Methods and compositions for treating cancer are disclosed. The compositions comprise immune cells pretreated with ponatinib, or immune cells co-administered with ponatinib, where ponatinib promotes survival and anti-cancer cytotoxicity of the immune cells.

Disclosed are an engineered immune killer cell, and a preparation method therefor and the use thereof. The engineered immune killer cell is prepared by inducing reprogrammed human T cell, retains the marker and function of the human T cell from which the engineered immune killer cell is derived, has the marker and function of an NK cell, and transfects and expresses, in an obtained immune killer lymphocyte, a CAR molecule which recognizes tumor and virus-associated antigens or a TCR molecule which specifically recognizes a tumor.

Methods for preparing T cells or NK cells expressing a chimeric antigen receptor (CAR) is described. The methods entail: isolating a population of T cells, generating induced pluripotent stem cells (iPSCs) from the T cells, introducing a nucleic acid molecule encoding a CAR into the iPSCs to create CAR iPSCs; and differentiating the CAR iPSCs into CAR T cells or CAR NK cells.

Provided is a method for preparing genetically-modified T cells expressing chimeric antigen receptor, comprising: (i) a step of preparing non-proliferative cells holding a viral peptide antigen, which are obtained by stimulating a group of cells comprising T cells using an anti-CD3 antibody and an anti-CD28 antibody followed by culturing in the presence of the viral peptide antigen and a treatment for causing the cells to lose their proliferation capability; (ii) a step of obtaining genetically-modified T cells into which a target antigen-specific chimeric antigen receptor gene has been introduced using a transposon method; (iii) a step of mixing the non-proliferative cells prepared by step (i) with the genetically-modified T cells obtained by step (ii), and co-culturing the mixed cells; and (iv) a step of collecting the cells after culture.

This invention pertains to a novel population of lymphocytes, methods for producing these, and their use in the treatment of diseases.

A method of expanding natural killer cells, comprising: providing a population of internally gelated cells, each of which includes a gelated interior and a fluid cell membrane that contains one or more membrane-bound proteins each or collectively are capable of stimulating expansion of natural killer (NK) cells; and culturing a population of cells containing NK cells, which are capable of responding to the one or more membrane-bound proteins, with the population of internally gelated cells under conditions that allow expansion of NK cells.

This invention relates to methods and compositions comprising antibodies or fragments thereof comprising a targeting ligand and engineered cytotoxic cells comprising a targeting agent specific for the targeting ligand, for use in inducing cytotoxicity in a cancer cell, in delivering a cytotoxic cell to a cancer cell in a subject, and in treating cancer.

In one embodiment, the present disclosure provides an engineered cell having a first chimeric antigen receptor polypeptide including a first antigen recognition domain, a first signal peptide, a first hinge region, a first transmembrane domain, a first co-stimulatory domain, and a first signaling domain; and a second chimeric antigen receptor polypeptide including a second antigen recognition domain, a second signal peptide, a second hinge region, a second transmembrane domain, a second co-stimulatory domain, and a second signaling domain; wherein the first antigen recognition domain is different than the second antigen recognition domain.

The present invention provides a human CD16.sup.+ natural killer cell line and a CAR-expressing human CD16.sup.+ natural killer cell line. These human CD16.sup.+ natural killer cell line and a CAR-expressing human CD16.sup.+ natural killer cell line does not include synthetic, genetically modified or purposely deliberately delivered polynucleotide encoding the CD16 receptor and are non-tumorigenic cell lines. Therefore, this human CD16.sup.+ natural killer cell line and a CAR-expressing human CD16.sup.+ natural killer cell line might provide considerable long-term safety for disease treatment.

The present invention relates to a method for culturing natural killer cells (NK cells) applied to immune therapy and, more particularly, to a medium addition kin for culturing NK cells with which lymphocytes derived from human peripheral blood can be cultured to effectively amplify and activate NK cells, which have an outstanding therapeutic effect on malignant tumors, while remarkably increasing the share of NK cells, and an NK cell culturing method using the kit.