Abstract: The present disclosure describes systems and methods for in vitro differentiation of human cross-presenting CD141+CLEC9A+ dendritic cells from mobilized peripheral blood CD34+ hematopoietic stem cells. The dendritic cells may further comprise an antigen or nucleic acid encoding an antigen. Methods of using the cells are also provided.

Abstract: Methods of testing tumor samples for mutational burden and/or for expression profiles permit the prediction of responsiveness of an individual to immunotherapy comprising PVSRIPO. Those predicted to respond are treated with PVSRIPO and those predicted not to respond are treated with other agents.

Abstract: Chimeric poliovirus is capable of activating antigen presenting cells. The activation of the antigen presenting cells may be in vitro, ex vivo, or in vivo. The activated antigen presenting cells may be administered alone or with an antigen or vaccine. The activated antigen may be loaded in vitro or ex vivo with antigen to form antigen-loaded, activated, antigen presenting cells. These may be administered therapeutically. Therapeutic administration of antigen presenting cells may be used as an adjuvant to other therapies.

Abstract: Regional, tumor-targeted, cytotoxic therapy, such as D2C7-immunotoxin (D2C7-IT), not only specifically target and destroy tumor cells, but in the process initiate immune events that promote an in situ vaccine effect. The antitumor effects are amplified by immune checkpoint blockade which engenders a long-term systemic immune response that effectively eliminates all tumor cells.

Abstract: Regional, tumor-targeted, cytotoxic therapy, such as D2C7-immunotoxin (D2C7-IT), not only specifically target and destroy tumor cells, but in the process initiate immune events that promote an in situ vaccine effect. The antitumor effects are amplified by immune checkpoint blockade which engenders a long-term systemic immune response that effectively eliminates all tumor cells.

Abstract: Provided is a method of treating a tumor in an individual by neoadjuvant therapy, wherein the individual has not previously undergone a resection of the tumor, the method comprising administering an immunotoxin alone or an immune checkpoint inhibitor and an immunotoxin, such as D2C7-immunotoxin (D2C7-IT), followed by resection of the tumor. The method may further comprise administration of immune checkpoint inhibitor following resection.

Abstract: Provided is a method of treating a tumor in an individual by neoadjuvant therapy, wherein the individual has not previously undergone treatment to effectively reduce tumor burden, the method comprising administering an oncolytic chimeric poliovirus construct, or an oncolytic chimeric poliovirus construct and an immune checkpoint inhibitor, followed by reduction of the tumor. The method may further comprise administration of immune checkpoint inhibitor or oncolytic chimeric poliovirus construct following reduction of tumor. Kits for performing the methods are also provided.

Abstract: Methods of testing tumor samples for mutational burden and/or for expression profiles permit the prediction of responsiveness of an individual to immunotherapy comprising PVSRIPO. Those predicted to respond are treated with PVSRIPO and those predicted not to respond are treated with other agents.

Abstract: Human clinical use of a chimeric poliovirus construct has demonstrated excellent anti-tumor effect. Combination with immune checkpoint inhibitors increases the anti-tumor effect. Tumors of different types are susceptible to the combination treatment, including but not limited to melanoma, glioglastoma, renal cell carcinoma, prostate cancer, breast cancer, lung cancer, medulloblastoma, and colorectal cancer.

Abstract: Human clinical use of a chimeric poliovirus construct has demonstrated excellent anti-tumor effect. Combination with immune checkpoint inhibitors increases the anti-tumor effect. Tumors of different types are susceptible to the combination treatment, including but not limited to melanoma, glioglastoma, renal cell carcinoma, prostate cancer, breast cancer, lung cancer, medulloblastoma, and colorectal cancer.

Abstract: Chimeric poliovirus is capable of activating antigen presenting cells. The activation of the antigen presenting cells may be in vitro, ex vivo, or in vivo. The activated antigen presenting cells may be administered alone or with an antigen or vaccine. The activated antigen may be loaded in vitro or ex vivo with antigen to form antigen-loaded, activated, antigen presenting cells. These may be administered therapeutically. Therapeutic administration of antigen presenting cells may be used as an adjuvant to other therapies.

Abstract: Regional, tumor-targeted, cytotoxic therapy, such as D2C7-immunotoxin (D2C7-IT), not only specifically target and destroy tumor cells, but in the process initiate immune events that promote an in situ vaccine effect. The antitumor effects are amplified by immune checkpoint blockade which engenders a long-term systemic immune response that effectively eliminates all tumor cells.

Abstract: Human clinical use of a chimeric poliovirus construct has demonstrated excellent anti-tumor effect. Combination with immune checkpoint inhibitors increases the anti-tumor effect. Tumors of different types are susceptible to the combination treatment, including but not limited to melanoma, glioglastoma, renal cell carcinoma, prostate cancer, breast cancer, lung cancer, medulloblastoma, and colorectal cancer.

Abstract: A method for eliciting an immune response to an antigen in a subject via (a) loading isolated antigen presenting cells with an antigen ex vivo; and (b) administering the antigen presenting cells to a subject at a pre-treated site.

Abstract: A method for eliciting an immune response to an antigen in a subject via (a) loading isolated antigen presenting cells with an antigen ex vivo; and (b) administering the antigen presenting cells to a subject at a pre-treated site.

Abstract: Disclosed are cells and methods for treating or preventing tumor formation or infections with pathogens in a patient. The cells of the invention are antigen-presenting cells (e.g., dendritic cells or macrophage) that have been loaded with RNA derived from tumors or pathogens. By administering the RNA-loaded antigen-presenting cells to a patient, tumor formation or pathogen infections can be treated or prevented. Alternatively, the RNA-loaded cells can be used as stimulator cells in the ex vivo expansion of CTL. Such CTL can then be used in a variation of conventional adoptive immunotherapy techniques.

Abstract: The present invention relates, in general, to cancer therapy and, in particular, to a method of treating cancer that involves immunization against an endothelial-specific product preferentially expressed during tumor angiogenesis or against a factor that contributes to the angiogenic process.