Cohesin complex-associated holoprosencephaly.
X-linked inheritance
cohesin complex
forebrain division
holoprosencephaly
Journal
Brain : a journal of neurology
ISSN: 1460-2156
Titre abrégé: Brain
Pays: England
ID NLM: 0372537
Informations de publication
Date de publication:
01 09 2019
01 09 2019
Historique:
received:
05
03
2019
revised:
15
05
2019
accepted:
22
05
2019
pubmed:
25
7
2019
medline:
19
5
2020
entrez:
24
7
2019
Statut:
ppublish
Résumé
Marked by incomplete division of the embryonic forebrain, holoprosencephaly is one of the most common human developmental disorders. Despite decades of phenotype-driven research, 80-90% of aneuploidy-negative holoprosencephaly individuals with a probable genetic aetiology do not have a genetic diagnosis. Here we report holoprosencephaly associated with variants in the two X-linked cohesin complex genes, STAG2 and SMC1A, with loss-of-function variants in 10 individuals and a missense variant in one. Additionally, we report four individuals with variants in the cohesin complex genes that are not X-linked, SMC3 and RAD21. Using whole mount in situ hybridization, we show that STAG2 and SMC1A are expressed in the prosencephalic neural folds during primary neurulation in the mouse, consistent with forebrain morphogenesis and holoprosencephaly pathogenesis. Finally, we found that shRNA knockdown of STAG2 and SMC1A causes aberrant expression of HPE-associated genes ZIC2, GLI2, SMAD3 and FGFR1 in human neural stem cells. These findings show the cohesin complex as an important regulator of median forebrain development and X-linked inheritance patterns in holoprosencephaly.
Identifiants
pubmed: 31334757
pii: 5537372
doi: 10.1093/brain/awz210
pmc: PMC7245359
doi:
Substances chimiques
Cell Cycle Proteins
0
Chromosomal Proteins, Non-Histone
0
STAG2 protein, human
0
structural maintenance of chromosome protein 1
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, N.I.H., Intramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
2631-2643Subventions
Organisme : Wellcome Trust
Pays : United Kingdom
Organisme : Doris Duke Charitable Foundation
ID : 2012059
Pays : United States
Organisme : NIEHS NIH HHS
ID : T32 ES007015
Pays : United States
Organisme : NIEHS NIH HHS
ID : R01 ES026819
Pays : United States
Commentaires et corrections
Type : CommentIn
Type : CommentIn
Informations de copyright
Published by Oxford University Press on behalf of the Guarantors of Brain 2019. This work is written by US Government employees and is in the public domain in the US.
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