The present disclosure provides methods and compositions for genetically modifying lymphocytes, for example T cells and/or NK cells. In some embodiments, the methods include reaction mixtures, and resulting cell formulations, that are created using whole blood, or a component thereof that is not a PBMC, and additionally comprise T cells and recombinant retroviral particles having polynucleotides that encode a CAR. In some embodiments, modified lymphocytes are reintroduced into a subject subcutaneously. In some embodiments, polynucleotides that provide T cells the ability to regulate cell survival and proliferation in response to binding to a CAR, are provided.

Provided by the present invention is a chimeric antigen receptor comprising a co-stimulatory receptor, the chimeric antigen receptor having a structure of scFv(X)-(Y)CD3zeta-2A-(Z); X comprises a tumortargeting antibody or a ligand or receptor capable of specifically binding to a tumor; Y is an intracellular region of the co-stimulatory receptor, and Z is a co-stimulatory receptor that is selected from among ICOS, CD28, CD27, HVEM, LIGHT, CD40L, 4-1BB, OX40, DR3, GITR, CD30, TIMI, SLAM, CD2, CD226. Further provided by the present invention are CAR-T cells that are constructed by means of a recombinant expression vector of the described chimeric antigen receptor, a preparation method therefor and an application thereof. The CAR-T cells described in the present invention significantly improve the tumor-killing abilities and amplification abilities thereof.

This disclosure describes chimeric antigen receptors for expression in a Natural Killer (NK) cell, pharmaceutical compositions that include NK cells (and/or iPSCs) modified to express a chimeric antigen receptor, and methods involving such chimeric antigen receptors. Generally, the chimeric antigen receptor includes an ectodomain that includes an antigen recognition region, a transmembrane domain linked to the ectodomain, and an endodomain linked to the transmembrane domain. The endodomain can include a signaling peptide that activates an NK cell.

Provided herein are chimeric antigen receptors (CARs) for cancer therapy, and more particularly, CARs containing a scFv from a CD33 monoclonal antibody. Provided are immune effector cells containing such CARs, and methods of treating proliferative disorders such as acute myeloid leukemia (AML), and relapsed or refractory AML.

The present invention provides DNA vaccines for the treatment of allergies. The vaccines comprise the coding sequence for one or more allergenic epitopes, and preferably the full protein sequence, of the allergenic protein from which the epitope(s) is derived, fused inframe with the lumenal domain of the lysosomal associated membrane protein (LAMP) and the targeting sequence of LAMP. The vaccines allow for presentation of properly configured three dimensional epitopes for production of an immune response. The vaccines can be multivalent molecules, and/or can be provided as part of a multivalent vaccine containing two or more DNA constructs.

Chimeric antigen receptors containing human CD19 antigen binding domains are disclosed. Nucleic acids, recombinant expression vectors, host cells, antigen binding fragments, and pharmaceutical compositions, relating to the chimeric antigen receptors are also disclosed. Methods of treating or preventing cancer in a subject, and methods of making chimeric antigen receptor T cells are also disclosed.

The present disclosure relates to chimeric engulfment receptor molecules, host cells modified to include the phagocytic engulfment molecules, and methods of making and using such receptor molecules and modified cells.

The present invention provides novel compounds comprising an antigen of AML cells, and uses thereof.

The present invention is directed to compositions and methods to increase the expression of PD-L1 and/or IDO-1 in a population of cells, the modulated cells expressing increased PD-L1 and/or IDO-1, and methods related to the immunosuppressive effects obtained by cells expressing increased PD-L1 and/or IDO-1.

A composition comprising cell-derived particles presenting heterologous CD24, wherein the cell is a non-cancerous cell and wherein the composition is substantially devoid of intact cells is disclosed. Methods of producing the cell-derived particles and methods of using the cell-derived particles in treatment of cytokine storm syndrome, tissue injury associated with the inflammation and Coronavirus infection are also disclosed.