Phenotypic Heterogeneity of ISCA2 Variants

International Journal of Medical Science
© 2018 by SSRG - IJMS Journal
Volume 5 Issue 5
Year of Publication : 2018
Authors : Josef Finsterer
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How to Cite?

Josef Finsterer, "Phenotypic Heterogeneity of ISCA2 Variants," SSRG International Journal of Medical Science, vol. 5,  no. 5, pp. 10-11, 2018. Crossref, https://doi.org/10.14445/23939117/IJMS-V5I5P103

Abstract:

 ISCA2 variants have been recently reported to be responsible for a multisystem mitochondrial disease, predominantly affecting the central nervous system. The largest series of patients has been recently reported but it lacks prospective investigations for multiorgan involvement and specification of spinal cord involvement.

Keywords:

 ISCA2, mitochondrial, mtDNA, cerebrum, neurodegeneration, multisystem

References:

[1] Alfadhel M, Nashabat M, Alrifai MT, Alshaalan H, Al Mutairi F, Al-Shahrani SA, Plecko B, Almass R, Alsagob M, Almutairi FB, Al-Rumayyan A, Al-Twaijri W, Al-Owain M, Taylor RW, Kaya N. Further delineation of the phenotypic spectrum of ISCA2 defect: A report of ten new cases. Eur J Paediatr Neurol 2018;22(1):46-55. 
[2] Shimojima K, Higashiguchi T, Kishimoto K, Miyatake S, Miyake N, Takanashi JI, Matsumoto N, Yamamoto T. A novel DARS2 mutation in a Japanese patient with leukoencephalopathy with brainstem and spinal cord involvement but no lactate elevation. Hum Genome Var 2017 Nov 9;4:17051. doi: 10.1038/hgv.2017.51. 
[3] Finsterer J, Zarrouk-Mahjoub S. Involvement of the spinal cord in mitochondrial disorders (MIDs). Neurosci Rural Pract 2018;9:245-251. 
[4] Al-Hassnan ZN, Al-Dosary M, Alfadhel M, Faqeih EA, Alsagob M, Kenana R, Almass R, Al-Harazi OS, Al-Hindi H, Malibari OI, Almutari FB, Tulbah S, Alhadeq F, Al-Sheddi T, Alamro R, AlAsmari A, Almuntashri M, Alshaalan H, Al-Mohanna FA, Colak D, Kaya N. ISCA2 mutation causes infantile neurodegenerative mitochondrial disorder. J Med Genet 2015;52(3):186-94. 
[5] Toldo I, Nosadini M, Boscardin C, Talenti G, Manara R, Lamantea E, Legati A, Ghezzi D, Perilongo G, Sartori S. Neonatal mitochondrial leukoencephalopathy with brain and spinal involvement and high lactate: expanding the phenotype of ISCA2 gene mutations. Metab Brain Dis 2018 Jan 23. doi: 10.1007/s11011-017-0181-3. 
[6] Alaimo JT, Besse A, Alston CL, Pang K, Appadurai V, Samanta M, Smpokou P, McFarland R, Taylor RW, Bonnen PE. Loss-of-function mutations in ISCA2 disrupt 4Fe-4S cluster machinery and cause a fatal leukodystrophy with hyperglycinemia and mtDNA depletion. Hum Mutat 2018;39(4):537-549.