Case Report: Novel rare mutation c.6353C > G in the ABCA12 gene causing harlequin ichthyosis identified by whole exome sequencing.

Autor:	Tran VK; Department of Molecular Pathology Faculty of Medical Technology and Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Vietnam., Diep QM; Assisted Reproductive Technology Center, Quang Ninh Hospital for Obstetric and Pediatric, Quang ninh, Vietnam., Zilong Q; BGI Genomics, BGI-Shenzhen, Shenzhen, China., Phuong LT; Department of Molecular Pathology Faculty of Medical Technology and Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Vietnam., Tran HA; Department of Molecular Pathology Faculty of Medical Technology and Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Vietnam., Van Tung N; Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam.; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam., Lien NTK; Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam., Xuan NT; Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam., Ha LT; Neonatal Care Center, Vietnam National Hospital of Pediatrics, Hanoi, Vietnam., Van Ta T; Department of Molecular Pathology Faculty of Medical Technology and Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Vietnam., Tran TH; Department of Molecular Pathology Faculty of Medical Technology and Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Vietnam., Hoang NH; Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam.; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
Jazyk:	angličtina
Zdroj:	Frontiers in pediatrics [Front Pediatr] 2023 Feb 15; Vol. 11, pp. 1128716. Date of Electronic Publication: 2023 Feb 15 (Print Publication: 2023).
DOI:	10.3389/fped.2023.1128716
Abstrakt:	Background: Harlequin ichthyosis (HI) is a severe rare genetic disease that mainly affects the skin. Neonates with this disease are born with thick skin and large diamond-shaped plates covering most of their bodies. Affected neonates lose the ability to control dehydration and regulate temperature and are more susceptible to infections. They also face respiratory failure and feeding problems. These clinical symptoms are factors associated with high mortality rates of neonates with HI. Until now, there are still no effective treatments for HI patients and most patients die in the newborn period. Mutation in the ABCA12 gene, which encodes an adenosine triphosphate-binding cassette (ABC) transporter, has been demonstrated as the major cause of HI. Case Presentation: In this study, we report the case who is one infant that was born prematurely at 32 gestational weeks with the whole body covered with thick plate-like scales of skin. The infant was severely infected with mild edema, multiple cracked skins full of the body, yellow discharge, and necrosis of fingers and toes. The infant was suspected to be affected by HI. Whole exome sequencing (WES) was performed as a tool for detecting the novel mutation in one prematurely born Vietnam infant with HI phenotype. And after that, the mutation was confirmed by the Sanger sequencing method in the patient and the members of his family. In this case, one novel mutation c.6353C > G ( p .S2118X, Hom) in the ABCA12 gene, was detected in the patient. The mutation has not been reported in any HI patients previously. This mutation was also found in a heterozygous state in the members of the patient's family, including his parents, an older brother, and an older sister who are no symptoms. Conclusions: In this study, we identified a novel mutation in a Vietnamese patient with HI by whole exome sequencing. The results for the patient and the members of his family will be helpful in understanding the etiology of the disease, diagnosing carriers, assisting in genetic counseling, and emphasizing the need for DNA-based prenatal screening for families with a history of the disease. (© 2023 Tran, Diep, Zilong, Phuong, Tran, Van Tung, Lien, Xuan, Ha, Van Ta, Tran and Hoang.)
Databáze:	MEDLINE
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