Cited by 124Craniofacial Disorders and TreatmentsGenomics and Rare DiseasesCongenital limb and hand anomalies

Evidence for digenic inheritance in some cases of Antley-Bixler syndrome?

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Reardon, William, Smith, Anne, Honour, John W, Hindmarsh, Peter, Das, Debipriya, Rumsby, Gill, Nelson, Isabelle, Malcolm, Sue +9 more·2000·Journal of Medical Genetics

Abstract

The Antley-Bixler syndrome has been thought to be caused by an autosomal recessive gene. However, patients with this phenotype have been reported with a new dominant mutation at the FGFR2 locus as well as in the offspring of mothers taking the antifungal agent fluconazole during early pregnancy. In addition to the craniosynostosis and joint ankylosis which are the clinical hallmarks of the condition, many patients, especially females, have genital abnormalities. We now report abnormalities of steroid biogenesis in seven of 16 patients with an Antley-Bixler phenotype. Additionally, we identify FGFR2 mutations in seven of these 16 patients, including one patient with abnormal steroidogenesis. These findings, suggesting that some cases of Antley-Bixler syndrome are the outcome of two distinct genetic events, allow a hypothesis to be formulated under which we may explain all the differing and seemingly contradictory circumstances in which the Antley-Bixler phenotype has been recognised.

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Crossref · 10.1136/jmg.37.1.26

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  • In 1985, Peterson RE et al. described a case of congenital adrenal hyperplasia with combined features of 21-hydroxylase deficiency and 17α-hydroxylase deficiency, yet no pathogenic variants were identified in CYP21A2 or CYP17A1.

    “In 1985, Peterson RE et al. described a case of congenital adrenal hyperplasia (CAH) exhibiting combined features of 21-hydroxylase deficiency (21-OHD) and 17α-hydroxylase deficiency (17-OHD), yet no pathogenic variants were identified in CYP21A2 or CYP17A1 (3, 56).”

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Authors
Reardon, W., Smith, A., Honour, J. W., Hindmarsh, P., Das, D., Rumsby, G., Nelson, I., Malcolm, S., Adès, L., Sillence, D., Kumar, D., DeLozier-Blanchet, C., McKee, S., Kelly, T., McKeehan, W. L., Baraitser, M., & Winter, R. M.
Affiliations
University of Geneva (CH)
Corresponding author
Reardon, William
Venue
Journal of Medical Genetics
Publisher
BMJ
Published
2000-01-01
Volume
37
Issue
1
Pages
26-32
ISSN
  • 0022-2593 (ISSN-L)
  • 1468-6244
OpenAlex
W2101981888
Cited by
123
References
66
Citations by year
2026: 2 · 2025: 1 · 2024: 2 · 2023: 5 · 2022: 2 · 2019: 1 · 2018: 5 · 2017: 5 · 2016: 3 · 2015: 3 · 2014: 3 · 2013: 7 · 2012: 2
FWCI
3.90
Type
journal article
Language
en
Open access
Locations
  • Journal of Medical Genetics (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Craniofacial Disorders and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Developmental Biology › Congenital limb and hand anomalies
Keywords
Antley-Bixler syndrome, digenic inheritance, FGFR2 mutations, autosomal dominant inheritance, autosomal recessive inheritance, congenital adrenal hyperplasia, craniosynostosis, joint ankylosis, genital anomalies, fluconazole, genotype-phenotype correlation
MeSH terms
Abnormalities, Drug-Induced, Abnormalities, Multiple, Ankle Joint, Ankylosis, Craniosynostoses, Eye Abnormalities, Female, Genitalia, Female, Humans, Infant, Karyotyping, Male, Pregnancy, Prenatal Exposure Delayed Effects, Sex Characteristics, Syndrome, Fluconazole, Receptors, Fibroblast Growth Factor, Receptor Protein-Tyrosine Kinases, Receptor, Fibroblast Growth Factor, Type 2

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