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    • 2. 发明申请
    • TCR-INDEPENDENT MOLECULAR IDENTIFICATION OF MUTATION-RELATED AND TUMOR-SPECIFIC T CELLS
    • US20220357324A1
    • 2022-11-10
    • US17754452
    • 2020-10-15
    • MEDIZINISCHE HOCHSCHULE HANNOVER
    • Norman WOLLER
    • G01N33/569G01N33/574
    • The present invention relates to the field of tumor immunology. It provides a method for identifying mutation-related human CD8+ T cells, in particular, tumor-specific T cells of a human subject, comprising analyzing CD8+ T cells of the subject by analysing the expression of at least one marker selected from a first group consisting of CD82, CD194, CD244, CD28, CD62L and CD55, and preferably, a marker selected from a second group comprising CD11a or CD18 or CD43. A preferred marker for mutation-related CD8+ T cells is CD82, which may be analysed in combination, e.g., with CD11a. Without the need to identify any epitope to which T cells reacts, this method can advantageously be used to isolate the entire individual pool of mutation-related T cells, and, optionally, to identify the sequence of a mutation-related TCR, which allows for generation of transgenic T cells expressing the TCR. Compositions substantially comprising tumor-specific CD82hiCD8+ T cells and/or CD194hi, CD244−, CD28+, CD62L+ and/or CD55+ CD82hi CD8+ T cells can be used for treatment of a cancer patient, e.g., by adoptive T cell transfer. The method of the invention can also be used for diagnostic purposes to identify human mutation-related T cells or diagnosing a tumor disease or for testing responses of a cancer patient to an immune stimulatory therapy, preferably, a therapy with a checkpoint inhibitor.