Title |
Familial autoinflammation with neutrophilic dermatosis reveals a regulatory mechanism of pyrin activation
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Published in |
Science Translational Medicine, March 2016
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DOI | 10.1126/scitranslmed.aaf1471 |
Pubmed ID | |
Authors |
Seth L Masters, Vasiliki Lagou, Isabelle Jéru, Paul J Baker, Lien Van Eyck, David A Parry, Dylan Lawless, Dominic De Nardo, Josselyn E Garcia-Perez, Laura F Dagley, Caroline L Holley, James Dooley, Fiona Moghaddas, Emanuela Pasciuto, Pierre-Yves Jeandel, Raf Sciot, Dena Lyras, Andrew I Webb, Sandra E Nicholson, Lien De Somer, Erika van Nieuwenhove, Julia Ruuth-Praz, Bruno Copin, Emmanuelle Cochet, Myrna Medlej-Hashim, Andre Megarbane, Kate Schroder, Sinisa Savic, An Goris, Serge Amselem, Carine Wouters, Adrian Liston |
Abstract |
Pyrin responds to pathogen signals and loss of cellular homeostasis by forming an inflammasome complex that drives the cleavage and secretion of interleukin-1β (IL-1β). Mutations in the B30.2/SPRY domain cause pathogen-independent activation of pyrin and are responsible for the autoinflammatory disease familial Mediterranean fever (FMF). We studied a family with a dominantly inherited autoinflammatory disease, distinct from FMF, characterized by childhood-onset recurrent episodes of neutrophilic dermatosis, fever, elevated acute-phase reactants, arthralgia, and myalgia/myositis. The disease was caused by a mutation inMEFV, the gene encoding pyrin (S242R). The mutation results in the loss of a 14-3-3 binding motif at phosphorylated S242, which was not perturbed by FMF mutations in the B30.2/SPRY domain. However, loss of both S242 phosphorylation and 14-3-3 binding was observed for bacterial effectors that activate the pyrin inflammasome, such asClostridiumdifficiletoxin B (TcdB). The S242R mutation thus recapitulated the effect of pathogen sensing, triggering inflammasome activation and IL-1β production. Successful therapy targeting IL-1β has been initiated in one patient, resolving pyrin-associated autoinflammation with neutrophilic dermatosis. This disease provides evidence that a guard-like mechanism of pyrin regulation, originally identified for Nod-like receptors in plant innate immunity, also exists in humans. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 4 | 21% |
France | 1 | 5% |
Ireland | 1 | 5% |
Australia | 1 | 5% |
United Kingdom | 1 | 5% |
Unknown | 11 | 58% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 17 | 89% |
Science communicators (journalists, bloggers, editors) | 1 | 5% |
Scientists | 1 | 5% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 1 | <1% |
Norway | 1 | <1% |
Unknown | 171 | 99% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 31 | 18% |
Researcher | 29 | 17% |
Other | 16 | 9% |
Student > Master | 14 | 8% |
Student > Bachelor | 13 | 8% |
Other | 37 | 21% |
Unknown | 33 | 19% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 42 | 24% |
Biochemistry, Genetics and Molecular Biology | 30 | 17% |
Agricultural and Biological Sciences | 26 | 15% |
Immunology and Microbiology | 25 | 14% |
Neuroscience | 4 | 2% |
Other | 5 | 3% |
Unknown | 41 | 24% |