Abstract: The present disclosure provides ex vivo methods which employ modified cells of leukemic origin to enhance the efficacy of adoptive cell therapy with natural killer (NK) cells.

Abstract: Composition and methods for ex vivo expansion of natural killer (NK) cells, and methods for cell-based cancer immunotherapy are disclosed. Leukemic cell-derived dendritic cells and anti-PD-L1 antibodies, and certain embodiments with addition of PBMCs are used for in vivo administration for cancer treatment. Leukemic cell-derived dendritic cells and anti-PD-L1 antibodies are also used for ex vivo expansion of NK cells.

Abstract: 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.

Abstract: Provided herein are methods for treating a tumor or generating an immune response against a tumor in a subject in need, including one or more intratumoral administration steps each comprising administering to the subject at a tumor site, an effective amount of a first composition, and one or more vaccination steps each comprising administering to the subject at a site distal to the tumor site, an effective amount of a second composition. The first and second composition may each comprise an allogeneic leukemia-derived cell that is useful in eliciting an immune response against the tumor.

Abstract: The present disclosure provides methods of using a tumor-independent antigen in immunotherapies. The present disclosure provides methods of using a tumor-independent antigen in adoptive cell therapy.

Abstract: The present invention relates to a combination product for use in eliciting an immune response against a tumor in a subject, said product comprising: —an immunogenic composition comprising a non-human antigenic polypeptide as an immunogen, or comprising a nucleic acid encoding said immunogen, and optionally one or more pharmaceutically-acceptable carriers, adjuvants, excipients and/or diluents; and —said non-human antigenic polypeptide, or a nucleic acid encoding said polypeptide; wherein said polypeptide or said nucleic acid is prepared for intratumoral delivery. The invention also provides fusion proteins and protein-protein conjugates that can be used in the medical methods described herein.

Abstract: The present disclosure provides methods for treating a progressive ovarian cancer using an allogeneic leukemia-derived cell. Also provided are immunogenic compositions comprising an allogeneic leukemia-derived cell, and pharmaceutical compositions and formulations thereof.

Abstract: A method for treating a tumor or generating an immune response against a tumor in a subject in need including a vaccination step comprising administration of a first composition, and a tumor-marking step comprising administration of a second composition, is provided. The first and second composition each comprises an antigenic polypeptide (e.g., a non-tumor antigen) or a nucleic acid encoding an antigenic polypeptide. Also provided are antigenic polypeptides and compositions for use in methods described herein.

Abstract: The present disclosure provides ex vivo methods which employ modified cells of leukemic origin to enhance the efficacy of adoptive cell therapy.

Abstract: The present disclosure provides in vivo methods which employ modified cells of leukemic origin to enhance the efficacy of adoptive cell therapy.

Abstract: The present invention relates to a combination product for use in eliciting an immune response against a tumor in a subject, said product comprising: —an immunogenic composition comprising a non-human antigenic polypeptide as an immunogen, or comprising a nucleic acid encoding said immunogen, and optionally one or more pharmaceutically-acceptable carriers, adjuvants, excipients and/or diluents; and—said non-human antigenic polypeptide, or a nucleic acid encoding said polypeptide; wherein said polypeptide or said nucleic acid is prepared for intratumoral delivery. The invention also provides fusion proteins and protein-protein conjugates that can be used in the medical methods described herein.

Abstract: A method for treating a tumor or generating an immune response against a tumor in a subject in need including a vaccination step comprising administration of a first composition, and a tumor-marking step comprising administration of a second composition, is provided. The first and second composition each comprises an antigenic polypeptide (e.g., a non-tumor antigen) or a nucleic acid encoding an antigenic polypeptide. Also provided are antigenic polypeptides and compositions for use in methods described herein.

Abstract: The present invention relates to a combination product for use in eliciting an immune response against a tumor in a subject, said product comprising: —an immunogenic composition comprising a non-human antigenic polypeptide as an immunogen, or comprising a nucleic acid encoding said immunogen, and optionally one or more pharmaceutically-acceptable carriers, adjuvants, excipients and/or diluents; and —said non-human antigenic polypeptide, or a nucleic acid encoding said polypeptide; wherein said polypeptide or said nucleic acid is prepared for intratumoral delivery. The invention also provides fusion proteins and protein-protein conjugates that can be used in the medical methods described herein.

Abstract: A method for treating a tumor or generating an immune response against a tumor in a subject in need including a vaccination step comprising administration of a first composition, and a tumor-marking step comprising administration of a second composition, is provided. The first and second composition each comprises an antigenic polypeptide (e.g., a non-tumor antigen) or a nucleic acid encoding an antigenic polypeptide. Also provided are antigenic polypeptides and compositions for use in methods described herein.