Personalized and Precision Medicine Journal
Where Innovations Meets Personalized and Precision Medicine

ARSA gene mutation analysis in 5 patients with metachromatic leukodystrophy

Document Type : Original Article

Authors

Sahar Hassannejad 1
Seyed Reza Hayatgheibi 2
Massoud Houshmand 2
Roya Amirinezhad 3

1 Researcher and lecture assistant at the Medical Laboratory Science Department, Knowledge University, Kurdistan Region, Erbil, Iraq

2 Department of Medical genetic, national Institute for genetic Engineering and Biotechnology, Tehran, Iran

3 Personalized Medicine Research Center of AmitisGen, Tehran, Iran

https://doi.org/10.22034/pmj.2020.46381
Abstract
Metachromatic leukodystrophyis a kind of lysosomal storage disorder caused by a deficiency in the ARSA enzyme, which is involved in the metabolism of membrane sulfatides into galactosylceramide. ARSA gene mutation analysis is likely to be in increasing demand for the accurate detection of heterozygous carriers and for prenatal diagnosis in families with a metachromatic leukodystrophy proband. This study examined the sequence of the ARSA gene in 7 patients with metachromatic leukodystrophy by exon Sanger sequencing. Eleven mutations were found in the ARSA gene. It was further found that five mutations were probably damaging to the protein activity with a high score and specificity. The results pave the way to a more effective method for career detection , genetic diagnosis, and the counseling of Iranian patients with MLD disorder.
 

Keywords

metachromatic leukodystrophy
ARSA gene
mutation
genetic counseling
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Personalized and Precision Medicine Journal
Volume 5, Issue 18
Original article
Summer 2020
Pages 14-16

  • Receive Date 21 October 2020

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