Abstract
Engraftment of oligodendrocyte progenitor cells (OPCs), which form myelinating oligodendrocytes, has the potential to treat demyelinating diseases such as multiple sclerosis. However, conventional strategies for generating oligodendrocytes have mainly focused on direct differentiation into forebrain- or spinal cord-restricted oligodendrocytes without establishing or amplifying stem/progenitor cells. Taking advantage of a recently established culture system, we generated expandable EN1- and GBX2-positive glial-restricted progenitor-like cells (GPLCs) near the anterior hindbrain. These cells expressed PDGFRα, CD9, S100β, and SOX10 and mostly differentiated into GFAP-positive astrocytes and MBP-positive oligodendrocytes. RNA-seq analysis revealed that the transcriptome of GPLCs was similar to that of O4-positive OPCs, but distinct from that of rosette-type neural stem cells. Notably, engrafted GPLCs not only differentiated into GFAP-positive astrocytes but also myelinated the brains of adult shiverer mice 8 weeks after transplantation. Our strategy for establishing anterior hindbrain-specific GPLCs with gliogenic potency will facilitate their use in the treatment of demyelinating diseases and studies of the molecular mechanisms underlying glial development in the hindbrain.
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