A T cell receptor molecule (TCR) containing an alpha chain portion and a beta chain portion wherein the alpha chain portion contains three complementarity determining regions (CDRs): CDR1?: SSYSPS CDR2?: YTSAATL CDR3?: VVSPFSGGGADGLT or comprising or consisting of SPFSGGGADGLT and the beta chain portion contains three complementarity determining regions (CDRs): CDR1?: DFQATT CDR2?: SNEGSKA CDR3?: comprising SARDGGEG or comprising or consisting of RDGGEGSETQY, or wherein up to three amino acid residues in one or more CDRs are replaced by another amino acid.

Disclosed in the present application are: a method for preparing in vitro/ex vivo antigen-specific cytotoxic T-cells by using B cells treated with biological response modifier; and a use thereof. The cytotoxic T-cells prepared by the method of the present application can be used advantageously for treating infectious disease and cancer and the like.

Improved cancer therapies are provided and include methods for inhibiting growth of tumor cells in an individual by administering to the individual a polynucleotide encoding a protein that contains an immunoglobulin Fc and an antagonist peptide of a receptor expressed by tumor cells, and administering a chemotherapeutic agent to the individual, such that the growth of the tumor cells and/or metastasis of cancer cells is synergistically inhibited. Approaches are also provided for improving cancer therapies that include adoptive immunotherapies by using the polynucleotides to enhance tumor infiltration by immune cells.

Methods of sorting T lymphocytes in a microfluidic device are provided. The methods can include flowing a fluid sample comprising T lymphocytes through a region of a microfluidic device that contains an array of posts. The array of posts can be configured to have a critical size (D.sub.c) that separates activated T lymphocytes from na?ve T lymphocytes. Also provided are microfluidic devices having an array of posts configured to separate activated T lymphocytes from na?ve T lymphocytes, compositions enriched for T lymphocytes, particularly activated T lymphocytes that are known to be reactive to an antigen of interest, and methods of treating subjects suffering from a pathogenic disorder or cancer by administering such compositions.

The present disclosure provides methods and compositions related to the modification of immune effector cells to increase therapeutic efficacy. In some embodiments, immune effector cells modified to reduce expression of one or more endogenous target genes, or to reduce one or more functions of an endogenous protein to enhance effector functions of the immune cells are provided. In some embodiments, immune effector cells further modified by introduction of transgenes conferring antigen specificity, such as exogenous T cell receptors (TCRs) or chimeric antigen receptors (CARs) are provided. Methods of treating a cell proliferative disorder, such as a cancer, using the modified immune effector cells described herein are also provided.

The present disclosure provides methods and compositions related to the modification of immune effector cells to increase therapeutic efficacy. In some embodiments, immune effector cells modified to reduce expression of one or more endogenous target genes, or to reduce one or more functions of an endogenous protein to enhance effector functions of the immune cells are provided. In some embodiments, immune effector cells further modified by introduction of transgenes conferring antigen specificity, such as exogenous T cell receptors (TCRs) or chimeric antigen receptors (CARs) are provided. Methods of treating a cell proliferative disorder, such as a cancer, using the modified immune effector cells described herein are also provided.

This invention provides peptides, immunogenic compositions and vaccines comprising same, and methods of treating, reducing the incidence of, and inducing immune responses to a WT1-expressing cancer, comprising same.

An object of the present invention is induction of CD4-positive T cells from pluripotent stem cells. This object is achieved by production of CD4-positive T cells by introducing a CD4 gene or a gene product thereof into T cells induced from pluripotent stem cells.

A cell for immunotherapy of the present invention includes a nucleic acid encoding a Wilms tumor 1 gene product or a fragment of the Wilms tumor 1 gene product, wherein the nucleic acid including (i) a region encoding a fragment of the Wilms tumor 1 gene product, the fragment being indicated by positions 194 to 493 of amino acid sequence of SEQ ID NO:1 or by positions corresponding to the positions 194 to 493 of amino acid sequence corresponding to SEQ ID NO:1 and (ii) only one AUG as a functional start codon, connected to a 5 terminal side of the region via 3m (m is 124-192) bases intervening between the AUG as the functional start codon and the 5 terminal side of the region, and a nucleic acid encoding CD1d, wherein the cell has been loaded with a glycolipid recognized by antigen receptor of NKT cell.

The invention provides improved compositions for adoptive immune effector cell therapies for treatment, prevention, or amelioration of numerous conditions including, but not limited to cancer, infectious disease, autoimmune disease, inflammatory disease, and immunodeficiency.