摘要:
The invention relates to the use of the type III secretion system of bacteria to stimulate immune responses against tumor antigen(s) for treating antigen-loss variant tumors. Methods are provided for stimulating and/or increasing an immune response against tumor antigens. The invention also relates to the preparation of antigen presenting cells from peripheral blood mononuclear cells using bacteria having a type III secretion system.
摘要:
The invention provides for the production of several humanized murine antibodies specific for the antigen FB5, which is recognized by the murine antibody FB5. The FB5 antigen is expressed on the luminal surface of vascular endothelial cells of a wide range of malignant tumors. The invention also provides for numerous polynucleotide encoding humanized FB5 specific antibodies, expression vectors for producing humanized FB5 specific antibodies, and host cells for the recombinant production of the humanized antibodies. The invention also provides methods for detecting cancerous cells (in vitro and in vivo) using humanized FB5 specific antibodies. Additionally, the invention provides methods of treating cancer using FB5 specific antibodies.
摘要:
A method for screening substances for oncogenic activity is disclosed. The method involves administering the substance to an animal lacking responsiveness to interferon.gamma. and detecting a higher frequency or earlier time of tumor formation in the test animal compared to control animals. In addition, a method is provided for predicting the aggressiveness of a tumor in a patient.
摘要:
The invention relates to the production of ganglioside specific antibodies. These antibodies are produced following immunization with lipopolysaccharide antigen of Campylobacter jejuni. The antibodies bind to monosialogangliosides, including GM2 and GM1.
摘要:
This invention provides a method of imaging a colorectal carcinoma lesion in a human patient which comprises administering to the patient a monoclonal antibody capable of binding to a cell surface antigen associated with the colorectal carcinoma lesion and which is labeled with an imaging agent under conditions so as to form a complex between the monoclonal antibody and the cell surface antigen, imaging any complex so formed, and thereby imaging the colorectal carcinoma lesion.This invention also provides a monoclonal antibody designated AS 33 (ATCC Accession No. HB 8779) and the hybridoma which produces it.
摘要:
The invention involves monoclonal antibodies which specifically bind to a cell surface antigen characteristic of tumor vascular endothelium. The antigen, referred to as endosialin, is a glycoprotein and has a molecular weight of about 165 kDa as determined by SDS-PAGE. The protein portion of the molecule has a molecular weight of about 95 kDa. Also disclosed are various uses of the monoclonal antibody and the antigen.
摘要:
The subject invention describes a method of determining the secretor status of an individual which comprises obtaining a sample of a biological fluid from the individual and determining whether the sample includes the Lewis.sup.a or Lewis.sup.b antigens, the presence of the Lewis.sup.a antigen in the sample indicating that the individual is a nonsecretor, the presence of the Lewis.sup.b antigen in the sample indicating that the individual is a secretor, and the presence of neither antigen indicating the secretor status of the individual is inconclusive. The invention also provides a method of further determining the secretor status of an individual of having an inconclusive secretor status which comprises determining whether the biological fluid sample from the individual includes A, B or precursor type 1 chain antigens, the presence of any such antigens in the sample indicating that the individual is a secretor, the lack of any such antigens in the sample indicating that the individual is a nonsecretor. The invention provides a method of determining whether a human female subject is susceptible to urogenital infection which comprises determining whether the subject is a secretor according to the hereinabove-described methods, a secretor being susceptible to such an infection. The present application also provides a method of disstinguishing urothelial carcinoma from normal tissue, and identifying human germ cell tumor as seminoma or nonseminoma. Finally, the invention provides a panel comprising some or all of the monoclonal antibodies H 29-36 (ATCC No. HB 8248), S8 (ATCC No. HB 9036), T 174 (ATCC No. HB 8242), T 218 (ATCC No. HB 8249), P 12 (ATCC No. HB 8551), F 3 (ATCC No. HB 8217), and K 21 (ATCC No. HB 8549).
摘要:
Monoclonal antibodies to human antigens present on a majority of human cells are described. These mAbs have use in a method for isolating mAb for less expressive antigens, such as cancer antigens, or other antigens associated with particular abnormalities, disorders or disease state. The latter mAbs may be weaker than or not present to such an extent as the first mentioned mAbs. For example, these less expressive mAbs would be useful for cancer diagnosis, especially in the early stages, and for cancer treatment as well where the cancer cell is the target cell for the mAb. The mAb can be tagged with a tissue destructive agent such as a radio-label, a toxin, a chemical poisen, and the like. Some of the mAbs described, subset tumors of particular types and so are useful for tumor subclassification. The mAbs described are also useful in analyzing the properties and functions of their respective antigens in human cells.
摘要:
This invention provides a monoclonal antibody, produced by the hybridoma cell line designated GXM1, which specifically binds to a human class 1tumor antigen. This invention also provides a human monoclonal antibody, produced by a hybridoma cell line designated HJM1, which specifically binds to each of the ganglioside antigens GD2, GD3, GM3 and GD1b. This invention further provides a human monoclonal antibody, produced by a hybridoma cell line designated FCM1, which specifically binds to the ganglioside antigens GM3 and GD1a. Finally, this invention provides a human monoclonal antibody, produced by a hybridoma cell line designated DSM1, which specifically binds to a human class 2 tumor protein antigen.
摘要:
Three new monoclonal antibodies, MU78, MT334, and MQ49, and the hybridoma cell lines producing these, are disclosed. The antibodies specifically bind to mucin-like antigens with distribution over various carcinomas.