Juvenile amyotrophic lateral sclerosis caused by a mutation in the SPTLC2 gene: case presentation
https://doi.org/10.46563/2686-8997-2023-4-4-208-214
EDN: nikrvo
Abstract
Juvenile amyotrophic lateral sclerosis (ALS) is a rare group of motor neuron diseases, with the age of onset up to 25 years. Juvenile ALS more commonly has genetic origin vs. sporadic forms of ALS that develop in adulthood. Genetic analysis of these cases with early onset makes it possible to identify the genes responsible for the disease. Here we present a case of a rare variant of juvenile ALS caused due to the SPTLC2 gene mutation.
Cases with early disease onset are characterized by slow progression and variable phenotype, which often makes accurate diagnosis challenging. Therefore patients with combined upper and lower motor neuron disorders aged under 25 years should undergo comprehensive examination, in particular to identify gene mutations.
Contribution:
Abdullaeva L.M. — concept and design, text writing, editing;
Kurenkov A.L. — concept and design, text writing, editing;
Kuzenkova L.M. — editing;
Lyalina A.A. — editing;
Ioksha V.A. — editing.
All co-authors are responsible for the integrity of all parts of the manuscript and approval of its final version.
Acknowledgements. The study had no sponsorship.
Conflict of interest. The authors declare no conflict of interest.
Received: October 10, 2023
Accepted: November 11, 2023
Published: December 28, 2023
About the Authors
Luizat M. AbdullaevaRussian Federation
Junior research assistant of the laboratory of rare hereditary childhood disorders of the Medical and Genetic Center, Neurologist of the Center of Child psychoneurology, National Medical Research Center of Children’s Health, Moscow, 119991, Russian Federation
e-mail: instorm@inbox.ru
Alexey L. Kurenkov
Russian Federation
Lyudmila M. Kuzenkova
Russian Federation
Anastasiya A. Lyalina
Russian Federation
Victoria A. Ioksha
Russian Federation
References
1. Liu Z.J., Lin H.X., Liu G.L., Tao Q.Q., Ni W., Xiao B.G., et al. The investigation of genetic and clinical features in Chinese patients with juvenile amyotrophic lateral sclerosis. Clin. Genet. 2017; 92(3): 267–73. https://doi.org/10.1111/cge.13015
2. Aggarwal A., Shashiraj. Juvenile amyotrophic lateral sclerosis. Indian J. Pediatr. 2006; 73(3): 225–6. https://doi.org/10.1007/BF02825486
3. Picher-Martel V., Brunet F., Dupré N., Chrestian N. The occurrence of FUS mutations in pediatric amyotrophic lateral sclerosis: a case report and review of the literature. J. Child. Neurol. 2020; 35(8): 556–62. https://doi.org/10.1177/0883073820915099
4. Mohassel P., Donkervoort S., Lone M.A., Nalls M., Gable K., Gupta S.D., et al. Childhood amyotrophic lateral sclerosis caused by excess sphingolipid synthesis. Nat. Med. 2021; 27(7): 1197–204. https://doi.org/10.1038/s41591-021-01346-1
5. Orban P., Devon R.S., Hayden M.R., Leavitt B.R. Chapter 15: juvenile amyotrophic lateral sclerosis. Handb. Clin. Neurol. 2007; 82: 301–12. https://doi.org/10.1016/S0072-9752(07)80018-2
6. Ghasemi M., Brown R.H. Jr. Genetics of amyotrophic lateral sclerosis. Cold Spring Harb. Perspect. Med. 2018; 8(5): a024125. https://doi.org/10.1101/cshperspect.a024125
7. Johnson J.O., Chia R., Miller D.E., Li R., Kumaran R., Abramzon Y., et al. Association of variants in the SPTLC1 gene with juvenile amyotrophic lateral sclerosis. JAMA Neurol. 2021; 78(10): 1236–48. https://doi.org/10.1001/jamaneurol.2021.2598
8. Mohassel P., Dunn T., Bönnemann C. Motor neuron disease caused by excess sphingolipid synthesis. Neuromuscul. Disord. 2022; 32(Suppl. 1): S94. https://doi.org/10.1016/j.nmd.2022.07.216
9. Li C., Hou Y., Wei Q., Lin J., Jiang Z., Jiang Q., et al. Mutation screening of SPTLC1 and SPTLC2 in amyotrophic lateral sclerosis. Hum. Genomics. 2023; 17(1): 28. https://doi.org/10.1186/s40246-023-00479-3
10. Shefner J.M., Al-Chalabi A., Baker M.R., Cui L.Y., de Carvalho M., Eisen A., et al. A proposal for new diagnostic criteria for ALS. Clin. Neurophysiol. 2020; 131(8): 1975–8. https://doi.org/10.1016/j.clinph.2020.04.005
11. Kacem I., Sghaier I., Bougatef S., Nasri A., Gargouri A., Ajroud-Driss S., et al. Epidemiological and clinical features of amyotrophic lateral sclerosis in a Tunisian cohort. Amyotroph. Lateral Scler. Front. Degener. 2020; 21(1-2): 131–9. https://doi.org/10.1080/21678421.2019.1704012
12. Mejzini R., Flynn L.L., Pitout I.L., Fletcher S., Wilton S.D., Akkari P.A. ALS genetics, mechanisms, and therapeutics: where are we now? Front. Neurosci. 2019; 13: 1310. https://doi.org/10.3389/fnins.2019.01310
13. Mathis S., Goizet C., Soulages A., Vallat J.M., Masson G.L. Genetics of amyotrophic lateral sclerosis: A review. J. Neurol. Sci. 2019; 399: 217–26. https://doi.org/10.1016/j.jns.2019.02.030
14. Hadano S., Hand C.K., Osuga H., Yanagisawa Y., Otomo A., Devon R.S., et al. A gene encoding a putative GTPase regulator is mutated in familial amyotrophic lateral sclerosis 2. Nat. Genet. 2001; 29(2): 166–73. https://doi.org/10.1038/ng1001-166
15. Lehky T., Grunseich C. Juvenile amyotrophic lateral sclerosis: a review. Genes (Basel). 2021; 12(12): 1935. https://doi.org/10.3390/genes12121935
Review
For citations:
Abdullaeva L.M., Kurenkov A.L., Kuzenkova L.M., Lyalina A.A., Ioksha V.A. Juvenile amyotrophic lateral sclerosis caused by a mutation in the SPTLC2 gene: case presentation. L.O. Badalyan Neurological Journal. 2023;4(4):208-214. (In Russ.) https://doi.org/10.46563/2686-8997-2023-4-4-208-214. EDN: nikrvo