Absence of mutations in the WT1 gene in patients with XY gonadal dysgenesis.

Abstract:

:The WT1 gene is normally expressed during gonadal development and specific mutations in heterozygous form cause Drash syndrome, characterized by male pseudohermaphroditism and gonadal dysgenesis, renal failure and a predisposition for Wilms' tumour. These observations prompted us to test whether WT1 mutations are involved in isolated gonadal dysgenesis, being the most severe form of disturbance in gonadal differentiation. We studied 27 cases of 46,XY females with gonadal dysgenesis who had previously been screened for and found not to carry SRY gene mutations. We performed mutational screening of the WT1 gene with denaturing gradient gel electrophoresis. In one of these patients, a heterozygous point mutation in exon 8 was found. This mutation has previously been described in Drash syndrome and re-evaluation of the clinical data confirmed this diagnosis. Based on these results, we conclude that isolated gonadal dysgenesis is not caused by mutations in the WT1 gene.

journal_name

Hum Genet

journal_title

Human genetics

authors

Nordenskjöld A,Fricke G,Anvret M

doi

10.1007/BF00214195

subject

Has Abstract

pub_date

1995-07-01 00:00:00

pages

102-4

issue

1

eissn

0340-6717

issn

1432-1203

journal_volume

96

pub_type

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