Risk of meningomyelocele mediated by the common 22q11.2 deletion
- PMID: 38696583
- DOI: 10.1126/science.adl1624
Risk of meningomyelocele mediated by the common 22q11.2 deletion
Abstract
Meningomyelocele is one of the most severe forms of neural tube defects (NTDs) and the most frequent structural birth defect of the central nervous system. We assembled the Spina Bifida Sequencing Consortium to identify causes. Exome and genome sequencing of 715 parent-offspring trios identified six patients with chromosomal 22q11.2 deletions, suggesting a 23-fold increased risk compared with the general population. Furthermore, analysis of a separate 22q11.2 deletion cohort suggested a 12- to 15-fold increased NTD risk of meningomyelocele. The loss of Crkl, one of several neural tube-expressed genes within the minimal deletion interval, was sufficient to replicate NTDs in mice, where both penetrance and expressivity were exacerbated by maternal folate deficiency. Thus, the common 22q11.2 deletion confers substantial meningomyelocele risk, which is partially alleviated by folate supplementation.
Similar articles
-
Velo-cardio-facial syndrome and DiGeorge sequence with meningomyelocele and deletions of the 22q11 region.Am J Med Genet. 1994 Oct 1;52(4):445-9. doi: 10.1002/ajmg.1320520410. Am J Med Genet. 1994. PMID: 7747757
-
Central 22q11.2 deletion (LCR22 B-D) in a fetus with severe fetal growth restriction and a mother with severe systemic lupus erythematosus: Further evidence of CRKL haploinsufficiency in the pathogenesis of 22q11.2 deletion syndrome.Am J Med Genet A. 2021 Oct;185(10):3042-3047. doi: 10.1002/ajmg.a.62346. Epub 2021 Jul 1. Am J Med Genet A. 2021. PMID: 34196458
-
Spina bifida and other neural tube defects.Curr Probl Pediatr. 2000 Nov-Dec;30(10):313-32. doi: 10.1067/mpp.2000.112052. Curr Probl Pediatr. 2000. PMID: 11147289 Review.
-
Velo-cardio-facial and DiGeorge syndromes with meningomyelocele and deletions of the 22Q11 region.Eur J Pediatr Surg. 1993 Dec;3 Suppl 1:27-8. Eur J Pediatr Surg. 1993. PMID: 8130147 No abstract available.
-
Epidemiologic and genetic aspects of spina bifida and other neural tube defects.Dev Disabil Res Rev. 2010;16(1):6-15. doi: 10.1002/ddrr.93. Dev Disabil Res Rev. 2010. PMID: 20419766 Free PMC article. Review.
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Medical