Congenital hypomyelinating neuropathy, central dysmyelination, and Waardenburg-Hirschsprung disease: phenotypes linked by SOX10 mutation.

Abstract:

:A unique phenotype of Waardenburg-Hirschsprung disease (WS4) accompanied by peripheral neuropathy and central dysmyelination has been recognized recently in association with SOX10 mutations. We report an infant boy with lethal congenital hypomyelinating neuropathy and WS4 who had a heterozygous SOX10 mutation (Q250X). Histopathological studies showed an absence of peripheral nerve myelin despite normal numbers of Schwann cells and profound dysmyelination in the central nervous system. These observations suggest that some SOX10 mutations such as Q250X may allow Schwann cells and oligodendrocytes to proliferate but interfere with further differentiation to form myelin. In contrast with the SOX10 loss-of-function mutations causing only WS4, mutations associated with both peripheral and central dysmyelination may affect pathology through a dominant-negative mechanism.

journal_name

Ann Neurol

journal_title

Annals of neurology

authors

Inoue K,Shilo K,Boerkoel CF,Crowe C,Sawady J,Lupski JR,Agamanolis DP

doi

10.1002/ana.10404

keywords:

subject

Has Abstract

pub_date

2002-12-01 00:00:00

pages

836-42

issue

6

eissn

0364-5134

issn

1531-8249

journal_volume

52

pub_type

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