A cell genetically engineered for activating natural killer (NK) cells. The genetically engineered cell for activating NK cells synergistically induces the proliferation and activation of NK cells in a sample, thereby producing effects that can be usefully utilized in a method of proliferating NK cells, a method of measuring NK cells proliferated by the method, or an activation degree of NK cells, or a method of diagnosing an NK cell activity-related disease. A feeder cell for culturing a natural killer (NK) cell, genetically engineered to express membrane bound interleukin-18 (mbIL-18) and membrane bound interleukin-21 (mbIL-21).

Provided herein are methods and compositions related to polyomavirus epitopes useful in the treatment of cancer or a polyomavirus infection.

Provided herein are methods for ex vivo expansion of a specialized subset of natural killer (NK) cells, and compositions containing such NK cells. Also provided are methods for identifying or detecting a specialized subset of NK cells. Also provided are methods for treating diseases and conditions such as cancer using provided compositions, including in combination with an antibody capable of binding to disease-associated tissues or cells, such as tumor cells or infected cells.

The present invention provides gene edited modified immune cells suitable for adoptive T cell therapy comprising a nucleic acid capable of downregulating CD3δ, CD3ε, CD3γ, B2M, CIITA, TAP1, TAP2, TAPBP, NLRC5, HLA-DM, RFX5, RFXANK, RFXAP, and invariant chain; and further comprising an exogenous nucleic acid encoding a chimeric antigen receptor (CAR), an engineered T cell receptor (TCR), a Killer cell immunoglobulin-like receptor (KIR), dominant negative receptor and/or a switch receptor. Also provided are compositions and methods for generating the modified immune cell, and methods of using the modified immune cells for adoptive therapy and treating a disease or condition.

Provided herein are methods of producing engineered T cell compositions enriched for CD57 negative and/or CD27 positive T cells, such as from a plurality of donors. In some embodiments, the T cells are engineered with a recombinant receptor, such as a chimeric antigen receptor (CAR). Also provided herein are engineered T cell compositions containing T cells enriched for CD57 negative and/or CD27 positive T cells derived from a plurality of different donors, including compositions in which the T cells are engineered with or express a recombinant receptor (e.g. CAR). Also provided are methods of using the engineered T cell compositions in adoptive therapy, including in connection for cancer immunotherapy, such as for allogeneic therapies or for administration to one or more subjects in which the T cells are not derived from the subject(s) to whom the compositions are administered.

Disclosed herein are expanded NK cells and methods of using thereof for treating, preventing, reducing, and/or inhibiting a microbial infection.

The present disclosure provides methods of preparing immune cells, e.g., T cells and/or NK cells, comprising contacting the cells with programmable cell-signaling scaffolds in a medium comprising at least about 5 mM potassium ion. In some aspects, the methods disclosed herein increase the number of less-differentiated cells in the population of cells. In some aspects, the cultured cells are engineered, e.g., to comprise a chimeric antigen receptor (CAR) or an engineered T cell receptor (TCR). In some aspects, the cells are administered to a subject in need thereof.

This disclosure provides methods of making immune effector cells (for example, T cells, NK cells) that comprise (i) a nucleic acid molecule that encodes a controllable chimeric antigen receptor (CCAR) or (ii) a nucleic acid molecule that encodes a CAR and a regulatory molecule, and compositions generated by such methods.

The present invention provides improved and/or shortened methods for expanding TILs and producing therapeutic populations of TILs, including novel methods for expanding TIL populations in a closed system that lead to improved efficacy, improved phenotype, and increased metabolic health of the TILs in a shorter time period, while allowing for reduced microbial contamination as well as decreased costs. Such TILs find use in therapeutic treatment regimens.

The present invention refers to a method to produce a T cell with advantageous properties. The invention also refers to a T cell or an engineered T cell produced by the method and its use in therapy.