Abstract: Provided are methods of generating chimeric antigen receptors (CAR). In some embodiments, library screening of CAR is performed by generating a vector encoding the CAR from random attachment of vectors from libraries of vectors encoding antigen-binding domains (e.g., scFv regions), hinge regions, and endodomains. In some embodiments, the vectors contain a transposon.

Abstract: Provided herein are vectors comprising a polycistronic expression casstte comprising a polynucleotide that encodes a CD 19 specific chimeric antigen receptor, a polynucleotide that encodes a cytokine, and a polynucleotide that encodes a marker protein, wherein the polynucleotide that encodes the CD 19-specific chimeric antigen receptor and the polynucleotide that encodes the cytokine coding sequence are separated by a polynucleotide sequence that comprises an F2A element, and wherein the polynucleotide sequence that encodes the cytokine and the polynucleotide sequence that encodes the marker protein are separated by a polynucleotide sequence that comprises a T2A element.

Abstract: The present invention concerns methods and compositions for immunotherapy employing a modified T cell comprising a chimeric antigen receptor (CAR). In particular aspects, CAR-expressing T-cells are producing using electroporation in conjunction with a transposon-based integration system to produce a population of CAR-expressing cells that require minimal ex vivo expansion or that can be directly administered to patients for disease (e.g., cancer) treatment.

Abstract: Chimeric antigen receptors (CARs) and CAR-expressing T cells are provided that can specifically target cells that express an elevated level of a target antigen. Likewise, methods for specifically targeting cells that express elevated levels of antigen (e.g., cancer cells) with CAR T-cell therapies are provided.

Abstract: Chimeric antigen receptor (CAR) polypeptides (and immune effector cells expressing the CARs) are provided comprising modified hinge domain sequences. Also provided are engineered antigen presenting cells (APCs) that express transgenes encoding target antigen and human leukocyte antigen (HLA). In further aspect, immune effector cells are provided that have been selected for elevated mitochondrial spare respiratory capacity.

Abstract: The present invention concerns methods and compositions for immunotherapy employing a modified T cell comprising a chimeric antigen receptor (CAR). In particular aspects, CAR-expressing T-cells are producing using electroporation in conjunction with a transposon-based integration system to produce a population of CAR-expressing cells that require minimal ex vivo expansion or that can be directly administered to patients for disease (e.g., cancer) treatment.

Abstract: Provided are methods of generating chimeric antigen receptors (CAR). In some embodiments, library screening of CAR is performed by generating a vector encoding the CAR from random attachment of vectors from libraries of vectors encoding antigen-binding domains (e.g., scFv regions), hinge regions, and endodomains. In some embodiments, the vectors contain a transposon.

Abstract: Chimeric antigen receptors (CARs) and CAR-expressing T cells are provided that can specifically target cells that express an elevated level of a target antigen. Likewise, methods for specifically targeting cells that express elevated levels of antigen (e.g., cancer cells) with CAR T-cell therapies are provided.

Abstract: The present invention concerns methods and compositions for immunotherapy employing a modified T cell comprising a chimeric antigen receptor (CAR). In particular aspects, CAR-expressing T-cells are producing using electroporation in conjunction with a transposon-based integration system to produce a population of CAR-expressing cells that require minimal ex vivo expansion or that can be directly administered to patients for disease (e.g., cancer) treatment.

Abstract: Chimeric antigen receptor (CAR) polypeptides are provided comprising an antigen binding domain; a hinge domain; a transmembrane domain and an intracellular signaling domain, wherein the CAR polypeptide binds to a target antigen and wherein the antigen binding domain comprises HCDR sequences from a first antibody that binds to the target antigen and LCDR sequences from a second antibody that binds to the target antigen. In certain aspects, the target antigen is CD123.

Abstract: Chimeric antigen receptor (CAR) polypeptides (and immune effector cells expressing the CARs) are provided comprising modified hinge domain sequences. Also provided are engineered antigen presenting cells (APCs) that express transgenes encoding target antigen and human leukocyte antigen (HLA). In further aspect, immune effector cells are provided that have been selected for elevated mitochondrial spare respiratory capacity.

Abstract: The present invention concerns methods and compositions for immunotherapy employing a modified T cell comprising a chimeric antigen receptor (CAR). In particular aspects, CAR-expressing T-cells are producing using electroporation in conjunction with a transposon-based integration system to produce a population of CAR-expressing cells that require minimal ex vivo expansion or that can be directly administered to patients for disease (e.g., cancer) treatment.

Abstract: Provided are methods of generating chimeric antigen receptors (CAR). In some embodiments, library screening of CAR is performed by generating a vector encoding the CAR from random attachment of vectors from libraries of vectors encoding antigen-binding domains (e.g., scFv regions), hinge regions, and endodomains. In some embodiments, the vectors contain a transposon.

Abstract: Chimeric antigen receptors (CARs) and CAR-expressing T cells are provided that can specifically target cells that express an elevated level of a target antigen. Likewise, methods for specifically targeting cells that express elevated levels of antigen (e.g., cancer cells) with CAR T-cell therapies are provided.

Abstract: The present invention concerns methods and compositions for immunotherapy employing a modified T cell comprising a chimeric antigen receptor (CAR). In particular aspects, CAR-expressing T-cells are producing using electroporation in conjunction with a transposon-based integration system to produce a population of CAR-expressing cells that require minimal ex vivo expansion or that can be directly administered to patients for disease (e.g., cancer) treatment.