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Defining trained immunity and its role in health and disease

  • Mihai G. Netea
  • , Jorge Domínguez-Andrés
  • , Luis B. Barreiro
  • , Triantafyllos Chavakis
  • , Maziar Divangahi
  • , Elaine Fuchs
  • , Leo A.B. Joosten
  • , Jos W.M. van der Meer
  • , Musa M. Mhlanga
  • , Willem J.M. Mulder
  • , Niels P. Riksen
  • , Andreas Schlitzer
  • , Joachim L. Schultze
  • , Christine Stabell Benn
  • , Joseph C. Sun
  • , Ramnik J. Xavier
  • , Eicke Latz

Research output: Contribution to journalReview articlepeer-review

2155 Scopus citations

Abstract

Immune memory is a defining feature of the acquired immune system, but activation of the innate immune system can also result in enhanced responsiveness to subsequent triggers. This process has been termed ‘trained immunity’, a de facto innate immune memory. Research in the past decade has pointed to the broad benefits of trained immunity for host defence but has also suggested potentially detrimental outcomes in immune-mediated and chronic inflammatory diseases. Here we define ‘trained immunity’ as a biological process and discuss the innate stimuli and the epigenetic and metabolic reprogramming events that shape the induction of trained immunity.

Original languageEnglish
Pages (from-to)375-388
Number of pages14
JournalNature Reviews Immunology
Volume20
Issue number6
DOIs
StatePublished - 1 Jun 2020

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