Disclosed herein is a vaccine comprising an antigen and PD1 antibody and/or PDL1 antibody. Also disclosed herein is a method for enhancing an immune response in a subject. The method may comprise administering the vaccine to the subject in need thereof.

Provided herein are methods for delaying or inhibiting T cell maturation or differentiation in vitro for a T cell therapy, comprising contacting one or more T cells from a subject in need of a T cell therapy with an AKT inhibitor and at least one of exogenous Interleukin-7 (IL-7) and exogenous Interleukin-15 (IL-15), wherein the resulting T cells exhibit delayed maturation or differentiation. In some embodiments, the method further comprises administering the one or more T cells to a subject in need of a T cell therapy.

The invention relates to a composition which induces, in a host, a cytotoxic cell response directed against cells expressing an antigen, in particular tumour cells, and which comprises red blood cells containing said antigen. These red blood cells may be in the form of an immune complex with an immunoglobulin, in particular IgG, which recognizes an epitope at the surface of the red blood cells, and/or be heat-treated or chemically treated so as to promote phagocytosis of said red blood cells by dendritic cells. As a variant, the red blood cells may be xenogenic red blood cells. The invention also relates to a therapeutic especially anti-tumour vaccine containing such a composition.

Vector compositions comprising a myeloproliferative sarcoma virus enhancer, negative control region deleted, dl587rev primer-binding site substituted (MND) promoter operably linked to a chimeric antigen receptor (CAR) are provided.

In certain embodiments, methods and compositions are provided for generating immune responses against tumor neo-antigens or neo-epitopes. In particular embodiments there may be provided methods for constructing and producing recombinant adenovirus-based vector vaccines containing nucleic acid sequences encoding tumor neo-antigens and neo-epitopes that allow for vaccinations in individuals with preexisting immunity to adenovirus. In additional embodiments, methods and compositions are provided for the treatment of cancer using immunotherapy based on recombinant adenovirus-based vectors combined with engineered natural killer cells. In some embodiments, the methods and compositions further comprises a nucleic acid encoding for an immunological fusion partner.

The technology relates generally to the field of immunology and relates in part to methods for activating T cells and other cells resulting in an immune response against a target antigen. The technology also relates to costimulation of therapeutic cells that express chimeric antigen receptors that recognize target antigens using chimeric MyD88- and CD40-derived polypeptides. The technology further relates in part to therapeutic cells that express chimeric antigen receptors, wherein the chimeric antigen receptors have an endodomain that includes MyD88- and CD40-derived polypeptides, and methods for treating patients using the modified therapeutic cells.

The present invention provides an isolated cell composition, which in some embodiments is suitable for adoptive immunotherapy, as well as methods of manufacturing the cell compositions and methods of treatment with the cell compositions. The composition comprises, in a pharmaceutically acceptable carrier, at least about 10.sup.6 CD8+ T cells specific for target peptide antigen(s), which comprises T memory stem (T.sub.SCM) cells. In various embodiments, the composition is from about 1% to about 100% T memory stem cells, providing for a robust and durable adoptive therapy, as well as providing for T cell engineering advances.

Provided herein are methods for delaying or inhibiting T cell maturation or differentiation in vitro for a T cell therapy, comprising contacting one or more T cells from a subject in need of a T cell therapy with an AKT inhibitor and at least one of exogenous Interleukin-7 (IL-7) and exogenous Interleukin-15 (IL-15), wherein the resulting T cells exhibit delayed maturation or differentiation. In some embodiments, the method further comprises administering the one or more T cells to a subject in need of a T cell therapy.

The present invention concerns compositions and methods related to approaches to render ineffective Thl T cells resistant to the inhibitory cytokine milieu present in a cancer microenvironment. In particular embodiments, tumor-specific T cells are modified to employ a chimeric receptor that binds inhibitory/suppressive cytokines and converts their intracellular consequences to a Thl immunostimulaotyr/activating signal. In specific embodiments, the T cells employ a chimeric antigen receptor having exodomains for IL10, IL13 and/or IL4 fused with the signal transducing endodomains for IL2 and/or IL7

The present invention provides an isolated cell composition, which in some embodiments is suitable for adoptive immunotherapy, as well as methods of manufacturing the cell compositions and methods of treatment with the cell compositions. The composition comprises, in a pharmaceutically acceptable carrier, at least about 10.sup.6 CD8+ T cells specific for target peptide antigen(s), which comprises T memory stem (T.sub.SCM) cells. In various embodiments, the composition is from about 1% to about 100% T memory stem cells, providing for a robust and durable adoptive therapy, as well as providing for T cell engineering advances.