89 results about "HER2/neu" patented technology

The present invention provides the means and methods for selecting immunogenic peptides and the immunogenic peptide compositions capable of specifically binding glycoproteins encoded by HLA alleles and inducing T cell activation in T cells restricted by the allele. The peptides are useful to elicit an immune response against a desired antigen. The immunogenic peptide compositions of the present invention comprise immunogenic peptides having an HLA binding motif, where the peptide is from a target antigen. Target antigens of the present invention include prostate specific antigen (PSA), hepatitis B core and surface antigens (HBVc, HBVs) hepatitis C antigens, Epstein-Barr virus antigens, melanoma antigens (e.g., MAGE-1), human immunodeficiency virus (HIV) antigens, human papilloma virus (HPV) antigens, Lassa virus, mycobacterium tuberculosis (MT), p53, CEA, trypanosome surface antigen (TSA) and Her2/neu. An example of an immunogenic peptide of the present invention corresponds to a peptide less than about 15 amino acids in length that comprises an HLA-A2.1 binding motif, where the peptide comprises the p53 sequence SMPPPGTRV.

The present invention describes compositions and methods for inhibiting cell proliferation comprising a prolactin receptor antagonist and an agent that inactivates the HER2/neu signaling pathway, and methods of use thereof.

This invention provides compositions and methods for treating and vaccinating against a Her2/neu antigen-expressing tumor and inducing an immune response against dominant in a human subject.

The invention relates to a method for producing, purifying and appraising protein, in particular to a method for expression of recombinant human her2/neu ICD in Pasteur yeast as well as optimized large scale industrialized fermentation production and purification of the recombinant human her2/neu ICD.

A recombinant polynucleotide encoding a Her2/neu target antigen is provided, as is a recombinant Her2/neu target antigen polypeptide. Also provided are methods of using such a recombinant polynucleotide to express a Her2/neu target antigen in a cell. In addition, methods are provided for using the recombinant polynucleotide or the recombinant polypeptide to stimulate an immune response in a subject against cancer that expresses Her2/neu. Methods of making a target antigen also are provided.

A humanized monoclonal antibody of human endophloeodal growth factor receptor 2 protein is prepared from enternal segment of HER2/neucell through such steps as culturing the B cells of the person sensitive to HER2; fusing the said B cells with human osteoma cells (karpas 707 H); screening the external segment monoclonal anti body against HER2 cell; and amplification of the said monoclonal antibody. It features that antigen epitope is the external segment polypeptide of HER2/neu cell for specifically binding the external segment of HER2/neu cell, and the all gene sequences for syntehsis come from human B lymph cells and human osteoma cells.

The invention discloses an artificial oil body carrier for the targeted therapy of mastocarcinoma as well as a preparation method and an application thereof. With the preparation method, a pJO1-oleZH2 plasmid is converted to enter the host cell of escherichia coli BL21 (DE3), oleZH2 proteins are produced by induction, and oil and the oleZH2 proteins are mixed to prepare an artificial oil body carrier. Invitro and invivo experiments confirm that the artificial oil body carrier disclosed by the invention can be effectively applied to target therapy, and the oil body carried covered with fluorescent substances can reflect HER2/neu positive cancer cells so as to specifically detect the mastocarcinoma cell excessively expressing HER2/neu. The artificial oil body carrier has the advantages of simple preparation process, extra small environmental pollution, good stability in blood cells or serum, small volume and the like, is cheap and efficient, is convenient to operate and is easy to transport. The artificial oil body carrier can be used for covering anti-mastocarcinoma drugs of different types of oil solubility, can effectively kill mastocarcinoma cells after being coated on drugs and can carry out specific detection and target therapy for mastocarcinoma cells.