Nature Communications (Dec 2017)

Lipid bodies containing oxidatively truncated lipids block antigen cross-presentation by dendritic cells in cancer

  • Filippo Veglia,
  • Vladimir A. Tyurin,
  • Dariush Mohammadyani,
  • Maria Blasi,
  • Elizabeth K. Duperret,
  • Laxminarasimha Donthireddy,
  • Ayumi Hashimoto,
  • Alexandr Kapralov,
  • Andrew Amoscato,
  • Roberto Angelini,
  • Sima Patel,
  • Kevin Alicea-Torres,
  • David Weiner,
  • Maureen E. Murphy,
  • Judith Klein-Seetharaman,
  • Esteban Celis,
  • Valerian E. Kagan,
  • Dmitry I. Gabrilovich

DOI
https://doi.org/10.1038/s41467-017-02186-9
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 16

Abstract

Read online

Tumor-associated dendritic cells are defective in their ability to cross-present antigens, and they accumulate lipid bodies. Here the authors show that this defect is due to an impaired trafficking of peptide-MHC class I caused by the interaction of electrophilic lipids with chaperone heat shock protein 70.