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Clinical and genetic charsteristics of the Bosch–Boonstra–Schaaf syndrome due to novel mutations in the NR2F1 gene

https://doi.org/10.17650/2222-8721-2020-10-4-38-42

Abstract

Bosch–Boonstra–Schaaf optic atrophy is autosomal dominant disorder caused by mutations in the NR2F1 gene. Its common features include optic atrophy and / or hypoplasia, developmental delay, intellectual disability, attention deficit disorder, autism spectrum disorder, seizures, hearing defects, spasticity, hypotonia, and thinning of the corpus callosum. We report of the clinical and genetic characteristics of two patients with Bosch-Boonstra-Schaaf syndrome with newly detected of the missense mutations с.329T>C (p.Phe110Ser) and с.413G>A (p.Cys138Tyr) in the gene NR2F1. The existence of a polymorphism of the clinical manifestations of the syndrome has been shown, and the necessity of using exome sequencing in the diagnosis of neuro-ophthalmic diseases has been substantiated.

About the Authors

E. L. Dadali
Research Centre for Medical Genetics
Russian Federation
1 Moskvorech’e St., Moscow 115522


A. O. Borovikov
Research Centre for Medical Genetics
Russian Federation
1 Moskvorech’e St., Moscow 115522


O. A. Shchagina
Research Centre for Medical Genetics
Russian Federation
1 Moskvorech’e St., Moscow 115522


O. L. Mironovich
Research Centre for Medical Genetics
Russian Federation
1 Moskvorech’e St., Moscow 115522


References

1. Brown K.K., Alkuraya F.S., Matos M. et al. NR2F1 deletion in a patient with a de novo paracentric inversion, inv(5)(q15q33.2), and syndromic deafness. Am J Med Genet A 2009;149A(5):931–8. DOI: 10.1002/ajmg.a.32764. PMID: 2777524.

2. Bosch D.G., Boonstra F.N., GonzagaJauregui C. et al. NR2F1 mutations cause optic atrophy with intellectual disability. Am J Hum Genet 2014;94(2):303–9. DOI: 10.1016/j.ajhg.2014.01.002. PMID: 3928641.

3. Yamaguchi H., Zhou C., Lin S.C. et al. The nuclear orphan receptor COUP-TFI is important for differentiation of oligodendrocytes. Dev Biol 2004;266(2):238–51. DOI: 10.1016/j.ydbio.2003.10.038. PMID: 14738874.

4. Al-Kateb H., Shimony J.S., Vineyard M. et al. NR2F1 haploinsufficiency is associated with optic atrophy, dysmorphism and global developmental delay. Am J Med Genet A 2013;161A(2):377–81. DOI: 10.1002/ajmg.a.35650. PMID: 23300014.

5. Dimassi S., Labalme A., Ville D. et al. Whole-exome sequencing improves the diagnosis yield in sporadic infantile spasm syndrome. Clin Genet 2016;89(2): 198–204. DOI: 10.1111/cge.12636. PMID: 26138355.

6. Kaiwar C., Zimmermann M.T., Ferber M.J. et al. Novel NR2F1 variants likely disrupt DNA binding: molecular modeling in two cases, review of published cases, genotypephenotype correlation, and phenotypic expansion of the Bosch-Boonstra-Schaaf optic atrophy syndrome. Cold Spring Harb Mol Case Stud 2017;3(6):a002162. DOI: 10.1101/mcs.a002162. PMID: 5701304.

7. Park S.E., Lee J.S., Lee S.T. et al. Targeted panel sequencing identifies a novel NR2F1 mutations in a patient with BoschBoonstra-Schaaf optic atrophy syndrome. Ophthalmic Genet 2019;40(4):359–61. DOI: 10.1080/13816810.2019.1650074. PMID: 31393201.

8. Chen C.A., Wang W., Pedersen S.E. et al. Nr2f1 heterozygous knockout mice recapitulate neurological phenotypes of Bosch-Boonstra-Schaaf optic atrophy syndrome and show impaired hippocampal synaptic plasticity. Hum Mol Genet 2020;29(5):705–15. DOI: 10.1093/hmg/ddz233. PMID: 31600777.

9. Fazzi E., Signorini S.G., Bova S.M. et al. Spectrum of visual disorders in children with cerebral visual impairment. J Child Neurol 2007;22(3):294–301. DOI: 10.1177/08830738070220030801. PMID: 17621499.

10. Bojanek E.K., Mosconi M.W., Guter S. et al. Clinical and neurocognitive issues associated with Bosch-Boonstra-Schaaf optic atrophy syndrome: A case study. Am J Med Genet A 2020;182(1):213–8. DOI: 10.1002/ajmg.a.61409. PMID: 31729143.

11. Layat I., Challe G., LeHoanget et al. Neuro-ophthalmological conditions: study of the clinical care pathway. J Fr Ophtalmol 2017;40(6):e169–75. DOI: 10.1016/j.jfo.2017.05.004. PMID: 28599960.

12. Hozjan I. Optic Nerve Hypoplasia: More Than Meets the Eye. J Pediatr Nurs 2017;34:98–100. DOI: 10.1016/j.pedn.2017.03.011. PMID: 28410859.

13. Birkebaek N.H., Patel L., Wright N.B. et al. Endocrine status in patients with optic nerve hypoplasia: relationship to midline central nervous system abnormalities and appearance of the hypothalamic-pituitary axis on magnetic resonance imaging. J Clin Endocrinol Metab 2003;88(11): 5281–6. DOI: 10.1210/jc.2003-030527. PMID: 14602762.

14. Sweney M.T., Newcomb T.M., Swoboda K.J. The expanding spectrum of neurological phenotypes in children with ATP1A3 mutations, alternating hemiplegia of childhood, rapid-onset dystonia-parkinsonism, CAPOS and beyond. Pediatr Neurol 2015;52(1):56–64. DOI: 10.1016/j.pediatrneurol.2014.09.015. PMID: 4352574.

15. Sferra, A., Baillat G., Rizza T. et al. TBCE mutations cause early-onset progressive encephalopathy with distal spinal muscular atrophy. Am J Hum Genet 2016;99(4):974–83. DOI: 10.1016/j.ajhg.2016.08.006. PMID: 5065657.


Review

For citations:


Dadali E.L., Borovikov A.O., Shchagina O.A., Mironovich O.L. Clinical and genetic charsteristics of the Bosch–Boonstra–Schaaf syndrome due to novel mutations in the NR2F1 gene. Neuromuscular Diseases. 2020;10(4):38-42. (In Russ.) https://doi.org/10.17650/2222-8721-2020-10-4-38-42

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ISSN 2222-8721 (Print)
ISSN 2413-0443 (Online)