The present disclosure provides a heterodimeric, conditionally active chimeric antigen receptor (CAR), and a nucleic acid comprising a nucleotide sequence encoding the CAR. The present disclosure provides cells genetically modified to produce the CAR. A CAR of the present disclosure can be used in various methods, which are also provided.

The disclosure features methods for treating cancer, including solid tumors and disseminated cancers such as myeloid malignancies, using one or more mRNAs encoding an OX40L polypeptide, an IL-12 polypeptide, an IL-15 polypeptide, and combinations thereof.

The invention disclosed herein relates to improved methods for expanding cell populations, particularly B cell populations. The invention further relates to improved B-cell expansion media, compositions comprising expanded B cells and methods of using such expanded B cells. The invention further relates to methods of treating diseases or disorders wherein a population of B cells is obtained and cultured, and wherein said B cells are engineered to express a payload and/or a chimeric receptor, and wherein said B cells are administered to a subject.

Genetically programmed microorganisms, such as bacteria or virus, pharmaceutical compositions thereof, and methods of modulating and treating cancers are disclosed.

The disclosure relates to compositions and methods for the preparation, manufacture and therapeutic use of combinations of immunomodulatory polynucleotides (e.g., mRNAs) encoding an immune response primer polypeptide (e.g., an interleukin 23 (IL-23) polypeptide or an interleukin 36γ (IL-36-gamma) polypeptide), and an immune response co-stimulatory signal polypeptide (e.g., an OX40L polypeptide).

The invention relates to novel TNF family ligand trimer-containing antigen binding molecules having at least one moiety capable of specific binding to PD1 and a first and a second polypeptide that are linked to each other by a disulfide bond, the first polypeptide having two ectodomains of a TNF ligand family member or fragments thereof that are connected to each other by a peptide linker and the second polypeptide having a single ectodomain of the same TNF ligand family member or a fragment thereof.

The present disclosure provides antigen-presenting polypeptides, including single-chain antigen-presenting polypeptides and multimeric antigen-presenting polypeptides comprising one or more chemical conjugation sites for incorporation of, for example, epitope containing polypeptides. The present disclosure provides nucleic acids comprising nucleotide sequences encoding antigen-presenting polypeptides comprising one or more chemical conjugation sites, as well as cells genetically modified with the nucleic acids. The single-chain and multimeric antigen-presenting polypeptides and their epitope conjugates are useful for modulating the activity of a T-cell, and accordingly, the present disclosure provides methods of modulating activity of a T-cell in vitro and in vivo as a method of treatment.

Provided are a preparation method of trophoblasts with limited generations, a culture method of SNK cells and a method for treating tumor. The preparation method of trophoblasts includes the following steps: ligating a TAX2 gene to a lentiviral expression vector, followed by transferring into competent cells to obtain a lentivirus containing the TAX2 gene; infecting PBMCs with the lentivirus containing the TAX2 gene and culturing, and collecting CD3-cells; ligating a 41BBL-MICA fusion gene to the lentiviral expression vector, followed by transferring into the competent cells to obtain a lentivirus containing the 41BBL-MICA fusion gene; and mixing the CD3-cells with the lentivirus containing the 41BBL-MICA fusion gene and culturing to obtain the trophoblasts with limited generations.

Provided herein are methods and compositions for identifying a targeted genomic insertion in a cell. Also provided are heterologous polypeptides that are co-expressed under the control of enodogenous loci and methods of using same.

The present invention relates to TWEAK-receptor agonists for use in the treatment of a cancer, wherein the TWEAK-receptor agonist is combined with immunotherapy of the cancer. The TWEAK-receptor agonist preferably is a multivalent ligand that causes clustering of TWEAK-receptors at the cell surface. A suitable TWEAK-receptor agonist is an agonistic anti-Fn14 antibody. The TWEAK-receptor agonist and immunotherapy be can further be combined with a SMAC mimetic in the treatment of cancer. The TWEAK-receptor agonist is useful, optionally in combination with a SMAC mimetic, to prevent resistance of a cancer to immunotherapy and/or to treat a cancer comprising tumor cells that are resistant to immunotherapy.