Case of interstitial 12q deletion in association with Wilms tumor

A 14‐month‐old boy presenting with Wilms tumor (WT) was found to have a small de novo deletion of the long arm of chromosome 12 (12q11‐12q13.11). Microsatellite analysis of this region from constitutional DNA showed that the paternal allele was absent between the markers D12S331 and D12S1713 (inclus...

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Bibliographic Details
Published in:American journal of medical genetics 2001-12, Vol.104 (3), p.246-249
Main Authors: Rapley, Elizabeth A., Hargrave, Darren, Persinguhe, Nina, Barfoot, Rita, Moore, Isobel, Radford, Martin, Stratton, Michael R., Rahman, Nazneen, Pritchard-Jones, Kathy
Format: Article
Language:English
Subjects:
Biological and medical sciences
chromosome 12 deletion
Chromosome aberrations
Chromosome Deletion
Chromosomes, Human, Pair 12 - genetics
DNA - genetics
Family Health
Female
Genotype
Humans
Infant
Lod Score
Male
Medical genetics
Medical sciences
Microsatellite Repeats
Wilms tumor
Wilms Tumor - genetics
Wilms Tumor - pathology
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Summary:A 14‐month‐old boy presenting with Wilms tumor (WT) was found to have a small de novo deletion of the long arm of chromosome 12 (12q11‐12q13.11). Microsatellite analysis of this region from constitutional DNA showed that the paternal allele was absent between the markers D12S331 and D12S1713 (inclusive). In the WT there was no evidence of loss of the maternal chromosome. Constitutional chromosome abnormalities can often point to the presence of genes that are important in disease, and the deletion of chromosome 12 in this patient may indicate a gene involved in WT. To determine whether a WT predisposition locus exists at 12q we examined the region in two familial Wilms tumor (FWT) pedigrees unlinked to the known FWT genes on chromosomes 17q (FWT1), 19q (FWT2), and 11p (WT1). In both families WT did not segregate with chromosome 12q markers located within the deletion boundaries. © 2001 Wiley‐Liss, Inc.
ISSN:0148-7299
1096-8628
DOI:10.1002/ajmg.10063