Developmental Outcomes of Aicardi Goutières Syndrome

Laura Adang, Francesco Gavazzi, Micaela De Simone, Elisa Fazzi, Jessica Galli, Jamie Koh, Julia Kramer-Golinkoff, Valentina De Giorgis, Simona Orcesi, Kyle Peer, Nicole Ulrick, Sarah Woidill, Justine Shults, Adeline Vanderver

Research output: Contribution to journalArticlepeer-review

Abstract

Aicardi Goutières syndrome is a monogenic interferonopathy caused by abnormalities in the intracellular nucleic acid sensing machinery (TREX1, RNASEH2A, RNASEH2B, RNASEH2C, SAMHD1, ADAR1, or IFIH1). Most individuals affected by Aicardi Goutières syndrome exhibit some degree of neurologic impairment, from spastic paraparesis with relatively preserved cognition to tetraparesis and severe intellectual disability. Because of this heterogeneity, it is important to fully characterize the developmental trajectory in Aicardi Goutières syndrome. To characterize the clinical presentation in Aicardi Goutières syndrome, early features were collected from an international cohort of children (n = 100) with genetically confirmed Aicardi Goutières syndrome. There was a heterogeneous age of onset, with overlapping clusters of presenting symptoms: altered mental status, systemic inflammatory symptoms, and acute neurologic disability. Next, we created genotype-specific developmental milestone acquisition curves. Individuals with microcephaly or TREX1-related Aicardi Goutières syndrome secondary were the most severely affected and less likely to reach milestones, including head control, sitting, and nonspecific mama/dada. Individuals affected by SAMHD1, IFIH1, and ADAR attained the most advanced milestones, with 44% achieving verbal communication and 31% independently ambulating. Retrospective function scales (Gross Motor Function Classification System, Manual Ability Classification System, and Communication Function Classification System) demonstrated that two-thirds of the Aicardi Goutières syndrome population are severely affected. Our results suggest multifactorial influences on developmental trajectory, including a strong contribution from genotype. Further studies are needed to identify the additional factors that influence overall outcomes to better counsel families and to design clinical trials with appropriate clinical endpoints.

Original languageEnglish
Pages (from-to)7-16
Number of pages10
JournalJournal of Child Neurology
Early online dateSep 27 2019
DOIs
Publication statusPublished - Jan 2020

Fingerprint Dive into the research topics of 'Developmental Outcomes of Aicardi Goutières Syndrome'. Together they form a unique fingerprint.

Cite this