A novel HSPB1 mutation associated with a late onset CMT2 phenotype: Case presentation and systematic review of the literature

Arens Taga, David R. Cornblath

Research output: Contribution to journalReview articlepeer-review

Abstract

Mutations in the HSPB1 gene are associated with Charcot-Marie-Tooth (CMT) disease type 2F (CMT2F) and distal hereditary motor neuropathy type 2 (dHMN2). More than 18 pathogenic mutations spanning across the whole HSPB1 gene have been reported. Three family members with a novel p.P57S (c.169C>T) HSPB1 mutation resulting in a late onset axonal neuropathy with heterogeneous clinical and electrophysiological features are detailed. We systematically reviewed published case reports and case series on HSPB1 mutations. While a genotype-phenotype correlation was not obvious, we identified a common phenotype, which included adult onset, male predominance, motor more frequently than sensory involvement, distal and symmetric distribution with preferential involvement of plantar flexors, and a motor and axonal electrophysiological picture.

Original languageEnglish (US)
Pages (from-to)223-229
Number of pages7
JournalJournal of the Peripheral Nervous System
Volume25
Issue number3
DOIs
StatePublished - Sep 1 2020

Keywords

  • HSP27
  • dHMN2
  • heat shock proteins
  • hereditary neuropathy

ASJC Scopus subject areas

  • Neuroscience(all)
  • Clinical Neurology

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