The present disclosure provides for chimeric antigen receptors (CARs) that specifically target a G-protein coupled receptor, G-protein coupled receptor family C group 5 member D (GPRC5D), and immunoresponsive cells comprising such CARs, for the treatment of cancer.

Provided herein are methods of expanding B cells, and in particularly B10 cells capable of producing IL-10, ex vivo. The methods include incubation of harvested B cells in the presence of IL-21. Compositions comprising the ex vivo expanded B cells and methods of using the expanded B cell-containing compositions to treat diseases or conditions are also provided. Methods of assessing B10 cell function in a subject are also provided.

In certain embodiments, this disclosure relates to conjugates comprising a polypeptide of GM-CSF and a polypeptide IL-4. Typically, the GM-CSF and IL-4 are connected by a linker, e.g., polypeptide. In certain embodiments, the disclosure relates to isolated nucleic acids encoding these polypeptide conjugates, vectors comprising nucleic acid encoding polypeptide conjugates, and protein expression systems comprising these vectors such as infectious viral particles and host cells comprising such nucleic acids.

The present invention relates to biofunctionalized nanoparticles and uses thereof in adoptive cell therapy. In particular, the present invention relates to a nanoparticle comprising an amount of at least one antigen and an amount of at least one antibody having specificity for a B cell receptor wherein the antigen and antibody are attached to the surface of the nanoparticle.

The present application relates to plasma cells and plasma cell precursors that express a macromolecule, such as a protein, protein mimetic or a peptide and compositions comprising these plasma cells or plasma cell precursors. The application further relates to methods of using and making the plasma cells and plasma cell precursors that express the macromolecule. Methods of treatment comprising administering the plasma cells or plasma cell precursors are also contemplated.

B cell subsets, generation of B cell subsets and utilization of B cell subsets for treatment of Chronic Obstructive Pulmonary Disease (COPD). In one embodiment B cells possessing a B regulatory phenotype are generated in vivo by administrating of mesenchymal stem cells. In another embodiment B regulatory cells are utilized to treat COPD in an interleukin-35 dependent manner. In another embodiment B regulatory cells possess the marker CD5 and produce interleukin-10.

Embodiments of the present disclosure relate to compositions and methods of enhancing anti-tumor activities of modified cells, the method comprising: administering an effective amount of the modified cells to a subject having a solid tumor; and administering an effective amount of an agent to the subject, the agent comprising rapamycin, wherein the modified cells inhibit growth of the solid tumor in the subject, and wherein the anti-tumor activities in the subject are greater than those in a subject that is administered with an effective amount of modified cells but without the agent.

Described herein are compositions of matter and methods for treating cancer. The compositions comprise altered human telomerase polypeptides containing T cell epitopes that have been altered to increase immunogenicity. The methods comprise administration of the polypeptides or nucleic acids, such as DNA or RNA encoding the polypeptides, to individuals afflicted with, or at risk of, developing cancer.

Provided are engineered B lymphocytes modified to express one or several different types of microRNAs or anti-miRs where in one embodiments the lymphocytes contain multiple copy numbers of nucleic acids encoding the one or several different types of miRs or anti-miRs. Provided are compositions and methods for treating, ameliorating, or preventing a cancer cell, a breast cancer cell or a triple negative breast cancer, or a breast cancer cell that tests negative for estrogen receptors, progesterone receptors, or HER2, comprising or by administering a composition, formulation or pharmaceutical composition comprising a microRNA or anti-miR. Provided are methods for treating an inflammation, a disease, a condition, infection or cancer capable of being treated by modulation or inhibition or expression of an miRNA or anti-miRs by administering to an individual in need thereof a B lymphocyte that secretes a microRNA or anti-miR, or a B lymphocyte supernatant, extracellular vesicle or exosome having a microRNA or anti-miR.

This invention provides novel carbonic anhydrase (CAIX) nucleic acid and peptide sequences, as well as related methods and compositions, including anti-cancer immunogenic agent(s) (e.g. vaccines and chimeric molecules) that elicit an immune response specifically directed against cancer cells expressing a CAIX antigenic marker. The novel CAIX variant and related compositions are useful in a wide variety of treatment modalities including, but not limited to protein vaccination, DNA vaccination, and adoptive immunotherapy.