The disclosure provides a method of new use of an immunomodulatory drug comprising a water-soluble acidic peptidoglycan from sprouts of the plant Solanum tuberosum (WSPG) for prevention and treatment of metastatic tumor growth, comprising an application of a therapeutically effective dose of a said immunomodulatory drug or a pharmaceutical composition of a said immunomodulatory drug with a pharmaceutically acceptable carrier or excipient, or a pharmaceutically effective amount of mammalian immune cells treated with said immunomodulatory drug WSPG in vitro/ex vivo to a patient in need thereof.

The present invention provides peptides containing the amino acid sequence of SEQ ID NOs: 1, 2, 3, 4, 16, 17, 30, 31, 34, 36, 37, 40, 41, 45, 49, 55, 57 and 61, as well as peptides containing the above-mentioned amino acid sequences in which 1, 2, or several amino acid(s) are substituted, deleted, inserted or added, but still have cytotoxic T cell inducibility. The present invention also provides drugs for treating or preventing tumors, which drugs containing these peptides. The peptides of the present invention can also be used as vaccines.

Dendritic cells containing tumor lysate loaded particles are prepared. The dendritic cells present tumor antigens to elicit the Major Histocompatibility Complex class I pathway and can be used as a vaccine to treat cancer, including ocular melanoma.

A cancer vaccine composition for human leukocyte antigen (HLA)-A*0206-positive persons, comprising a protein product of the tumor suppressor gene WT1 or a partial peptide thereof.

Methods and compositions disclosed herein relate to cancer immunotherapy, in particular preparation and use of antigen-specific T lymphocytes for immune cell therapies. Methods and compositions disclosed herein relate to the production of antigen-presenting cells and their use cell therapy and vaccines and, in particular, the preparation and use of antigen-specific T lymphocytes for cancer immunotherapies.

The present disclosure provides a modified cell of leukemic origin comprising a downregulated CD47 pathway. Methods for using the modified cells in treating cancer alone, or in combination with CD47 blockade are also provided. Also provided are compositions comprising a modified cell of leukemic origin, pharmaceutical compositions and formulations thereof, and methods of producing the modified cells.

Disclosed are means, methods and compositions of matter useful for induction of immunological responses towards tumor endothelial cells. In one embodiment the invention teaches fusion of dendritic cells and cells resembling tumor endothelial cells and administration of such chimeric cells as an immunotherapy for stimulation of tumor endothelial cell destruction. In other embodiments pluripotent stem cells are utilized to generate dendritic cells, wherein said dendritic cells are fused with pluripotent stem cell derived endothelial cells created in a manner to resemble tumor endothelial cells.

In one aspect, the present invention provides, for example, an improved method for identifying an epitope on a protein, comprising the following steps: (A) contacting a major histocompatibility complex (MHC molecule)-expressing cell differentiated from a stem cell or a progenitor cell derived therefrom with a target protein; (B) isolating a complex of a peptide contained in the target protein and the MHC molecule from the MHC molecule-expressing cell; and (C) eluting the peptide from the complex and identifying the peptide.

The present embodiments relate to an FDA-approved injectable multi-dose antigen pulsed dendritic cell (DC) vaccine. In one embodiment, the activated antigen-loaded DC vaccine comprises an initial immunizing dose and multiple “booster” doses. Also provided is a method of blocking both HER-2 and HER-3 as a treatment in causing permanent tumor senescence in HER-2 expressing breast cancers. Also provided is combination anti-estrogen therapy and anti-HER2 dendritic call vaccination for ER.sup.pos/HER2.sup.pos DCIS breast cancer patients.

Disclosed are compositions, methods of use, and pharmaceutical preparations useful for treatment of cancer. In one embodiment dendritic cells (DC) are generated from a patient in need of treatment, matured utilizing a leukocyte lysate, and readministered into the same patient without the use of antigen pulsing. DC from different tissues, different stages of maturation, and different methods of inducing DC maturation are disclosed.