Genotype-Phenotype Characterization of Wolf-Hirschhorn Syndrome Confirmed by FISH: Case Reports
Overview
Authors
Affiliations
The Wolf-Hirschhorn syndrome (WHS) is a multiple malformation and contiguous gene syndrome resulting from the deletion encompassing a 4p16.3 region. A microscopically visible terminal deletion on chromosome 4p (4p16→pter) was detected in Case 1 with full blown features of WHS. The second case which had an interstitial microdeletion encompassing WHSC 1 and WHSC 2 genes at 4p16.3 presented with less striking clinical features of WHS and had an apparently "normal" karyotype. The severity of the clinical presentation was as a result of haploinsufficiency and interaction with surrounding genes as well as mutations in modifier genes located outside the WHSCR regions. The study emphasized that an individual with a strong clinical suspicion of chromosomal abnormality and a normal conventional cytogenetic study should be further investigated using molecular cytogenetic techniques such as fluorescence in situ hybridization (FISH) or array-comparative genomic hybridization (a-CGH).
Zhang X, Lu H, Yang H, Ji Y, Liu H, Liu W Front Genet. 2023; 14:1174314.
PMID: 37388934 PMC: 10300434. DOI: 10.3389/fgene.2023.1174314.
Prenatal sonographic findings in confirmed cases of Wolf-Hirschhorn syndrome.
Simonini C, Hoopmann M, Kagan K, Schroder T, Gembruch U, Geipel A BMC Pregnancy Childbirth. 2022; 22(1):327.
PMID: 35428251 PMC: 9013087. DOI: 10.1186/s12884-022-04665-4.
Wolf-Hirschhorn Syndrome: Clinical and Genetic Study of 7 New Cases, and Mini Review.
Gavril E, Luca A, Curpan A, Popescu R, Resmerita I, Panzaru M Children (Basel). 2021; 8(9).
PMID: 34572183 PMC: 8471045. DOI: 10.3390/children8090751.
The Many Faces of : as a Model System to Study Wolf-Hirschhorn Syndrome.
Lasser M, Pratt B, Monahan C, Kim S, Lowery L Front Physiol. 2019; 10:817.
PMID: 31297068 PMC: 6607408. DOI: 10.3389/fphys.2019.00817.
Excellent response to levetiracetam in epilepsy with Wolf-Hirschhorn syndrome.
Karalok Z, Arhan E, Erdogan K, Gurkas E Childs Nerv Syst. 2015; 32(1):9-11.
PMID: 26590026 DOI: 10.1007/s00381-015-2967-0.