33 results about "Adoptive cell transfer" patented technology

Methods for the ex vivo generation of cells of the innate (NKT cells and NK cells) and adaptive (T cells) immune systems for use in adoptive cell transfer (ACT) are provided. The NKT cells render T cells resistant to immune suppression (e.g. they are resistant to the effects of myeloid-derived suppressor cells (MDSCs)). The method involves culturing disease-primed immune cells (obtained from a cancer patient or from a patient with an infectious disease) with i) bryostatin and ionomycin (B / I) to activate and differentiate the cells; followed by sequentially culturing the cells with a) a combination of IL-7 and IL-15 and then b) IL-2, to further differentiate the cells and to render them immune resistant. The resistant immune cells are used to treat and prevent cancer and infectious diseases.

A method for predicting whether a patient will be a long-term survivor on treatment of a disease by adoptive cell transfer (ACT), is disclosed comprising: (i) analyzing a blood-derived sample obtained from the patient for one or more prognostic markers of long-term survival on treatment of a disease by ACT, and; (ii) based on the analysis of step (i), predicting whether the patient will be a long-term survivor on treatment of the disease by ACT. Also disclosed are methods for treating a patient by ACT, methods for selecting a patient for treatment by ACT, and methods for selecting a patient for treatment of a disease by ACT.

The present invention provides a polypeptide having the formula: St-R1-S1-Q-S2-R2 wherein St is a stalk sequence which, when the polypeptide is expressed at the surface of a target cell, causes the R and Q epitopes to be projected from the cell surface; R1 and R2 are a Rituximab-binding epitopes each having the an amino acid sequence selected from the group consisting of SEQ ID No. 1, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 and 16 or a variant thereof which retains Rituximab-binding activity; S1 and S2 are optional spacer sequences, which may be the same or different; and Q is a QBEnd1O-binding epitope having the amino acid sequence shown as SEQ ID No. 2 or a variant thereof which QBEnd1O-binding activity. The invention also provides a nucleic acid sequence encoding such a polypeptide and uses thereof in adoptive cell transfer.

The present invention generally relates to methods of preparing leukocytes, particularly T cells, ex vivo for use in immunotherapy, particularly cancer immunotherapy. More specifically, the invention relates to methods for the preparation of leukocytes exhibiting cytotoxic properties for use in adoptive cell transfer. The invention also relates to cells and compositions including them for cancer immunotherapy. The invention also relates to methods of immunotherapy, particularly cancer immunotherapy. The present invention relates to a method for producing a leukocyte that has an enhanced capacity for killing a target cell, the method including contacting the leukocyte with a PTPN2 inhibitor in conditions for enabling the inhibitor to inactivate PTPN2 in the leukocyte, thereby producing a leukocyte that has an enhanced capacity for killing a target cell. Preferably, the leukocyte is contacted with the PTPN2 inhibitor in the absence of a T helper cell.

Embodiments of the disclosure concern engineered auto / allo-immune defense receptor (ADR)-expressing T cells that selectively target activated T cells, including pathogenic T cells, to incapacitate them. The chimeric receptors comprise moieties for targeting 4-1BB, OX40, and CD40L, for example, whose expression is indicative of activated T cells. In particular embodiments, there are methods of preventing or treating conditions associated with activated T cells using adoptive T-cell transfer of cells encoding the ADRs.

The present disclosure relates generally to polypeptides, cells, compositions and methods for enhancing immune function, and in particular the immune function of T cells, such as CD8+ T cells. More particularly, the present invention relates to modified DNAM-1 polypeptides, T cells expressing recombinant and / or modified DNAM-1, and methods of using these cells in adoptive T cell transfer, such as for the treatment of cancer or infection. The disclosure also relates to methods for preparing T cells with enhanced immune function; methods for preparing T cells for adoptive cell therapy; methods for assessing the immune function of T cells in a subject or cell population; methods for predicting the responsiveness of a subject with cancer to cancer therapy; and methods for predicting the survival or survival time of a subject with cancer.

The present disclosure includes compositions, methods, and uses for a subset of T cells, SP T (TSP) cells, which display a quiescent (G0) phenotype. Aspects of the disclosure include methods for obtaining and mobilizing TSP cells in a subject. Other aspects include methods of adoptive cell transfer in a subject utilizing TSP cells.

Provided herein are methods and compositions useful for treating PDL1 and / or PDL2 positive cancers through adoptive cell transfer of T cells genetically engineered to express a PD1-specific chimeric antigen receptor. Co-stimulatory domains such as Dap 10 may be included to enhance efficacy.

The present invention describes a method for treating cancer comprising adoptive transfer of tumor antigen specific CD8+ T cells and an oncolytic virus vaccine targeting the same antigen.