A T cell product for administration to a subject and a use thereof are provided. The product includes at least one allogeneic T cell, which expresses at least one MHC molecule identified as an exogenous source by at least one T cell of the subject. The T cell product can widen the range of a donor and activate an immune response of the subject. The T cell product is used in the preparation of a drug for treating tumors.

The present application provides fusion proteins that have two polypeptides, each having an extracellular domain and an intracellular domain, and the two extracellular domains form a binding site for TGF and the two intracellular domains form the intracellular domain of an IL-23 receptor complex. The present application also provides nucleic acids encoding the fusion proteins, vectors comprising the nucleic acids, and engineered cells expressing the fusion proteins. Method of producing the engineered cells and methods of treatment that involves administering engineered cells are also provided.

The present application relates to a chimeric antigen receptor (CAR), comprising a GPC3 binding domain, a transmembrane domain, a costimulatory domain and an intracellular signaling domain, the GPC3 binding domain comprises an antibody or a fragment thereof which specifically binding to GPC3, the antibody comprises a light chain complementary determining region 1 (LCDR1), a light chain complementary determining region 2 (LCDR2) and a light chain complementary determining region 3 (LCDR3), the amino acid sequence of the LCDR1 is as set forth in SEQ ID NO: 16, the amino acid sequence of the LCDR2 is as set forth in SEQ ID NO: 17 and the amino acid sequence of the LCDR3 is as set forth in SEQ ID NO: 18. The present application also relates to an isolated nucleic acid encoding the CAR, a vector comprising the nucleic acid, an immune effector cell comprising the nucleic acid or the vector and a preparation method thereof as well as a use of the CAR.

The present application provides constructs comprising an antibody moiety that specifically binds to a complex comprising an AFP peptide and an MHC class I protein. Also provided are methods of making and using these constructs.

The present invention relates to a method for producing a large amount of natural killer cells and the use of natural killer cells obtained by the method as an anticancer agent. The use of the method of the present invention can produce fresh NK cells with high purity within a short time compared to conventional method, and can also produce cold-preserved NK cells and thawed cryopreserved NK cells, which have efficacy comparable with that of the fresh NK cells. Furthermore, it can produce NK cells, which have efficacy comparable with that of the fresh NK cells, from cryopreserved CD3-negative cells. The fresh NK cells, cold-preserved NK cells and cryopreserved NK cells produced by the methods of the present invention can exhibit therapeutic effects against various cancers, including colorectal cancer, lung cancer, liver cancer, pancreatic cancer and leukemia, indicating that these NK cells can be effectively used as cellular therapeutic agents. In addition, the present inventors have established doses and methods of administration, which show excellent effects when the fresh NK cells, cold-preserved NK cells and cryopreserved NK cells of the present invention are used as pharmaceutical compositions for cellular therapy.

Provided in the present invention is a method for treating tumor. An immune effector cell and a second treatment agent are applied to individual suffering from tumor, wherein the immune effector cell expresses a receptor for recognizing tumor antigen, and wherein the second treatment agent is a compound of formula I or a pharmaceutically acceptable salt thereof.

The present disclosure generally relates to, inter alia, a class of chimeric switch receptors containing an endodomain of an IL-9 receptor, engineered to modulate transcriptional regulation in a ligand-dependent manner. The disclosure also provides compositions and methods useful for producing such receptors, nucleic acids encoding same, host cells genetically modified with the nucleic acids, as well as methods for modulating gene expression, modulating an activity of a cell, and/or for the treatment of various health conditions or diseases.

The invention involves generating a T cell response to subdominant antigens and using the cells to therapeutically change the cellular homeostasis and nature of the immune response. In a preferred embodiment, the cells are generated outside of the patient avoiding the influence of the patient's immunologic milieu. By stimulating and growing the T cells from a patient in a tissue culture to one or more subdominant antigens and the transplanting them into the patient, if enough cells are expanded and transplanted, the transplanted cells overwhelm the endogenous dominant T cells in the response to either break or induce immune tolerance or otherwise modify the immune response to the cells or organism expressing that antigen. When the memory cells are established they are then reflective of this new immunodominance hierarchy so that the desired therapeutic effect is long lasting. In effect, the transplantation exogenously generated T cells reactive to the subdominant antigens is recapitulating priming and rebalancing the patient's immune response to target previously subdominant antigens in the cells or organism to produce a therapeutic benefit.

GPC3 T cell antigen coupler (TAC) polypeptides having (i) an antigen-binding domain that binds GPC3, (ii) an antigen-binding domain that binds a protein associated with a TCR complex, and (iii) a T cell receptor signaling domain polypeptide are provided.

There is provided at least one isolated cell comprising at least one HBV epitope-reactive exogenous T cell receptor and/or fragment thereof, and methods for producing them. In particular, there is provided polynucleotides, constructs and vectors encoding at least one HBV epitope-reactive exogenous T cell receptor for use in the treatment of Hepatitis B Virus (HBV) and Hepatocellular Carcinoma (HCC). The invention further provides kits and methods of detection of HBV and HCC.