Transcriptional Convergence of Oligodendrocyte Lineage Progenitors during Development

Dev Cell. 2018 Aug 20;46(4):504-517.e7. doi: 10.1016/j.devcel.2018.07.005. Epub 2018 Aug 2.

Abstract

Pdgfra+ oligodendrocyte precursor cells (OPCs) arise in distinct specification waves during embryogenesis in the central nervous system (CNS). It is unclear whether there is a correlation between these waves and different oligodendrocyte (OL) states at adult stages. Here, we present bulk and single-cell transcriptomics resources providing insights on how transitions between these states occur. We found that post-natal OPCs from brain and spinal cord present similar transcriptional signatures. Moreover, post-natal OPC progeny of E13.5 Pdgfra+ cells present electrophysiological and transcriptional profiles similar to OPCs derived from subsequent specification waves, indicating that Pdgfra+ pre-OPCs rewire their transcriptional network during development. Single-cell RNA-seq and lineage tracing indicates that a subset of E13.5 Pdgfra+ cells originates cells of the pericyte lineage. Thus, our results indicate that embryonic Pdgfra+ cells in the CNS give rise to distinct post-natal cell lineages, including OPCs with convergent transcriptional profiles in different CNS regions.

Keywords: myelin; neural development; neural progenitors; oligodendrocyte; oligodendrocyte precursor cell; pericyte; platelet-derived growth factor receptor alpha; single-cell RNA-seq; transcription factors; transcriptomics.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Differentiation / physiology*
  • Cell Lineage / physiology*
  • Cell Proliferation / physiology*
  • Cells, Cultured
  • Oligodendroglia / cytology*
  • Receptor, Platelet-Derived Growth Factor alpha / metabolism
  • Spinal Cord / metabolism
  • Stem Cells / cytology

Substances

  • Receptor, Platelet-Derived Growth Factor alpha