Methods of generating populations of tumour-infiltrating T cells The present invention provides a method of generating a population of tumour-infiltrating T cells, said method comprising administering to a subject a positively charged amphipathic amino acid derivative, peptide or peptidomimetic which is able to lyse tumour cell membranes and then collecting a cellular sample from a tumour within said subject and separating T cells therefrom. The present invention further provides a method of generating a population of tumour-infiltrating T cells, said method comprising separating T cells from a cellular tumour sample taken from a subject treated with a positively charged amphipathic amino acid derivative, peptide or peptidomimetic which is able to lyse tumour cell membranes and optionally culturing said T cells. The present invention also provides the tumour-infiltrating T cells described above for use in treating tumour cells or preventing or reducing the growth, establishment, spread, or metastasis of a tumour.

Multi subunit protein modules are provided. Accordingly, there is provided a multi subunit protein module comprising at least three cell membrane polypeptides each comprising an amino acid sequence of an Fc receptor common gamma chain (FcRgamma), said amino acid sequence is capable of transmitting an activating signal; wherein at least one but not all of said at least three polypeptides comprises an extracellular binding domain capable of binding a target that is presented on a cell surface of a target cell of an immune cell, such that upon binding of said extracellular binding domain to said target said activating signal is transmitted in an immune cell expressing said multi subunit protein module. Also provided are cells expressing the multi subunit protein modules and uses thereof.

The present disclosure provides methods for re-stimulating TIL populations that lead to improved phenotype and increased metabolic health of the TILs and provides methods of assaying for TIL populations to determine suitability for more efficacious infusion after re-stimulation.

The present disclosure relates to methods, cells, and compositions for preparing T cell populations and compositions for adoptive cell therapy. In particular, provided herein are methods for efficiently expanding and activating T cell populations for genetic engineering and adoptive T cell immunotherapies. Also provided are cells and compositions produced by the methods and methods of their use.

The presently disclosed subject matter provides methods and compositions for treating cancer (e.g., melanoma). It relates to chimeric antigen receptors (CARs) that specifically target MDA (e.g., Trp1), and immunoresponsive cells comprising such CARs. The presently disclosed MDA-specific CARs have enhanced immune-activating properties, including anti-tumor activity.

A set of target peptides are presented by HLA A*0101, A*0201, A*0301, B*4402, B*2705, B*1402, and B*0702 on the surface of disease cells. They are envisioned to among other things (a) stimulate an immune response to the proliferative disease, e.g., cancer, (b) to function as immunotherapeutics in adoptive T cell therapy or as a vaccine, (c) facilitate antibody recognition of tumor boundaries in surgical pathology samples, (d) act as biomarkers for early detection and/or diagnosis of the disease, and (e) act as targets in the generation antibody-like molecules which recognize the target-peptide/MHC complex.

This invention provides the field of therapeutics. Most specifically present invention provides methods of generating in vitro engineered dendritic cells conditionally expressing interleukin-12 (IL-12) under the control of a gene expression modulation system in the presence of activating ligand and uses for therapeutic purposes in animals including human.

This invention provides the field of therapeutics. Most specifically present invention provides methods of generating in vitro engineered dendritic cells conditionally expressing interleukin-12 (IL-12) under the control of a gene expression modulation system in the presence of activating ligand and uses for therapeutic purposes in animals including human.

In certain embodiments, this disclosure relates to conjugates comprising a polypeptide of GM-CSF and a polypeptide IL-4. Typically, the GM-CSF and IL-4 are connected by a linker, e.g., polypeptide. In certain embodiments, the disclosure relates to isolated nucleic acids encoding these polypeptide conjugates, vectors comprising nucleic acid encoding polypeptide conjugates, and protein expression systems comprising these vectors such as infectious viral particles and host cells comprising such nucleic acids.

Methods are disclosed for producing defective ribosomal products (DRiPs) in blebs (DRibbles) by contacting cells with a proteasome inhibitor, and in some examples also an autophagy inducer, thereby producing treated cells. DRibbles can be used to load antigen presenting cells (APCs), thereby allowing the APCs to present the DRiPs and antigenic fragments thereof. Immunogenic compositions that include treated cells, isolated DRibbles, or DRibble-loaded APCs are also disclosed. Methods are also provided for using treated cells, isolated DRibbles, or DRibble-loaded APCs to stimulate an immune response, for example in a subject. For example, DRibbles obtained from a tumor cell can be used to stimulate an immune response against the same type of tumor cells in the subject. In another example, DRibbles obtained from a pathogen-infected cell or cell engineered to express one or more antigens of a pathogen can be used to stimulate an immune response against the pathogen in the subject.