Abstract: Provided herein, inter alia, are methods and compositions for treating diabetes mellitus comprising co-transplantation of an insulin-producing cell and a cell derived from a parathyroid gland (PTG), a CD34+ cell derived from a parathyroid gland, a CD34+ cell derived from a stem cell, or other progenitor cell-derived CD34+ cell.

Abstract: The present disclosure relates generally to regulatory T cells (Tregs) engineered to express a dipeptidyl aminopeptidase-like protein 6 (DPP6)-reactive chimeric antigen receptor (CAR). The engineered Tregs are suitable for use in immunotherapy regimens for autoimmune, inflammatory and degenerative diseases. In particular, the anti-DPP6 CAR expressing Tregs are suitable for treating or preventing autoimmune diseases of the pancreas or central nervous system.

Abstract: The present disclosure relates generally to the field of immuno-therapeutics, and particularly relates to novel chimeric polypeptides, e.g., chimeric antigen receptors (CARs) that include a transmembrane domain from CD28 and a hinge domain. In some cases, the hinge domain is capable of promoting dimerization of the CARs. The disclosure also provides compositions and methods useful for producing such molecules, as well as methods for the detection and treatment of health conditions, such as proliferative diseases (e.g., cancer).

Abstract: The present invention provides antibodies, or antigen-binding portions thereof, which specifically bind to IL-2 and reduce the affinity of IL-2 binding to IL-2R? and IL-2R?. The invention further provides a method of obtaining such antibodies and nucleic acids encoding the same. The invention further relates to compositions and therapeutic methods for use of these antibodies for the treatment and/or prevention of autoimmune diseases, disorders or conditions and for immunosuppression, including, but not limited to, administering a complex comprising the antibody and IL-2.

Abstract: This disclosure relates to chimeric receptors (CRs) and their signaling components for the regulation of an immune response. Also provided are nucleic acids encoding the disclosed CRs, recombinant immune cells expressing the same, and pharmaceutical compositions containing the disclosed nucleic acids and/or recombinant cells.

Abstract: The invention provides methods of isolating CD 127lo/? immunosuppressive regulatory T cells which can be greatly enriched for FoxP3, methods of expanding the isolated cells, pharmaceutical compositions of such cells, and methods of their use in the treatment of autoimmune and other immune system mediated disorders.

Abstract: The present invention provides antibodies, or antigen-binding portions thereof, which specifically bind to IL-2 and reduce the affinity of IL-2 binding to IL-2R? and IL-2R?. The invention further provides a method of obtaining such antibodies and nucleic acids encoding the same. The invention further relates to compositions and therapeutic methods for use of these antibodies for the treatment and/or prevention of autoimmune diseases, disorders or conditions and for immunosuppression, including, but not limited to, administering a complex comprising the antibody and IL-2.

Abstract: Chimeric antigen receptor (CAR)-expressing Tregs specifically target modified protein or proteins present in the extra cellular matrix of an inflammatory lesion of patients to induce a localized and effective immunosuppressive response.

Abstract: The invention provides methods of isolating CD127lo/? immunosuppressive regulatory T cells which can be greatly enriched for FoxP3, methods of expanding the isolated cells, pharmaceutical compositions of such cells, and methods of their use in the treatment of autoimmune and other immune system mediated disorders.

Abstract: Provided herein are compositions and methods for modifying regulatory T cells. The inventors have identified nuclear factors that influence expression of Foxp3, a key transcriptional regulator of Treg cells. Treg cells can be modified by inhibiting and/or overexpressing one or more of these nuclear factors to produce stabilized Treg cells or destabilized Treg cells.

Abstract: The disclosure features methods directed to modifying regulatory T (Treg) cell stability by inhibiting the expression of one or more transcription factors and/or inhibiting one or more genes or gene products regulated by the transcription factors. The disclosure also features compositions comprising the Treg cells having modified stability.

Abstract: The present invention provides antibodies, or antigen-binding portions thereof, which specifically bind to IL-2 and reduce the affinity of IL-2 binding to IL-2R? and IL-2R?. The invention further provides a method of obtaining such antibodies and nucleic acids encoding the same. The invention further relates to compositions and therapeutic methods for use of these antibodies for the treatment and/or prevention of autoimmune diseases, disorders or conditions and for immunosuppression, including, but not limited to, administering a complex comprising the antibody and IL-2.

Abstract: The invention provides LFA3 polypeptide molecules, e.g., variant LFA3 fusion polypeptide molecules. The invention includes uses, and associated methods of using the LFA3 polypeptide molecules.

Abstract: Chimeric antigen receptor (CAR)-expressing T regulatory cells (Tregs) include intracellular co-stimulatory or inhibitory domains based on the biology, functions and activities of Tregs. The co-stimulatory or inhibitory domains modulate the Treg response, thereby, activating or suppressing an effector T cell (Teff) immune response to specific antigens.

Abstract: Chimeric antigen receptor (CAR)-expressing Tregs specifically target an antigen present in the joint of RA patients to induce a localized and effective immunosuppressive response.

Abstract: Provided herein, inter alia, are methods and compositions for treating diabetes mellitus comprising co-transplantation of an insulin-producing cell and a cell derived from a parathyroid gland (PTG), a CD34+ cell derived from a parathyroid gland, a CD34+ cell derived from a stem cell, or other progenitor cell-derived CD34+ cell.

Abstract: The present invention provides antibodies, or antigen-binding portions thereof, which specifically bind to IL-2 and reduce the affinity of IL-2 binding to IL-2R? and IL-2R?. The invention further provides a method of obtaining such antibodies and nucleic acids encoding the same. The invention further relates to compositions and therapeutic methods for use of these antibodies for the treatment and/or prevention of autoimmune diseases, disorders or conditions and for immunosuppression, including, but not limited to, administering a complex comprising the antibody and IL-2.

Abstract: Methods and compositions are provided for highly efficient delivery of Cas9 and Cas9 ribonucleoproteins to cells, including primary hematopoietic cells and primary hematopoietic stem cells.

Abstract: The present invention provides antibodies, or antigen-binding portions thereof, which specifically bind to IL-2 and reduce the affinity of IL-2 binding to IL-2R? and IL-2R?. The invention further provides a method of obtaining such antibodies and nucleic acids encoding the same. The invention further relates to compositions and therapeutic methods for use of these antibodies for the treatment and/or prevention of autoimmune diseases, disorders or conditions and for immunosuppression, including, but not limited to, administering a complex comprising the antibody and IL-2.

Abstract: Provided herein are sphingolipid compounds that are useful for activating natural killer T cells. Also provided are methods for treating or preventing a disease or disorder that is treatable by activating the immune system by stimulating natural killer T cells. The compounds are therefore useful for treating or reducing the likelihood of occurrence of an immune diseases and disorders, such as autoimmune diseases or disorders. The compounds may also be used for treating or reducing the likelihood of occurrence of a microbial infection or for treating or reducing the likelihood of occurrence of a cancer in a subject by administering the sphingolipid compounds described herein.