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Potential regulatory function of human dendritic cells expressing indoleamine 2,3-dioxygenase

  • David H. Munn
  • , Madhav D. Sharma
  • , Jeffrey R. Lee
  • , Kanchan G. Jhaver
  • , Theodore S. Johnson
  • , Derin B. Keskin
  • , Brendan Marshall
  • , Phillip Chandler
  • , Scott J. Antonia
  • , Russell Burgess
  • , Craig L. Slingluff
  • , Andrew L. Mellor

Research output: Contribution to journalArticlepeer-review

Abstract

Antigen-presenting cells (APCS) can induce tolerance or immunity. We describe a subset of human APCs that express indoleamine 2,3-dioxygenase (IDO) and inhibit T cell proliferation in vitro. IDO-positive APCs constituted a discrete subset identified by coexpression of the cell-surface markers CD123 and CCR6. In the dendritic cell (DC) lineage, IDO-mediated suppressor activity was present in fully mature as well as immature CD123+ DCs. IDO+ DCs could also be readily detected in vivo, which suggests that these cells may represent a regulatory subset of APCs in humans.

Original languageEnglish (US)
Pages (from-to)1867-1870
Number of pages4
JournalScience
Volume297
Issue number5588
DOIs
StatePublished - Sep 13 2002

ASJC Scopus subject areas

  • General

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