Effects of genetic correction on the differentiation of hair cell-like cells from iPSCs with MYO15A mutation

Cell Death Differ. 2016 Aug;23(8):1347-57. doi: 10.1038/cdd.2016.16. Epub 2016 Feb 26.

Abstract

Deafness or hearing loss is a major issue in human health. Inner ear hair cells are the main sensory receptors responsible for hearing. Defects in hair cells are one of the major causes of deafness. A combination of induced pluripotent stem cell (iPSC) technology with genome-editing technology may provide an attractive cell-based strategy to regenerate hair cells and treat hereditary deafness in humans. Here, we report the generation of iPSCs from members of a Chinese family carrying MYO15A c.4642G>A and c.8374G>A mutations and the induction of hair cell-like cells from those iPSCs. The compound heterozygous MYO15A mutations resulted in abnormal morphology and dysfunction of the derived hair cell-like cells. We used a CRISPR/Cas9 approach to genetically correct the MYO15A mutation in the iPSCs and rescued the morphology and function of the derived hair cell-like cells. Our data demonstrate the feasibility of generating inner ear hair cells from human iPSCs and the functional rescue of gene mutation-based deafness by using genetic correction.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Base Sequence
  • CRISPR-Cas Systems / genetics
  • Cell Differentiation
  • Cellular Reprogramming
  • Child, Preschool
  • Dermis / cytology
  • Female
  • Fibroblasts / cytology
  • Fibroblasts / metabolism
  • GATA3 Transcription Factor / genetics
  • GATA3 Transcription Factor / metabolism
  • Hair Cells, Auditory, Inner / cytology
  • Hair Cells, Auditory, Inner / metabolism*
  • Humans
  • Induced Pluripotent Stem Cells / cytology*
  • Induced Pluripotent Stem Cells / metabolism
  • Male
  • Mutation
  • Myosins / genetics*
  • Myosins / metabolism
  • PAX2 Transcription Factor / genetics
  • PAX2 Transcription Factor / metabolism
  • PAX8 Transcription Factor / genetics
  • PAX8 Transcription Factor / metabolism
  • Pedigree
  • Polymorphism, Single Nucleotide
  • Transcription Factors / genetics
  • Transcription Factors / metabolism

Substances

  • GATA3 Transcription Factor
  • GATA3 protein, human
  • MYO15A protein, human
  • PAX2 Transcription Factor
  • PAX2 protein, human
  • PAX8 Transcription Factor
  • PAX8 protein, human
  • Transcription Factors
  • Myosins