Can Immunopeptidomics Redefine Cancer Immunotherapy Development? - Takeaways - MDSpire
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Can Immunopeptidomics Redefine Cancer Immunotherapy Development?

Immunopeptidomics is helping researchers identify tumor-presented antigens that could inform the development of targeted cell therapies and personalized cancer vaccines

  • By

  • Katherine Tran

  • November 3, 2026

  • 4 min

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  • 1

    Immunopeptidomics uses liquid chromatography-tandem mass spectrometry to profile antigenic peptides displayed by major histocompatibility complex molecules.

  • 2

    In pancreatic ductal adenocarcinoma, immunopeptidomics can help identify tumor-specific and T-cell targets, including spliced, modified, and cryptic peptides.

  • 3

    Immunopeptidomics workflows combine immunoaffinity purification, high-resolution mass spectrometry, and bioinformatics to characterize diverse HLA-bound peptides.

  • 4

    Data-dependent acquisition provides high-confidence fragmentation spectra, whereas data-independent acquisition supports broad coverage and reproducibility across replicates.

  • 5

    Electron-activated dissociation can resolve peptide isomers and labile modifications, while targeted methods such as multiple reaction monitoring can validate and quantify selected antigens.

Original Source(s)

Can Immunopeptidomics Redefine Cancer Immunotherapy Development?

  • by Katherine Tran

  • November 3, 2026

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