Chimeric antigen receptor T cell (CARTs) compositions and methods of their use are provided. One embodiment provides a chimeric antigen receptor T cell composition including 8F8 chimeric antigen receptor T cells. Another embodiment provides a chimeric antigen receptor T cell composition including 6G11 chimeric antigen receptor T cells. Still another embodiment provide a chimeric antigen receptor T cell composition including 12D7 chimeric antigen receptor T cells. The disclosed CARTs can be used to treat cancer, for example hepatocellular carcinoma.

Disclosed are means, methods and compositions of matter useful for amplification of adaptive immune responses towards neoplastic tissue. In one embodiment, immunization of a patient is performed by a means comprising of administering either an exogenous vaccine or stimulation of immunogenicity of the tumor so as to cause release of antigens/increased exposure of antigens, thus resulting in an “endogenous” vaccine. Subsequent to vaccination a patient is treated by an immunopheresis procedure, in order to allow for removal of “blocking factors” produced by the tumor or produced by cells programmed by tumors to produce said blocking factors. In one embodiment further immunization is performed subsequent to removal of said blocking factors in order to allow for enhancement of adaptive immune responses.

The present disclosure relates to compositions and methods relating to chimeric antigen receptor (CAR) polypeptides and methods relating thereto. In one embodiment, the present disclosure relates to engineered cells having chimeric antigen receptor polypeptides directed to at least two targets. In another embodiment, the present disclosure relates to engineered cells having chimeric antigen receptor polypeptides and an enhancer moiety.

The present invention provides a medicine comprising a Toll-like receptor agonist, LAG-3 protein, a variant or derivative thereof.

Disclosed herein are cells that are immune cells or precursor cells thereof, which cells recombinantly express a chimeric antigen receptor (CAR), and a dominant negative form of an inhibitor of a cell-mediated immune response of the immune cell, wherein the CAR binds to a cancer antigen. Also disclosed herein are T cells that recognize and are sensitized to a cancer antigen, which T cells recombinantly express a dominant negative form of an inhibitor of a T cell-mediated immune response. Additionally provided are methods of using such cells to treat cancer in a subject in need thereof.

An antitumor pharmaceutical combination includes (i) a compound ABX196 and (ii) at least one chemotherapeutic agent and/or at least one immunotherapeutic agent, for use in the treatment of cancer.

The present invention provides a medicine comprising a Toll-like receptor agonist, LAG-3 protein, a variant or derivative thereof.

Disclosed herein are CAR-T cells with enhanced tumor infiltration. As disclosed herein, infiltrating lymphocytes (T and NK) within tumor tissue are absent of CX3CR1, a key chemokine receptor specific for lymphocytes. Therefore, disclosed herein are CAR-T cells that co-express CX3CR1 to enhance the infiltration of CAR-T cells into the tumor tissue. Also disclosed herein are CAR-T cells that co-express IL-15 in order to activate infiltration of NK cell. In some embodiments, the disclosed CAR-T cells express both CX3CR1 and IL-15 in combination with the CAR polypeptide. In some embodiments, the disclosed CAR-T cells further express EGFR in combination with the CAR polypeptide.

The present invention concerns methods and compositions for immunotherapy employing a modified T cell comprising a chimeric antigen receptor (CAR). In particular aspects, CAR-expressing T-cells are producing using electroporation in conjunction with a transposon-based integration system to produce a population of CAR-expressing cells that require minimal ex vivo expansion or that can be directly administered to patients for disease (e.g., cancer) treatment.

The present application relates generally to genetically modified arenaviruses that are suitable vaccines against neoplastic diseases, such as cancer. The arenaviruses described herein may be suitable for vaccines and/or treatment of neoplastic diseases and/or for the use in immunotherapies. In particular, provided herein are methods and compositions for treating a neoplastic disease by administering a genetically modified arenavirus in combination with an immune checkpoint inhibitor, wherein the arenavirus has been engineered to include a nucleotide sequence encoding a tumor antigen, tumor associated antigen or antigenic fragment thereof.