EGFR mutations cause a lethal syndrome of epithelial dysfunction with progeroid features

Rebecca Ganetzky, Erin Finn, Atrish Bagchi, Ornella Zollo, Laura Conlin, Matthew Deardorff, Margaret Harr, Michael A. Simpson, John A. McGrath, Elaine Zackai, Mark A. Lemmon, Neal Sondheimer (Lead / Corresponding author)

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    5 Citations (Scopus)

    Abstract

    The epidermal growth factor receptor (EGFR) is part of a large family of receptors required for communicating extracellular signals through internal tyrosine kinases. Epidermal growth factor (EGF) signaling is required for tissue development, whereas constitutive activation of this signaling pathway is associated with oncogenic transformation. We identified homozygous c.1283G>A (p.Gly428Asp) mutations in the extracellular domain of EGFR in two siblings. The children were born prematurely, had abnormalities in skin and hair, suffered multisystem organ failure, and died in the neonatal period from intestinal perforation. EGF failed to induce mutated receptor phosphorylation in patient-derived fibroblasts and activation of downstream targets was suppressed. The heterologously expressed extracellular domain was impaired in stability and the binding of EGF. Cells from the affected patient undergo early senescence with accelerated expression of β-galactosidase and shortened telomeres at all passages when compared to controls. A comparison of homozygous inherited regions from a separate report of a patient from the same ethnic background and EGFR genotype confirms the pathogenicity of EGFR mutations in congenital disease.

    Original languageEnglish
    Pages (from-to)452-458
    Number of pages7
    JournalMolecular Genetics and Genomic Medicine
    Volume3
    Issue number5
    DOIs
    Publication statusPublished - Sep 2015

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  • Cite this

    Ganetzky, R., Finn, E., Bagchi, A., Zollo, O., Conlin, L., Deardorff, M., Harr, M., Simpson, M. A., McGrath, J. A., Zackai, E., Lemmon, M. A., & Sondheimer, N. (2015). EGFR mutations cause a lethal syndrome of epithelial dysfunction with progeroid features. Molecular Genetics and Genomic Medicine, 3(5), 452-458. https://doi.org/10.1002/mgg3.156