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Clinical MedicineIn-Press PreviewImmunologyInflammation Free access | 10.1172/JCI129301

Distinct interferon signatures and cytokine patterns define additional systemic autoinflammatory diseases

Adriana A. de Jesus, Yanfeng Hou, Stephen Brooks, Louise Malle, Angelique Biancotto, Yan Huang, Katherine R. Calvo, Bernadette Marrero, Susan Moir, Andrew J. Oler, Zuoming Deng, Gina A. Montealegre Sanchez, Amina Ahmed, Eric Allenspach, Bita Arabshahi, Edward Behrens, Susanne Benseler, Liliana Bezrodnik, Sharon Bout-Tabaku, AnneMarie C. Brescia, Diane Brown, Jon M. Burnham, María Soledad Caldirola, Ruy Carrasco, Alice Y. Chan, Rolando Cimaz, Paul Dancey, Jason Dare, Marietta DeGuzman, Victoria Dimitriades, Ian Ferguson, Polly Ferguson, Laura Finn, Marco Gattorno, Alexei A. Grom, Eric P. Hanson, Philip J. Hashkes, Christian M. Hedrich, Ronit Herzog, Gerd Horneff, Rita Jerath, Elizabeth Kessler, Hanna Kim, Daniel J. Kingsbury, Ronald M. Laxer, Pui Y. Lee, Min Ae Lee-Kirsch, Laura Lewandowski, Suzanne Li, Vibke Lilleby, Vafa Mammadova, Lakshmi N. Moorthy, Gulnara Nasrullayeva, Kathleen M. O’Neil, Karen Onel, Seza Ozen, Nancy Pan, Pascal Pillet, Daniela G.P. Piotto, Marilynn G. Punaro, Andreas Reiff, Adam Reinhardt, Lisa G. Rider, Rafael Rivas-Chacon, Tova Ronis, Angela Rösen-Wolff, Johannes Roth, Natasha Mckerran Ruth, Marite Rygg, Heinrike Schmeling, Grant Schulert, Christiaan Scott, Gisela Seminario, Andrew Shulman, Vidya Sivaraman, Mary Beth Son, Yuriy Stepanovskyy, Elizabeth Stringer, Sara Taber, Maria Teresa Terreri, Cynthia Tifft, Troy Torgerson, Laura Tosi, Annet Van Royen-Kerkhof, Theresa Wampler Muskardin, Scott W. Canna, and Raphaela Goldbach-Mansky

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First published December 24, 2019 - More info

J Clin Invest. https://doi.org/10.1172/JCI129301.
Copyright © 2019, American Society for Clinical Investigation
First published December 24, 2019 - Version history
Abstract

BACKGROUND. Undifferentiated systemic autoinflammatory diseases (USAID) present diagnostic and therapeutic challenges. Chronic interferon (IFN) signaling and cytokine dysregulation may identify diseases with available targeted treatments.

METHODS. Sixty-six consecutively-referred USAID patients underwent standardized evaluation of Type-I IFN-response-gene-signature (IRG-S); cytokine profiling, and genetic evaluation by next-generation sequencing.

RESULTS. Thirty-six USAID patients (55%) had elevated IRG-S. Neutrophilic panniculitis (40% vs 0%), basal ganglia calcifications (46% vs 0%), interstitial lung disease (47% vs 5%), and myositis (60% vs 10%) were more prevalent in patients with elevated IRG-S. Moderate IRG-S elevation and highly-elevated serum IL-18 distinguished eight patients with pulmonary alveolar proteinosis (PAP) and recurrent macrophage activation syndrome (MAS). Among patients with panniculitis and progressive cytopenias, two patients were compound heterozygous for novel LRBA mutations, four patients harbored novel splice variants in IKBKG/NEMO, and six patients had de novo frameshift mutations in SAMD9L. Of additional 12 patients with elevated IRG-S and CANDLE-, SAVI- or Aicardi-Goutières-Syndrome (AGS)-like phenotypes, five patients carried mutations in either SAMHD1, TREX1, PSMB8 or PSMG2. Two patients had anti-MDA5 autoantibody-positive juvenile dermatomyositis, and seven could not be classified. Patients with LRBA, IKBKG/NEMO and SAMD9L mutations showed a pattern of IRG elevation that suggests prominent NF-κB activation different from the canonical interferonopathies CANDLE, SAVI and AGS.

CONCLUSIONS. In patients with elevated IRG-S, we identified characteristic clinical features and 3 additional autoinflammatory diseases: IL-18-mediated PAP and recurrent MAS (IL-18PAP-MAS), NEMO∆5-associated autoinflammatory syndrome (NEMO-NDAS), and SAMD9L-associated autoinflammatory disease (SAMD9L-SAAD). The IRG-S expands the diagnostic armamentarium in evaluating USAIDs and points to different pathways regulating IRG expression.

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