The importance of managing the patient and not the gene: expanded phenotype of GLE1-associated arthrogryposis.

Published online

Journal Article

GLE1 encodes a protein important for mRNA export and appears to play roles in translation initiation and termination as well. Pathogenic variants in GLE1 mutations have been associated with lethal contracture syndrome and lethal arthrogryposis with anterior horn cell disease; phenotypes reported in individuals include fetal akinesia and a severe form of motor neuron disease, typically presenting with prenatal symptoms and perinatal lethality. In this article, we identified biallelic missense mutations in GLE1 by trio whole-exome sequencing in an individual affected with congenital motor weakness and contractures as well as feeding and respiratory difficulties. Muscle biopsy was consistent with anterior horn cell disease and supported the pathogenicity of the sequence variants. Importantly, this individual survived past the perinatal period with respiratory support and currently demonstrates age-appropriate cognition and slow but steady motor developmental progress. We propose that pathogenic variants in GLE1 can be associated with a nonperinatal lethal motor phenotype, and affected individuals can demonstrate motor skill progression, unlike prototypical anterior horn cell diseases such as spinal muscular atrophy.

Full Text

Duke Authors

Cited Authors

  • Tan, QK-G; McConkie-Rosell, A; Juusola, J; Gustafson, KE; Pizoli, CE; Buckley, AF; Jiang, Y-H

Published Date

  • November 2017

Published In

Volume / Issue

  • 3 / 6

PubMed ID

  • 28729373

Pubmed Central ID

  • 28729373

Electronic International Standard Serial Number (EISSN)

  • 2373-2873

Digital Object Identifier (DOI)

  • 10.1101/mcs.a002063

Language

  • eng

Conference Location

  • United States