Title : First LIPA Mutational Analysis in Egyptian Patients Reveals One Novel Variant: Wolman Disease - Elaraby_2023_J.Mol.Neurosci__ |
Author(s) : Elaraby NM , Galal ER , Abdel-Hamid M , Elbendary HM , Elbadry M , Mekkawy MK , Ashaat NA , Mounir SM , Ashaat EA |
Ref : Journal of Molecular Neuroscience , : , 2023 |
Abstract :
Lysosomal acid lipase (LAL) is a necessary enzyme for the hydrolysis of both triglycerides (TGs) and cholesteryl esters (CEs) in the lysosome. Deficiency of this enzyme encoded by the lipase A (LIPA) gene leads to LAL deficiency (LAL-D). A severe disease subtype of LAL-D is known as Wolman disease (WD), present with diarrhea, hepatosplenomegaly, and adrenal calcification. Untreated patients do not survive more than a year. The aim of this study was to assess the clinical and molecular characterizations of WD patients in Egypt. A total of seven patients (from five unrelated Egyptian families) were screened by targeted next-generation sequencing (NGS), and the co-segregation of causative variants was analyzed using Sanger sequencing. Furthermore, multiple in silico analyses were performed to assess the pathogenicity of the candidate variants. Overall, we identified three diseases causing variants harbored in the LIPA gene. One of these variants is a novel missense variant (NM_000235.4: c.1122 T>G; p. His374Gln), which was classified as a likely pathogenic variant. All variants were predicted to be disease causing using in silico analyses. Our findings expand the spectrum of variants involved in WD which may help to investigate phenotype-genotype correlation and assist genetic counseling. To the best of our knowledge, this is the first clinico-genetic study carried out on Egyptian patients affected with WD. |
PubMedSearch : Elaraby_2023_J.Mol.Neurosci__ |
PubMedID: 37470904 |
Gene_locus related to this paper: human-LIPA |
Mutation | H374Q_human-LIPA D352del_human-LIPA G87V_human-LIPA |
Gene_locus | human-LIPA |
Disease | Wolman disease WD, Cholesterol Ester Storage Disease, CESD |
Elaraby NM, Galal ER, Abdel-Hamid M, Elbendary HM, Elbadry M, Mekkawy MK, Ashaat NA, Mounir SM, Ashaat EA (2023)
First LIPA Mutational Analysis in Egyptian Patients Reveals One Novel Variant: Wolman Disease
Journal of Molecular Neuroscience
:
Elaraby NM, Galal ER, Abdel-Hamid M, Elbendary HM, Elbadry M, Mekkawy MK, Ashaat NA, Mounir SM, Ashaat EA (2023)
Journal of Molecular Neuroscience
: