Compositions, methods of making, and methods of using, xenoantigen-displaying anti-cancer vaccines are described.

The present invention provides a therapeutic agent comprising an antibody-recognition epitope (ARE) covalently bound to a tumor cell, wherein the ARE is bound to an antibody that is specific for the ARE, to form a tumor cell:ARE:antibody complex, and kits and methods of using these tumor cell:ARE:antibody complexes.

Described herein are synthetic glycan conjugates, immunogenic compositions thereof, vaccines thereof, and kits thereof. The present invention further provides methods of using the synthetic glycan conjugates, immunogenic compositions, or vaccines thereof to treat and/or prevent and/or diagnose proliferative diseases such as cancer. The provided glycan conjugate comprises a carrier and a glycan moiety of Formula (I-i) or Formula (I-ii): (structurally represented). ##STR00001##

Disclosed herein are immunogenic glycopeptide compounds for inducing immune responses to prevent and/or treat cancer. Other aspects of the present disclosure are pharmaceutical compositions comprising the immunogenic glycopeptide compounds, and methods using the compounds for preventing and/or treating a cancer in a subject.

This document provides methods and materials for expanding antigen-specific T cells (e.g., antigen-specific CD4+ T cells and/or antigen-specific CD8+ T cells) in culture. For example, methods and materials for performing a polyclonal stimulation step for a particular duration (e.g., from about 1 hour to about 48 hours) to increase the expansion of T cells having a desired antigen specificity are provided.

The present invention relates to modified cancer cell lines, wherein the ST3Gal1 glycosyltransferase expression is reduced or inhibited. The use of the modified cancer cell lines with suppressed ST3Gal1 glycosyltransferase to screen a potential cancer therapeutic is provided. The suppression of ST3Gal1 glycosyltransferase expression, with or without an anti-cancer agent is also provided to inhibit the growth of cancer cells in a subject.

Substantially stable vaccine compositions are provided, as are methods for their use and manufacture.

Glycopeptide conjugates, and methods of making and using such conjugates are disclosed. Certain glycopeptide conjugates comprise tumor associated carbohydrate antigens and peptide epitopes. Certain glycopeptide conjugates comprise cyclic peptide scaffolds that display carbohydrate antigens in a clustered fashion. The immunogenicity of select glycopeptide conjugates is demonstrated.

Compositions, methods of making, and methods of using, xenoantigen-displaying anti-cancer vaccines are described.

This invention provides a polyvalent vaccine comprising at least two conjugated antigens selected from a group containing glycolipid antigen, polysaccharide antigen, mucin antigen, glycosylated mucin antigen and an appropriate adjuvant. This invention also provides a multivalent vaccine comprising at least two of the following: glycosylated MUC-1-32mer, Globo H, GM2, Le.sup.y, Tn(c), sTN(c), and TF(c). This invention provides the vaccine above, wherein the adjuvant is saponin-based adjuvant. This invention provides a method for inducing immune response in a subject comprising administering an effective amount of the vaccine above to the subject. Finally, this invention provides a method for treating cancer in a subject comprising administering an appropriate amount of the vaccine above to the subject.