Lineage selection of functional and cryopreservable human embryonic stem cell-derived neurons

Stem Cells. 2008 Jul;26(7):1705-12. doi: 10.1634/stemcells.2008-0007. Epub 2008 Apr 17.

Abstract

A major prerequisite for the biomedical application of human embryonic stem cells (hESC) is the derivation of defined and homogeneous somatic cell types. Here we present a human doublecortin (DCX) promoter-based lineage-selection strategy for the generation of purified hESC-derived immature neurons. After transfection of hESC-derived neural precursors with a DCX-enhanced green fluorescent protein construct, fluorescence-activated cell sorting enables the enrichment of immature human neurons at purities of up to 95%. Selected neurons undergo functional maturation and are able to establish synaptic connections. Considering that the applicability of purified hESC-derived neurons would largely benefit from an efficient cryopreservation technique, we set out to devise defined freezing conditions involving caspase inhibition, which yield post-thaw recovery rates of up to 83%. Combined with our lineage-selection procedure this cryopreservation technique enables the generation of human neurons in a ready-to-use format for a large variety of biomedical applications.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Lineage
  • Cells, Cultured
  • Cryopreservation / methods*
  • Doublecortin Domain Proteins
  • Doublecortin Protein
  • Electrophysiology
  • Embryonic Stem Cells / cytology*
  • Flow Cytometry
  • Green Fluorescent Proteins / metabolism
  • Hippocampus / embryology
  • Humans
  • Mice
  • Microtubule-Associated Proteins / genetics*
  • Neurons / metabolism*
  • Neuropeptides / genetics*
  • Promoter Regions, Genetic

Substances

  • DCX protein, human
  • Dcx protein, mouse
  • Doublecortin Domain Proteins
  • Doublecortin Protein
  • Microtubule-Associated Proteins
  • Neuropeptides
  • Green Fluorescent Proteins