Provided are cells containing exogenous antigen and uses thereof.

Disclosed are means, methods and compositions of matter for treatment Parkinson's Disease through concurrent immune modulation and regenerative means. In one embodiment Parkinson's Disease is treated by augmentation of T regulatory cell numbers and/or activity while concurrently providing regenerative cells such as mesenchymal stem cells, and/or dopamine secreting cells. In one embodiment administration of immunoglobulins such as IVIG together with low dose interleukin-2 and/or low dose naltrexone is disclosed as a preparatory means prior to administration of therapeutic cells such as stem cells. Other therapeutic means utilized in an adjuvant manner are also provided for hormonal rebalancing, transcranial magnetic stimulation, and deep brain stimulation.

Provided herein are carrier cells and virus combinations and methods for treatment of cancers. Also provided are modified carrier cells for such treatment, and methods of selecting carrier cells that are matched to subjects for such treatment.

As described below, the present invention features genetically modified immune cells having enhanced anti-neoplasia activity, resistance to immune suppression, and decreased risk of eliciting a graft versus host reaction, or a combination thereof. The present invention also features methods for producing and using these modified immune effector cells.

The present invention provides preparations of MSCs with important therapeutic potential. The MSC cells are non-primary cells with an antigen profile comprising less than about 1.25% CD45+ cells (or less than about 0.75% CD45+), at least about 95% CD105+ cells, and at least about 95% CD166+ cells. Optionally, MSCs of the present preparations are isogenic and can be expanded ex vivo and cryopreserved and thawed, yet maintain a stable and uniform phenotype. Methods are taught here of expanding these MSCs to produce a clinical scale therapeutic preparations and medical uses thereof.

Provided are cells containing exogenous antigen and uses thereof.

The present disclosure relates to expansion and activation of T cells. In an aspect, the present disclosure relates to expansion and activation of γδ T cells that may be used for transgene expression. In another aspect, the disclosure relates to expansion and activation of γδ T cells while depleting α- and/or β-TCR positive cells. T cell populations comprising expanded γδ T cell and depleted or reduced α- and/or β-TCR positive cells are also provided for by the instant disclosure. The disclosure further provides for methods of using the disclosed T cell populations.

The present disclosure provides methods for treating hematologic malignancies in a recipient subject in need thereof comprising administering to the recipient subject an effective amount of donor myeloid progenitor cells, and an effective amount of donor umbilical cord blood (UCB) cells, wherein the UCB cells and the myeloid progenitor cells are HLA matched. In some embodiments, the donor for the myeloid progenitor cells is not related to the recipient subject and/or the donor for the UCB cells. Also disclosed herein are methods for promoting early myeloid recovery in a recipient subject following UCB transplantation.

Compositions disclosed herein, and methods of use thereof included those for inhibiting or reducing the incidence of cytokine release syndrome or cytokine storm in a subject undergoing CAR T-cell therapy, wherein the subjects are administered compositions including apoptotic cells or apoptotic cell supernatants. In certain instances compositions and methods of use thereof disclosed herein do not reduce the efficacy of the CAR T-cell cancer therapy. Disclosed herein are also compositions and methods of use thereof for decreasing or inhibiting cytokine production in a subject experiencing cytokine release syndrome or cytokine storm including administration of a composition including apoptotic cells or an apoptotic cell supernatant.

The disclosure provides methods and compositions for affecting the development of antigen presenting cell (APC, e.g., a macrophage or dendritic cell). The methods include maturing an APC, promoting anti-inflammatory phenotype, promoting development of a T regulatory cell (Treg) from a naive T cell. The methods generally include exposing an APC to a tryptophan derived microbiota metabolite (TDMM), such as an anti-inflammatory or pro-mucosal TDMM, and permitting the APC to mature. In some embodiments, the conditioned APC is exposed to a naive T cell to further promote development of a T regulatory cell (Treg). In some embodiments, the TDMM is selected from the group consisting of indole, indole-3-acetate, 5-hydroxyindole, and indole-3-pyruvate.