromised animal having none of T cell, B cell and NK cell and exhibiting a low IFN producing capability, unexpectedly, the differentiation and proliferation of infiltrative lymphocytes are promoted, and the number of plasma cells capable of producing an antibody that recognizes the cancer-ridden tissue is strikingly increased, and the plasma cells can be easily isolated, and from the plasma cells, there can be easily prepared the antibody or nucleic acid coding for the antibody.
摘要:
Purified immunocytes were analyzed for expression frequencies, and the NKIR gene expressed specifically in natural killer (NK) cells was successfully identified. The NKIR gene encodes a receptor. Agonists and antagonists for the receptor can be identified by using the receptor.
摘要:
A method of measuring the cell death of target cells characterized in that target cells containing a gene encoding a membrane protein capable of inducing cell death and a gene encoding a marker protein are incubated and then the marker protein leaked outside the cells due to cell death is measured.