Rapid and efficient generation of oligodendrocytes from human induced pluripotent stem cells using transcription factors

Significance Understanding of myelin diseases and development of new treatment options are at least partly hampered by the limited availability of human oligodendrocytes. Induced pluripotent stem cells (iPSC) may be an ideal tool to circumvent this problem; however, rapid and efficient protocols to generate oligodendrocytes from human iPSC are currently lacking. The induction of the transcription factors SOX10, OLIG2, and NKX6.2 in iPSC-derived neural progenitors accelerates oligodendroglial differentiation significantly resulting in up to 70% of O4+ oligodendrocytes within 28 d. These oligodendrocytes myelinate the CNS during development and after demyelination, and are suitable for pharmacological screens and disease modeling. The strategy presented herein will markedly facilitate the studying of human myelin diseases and the development of screening platforms for drug discovery. Rapid and efficient protocols to generate oligodendrocytes (OL) from human induced pluripotent stem cells (iPSC) are currently lacking, but may be a key technology to understand the biology of myelin diseases and to develop treatments for such disorders. Here, we demonstrate that the induction of three transcription factors (SOX10, OLIG2, NKX6.2) in iPSC-derived neural progenitor cells is sufficient to rapidly generate O4+ OL with an efficiency of up to 70% in 28 d and a global gene-expression profile comparable to primary human OL. We further demonstrate that iPSC-derived OL disperse and myelinate the CNS of Mbpshi/shi Rag−/− mice during development and after demyelination, are suitable for in vitro myelination assays, disease modeling, and screening of pharmacological compounds potentially promoting oligodendroglial differentiation. Thus, the strategy presented here to generate OL from iPSC may facilitate the studying of human myelin diseases and the development of high-throughput screening platforms for drug discovery.

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