» Articles » PMID: 22071891

A Multi-exon Deletion Within WWOX is Associated with a 46,XY Disorder of Sex Development

Overview
Journal Eur J Hum Genet
Specialty Genetics
Date 2011 Nov 11
PMID 22071891
Citations 20
Authors
Affiliations
Soon will be listed here.
Abstract

Disorders of sex development (DSD) are congenital conditions where chromosomal, gonad or genital development is atypical. In a significant proportion of 46,XY DSD cases it is not possible to identify a causative mutation, making genetic counseling difficult and potentially hindering optimal treatment. Here, we describe the analysis of a 46,XY DSD patient that presented at birth with ambiguous genitalia. Histological analysis of the surgically removed gonads showed bilateral undifferentiated gonadal tissue and immature testis, both containing malignant germ cells. We screened genomic DNA from this patient for deletions and duplications using an Illumina whole-genome SNP microarray. This analysis revealed a heterozygous deletion within the WWOX gene on chromosome 16, removing exons 6-8. Analysis of parental DNA showed that the deletion was inherited from the mother. cDNA analysis confirmed that the deletion maintained the reading frame, with exon 5 being spliced directly onto exon 9. This deletion is the first description of a germline rearrangement affecting the coding sequence of WWOX in humans. Previously described Wwox knockout mouse models showed gonadal abnormalities, supporting a role for WWOX in human gonad development.

Citing Articles

Whole-genome de novo sequencing reveals genomic variants associated with differences of sex development in SRY negative pigs.

Wu J, Tan S, Feng Z, Zhao H, Yu C, Yang Y Biol Sex Differ. 2024; 15(1):68.

PMID: 39223676 PMC: 11367908. DOI: 10.1186/s13293-024-00644-w.


Testicular differentiation in 46,XX DSD: an overview of genetic causes.

Ferrari M, Silva E, Nishi M, Batista R, Mendonca B, Domenice S Front Endocrinol (Lausanne). 2024; 15():1385901.

PMID: 38721146 PMC: 11076692. DOI: 10.3389/fendo.2024.1385901.


Genetic control of typical and atypical sex development.

Reyes A, Leon N, Frost E, Harley V Nat Rev Urol. 2023; 20(7):434-451.

PMID: 37020056 DOI: 10.1038/s41585-023-00754-x.


WWOX and metabolic regulation in normal and pathological conditions.

Baryla I, Kosla K, Bednarek A J Mol Med (Berl). 2022; 100(12):1691-1702.

PMID: 36271927 PMC: 9691486. DOI: 10.1007/s00109-022-02265-5.


Neurological Disorders Associated with WWOX Germline Mutations-A Comprehensive Overview.

Banne E, Abudiab B, Abu-Swai S, Repudi S, Steinberg D, Shatleh D Cells. 2021; 10(4).

PMID: 33916893 PMC: 8067556. DOI: 10.3390/cells10040824.


References
1.
Hersmus R, Kalfa N, de Leeuw B, Stoop H, Oosterhuis J, de Krijger R . FOXL2 and SOX9 as parameters of female and male gonadal differentiation in patients with various forms of disorders of sex development (DSD). J Pathol. 2008; 215(1):31-8. DOI: 10.1002/path.2335. View

2.
Notini A, Craig J, White S . Copy number variation and mosaicism. Cytogenet Genome Res. 2009; 123(1-4):270-7. DOI: 10.1159/000184717. View

3.
White S, Ohnesorg T, Notini A, Roeszler K, Hewitt J, Daggag H . Copy number variation in patients with disorders of sex development due to 46,XY gonadal dysgenesis. PLoS One. 2011; 6(3):e17793. PMC: 3049794. DOI: 10.1371/journal.pone.0017793. View

4.
Aqeilan R, Trapasso F, Hussain S, Costinean S, Marshall D, Pekarsky Y . Targeted deletion of Wwox reveals a tumor suppressor function. Proc Natl Acad Sci U S A. 2007; 104(10):3949-54. PMC: 1820689. DOI: 10.1073/pnas.0609783104. View

5.
Cools M, Drop S, Wolffenbuttel K, Oosterhuis J, Looijenga L . Germ cell tumors in the intersex gonad: old paths, new directions, moving frontiers. Endocr Rev. 2006; 27(5):468-84. DOI: 10.1210/er.2006-0005. View