Frontiers in Genetics (Jun 2022)

Case Report: A New Family With Pontocerebellar Hypoplasia 10 From Sudan

  • Mutaz Amin,
  • Mutaz Amin,
  • Cedric Vignal,
  • Ahlam A. A. Hamed,
  • Inaam N. Mohammed,
  • Maha A. Elseed,
  • Rayan Abubaker,
  • Rayan Abubaker,
  • Yousuf Bakhit,
  • Yousuf Bakhit,
  • Arwa Babai,
  • Eman Elbadi,
  • Esraa Eltaraifee,
  • Doua Mustafa,
  • Ashraf Yahia,
  • Melka Osman,
  • Mahmoud Koko,
  • Mohamed Mustafa,
  • Mohamed Alsiddig,
  • Sahwah Haroun,
  • Azza Elshafea,
  • Severine Drunat,
  • Severine Drunat,
  • Liena E. O. Elsayed,
  • Ammar E. Ahmed,
  • Odile Boespflug-Tanguy,
  • Odile Boespflug-Tanguy,
  • Imen Dorboz,
  • Imen Dorboz

DOI
https://doi.org/10.3389/fgene.2022.883211
Journal volume & issue
Vol. 13

Abstract

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Pontocerebellar hypoplasia type 10 (PCH10) is a very rare autosomal recessive neurodegenerative disease characterized by intellectual disability, microcephaly, severe developmental delay, pyramidal signs, mild cerebellar atrophy, and white matter changes in the brain, as shown by magnetic resonance imaging (MRI). The disease has been described in only twenty-one patients from ten Turkish families with a founder missense pathogenic variant in the CLP1 gene involved in tRNA processing and maturation. We analyzed three siblings from a consanguineous Sudanese family who presented with intellectual disability, dysmorphic features, developmental delay, regression of milestones, microcephaly, epilepsy, extrapyramidal signs, mild pontine, and cerebellar atrophy. We identified through whole-exome sequencing the same pathogenic variant (c.419G>A; p(Arg140His) reported before in all Turkish families. Our study extends the phenotypes of PCH10 and reports for the first time cases with PCH10 of non-Turkish origin.

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