Artigo Acesso aberto Produção Nacional Revisado por pares

Characterization of human disease phenotypes associated with mutations in TREX1 , RNASEH2A , RNASEH2B , RNASEH2C , SAMHD1 , ADAR , and IFIH1

2015; Wiley; Volume: 167; Issue: 2 Linguagem: Inglês

10.1002/ajmg.a.36887

ISSN

1552-4833

Autores

Yanick J. Crow, Diana Chase, Johanna L. Schmidt, Marcin Szynkiewicz, Gabriella Forte, Hannah Gornall, Anthony Oojageer, Beverley Anderson, Amy Pizzino, Guy Helman, Mohamed S. Abdel‐Hamid, Ghada M.H. Abdel‐Salam, Sam Ackroyd, Alec Aeby, Guillermo Agosta, Catherine S. W. Albin, Stavit A. Shalev, Montse Arellano, Giada Ariaudo, Vijay Aswani, Riyana Babul‐Hirji, Eileen Baildam, Nadia Bahi‐Buisson, Kathryn Bailey, Christine Barnérias, Magalie Barth, Roberta Battini, Michael W. Beresford, Geneviève Bernard, Marika Bianchi, Thierry Billette de Villemeur, Edward Blair, Miriam Bloom, Alberto Burlina, Maria Luisa Carpanelli, Daniel R. Carvalho, Manuel Castro‐Gago, Anna Cavallini, Cristina Cereda, Kate Chandler, David Chitayat, Abigail E. Collins, Concepción Sierra Córcoles, Nuno Cordeiro, Giovanni Crichiutti, Lyvia Dabydeen, Russell C. Dale, Stefano D’Arrigo, Christian G E L De Goede, Corinne De Laet, Liesbeth M. H. De Waele, Inés María Denzler, Isabelle Desguerre, Koenraad Devriendt, Maja Di Rocco, Michael Fahey, Elisa Fazzi, Colin D. Ferrie, António Figueiredo, Blanca Gener, Cyril Goizet, Nirmala Gowrinathan, Kalpana Gowrishankar, Donncha Hanrahan, Bertrand Isidor, Bülent Kara, Naz Khan, Mary D. King, Edwin P. Kirk, Ram Kumar, Lieven Lagae, P. Landrieu, Heinz Lauffer, Vincent Laugel, Roberta La Piana, Ming Lim, Jean‐Pierre Lin, Tarja Linnankivi, Mark T. Mackay, Daphna Marom, Charles Marques Lourenço, Shane McKee, Isabella Moroni, Jenny E.V. Morton, Marie‐Laure Moutard, Kevin Murray, Rima Nabbout, Sheela Nampoothiri, Noemí Núñez-Enamorado, P.J. Oades, Ivana Olivieri, John R. Østergaard, Belén Pérez‐Dueñas, Julie Prendiville, Venkateswaran Ramesh, Magnhild Rasmussen, Luc Régal, Federica Ricci, Marlène Rio, Diana Rodriguez, Agathe Roubertie, E. Salvatici, Karin Segers, G Sinha, Doriette Soler, Ronen Spiegel, Tommy Stödberg, Rachel Straussberg, Kathryn J. Swoboda, Mohnish Suri, Uta Tacke, Tiong Yang Tan, Johann te Water Naudé, Keng Wee Teik, Maya Thomas, Marianne Till, Davide Tonduti, Enza Maria Valente, Rudy N. Van Coster, Marjo S. van der Knaap, Grace Vassallo, Raymon Vijzelaar, Julie Vogt, Geoffrey Wallace, Evangeline Wassmer, Hannah J. Webb, William Whitehouse, Robyn Whitney, Maha S. Zaki, Sameer M. Zuberi, John H. Livingston, Flore Rozenberg, Pierre Lebon, Adeline Vanderver, Simona Orcesi, Gillian Rice,

Tópico(s)

Inflammasome and immune disorders

Resumo

Aicardi–Goutières syndrome is an inflammatory disease occurring due to mutations in any of TREX1 , RNASEH2A , RNASEH2B , RNASEH2C , SAMHD1 , ADAR or IFIH1 . We report on 374 patients from 299 families with mutations in these seven genes. Most patients conformed to one of two fairly stereotyped clinical profiles; either exhibiting an in utero disease‐onset (74 patients; 22.8% of all patients where data were available), or a post‐natal presentation, usually within the first year of life (223 patients; 68.6%), characterized by a sub‐acute encephalopathy and a loss of previously acquired skills. Other clinically distinct phenotypes were also observed; particularly, bilateral striatal necrosis (13 patients; 3.6%) and non‐syndromic spastic paraparesis (12 patients; 3.4%). We recorded 69 deaths (19.3% of patients with follow‐up data). Of 285 patients for whom data were available, 210 (73.7%) were profoundly disabled, with no useful motor, speech and intellectual function. Chilblains, glaucoma, hypothyroidism, cardiomyopathy, intracerebral vasculitis, peripheral neuropathy, bowel inflammation and systemic lupus erythematosus were seen frequently enough to be confirmed as real associations with the Aicardi‐Goutieres syndrome phenotype. We observed a robust relationship between mutations in all seven genes with increased type I interferon activity in cerebrospinal fluid and serum, and the increased expression of interferon‐stimulated gene transcripts in peripheral blood. We recorded a positive correlation between the level of cerebrospinal fluid interferon activity assayed within one year of disease presentation and the degree of subsequent disability. Interferon‐stimulated gene transcripts remained high in most patients, indicating an ongoing disease process. On the basis of substantial morbidity and mortality, our data highlight the urgent need to define coherent treatment strategies for the phenotypes associated with mutations in the Aicardi–Goutières syndrome‐related genes. Our findings also make it clear that a window of therapeutic opportunity exists relevant to the majority of affected patients and indicate that the assessment of type I interferon activity might serve as a useful biomarker in future clinical trials. © 2015 Wiley Periodicals, Inc.

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