123results about "Mucins" patented technology

The present invention provides a method for inducing a cancer specific immune response against MUC1 using an immunogenic glycopeptide. Other aspects of the invention are a pharmaceutical composition comprising the immunogenic glycopeptide and a cancer vaccine comprising the immunogenic glycopeptide. Another aspect is an antibody generated using the immunogenic glycopeptide and the use of said antibody in therapy and diagnosis.

The present invention relates to a composition comprising at least one mRNA encoding a combination of antigens capable of eliciting an (adaptive) immune response in a mammal, wherein the antigens are selected from the group consisting of 5T4 (Trophoblast glycoprotein, TPBG), Survivin (Baculoviral TAP repeat-containing protein 5; BIRC5), NY-ESO-1 (New York esophageal squamous cell carcinoma 1, CTAG1B), MAGE-C1 (Melanoma antigen family C1), MAGE-C2 (Melanoma antigen family C2), and MUC1 (Mucin 1). The invention furthermore relates to a vaccine comprising at least one mRNA encoding such a combination of antigens, and to the use of said composition (for the preparation of a vaccine) and / or of the vaccine for eliciting an (adaptive) immune response for the treatment of lung cancer, preferably of non-small cell lung cancer (NSCLC), and diseases or disorders related thereto. Finally, the invention relates to kits, particularly to kits of parts, containing the composition and / or the vaccine.

The invention relates to methods of inhibiting proliferation or growth of tumor cells and / or inducing cell death in cancer cells. This invention relates to the use of antibodies, hybridomas and pharmaceutical compositions containing same, for inhibiting growth or proliferation and inducing death in epithelial, colon, lung, breast and ovarian tumor cells or other cells which express MUC1 proteins.

The present invention relates to cancer vaccines composed of the signal peptide domain of tumor associated antigens or proteins. The peptide vaccines of the invention are characterized by having multiple MHC class I and class II epitopes which are highly abundant in the population. Therefore, these vaccines are likely to induce a strong, comprehensive immune response against the target proteins in the majority of the vaccinated population, and thereby induce an immune reaction against tumors expressing such target proteins. Specifically, the invention relates to peptide vaccines composed of the signal peptide domain of Mucin (MUC1), BAGE-1 or ARMET, and their use for the treatment of cancers which express Mucin (MUC1), BAGE-1 or ARMET.

The present invention relates to an antigenic fusionprotein, which carries multiple Galα1,3Gal epitopes. The fusion protein according to the invention may also be comprised of a heavily glycosylated mucin part, which mediates binding to selectins, such as PSGL-1, and a part, which exhibits immunoglobulin properties, such as the Fc part of IgG. The fusionprotein according to the invention is preferably used as an absorber to prevent a hyperacute rejection of a xenotransplant, such as a pig tissue or organ transplanted into a human patient. In addition, the invention relates to a method for the prevention of hyperacute rejection reaction in a patient who is to receive a xenotransplant.

Recombinant pox viruses capable of expressing an immunogenic fragment of the MUC1 tumor-associated antigen are disclosed. The recombinant viruses can be used as vaccines to prevent the establishment of or treat tumors or pre-tumorous cells expressing the MUC1 tumor-associated antigen. The vaccines can be provided as an admixture comprising: (1) a recombinant pox virus encoding the immunogenic fragment of the MUC1 tumor-associated antigen, and (2) a recombinant pox virus encoding a T-cell co-stimulatory factor. The vaccine admixture can be used, e.g., to prevent establishment of tumors or pre-tumorous cells expressing the MUC1 tumor-associated antigen. The MUC1 specific cytotoxic T-cells can be isolated and expanded and used in a method for treating a host having a tumor expressing MCU1 positive tumor cells.

A glycolipopeptide comprising at least one disease-associated epitope, and characterized by at least one lipidated interior amino acid or by the presence of a MUC1 epitope, may be used in a vaccine, preferably in conjunction with a liposome.

Compounds are disclosed comprising molecular adjuvants having an antigen presenting cell-targeting ligand linked to a nicotine hapten. Methods are disclosed for employing the compounds as a nicotine vaccine for treatment or prevention of nicotine addiction.

Chemoselective ligation of hydrophobic reactants in a lipid phase.

