Compound heterozygosity for two variants in BMP5 in human skeletal dysostosis with atrioventricular septal defect

Pernille Axél Gregersen, Anna Hammarsjö, Lise Graversen, Nis Brix, Hillevi Lindelöf, Uffe Birk Jensen, Stense Farholt, Sune Rubak, Jesper Bjerre, Serena G Piticchio, Thorkild Terkelsen, Gen Nishimura, Michel Bach Hellfritzsch, Giedre Grigelioniene

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Abstract

The growth and development of the skeleton is regulated by bone morphogenetic proteins of which several are linked to genetic skeletal disorders. So far, no human skeletal malformations have been associated with variants in BMP5. Here, we report a patient with biallelic loss of function variants in BMP5 and a syndromic phenotype including skeletal dysostosis, dysmorphic features, hypermobility, laryngo-tracheo-bronchomalacia and atrioventricular septal defect. We discuss the phenotype in relation to the known tissue-specific expression of Bmp5 and similar morphological abnormalities previously reported in experimental animal models. Our findings suggest a new association between BMP5 variants and a range of developmental anomalies, involving ears, heart and skeleton, thereby increasing understanding of BMP5's role in human development.

Original languageEnglish
JournalClinical Genetics
Volume107
Issue1
Pages (from-to)78-82
Number of pages5
ISSN0009-9163
DOIs
Publication statusPublished - Jan 2025

Keywords

  • BMP5
  • cardiac malformation
  • rare disease
  • skeletal dysostosis
  • skeletal dysplasia

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