The present disclosure describes systems and methods for immunotherapies Immune cells can be engineered to exhibit enhanced half-life as compared to control cell (e.g., a non-engineered immune cell). Immune cells can be engineered to exhibit enhanced proliferation as compared to a control cell. Immune cells can be engineered to effectively and specifically target diseased cells (e.g., cancer cells) that a control cell otherwise is insufficient or unable to target. The engineered Immune cells disclosed herein can be engineered ex vivo, in vitro, and in some cases, in vivo. The engineered Immune cells that are prepared ex vivo or in vitro can be administered to a subject in need thereof to treat a disease (e.g., myeloma or solid tumors). The engineered Immune cells can be autologous to the subject. Alternatively, the engineered immune cells can be allogeneic to the subject.

Antibody derivatives are provided as binding partners. The binding partners bind to a one or a combination of antigens that include antigens present CD24, CD105 (endoglin), CD79 Beta (CD79b), and an antigen present in a CD3 T cell co-receptor. The antibody derivatives include single chain variable fragments (scFvs), Bi-specific T-cell engagers (BiTEs). Also provided are modified cells that express the binding partners, modified cells that secrete the binding partners, expression vectors that encode the binding partners, and methods of using the binding partners for treatment of a variety of cancers, autoimmune diseases, and modification of immune responses mounted to transplanted organs.

The present invention encompasses genetically-modified immune cells (and populations thereof) expressing a microRNA-adapted shRNA (shRNAmiR) that reduces the expression of a target endogenous protein. Methods for reducing the expression of an endogenous protein in an immune cell are also provided wherein the method comprises introducing a shRNAmiR that targets the endogenous protein. Using shRNAmiRs for knocking down the expression of a target protein allows for stable knockdown of expression of endogenous proteins in immune cells.

Compositions comprising and methods for the treatment of cancer using a NeoTCR based cell therapy with a modified TGF?RII expression.

The present invention relates to cancer immunotherapy. In particular, provided herein are compositions and methods for improving the efficacy of cell therapies cancer and other diseases.

The present disclosure provides improved compositions for adoptive T cell therapies for treating, preventing, or ameliorating at least one symptom of a cancer, infectious disease, autoimmune disease, inflammatory disease, and immunodeficiency, or condition associated therewith.

The present invention relates to TCR molecules which recognise neopeptides produced as a result of the cancer-associated ?1A frameshift mutation in human TGF?RII. The TCR molecules are capable of binding a peptide of SEQ ID NO: 1 when said peptide is presented by a Class I MHC, and comprise an ?-chain domain and a ?-chain domain, each chain domain comprising three CDR sequences, wherein a) CDRs 1, 2 and 3 of the ?-chain domain have the sequences of SEQ ID NOs: 2, 3 and 4 respectively; and b) CDRs 1, 2 and 3 of the ?-chain domain have the sequences of SEQ ID NOs: 5, 6 and 7 respectively, and wherein one or more of said CDR sequences may optionally be modified by substitution, addition or deletion of 1 or 2 amino acids. Nucleic acid molecules encoding such TCRs are provided, as are soluble TCR molecules with these CDR sequences. The nucleic acid molecules of the invention can be used to modify immune effector cells to express a TCR as defined herein, and such modified immune effector cells are useful in therapy for cancer, as are soluble TCRs as defined above.

Methods of using polypeptides to modulate transforming growth factor-? (TGF?) signaling (e.g., TGF? receptors, antibodies or antigen-binding fragments thereof that specifically bind TGF? or a TGF? receptor) are provided. Compositions comprising the antibodies or fragments thereof and methods of using the same for treatment of diseases involving TGF? activity are provided. Nucleic acids, recombinant expression vectors, host cells, antigen binding fragments, and pharmaceutical compositions comprising these antigen binding agents and fragments thereof are also disclosed. The invention also provides therapeutic methods for utilizing the TGF? signaling modulators are provided herein.

Methods of using polypeptides to modulate transforming growth factor-? (TGF?) signaling (e.g., TGF? receptors, antibodies or antigen-binding fragments thereof that specifically bind TGF? or a TGF? receptor) are provided. Compositions comprising the antibodies or fragments thereof and methods of using the same for treatment of diseases involving TGF? activity are provided. Nucleic acids, recombinant expression vectors, host cells, antigen binding fragments, and pharmaceutical compositions comprising these antigen binding agents and fragments thereof are also disclosed. The invention also provides therapeutic methods for utilizing the TGF? signaling modulators are provided herein.

The present disclosure provides modified immune cells (e.g., modified T cells) comprising a chimeric antigen receptor (CAR) having affinity for a prostate-specific membrane antigen (PSMA) (e.g., human PSMA). The present disclosure provides modified immune cells (e.g., modified T cells) comprising a CAR having affinity for PSMA and a dominant negative receptor and/or a switch receptor. The present disclosure provides modified immune cells (e.g., modified T cells) comprising a CAR having affinity for PSMA and a dominant negative receptor and/or a switch receptor, wherein the modified cell is capable of expressing and secreting a bispecific antibody.