Provided are MUC 18 targeting peptides which may be used, e.g., to therapeutically target B-I lymphocytes to reduce the influence of these cells on the metastatic potential of melanoma cells and / or to target cancerous cells, including certain melanoma and leukemia cells. MUC 18 targeting peptides may be comprised in fusion constructs, imaging constructs, and / or therapeutic constructs such as fusion constructs which may be used for diagnosing or treating a cancer.

Novel MUC-1 epitopes outside the VNTR region are identified. In addition, the first agonist epitope of MUC-1 is described. The employment of agonist epitopes in peptide, protein and vector-based vaccine may well aid in the development of effective vaccines for a range of human cancers.

A glycolipopeptide comprising a carbohydrate component, a lipid component, and a MUC1 peptide component that induces both a humoral and a cellular immune response for use as a therapeutic or prophylactic vaccine.

Cell lines having genetically modified glycosylation pathways that allow them to carry out a sequence of enzymatic reactions, which mimic the processing of glycoproteins in humans, have been developed. Recombinant proteins expressed in these engineered hosts yield glycoproteins more similar, if not substantially identical, to their human counterparts. The lower eukaryotes, which ordinarily produce high-mannose containing N-glycans, including unicellular and multicellular fungi are modified to produce O-glycans or other structures along human glycosylation pathways. This is achieved using a combination of engineering and / or selection of strains which: do not express certain enzymes which create the undesirable complex structures characteristic of the fungal glycoproteins, which express exogenous enzymes selected either to have optimal activity under the conditions present in the fungi where activity is desired, or which are targeted to an organelle where optimal activity is achieved, and combinations thereof wherein the genetically engineered eukaryote expresses multiple exogenous enzymes required to produce “human-like” glycoproteins.

The present invention relates to tumor associated antigen (TAA) peptides and to use of same, of polynucleotides encoding same and of cells presenting same as anti-tumor vaccines. More particularly, the present invention relates to tumor associated antigen peptides derived from Uroplakin Ia, Ib, II and III, Prostate specific antigen (PSA), Prostate acid phosphatase (PAP) and Prostate specific membrane antigen (PSMA), BA-46 (Lactadherin), Mucin (MUC-1), and Teratocarcinoma-derived growth factor (CRIPTO-1) and the use of same as anti-tumor vaccines to prevent or cure bladder, prostate, breast or other cancers, carcinomas in particular. Most particularly, the present invention relates to tumor associated antigen peptides which are presentable to the immune system by HLA-A2 molecules.

The invention provides a human mucin-1 tumor antigenic polypeptide with an amino acid sequence shown in SEQ ID NO: 1 or variants thereof, wherein the polypeptide can be combined with an HLA (Human Leukocyte Antigen) I and can be recognized by a cell CD8<+>T. The invention further provides nucleic acids coding the polypeptide. The invention further provides an antigen presenting cell capable of presenting the polypeptide on the surface of the cell and an immune effector cell capable of recognizing the polypeptide or antigen presenting cell. The invention further provides application of the polypeptide or variants thereof, the nucleic acids, the antigen presenting cell or the immune effector cell in the preparation of vaccines or pharmaceutical compositions for treating or preventing cancer. Tumor vaccines provided by the invention have a good treatment effect on relatively large crowds and are particularly applicable to the Asian, e.g. Chinese.

A therapeutic formulation containing mucin glycans derived from one or a number of nutritionally appropriate sources is described.

The invention provides a human cytotoxic T lymphocyte (CTL) agonist epitope from the C-terminal subunit of mucin 1 (MUC1-C), which can be used as a peptide, polypeptide (protein), and / or in vaccine or other composition for the prevention or therapy of cancer. The invention further provides a nucleic acid encoding the peptide, protein, or polypeptide, a vector comprising the nucleic acid, a cell comprising the peptide, polypeptide, nucleic acid, or vector, and compositions thereof.

Novel MUC-1 epitopes outside the VNTR region are identified. In addition, the first agonist epitope of MUC-1 is described. The employment of agonist epitopes in peptide, protein and vector-based vaccine may well aid in the development of effective vaccines for a range of human cancers.

Disclosed are yeast-based immunotherapeutic compositions comprising mucin-1 (MUC1), as well as methods for the prevention and / or treatment of cancers characterized by the expression or overexpression of mucin-1 (MUC1).

The present invention provides a method for inducing a cancer specific immune response against MUC1 using an immunogenic glycopeptide. Other aspects of the invention are a pharmaceutical composition comprising the immunogenic glycopeptide and a cancer vaccine comprising the immunogenic glycopeptide. Another aspect is an antibody generated using the immunogenic glycopeptide and the use of said antibody in therapy and diagnosis.

