loading page

Variants in FGF10 cause isolated neonatal lung developmental disorder
  • +15
  • Katharina Schuetz,
  • Axel Schmidt,
  • Nicolaus Schwerk,
  • Diane Renz,
  • Benedicte Gerard,
  • Elise Schaefer,
  • Maria Cristina Antal,
  • Sophia Peters,
  • Matthias Griese,
  • Christina Katharina Rapp,
  • Hartmut Engels,
  • Kirsten Cremer,
  • Anke Katharina Bergmann,
  • Gunnar Schmidt,
  • Bernd Auber,
  • Jan C. Kamp,
  • Florian Laenger,
  • Sandra von Hardenberg
Katharina Schuetz
Medizinische Hochschule Hannover Klinik fur Padiatrische Pneumologie Allergologie und Neonatologie

Corresponding Author:schuetz.katharina@mh-hannover.de

Author Profile
Axel Schmidt
Universitatsklinikum Bonn Institut fur Humangenetik
Author Profile
Nicolaus Schwerk
Medizinische Hochschule Hannover Klinik fur Padiatrische Pneumologie Allergologie und Neonatologie
Author Profile
Diane Renz
Hannover Medical School
Author Profile
Benedicte Gerard
Hopital Universitaire Robert-Debre Unite fonctionnelle de genetique clinique
Author Profile
Elise Schaefer
Hopital Universitaire Robert-Debre Unite fonctionnelle de genetique clinique
Author Profile
Maria Cristina Antal
Les Hopitaux Universitaires de Strasbourg Hopital de Hautepierre
Author Profile
Sophia Peters
Universitatsklinikum Bonn Institut fur Humangenetik
Author Profile
Matthias Griese
Dr von Haunersches Kinderspital Kinderklinik und Kinderpoliklinik der Ludwig Maximilian Universitat Munchen
Author Profile
Christina Katharina Rapp
Dr von Haunersches Kinderspital Kinderklinik und Kinderpoliklinik der Ludwig Maximilian Universitat Munchen
Author Profile
Hartmut Engels
Universitatsklinikum Bonn Institut fur Humangenetik
Author Profile
Kirsten Cremer
Universitatsklinikum Bonn Institut fur Humangenetik
Author Profile
Anke Katharina Bergmann
Hannover Medical School
Author Profile
Gunnar Schmidt
Hannover Medical School
Author Profile
Bernd Auber
Hannover Medical School
Author Profile
Jan C. Kamp
Deutsches Zentrum fur Lungenforschung e V
Author Profile
Florian Laenger
Medizinische Hochschule Hannover Institut fur Pathologie
Author Profile
Sandra von Hardenberg
Hannover Medical School
Author Profile

Abstract

Fibroblast growth factor 10 (FGF10) is a signaling molecule with a well-established role for lung branching morphogenesis. Rare heterozygous, deleterious variants in the FGF10 gene are known causes of the lacrimo-auriculo-dento-digital (LADD) syndrome as well as aplasia of lacrimal and salivary glands (ALSG). Previous studies indicate that pathogenic variants in FGF10 can cause lethal human developmental disorders of the lung, but reports on diffuse lung disease caused by pathogenic variants in the FGF10 gene are lacking. We describe four children with postnatal onset of severe diffuse lung disease and heterozygous variants in FGF10, each detected by whole exome or whole genome sequencing. All children presented with postnatal respiratory failure. Two children died within the first 2 days of life, one patient died at age of 12 years and one patient is alive at age of six years, but still symptomatic. One patient presented signs of severe dental caries suggestive for ALSG or LADD-syndrome. Histopathological analysis of lung biopies from the two children with early postpartum demise revealed diffuse developmental disorder representing acinar dysplasia. Sequential biopsies of the child with survival until the age of 12 years revealed alveolar simplification and progressive interstitial fibrosis. Our report extends the phenotype of FGF10-related disorders to diffuse developmental disorders of the lung and early onset lung fibrosis. Therefore, FGF10-related disorder should be considered even without previously described syndromic stigmata in children with postnatal respiratory distress, not only when leading to death in the neonatal period but also in case of persistent respiratory complaints.
22 May 2023Submitted to Pediatric Pulmonology
23 May 2023Submission Checks Completed
23 May 2023Assigned to Editor
23 May 2023Review(s) Completed, Editorial Evaluation Pending
29 May 2023Reviewer(s) Assigned
20 Jun 2023Editorial Decision: Revise Minor
12 Jul 20231st Revision Received
18 Jul 2023Submission Checks Completed
18 Jul 2023Assigned to Editor
18 Jul 2023Reviewer(s) Assigned
18 Jul 2023Review(s) Completed, Editorial Evaluation Pending
24 Jul 2023Editorial Decision: Accept