Complex craniosynostosis is associated with the 2p15p16.1 microdeletion syndrome

Joyce M G Florisson, Irene M J Mathijssen, Belinda Dumee, Jeannette A M Hoogeboom, Pino J Poddighe, Ben A Oostra, Jean Pierre Frijns, Linda Koster, Annelies de Klein, Bert Eussen, Bert B A de Vries, Sigrid Swagemakers, Peter J van der Spek, Annemieke J M H Verkerk*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

17 Citations (Scopus)

Abstract

In a screening project of patients with (complex) craniosynostosis using genomic arrays, we identified two patients with craniosynostosis and microcephaly with a deletion in the 2p15p16.1 chromosomal region. This region has been associated with a new microdeletion syndrome, for which patients have various features in common, including microcephaly and intellectual disability. Deletions were identified using Affymetrix 250K SNP array and further characterized by fluorescence in situ hybridization (FISH) analysis and qPCR. The deletions in our two patients overlapped within the 2p15p16.1 microdeletion syndrome area and were 6.8 and 6.9 Mb in size, respectively. FISH and qPCR confirmed the presence of only one copy in this region. Finemapping of the breakpoints indicated precise borders in our patients and were further finemapped in two other previously reported patients. Clinical features of patients with deletions in the 2p15p16.1 region vary. Including data from our patients, now eight out of nine reported patients have microcephaly, one of the major features, and all had intellectual disability. The current reported two patients add different forms of craniosynostosis to the clinical spectrum of this recently recognized microdeletion syndrome.

Original languageEnglish
Pages (from-to)244-253
Number of pages10
JournalAmerican Journal of Medical Genetics Part A
Volume161A
Issue number2
DOIs
Publication statusPublished - 9 Feb 2013

Bibliographical note

Copyright © 2013 Wiley Periodicals, Inc.

Research programs

  • EMC MGC-02-02-01
  • EMC MGC-02-96-01
  • EMC NIHES-01-50-01-A

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