Open Access

Genetic and phenotypic continuum of HOXA genes: A case with double HOXA9/HOXA13 mutations

  • Authors:
    • Hager Jaouadi
    • Alexis Theron
    • Giulia Norscini
    • Jean-François Avierinos
    • Stéphane Zaffran
  • View Affiliations

  • Published online on: January 27, 2023     https://doi.org/10.3892/mmr.2023.12946
  • Article Number: 59
  • Copyright: © Jaouadi et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The HOXA genes cluster plays a key role in embryologic development. Mutations in HOXA genes have been linked to different human phenotypes, including developmental delay, limb anomalies, and urogenital malformations. The present study reported a clinical and genetic investigation of a female patient with polymalformative syndrome including left arm agenesis, bicornuate uterus and bicuspid aortic valve. Using whole exome sequencing, two heterozygous missense variants were identified. Of these, one was a novel variant in the HOXA13 gene [p.(Tyr290Ser)] and the second a heterozygous variant in the HOXA9 gene [p.(Ala102Pro)]. To the best of our knowledge, this is the first association of HOXA9/HOXA13 point mutations linked to a syndromic case. In conclusion, the present study suggested that the phenotypic spectrum of vertebral anomalies, anal atresia, cardiac defects, tracheo‑esophageal fistula, renal anomalies and limb abnormalities/hand‑foot‑genital syndrome may be attributable to the combination of different HOXA variants, particularly in patients with a severe clinical presentation. The current report contributed as well to the molecular understanding of HOXA genes‑related phenotypes via the identification of novel variant and genes associations.
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March-2023
Volume 27 Issue 3

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Jaouadi H, Theron A, Norscini G, Avierinos J and Zaffran S: Genetic and phenotypic continuum of HOXA genes: A case with double HOXA9/HOXA13 mutations. Mol Med Rep 27: 59, 2023.
APA
Jaouadi, H., Theron, A., Norscini, G., Avierinos, J., & Zaffran, S. (2023). Genetic and phenotypic continuum of HOXA genes: A case with double HOXA9/HOXA13 mutations. Molecular Medicine Reports, 27, 59. https://doi.org/10.3892/mmr.2023.12946
MLA
Jaouadi, H., Theron, A., Norscini, G., Avierinos, J., Zaffran, S."Genetic and phenotypic continuum of HOXA genes: A case with double HOXA9/HOXA13 mutations". Molecular Medicine Reports 27.3 (2023): 59.
Chicago
Jaouadi, H., Theron, A., Norscini, G., Avierinos, J., Zaffran, S."Genetic and phenotypic continuum of HOXA genes: A case with double HOXA9/HOXA13 mutations". Molecular Medicine Reports 27, no. 3 (2023): 59. https://doi.org/10.3892/mmr.2023.12946