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Reverse immunology: From peptide sequence to tumor-killing human T-cell clones. | LitMetric

AI Article Synopsis

Article Abstract

Recent advances in next generation sequencing expanded the availability of tumor mutanome data that list the mutations present in cancer cells. Mutated proteins are an interesting source of neoantigens that can be used to specifically target tumor cells in the context of immunotherapy. However, identifying new antigenic peptides from mutated proteins remains challenging. In this chapter, we present Reverse Immunology as an approach to identify potential antigens from any given polypeptide sequence. First, we explain the rationale behind the identification of candidate HLA-binding peptides through mass spectrometry or in silico approaches. Then, we describe the isolation of low-frequency T-cell precursors specific for the candidate peptides using peptide-HLA multimers. Finally, we discuss validation steps leading to the identification of a T-cell clone recognizing tumor cells that endogenously process the candidate peptide. We also present approaches to study the impact of the proteasome complex on candidate peptide processing.

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Source
http://dx.doi.org/10.1016/bs.mie.2019.05.033DOI Listing

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