It is an object of the present invention to provide a method for efficiently producing a B cell population comprising B cells that recognize a specific antigen. According to the present invention, provided is a method for producing a B cell population, comprising: a step (c) of culturing a cell population comprising B cells together with a specific antigen in the absence of IL-21, in the absence of IL-4, and in the presence of a cytokine other than IL-21 and IL-4, while giving stimulation mediated by CD40 and a BAFF receptor to the cells; and a step (d) of culturing the cell population comprising B cells, while giving stimulation mediated by has to the cells, so as to obtain a B cell population comprising B cells that recognize the specific antigen.

Disclosed are compositions of cells, libraries of such cells and methods of making T cell populations for treatment of disorders such as cancer and viral infections. T cell composition comprise cell subpopulations stimulated, in some embodiments, with FRAME, survivin and/or WT1.

Provided herein are methods for ex vivo expansion of a T cells, including tumor-reactive T cells, and compositions containing such T cells. Also provided are methods for treating diseases and conditions such as cancer using compositions of the present disclosure.

The invention is directed to an isolated population of mammal cells comprising about 75% or higher B-1a regula e PBS-treated tory cells expressing the cell surface inhibitory receptors lympho-cyte-activation gene 3 (LAG-3), programmed cell death protein 1 (PD-1), and C-X-C chemokine receptor type 4 (CXCR4), and secreting interleukin-27 (IL-27). The invention is also directed to methods of preparing and using the cell population to suppress the immune system and/or to treat or prevent diseases.

Cell culture media, preservative media or cryopreservation media include a low dose of one or more cytokines, e.g. interleukin-2 (IL-2).

Provided are a composition for culturing NK cells, and a method of culturing NK cells using the same. According to an aspect, in culturing NK cells from peripheral blood mononuclear cells, when NK cells are cultured in a medium including the composition for culturing NK cells, the composition including IL-15, IL-18, and IL-27, the NK cells may proliferate in large quantities and activation of NK cells may be promoted. Therefore, when the NK cells are used, cancer cell apoptosis or cancer cell-killing ability may be promoted. Accordingly, the NK cells may be used as an effective adoptive immune cell therapy product in cancer prevention or treatment.

Provided are a composition for culturing NK cells, and a method of culturing NK cells using the same. According to an aspect, in culturing NK cells from peripheral blood mononuclear cells, when NK cells are cultured in a medium including the composition for culturing NK cells, the composition including IL-15, IL-18, and IL-27, the NK cells may proliferate in large quantities and activation of NK cells may be promoted. Therefore, when the NK cells are used, cancer cell apoptosis or cancer cell-killing ability may be promoted. Accordingly, the NK cells may be used as an effective adoptive immune cell therapy product in cancer prevention or treatment.

The present invention provides immune cells (such as CAR-T cells) having higher antitumor activity than immune cells (such as CAR-T cells) expressing a CAR alone (not expressing cytokines and/or chemokines). A T cell provided in one aspect of the present invention expresses (1) a chimeric antigen receptor (CAR), (2) at least one selected from the group consisting of interleukin-15 (IL-15), interleukin-18 (IL-18), interleukin-21 (IL-21), and interleukin-27 (IL-27), and (3) CC chemokine ligand 19 (CCL19).

Factors for extending the ability of isolated pluripotent stem cells to generate extraembryonic lineages in vivo, following in vitro culture, herein, chemical extenders of pluripotency (CEP). Methods of extending the ability of a pluripotent cell to generate embryonic and extraembryonic lineages. The cell to be reprogrammed is contacted with effective amounts of the CEPs for a sufficient period of time to reprogram the cell into a chemically induced extended pluripotent cell (ciEPSC). ciEPSC are identified as an extended pluripotent cell based on properties including: (i) morphologically and (ii) functionally for example, based on their ability contribute to both TE and ICM, in vivo. The ciEPSCs can be cultured or induced to differentiate into cells of a desired type, and used in a number of applications, including but not limited to cell therapy and tissue engineering.

Provided are a composition for culturing NK cells, and a method of culturing NK cells using the same. According to an aspect, in culturing NK cells from peripheral blood mononuclear cells, when NK cells are cultured in a medium including the composition for culturing NK cells, the composition including IL-15, IL-18, and IL-27, the NK cells may proliferate in large quantities and activation of NK cells may be promoted. Therefore, when the NK cells are used, cancer cell apoptosis or cancer cell-killing ability may be promoted. Accordingly, the NK cells may be used as an effective adoptive immune cell therapy product in cancer prevention or treatment.