Dissection of the MYCN locus in Feingold syndrome and isolated oesophageal atresia

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Abstract

Feingold syndrome (FS) is a syndromic microcephaly entity for which MYCN is the major disease-causing gene. We studied the expression pattern of MYCN at different stages of human embryonic development and collected a series of 17 FS and 12 isolated oesophageal atresia (IOA) cases. An MYCN gene deletion/mutation was identified in 47% of FS cases exclusively. We hypothesized that mutations or deletions of highly conserved non-coding elements (HCNEs) at the MYCN locus could lead to its misregulation and thereby to FS and/or IOA. We subsequently sequenced five HCNEs at the MYCN locus and designed a high-density tiling path comparative genomic hybridization array of 3.3Mb at the MYCN locus. We found no mutations or deletions in this region, supporting the hypothesis of genetic heterogeneity in FS. © 2011 Macmillan Publishers Limited.

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Cognet, M., Nougayrede, A., Malan, V., Callier, P., Cretolle, C., Faivre, L., … De Pontual, L. (2011). Dissection of the MYCN locus in Feingold syndrome and isolated oesophageal atresia. European Journal of Human Genetics, 19(5), 602–606. https://doi.org/10.1038/ejhg.2010.225

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