Cancer exome-based identification of tumor neo-antigens using mass spectrometry

Shelly Kalaora, Yardena Samuels*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Citations (Scopus)
25 Downloads (Pure)

Abstract

Neo-antigens expressed on tumors are targets for development of cancer immunotherapy strategies. Use of prediction algorithms to identify neo-antigens yields a significant number of peptides that must be validated in laborious and time-consuming methods; many prove to be false-positive identifications. The use of HLA peptidomics allows the isolation of the HLA-peptide complexes directly from cells and can be done on fresh tumor, patient-derived xerographs, or cell lines when the tissue sample is limited. This method can be used to identify both HLA class I and HLA class II or any different MHC from different species. Here we describe the steps to create the immune-affinity columns used from the process, the immunoprecipitation procedure, and also the isolation of the peptides that will be analyzed by mass spectrometry.

Original languageEnglish
Title of host publicationCancer Immunosurveillance
Subtitle of host publicationMethods and Protocols
EditorsAlejandro Lopez-Soto, Alicia R. Folgueras
PublisherHumana Press
Pages203-214
Number of pages12
Volume1884
ISBN (Electronic)978-1-4939-8885-3
ISBN (Print)978-1-4939-8884-6
DOIs
Publication statusPublished - 2019

Publication series

SeriesMethods in Molecular Biology
Volume1884
ISSN1064-3745

Bibliographical note

YS is supported by the Israel Science Foundation grant number 696/17. This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 754282), the ERC (StG-335377), the MRA (#402024), the Knell Family and the Hamburger Family , by the Henry Chanoch Krenter Institute for Biomedical Imaging and Genomics and the estates of Alice Schwarz-Gardos and John Hunter.

All Science Journal Classification (ASJC) codes

  • Molecular Biology
  • Genetics

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