Epitope-specific immunotherapies have enabled the targeted treatment of a variety of diseases, ranging from cancer, infection, and autoimmune disorders. For CD8+ T cell-based therapies, the precise identification of immunogenic peptides presented by human leukocyte antigen (HLA) class I is essential which can be achieved by immunopeptidomics. Here, using lentivirus-mediated transduction and cell sorting approaches, we present a method to engineer a cell line that does not express its native HLA but instead expresses an HLA of interest (in this instance HLA-A*02:01). This technique can be used to elucidate the immunopeptidome of cell lines expressing different HLAs.
Keywords: Cancer; Cell lines; Gene editing; HLA; Immunopeptidomics; Immunotherapy; Lentivirus; Neoantigens; Transduction.
© 2023. The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature.