Andri Miltiadous, P. Demetriou, M. Kyriakou, P. Gerasimou, George Herodotou, Agathi Elpidoforou, Yiannos Kyprianou, M. Iacovou, J. Chi, P. Costeas, G. Tanteles
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A de novo SFMBT1 pathogenic variant identified in a boy with Poland syndrome
Poland syndrome is a rare developmental disorder characterized by unilateral, complete or partial, absence of the pectoralis major (and often minor) muscle, accompanied with ipsilateral hand malformations. To date, no clear genetic cause has been associated with Poland syndrome, although familial cases have been reported. We report the employment of trio exome investigation and the identification of a heterozygous de novo pathogenic variant in the SFMBT1 gene, a transcription factor associated with transcriptional repression during development, in a 14-yr-old boy with Poland syndrome. We further demonstrate by means of cDNA sequencing and western blot analysis that this variant results in SFMBT1 exon 10 skipping and a lower concentration of the SFMBT1 wild-type protein. To our knowledge, the heterozygous pathogenic SFMBT1 variant identified in association with this condition is novel as it has not been elsewhere described in the literature and it can be incorporated to the limited reported cases published.
期刊介绍:
Cold Spring Harbor Molecular Case Studies is an open-access, peer-reviewed, international journal in the field of precision medicine. Articles in the journal present genomic and molecular analyses of individuals or cohorts alongside their clinical presentations and phenotypic information. The journal''s purpose is to rapidly share insights into disease development and treatment gained by application of genomics, proteomics, metabolomics, biomarker analysis, and other approaches. The journal covers the fields of cancer, complex diseases, monogenic disorders, neurological conditions, orphan diseases, infectious disease, gene therapy, and pharmacogenomics. It has a rapid peer-review process that is based on technical evaluation of the analyses performed, not the novelty of findings, and offers a swift, clear path to publication. The journal publishes: Research Reports presenting detailed case studies of individuals and small cohorts, Research Articles describing more extensive work using larger cohorts and/or functional analyses, Rapid Communications presenting the discovery of a novel variant and/or novel phenotype associated with a known disease gene, Rapid Cancer Communications presenting the discovery of a novel variant or combination of variants in a cancer type, Variant Discrepancy Resolution describing efforts to resolve differences or update variant interpretations in ClinVar through case-level data sharing, Follow-up Reports linked to previous observations, Plus Review Articles, Editorials, and Position Statements on best practices for research in precision medicine.