The invention provides improved T cell compositions and methods for manufacturing T cells. More particularly, the invention provides methods of T cell manufacturing that result in adoptive T cell immunotherapies with improved survival, expansion, and persistence in vivo.

The chimeric antigen receptor that recognizes CCR8 as an antigen of the present invention has cytotoxic activity against CCR8-expressing cells by being expressed in effector cells.

An application of SCFV protein in preparation of a CAR gene expression vector is disclosed. The protein sequence of the SCFV protein is shown in SEQ ID No. 1. The 1st?21st amino acids are the extracellular signal peptide amino acid sequences. The 22nd?31st amino acids are Flag amino acid sequences. And the remaining sequences are CXCR4 scfv sequences. An application of the gene sequence encoding the SCFV protein in preparation of a CAR gene expression vector is disclosed, and the gene sequence is shown in SEQ ID No.2. A CAR gene expression vector and a CAR-T cell are disclosed. The expression vector is plent-EF1a-Flag-CXCR4 CAR, and CAR-T cells are used in the preparation of a drug for a targeted therapy of tumor cells with high expression of CXCR4.

Isolated pluralities of T cells which recognize at least one epitope of an intestinal cancer antigen or CNS cancer antigen and pharmaceutical compositions comprising the same are disclosed. Methods of making a plurality of T cells that recognize at least one epitope of an intestinal cancer antigen or CNS cancer antigen are also disclosed. Methods of treating an individual who has been diagnosed with cancer of a mucosal tissue or preventing such cancer in an individual at elevated risk are disclosed as are nucleic acid molecules that comprise a nucleotide sequence that encode proteins that recognize at least one epitope of an intestinal cancer antigen or CNS cancer antigen and T cells comprising such nucleic acid molecules.

NK cell based cancer immunotherapy, and particularly genetically modified NK92 cell-based immunotherapy is enhanced by expression CXCL12 and/or by suppression or deletion of CXCR4 in the natural killer cells to so reduce aggregation, rejection, and/or fratricide of the natural killer cells.

Compounds that either produce a higher proportion or greater absolute number of phenotypically identified naive, stem cell memory, central memory T cells, adaptive NK cells, and type I NKT cells are identified. Compositions and methods for modulating immune cells including T, NK, and NKT cells for adoptive cell therapies, such as those providing improvements in one or more therapeutic outcomes, are provided.

Embodiments relate to novel compositions and methods for treating solid tumors. Other embodiments relate to generating T cells able to home to and treat solid tumors. In accordance with these embodiments, T-cells expressing at least one C-X-C Motif Chemokine Receptor (CXCR) and chimeric antigen receptors (CARs) able to bind to B7H3 are disclosed. In certain embodiments, the present disclosure provides for polynucleotides and vectors encoding a CAR and a CXCR together or in separate constructs, where the CAR binds to B7H3 in solid tumor cells, other tumors, or malignancies. In other embodiments, methods of making T cells expressing a CAR that binds to B7H3 and expressing one or more CXCR are provided. In some embodiments, methods of preventing, treating, or ameliorating tumors or malignancies in a subject are disclosed including administering a composition of T cells expressing at least one CXCR and CARs that bind to B7H3.

Isolated pluralities of T cells which recognize at least one epitope of an intestinal cancer antigen or CNS cancer antigen and pharmaceutical compositions comprising the same are disclosed. Methods of making a plurality of T cells that recognize at least one epitope of an intestinal cancer antigen or CNS cancer antigen are also disclosed. Methods of treating an individual who has been diagnosed with cancer of a mucosal tissue or preventing such cancer in an individual at elevated risk are disclosed as are nucleic acid molecules that comprise a nucleotide sequence that encode proteins that recognize at least one epitope of an intestinal cancer antigen or CNS cancer antigen and T cells comprising such nucleic acid molecules.

The present disclosure provides a composition comprising a nucleic acid delivery vehicle, a nucleic acid encoding interleukin-7 (IL-7), and a nucleic acid encoding chemokine (C-C motif) ligand 19 (CCL19), and its use thereof.

Compounds that either produced a higher proportion or greater absolute number of phenotypically identified naive, stem cell memory, central memory T cells, adaptive NK cells, and type I NKT cells are identified. Compositions and methods for modulating immune cells including T, NK, and NKT cells for adoptive cell therapies with improved efficacy are provided.