Provided are methods and compositions for obtaining genome-engineered iPSCs, and derivative cells with stable and functional genome editing at selected sites. Also provided are cell populations or clonal cell lines derived from genome-engineered iPSCs, which comprise targeted integration of one or more exogenous polynucleotides, and/or in/dels in one or more selected endogenous genes.

The present invention relates to methods for the specific separation of target cells from a biological sample, comprising specific binding of the target cells to phase-change hydrogel compositions and separation of respective cell-hydrogel complexes by counter-current centrifugation.

The present invention provides a cell which co-expresses a first chimeric antigen receptor (CAR) and second CAR at the cell surface, each CAR comprising an antigen-binding domain, wherein the antigen-binding domain of the first CAR binds to CD19 and the antigen-binding domain of the second CAR binds to CD22.

Provided are methods and compositions for obtaining genome-engineered iPSCs, and derivative cells with stable and functional genome editing at selected sites. Also provided are cell populations or clonal cell lines derived from genome-engineered iPSCs, which comprise targeted integration of one or more exogenous polynucleotides, and/or in/dels in one or more selected endogenous genes.

Provided herein are methods for producing engineered T cells that express a recombinant receptor, such as for use in cell therapy. In some aspects, the provided methods include one or more steps for incubating the cells under stimulating conditions, introducing a recombinant polypeptide to the cells through transduction or transfection, and/or cultivating the cells under conditions that promote proliferation and/or expansion, in which one or more steps is carried out in the presence of an agent that inhibits mammalian target of rapamycin (mTOR) activity. In some aspects, cultivation is performed in the presence of an agent that inhibits mammalian target of rapamycin (mTOR) activity. In some aspects, the provided methods produce genetically engineered T cells with improved persistence and/or anti-tumor activity in vivo.

The present invention provides a cell which co-expresses a first chimeric antigen receptor (CAR) and second CAR at the cell surface, each CAR comprising an antigen-binding domain, wherein the antigen-binding domain of the first CAR binds to CD19 and the antigen-binding domain of the second CAR binds to CD22.

The invention provides methods of making immune effector cells (e.g., T cells, NK cells) that express a chimeric antigen receptor (CAR), and compositions generated by such methods.

A population of highly suppressive human CD8.sup.+CD45RC.sup.low/− Tregs is characterized by expressing Foxp3 and producing IFNγ, IL-10, IL-34 and TGFβ to mediate their suppressive activity. Accordingly, methods capable of increasing expansion and immunosuppressive capacity of such a population of CD8+CD45RC.sup.low/− Tregs are highly desirable for therapeutic purposes. Rapamycin has been shown to increase the expansion and immunosuppressive capacities of the population of CD8.sup.+CD45RC.sup.low/− Tregs. Accordingly, the method of increasing expansion and immunosuppressive capacity of a population of CD8.sup.+CD45RC.sup.low/− Tregs includes culturing the population of CD8.sup.+CD45RC.sup.low/− Tregs in presence of a rapamycin compound.

Provided herein are methods for expanding populations of regulatory B cells comprising treating a population of B cells with IL-4 and CD40 ligand. Further provided herein are methods of expanding populations of regulatory T cells comprising expanding a population of T cells under Treg expansion conditions and selecting for CD9.sup.+ Tregs. Also provided herein are methods of treating immune disorders with the regulatory B cells and/or regulatory T cells.

[Object] To provide a novel examination method for a cancer treatment effect, screening method fora peptide fora cancer vaccine, and peptide and composition for inducing an immune response against cancer. [Solving Means] Provided are an examination method for a cancer treatment effect and a screening method for a peptide for a cancer vaccine each including detecting an antibody against a cancer/testis antigen or an anti-p53 antibody in a sample. It is suitable that an anti-XAGE1 antibody (IgG and/or IgA) be detected, or an anti-NY-ESO-1 antibody (IgG) be detected. Also provided are a novel peptide and novel composition for inducing immune responses against cancer.