Neurological Sciences

, Volume 39, Issue 4, pp 717–724 | Cite as

Whole-exome sequencing reveals a rare interferon gamma receptor 1 mutation associated with myasthenia gravis

  • Guoyan Qi
  • Peng Liu
  • Shanshan Gu
  • Hongxia Yang
  • Huimin Dong
  • Yinping Xue
Original Article

Abstract

Our study is aimed to explore the underlying genetic basis of myasthenia gravis. We collected a Chinese pedigree with myasthenia gravis, and whole-exome sequencing was performed on the two affected siblings and their parents. The candidate pathogenic gene was identified by bioinformatics filtering, which was further verified by Sanger sequencing. The homozygous mutation c.G40A (p.V14M) in interferon gamma receptor 1was identified. Moreover, the mutation was also detected in 3 cases of 44 sporadic myasthenia gravis patients. The p.V14M substitution in interferon gamma receptor 1 may affect the signal peptide function and the translocation on cell membrane, which could disrupt the binding of the ligand of interferon gamma and antibody production, contributing to myasthenia gravis susceptibility. We discovered that a rare variant c.G40A in interferon gamma receptor 1 potentially contributes to the myasthenia gravis pathogenesis. Further functional studies are needed to confirm the effect of the interferon gamma receptor 1 on the myasthenia gravis phenotype.

Keywords

Myasthenia gravis Autoimmune disease Whole-exome sequencing Interferon gamma receptor 1 Pathologenesis 

Notes

Compliance with ethical standards

Conflicts of interest

The authors declare that they have no conflict of interest.

Research involving human participants

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

Supplementary material

10072_2018_3275_MOESM1_ESM.docx (16 kb)
ESM 1 (DOCX 16 kb).

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Copyright information

© Springer-Verlag Italia S.r.l., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Center of Treatment of Myasthenia Gravis Hebei ProvinceFirst Hospital of ShijiazhuangShijiazhuangChina

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