Tryptophan catabolism generates autoimmune-preventive regulatory T cells

  • Francesca Fallarino
  • , Ursula Grohmann
  • , Sylvaine You
  • , Barbara Claire McGrath
  • , Douglas R. Cavener
  • , Carmine Vacca
  • , Ciriana Orabona
  • , Roberta Bianchi
  • , Maria L. Belladonna
  • , Claudia Volpi
  • , Maria C. Fioretti
  • , Paolo Puccetti

Research output: Contribution to journalArticlepeer-review

102 Scopus citations

Abstract

Tryptophan catabolism is a tolerogenic effector system in regulatory T cell function, yet the general mechanisms whereby tryptophan catabolism affects T cell responses remain unclear. We provide evidence that its effects include the emergence of a regulatory phenotype in naive CD4+CD25- cells via the general control non-depressing 2 (GCN2) protein kinase mediated induction of the forkhead transcription factor Foxp3. These cells are capable of effective control of diabetogenic T cells in vivo.

Original languageEnglish (US)
Pages (from-to)58-60
Number of pages3
JournalTransplant Immunology
Volume17
Issue number1
DOIs
StatePublished - Dec 2006

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology
  • Transplantation

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