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Epigenetic stability of exhausted T cells limits durability of reinvigoration by PD-1 blockade

  • Kristen E. Pauken
  • , Morgan A. Sammons
  • , Pamela M. Odorizzi
  • , Sasikanth Manne
  • , Jernej Godec
  • , Omar Khan
  • , Adam M. Drake
  • , Zeyu Chen
  • , Debattama R. Sen
  • , Makoto Kurachi
  • , R. Anthony Barnitz
  • , Caroline Bartman
  • , Bertram Bengsch
  • , Alexander C. Huang
  • , Jason M. Schenkel
  • , Golnaz Vahedi
  • , W. Nicholas Haining
  • , Shelley L. Berger
  • , E. John Wherry
  • University of Pennsylvania
  • Dana-Farber Cancer Institute
  • Harvard University
  • University of Minnesota Twin Cities
  • Broad Institute
  • Boston Children's Hospital

Research output: Contribution to journalArticlepeer-review

1069 Scopus citations

Abstract

Blocking Programmed Death-1 (PD-1) can reinvigorate exhausted CD8 Tcells (TEX) and improve control of chronic infections and cancer. However, whether blocking PD-1 can reprogram TEX into durable memory T cells (TMEM) is unclear. We found that reinvigoration of TEX in mice by PD-L1 blockade caused minimal memory development. After blockade, reinvigorated TEX became reexhausted if antigen concentration remained high and failed to become TMEM upon antigen clearance. TEX acquired an epigenetic profile distinct from that of effector T cells (TEFF) and TMEM cells that was minimally remodeled after PD-L1 blockade. This finding suggests that TEX are a distinct lineage of CD8 T cells. Nevertheless, PD-1 pathway blockade resulted in transcriptional rewiring and reengagement of effector circuitry in the TEX epigenetic landscape. These data indicate that epigenetic fate inflexibility may limit current immunotherapies.

Original languageEnglish
Pages (from-to)1160-1165
Number of pages6
JournalScience
Volume354
Issue number6316
DOIs
StatePublished - Dec 2 2016

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