Human autoinflammatory disease reveals ELF4 as a transcriptional regulator of inflammation

Paul M. Tyler, Molly L. Bucklin, Mengting Zhao, Timothy J. Maher, Andrew J. Rice, Weizhen Ji, Neil Warner, Jie Pan, Raffaella Morotti, Paul McCarthy, Anne Griffiths, Annemarie M.C. van Rossum, Iris H.I.M. Hollink, Virgil A.S.H. Dalm, Jason Catanzaro, Saquib A. Lakhani, Aleixo M. Muise, Carrie L. Lucas*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)

Abstract

Transcription factors specialized to limit the destructive potential of inflammatory immune cells remain ill-defined. We discovered loss-of-function variants in the X-linked ETS transcription factor gene ELF4 in multiple unrelated male patients with early onset mucosal autoinflammation and inflammatory bowel disease (IBD) characteristics, including fevers and ulcers that responded to interleukin-1 (IL-1), tumor necrosis factor or IL-12p40 blockade. Using cells from patients and newly generated mouse models, we uncovered ELF4-mutant macrophages having hyperinflammatory responses to a range of innate stimuli. In mouse macrophages, Elf4 both sustained the expression of anti-inflammatory genes, such as Il1rn, and limited the upregulation of inflammation amplifiers, including S100A8, Lcn2, Trem1 and neutrophil chemoattractants. Blockade of Trem1 reversed inflammation and intestine pathology after in vivo lipopolysaccharide challenge in mice carrying patient-derived variants in Elf4. Thus, ELF4 restrains inflammation and protects against mucosal disease, a discovery with broad translational relevance for human inflammatory disorders such as IBD.

Original languageEnglish
Pages (from-to)1118-1126
Number of pages9
JournalNature Immunology
Volume22
Issue number9
DOIs
Publication statusPublished - 29 Jul 2021

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