The present technology comprises methods for regulating an the immune system, and in particular methods for the regulation of a specific immune response, including the regulation of lymphocyte activity. Methods of the present technology comprise both the negative and positive modulation of CEACAM1 protein function.

Provided herein are acute myeloid leukemia antigen targets for chimeric receptors and methods of using same.

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.

This document relates to methods and materials for treating a mammal having an autoimmune disease. For example, materials and methods for producing an immuno-activatable cell comprising a first chimeric antigen receptor and a second chimeric antigen receptor are provided. Methods and materials for treating a mammal having an autoimmune disease comprising administering an immuno-activatable cell are also provided.

Provided herein are genetically modified (GM) natural killer (NK) cells and methods of producing populations of GM NK cells. Further provided herein are methods of using the GM NK cells described herein, to, e.g., suppress the proliferation of tumor cells, or to inhibit pathogen infection, e.g., viral infection. In certain alternatives, GM NK cells provided herein lack expression of CBLB, NKG2A and/or TGFBR2 and/or function or show reduced expression and/or function of CBLB, NKG2A and/or TGFBR2. In certain alternatives, GM NK cells provided herein comprise modified CD16.

A novel chimeric receptor composition, a recombinant vector, a cell, and an application thereof. The novel chimeric receptor composition includes a conventional chimeric antigen receptor (CAR), and a NKG2D chimeric receptor including a full-length sequence or a truncated fragment of NKG2D, DAP10, and/or DAP12, referred to as a SNR-armed CAR. The chimeric receptor composition enables a conventional CAR-T cell to express a NKG2D extracellular domain and an intracellular signal domain, expands a CAR-T antigen recognition spectrum, solves the tumor heterogeneity, achieves a lower level of cytokine release while enhancing the killing capability of CAR-T on tumor cells expressing target antigens, reduces the possibility of cytokine storm occurrence, and improves the CAR-T security.

The present disclosure relates to T cells engineered to comprise a modification, e.g., knockdown, of an endogenous nucleic acid sequence encoding an IFNG, a modification, e.g., knockdown, of an endogenous nucleic acid sequence encoding a TNFA, and insertion of sequence(s) encoding a regulatory T cell promoting molecule and compositions and uses thereof.

Disclosed herein are engineered cells and/or hypoimmunogenic cells including engineered cells and/or hypoimmunogenic stem cells, engineered cells and/or hypoimmunogenic cells differentiated therefrom, and engineered cells and/or hypoimmunogenic CAR-T cells (primary or differentiated from engineered and/or hypoimmunogenic stem cells) and related methods of their use and generation comprising reduced expression of one or more Y chromosome genes and reduced expression of MHC I and/or MHC II human leukocyte antigen molecules and overexpression of CD47. Provided herein are cells further exhibiting reduced expression of T-cell receptors.

Human iPSC-derived macrophages, methods for the manufacture thereof, and methods of treatment of cancer and other conditions therewith. Human iPSC-derived macrophages further comprise a chimeric antigenic receptor (CAR) expressed thereon, such as Bai1, MegF10 or MerTK, referred to as iPSC-derived CAR-expressing macrophages (iPSC-CARMAs). The methods of treatment provide further co-administering to the subject an effective amount of iPSC-CARMAs and an antibody specific for the cancer, such as anti-CD47 or anti-EGFR antibody. The iPSC-derived macrophages promote phagocytic activity, reduce tumor burden, and improve subject survival.

The present disclosure provides compositions, including modified peripheral blood mononuclear cells (PBMCs) with reduced expression of Slc16a11 and/or reduced activity of MCT11. Also provided are siRNAs and gRNAs targeting Slc16a11. Methods of using the disclosed compositions in the treatment of cancer are also provided.