The invention provides for peptides from the MUC1 cytoplasmic domain and methods of use therefor. These peptides can inhibit MUC1 oligomerization, inhibit the interaction of MUC1 with NF-κB or a STAT, and block inflammatory response mediated by NF-κB or STAT signaling.

Interaction between MUC1 and β-catenin can be interrupted using polypeptides or antibodies that specifically bind to the binding site on MUC1. Interruption provides the beneficial effect of inhibiting, reducing, and / or retarding invasiveness and metastasis. Fusion polypeptides and antibodies are provided to achieve a therapeutic effect.

Provided are expression vectors for generating an immune response to a mucin. The vectors comprise a transcription unit encoding a secretable polypeptide, the polypeptide comprising a secretory signal, a mucin antigen and CD40 ligand. Also provided are methods of generating an immune response against cells expressing a mucin by administering an effective amount of the vector. Further provided are methods of generating an immune response against cancer cells expressing a mucin in an individual by administering an effective amount of the vector. Still further provided are methods of overcoming anergy to a mucin self antigen by administering an effective amount of the vector.

The present invention relates to mucin glycoconjugates, and to a process of producing mucin glycoconjugates. It relates to the biological, pharmaceutical and medical applications thereof. The invention notably provides mucin glycoconjugates which do not require a protein carrier, such as KHL, to induce an immune response (anti-Tn IgG).

A composition which comprises a chimeric polypeptide is provided. The chimeric polypeptide having a flagellin amino acid sequence and a mucin 1 amino acid sequence which includes at least a 7 amino acid sequence of the mucin 1 tandem repeat which can be used to elicit an immune response against MUC1—expressing cancerous cells. Also provided is a method of treating cancer such as a cancer of a glandular epithelium in which MUC1 is overexpressed using the composition of the present invention.

The invention discloses a preparation method of porcine pepsin and gastric mucin, and the preparation method is designed for achieving the purpose of overcoming the defects that by using traditional pepsin preparation methods, pepsin is easily degenerated, organic solvents hurts the bodies of operators, and the cost is high, and the like. The method comprises the following steps: carrying out crude extraction on the mucosa of a basilar part of a porcine stomach by using a hydrochloric acid; then, by using the properties that pepsin is high in solubility and stable in enzyme activity in a weakly acidic solution, and gastric mucin is precipitated after meeting a weak acid, extracting and separating porcine pepsin and gastric mucin by using an acidic aqueous solution replacing acetone; and carrying out centrifugation, filtration, ultrafiltration, drying, and the like on the obtained product, so that porcine pepsin and gastric mucin are obtained. In case that the method is adopted for preparing porcine pepsin and gastric mucin, the activity of pepsin is protected, and meanwhile, because no organic solvent is used, the safety factor of operating is improved, and no harm is caused to the bodies of workers; and the cost is reduced, and the production capacity is increased, so that the method has broad market prospect.

The invention relates to a peptide for triggering an immune response to tumor cells. Said peptide has an optionally modified fragment of the protein that is encoded by the gene MUC-1. Said protein triggers an HLA-A2-restricted immune response.

This invention provides D-isomers of MUC7-12-mer peptide of human saliva MUC7. The isomers have antimicrobial activity comparable to that of the L-isomers and are resistant to proteolysis. These peptides can be used as antifungal and antimicrobial agents.

Provided are novel MUC1 peptides for use in anti-tumor vaccination and methods of producing those peptides. Furthermore, methods of producing a population of autologous antigen presenting cells (APCs) and of producing genetically engineered APCs, which are capable of inducing effective immune responses against MUC1 are described. The described peptides are particularly useful for the treatment of breast cancer or other MUC1-positive carcinomas including colorectal, pancreatic and gastric carcinomas.

Provided is a novel mucin-type glycoprotein and a method for producing the same. Specifically, a mucin-type glycoprotein having a repeat structure including 3 to 2000 repeating units each having an amino acid sequence represented by the formula I: Val-Xaa-Glu-Thr-Thr-Ala-Ala-Pro [wherein Xaa represents Val or Ile] (SEQ ID NO: 1), wherein one or more amino acid residues in the structure are bound to a sugar chain of one or more monosaccharides. Also provided is a composition containing the novel mucin-type glycoprotein. Further provided is a molecular weight marker containing the novel mucin-type glycoprotein.