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SOPH syndrome in three affected individuals showing similarities with progeroid cutis laxa conditions in early infancy

Authors
  • Fischer-Zirnsak, Björn1, 2, 3
  • Koenig, Rainer4
  • Alisch, Franz1
  • Güneş, Nilay5
  • Hausser, Ingrid6
  • Saha, Namrata1, 2, 7, 8
  • Beck-Woedl, Stefanie9
  • Haack, Tobias B.9
  • Thiel, Christian10
  • Kamrath, Clemens11
  • Tüysüz, Beyhan5
  • Henning, Stephan12
  • Mundlos, Stefan1, 2, 3
  • Hoffmann, Katrin13
  • Horn, Denise1
  • Kornak, Uwe1, 2, 3
  • 1 Institut für Medizinische Genetik und Humangenetik, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany , Berlin (Germany)
  • 2 Max-Planck-Institut fuer Molekulare Genetik, FG Development & Disease, Berlin, Germany , Berlin (Germany)
  • 3 Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Berlin, Germany , Berlin (Germany)
  • 4 University of Frankfurt, Department of Human Genetics, Frankfurt, Germany , Frankfurt (Germany)
  • 5 Istanbul University-Cerrahpasa, Medical Faculty, Department of Pediatric Genetics, Istanbul, Turkey , Istanbul (Turkey)
  • 6 Heidelberg University Hopsital, Institute of Pathology, Heidelberg, Germany , Heidelberg (Germany)
  • 7 Charité-Universitaetsmedizin Berlin, Berlin-Brandenburg School for Regenerative Therapies, Berlin, Germany , Berlin (Germany)
  • 8 Max Planck International Research Network on Aging, Rostock, Germany , Rostock (Germany)
  • 9 University of Tuebingen, Institute of Medical Genetics and Applied Genomics, Tübingen, Germany , Tübingen (Germany)
  • 10 University Hospital Heidelberg, Center for Child and Adolescent Medicine, Department 1, Heidelberg, Germany , Heidelberg (Germany)
  • 11 Justus Liebig University, Division of Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, Giessen, Germany , Giessen (Germany)
  • 12 Kinderklinik, Charité-Universitätsmedizin Berlin, Berlin, Germany , Berlin (Germany)
  • 13 Martin Luther University Halle-Wittenberg, Institute for Human Genetics and Molecular Biology, Halle (Saale), Germany , Halle (Saale) (Germany)
Type
Published Article
Journal
Journal of Human Genetics
Publisher
Springer Nature
Publication Date
Apr 24, 2019
Volume
64
Issue
7
Pages
609–616
Identifiers
DOI: 10.1038/s10038-019-0602-8
Source
Springer Nature
License
Yellow

Abstract

Individuals affected with autosomal recessive cutis laxa type 2B and 3 usually show translucent skin with visible veins and abnormal elastic fibers, intrauterine and/or postnatal growth restriction and a typical triangular facial gestalt. Here we describe three unrelated individuals in whom such a cutis laxa syndrome was suspected, especially after electron microscopy revealed immature and less dense dermal elastic fibers in one of them. However, one of these children also displayed optic atrophy and two hypogammaglobulinemia. All had elevated liver enzymes and acute liver failure during febrile episodes leading to early demise in two of them. The only surviving patient had been treated with immunoglobulins. Through exome sequencing we identified mutations in NBAS, coding for a protein involved in Golgi-to-ER transport. NBAS deficiency causes several rare conditions ranging from isolated recurrent acute liver failure to a multisystem disorder mainly characterized by short stature, optic nerve atrophy and Pelger-Huët anomaly (SOPH). Since we subsequently verified Pelger-Huët anomaly in two of the patients the diagnosis SOPH syndrome was unequivocally proven. Our data show that SOPH syndrome can be regarded as a differential diagnosis for the progeroid forms of cutis laxa in early infancy and that possibly treatment of the hypogammaglobulinemia can be of high relevance for the prognosis.

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