Rapid neuronal differentiation of induced pluripotent stem cells for measuring network activity on micro-electrode arrays

Monica Frega, Sebastianus H.C. Van Gestel, Katrin Linda, Jori Van Der Raadt, Jason Keller, Jon Ruben Van Rhijn, Dirk Schubert, Cornelis A. Albers*, Nael Nadif Kasri

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    35 Citations (Scopus)
    40 Downloads (Pure)

    Abstract

    Neurons derived from human induced Pluripotent Stem Cells (hiPSCs) provide a promising new tool for studying neurological disorders. In the past decade, many protocols for differentiating hiPSCs into neurons have been developed. However, these protocols are often slow with high variability, low reproducibility, and low efficiency. In addition, the neurons obtained with these protocols are often immature and lack adequate functional activity both at the single-cell and network levels unless the neurons are cultured for several months. Partially due to these limitations, the functional properties of hiPSC-derived neuronal networks are still not well characterized. Here, we adapt a recently published protocol that describes production of human neurons from hiPSCs by forced expression of the transcription factor neurogenin-212. This protocol is rapid (yielding mature neurons within 3 weeks) and efficient, with nearly 100% conversion efficiency of transduced cells (>95% of DAPI-positive cells are MAP2 positive). Furthermore, the protocol yields a homogeneous population of excitatory neurons that would allow the investigation of celltype specific contributions to neurological disorders. We modified the original protocol by generating stably transduced hiPSC cells, giving us explicit control over the total number of neurons. These cells are then used to generate hiPSC-derived neuronal networks on micro-electrode arrays. In this way, the spontaneous electrophysiological activity of hiPSC-derived neuronal networks can be measured and characterized, while retaining interexperimental consistency in terms of cell density. The presented protocol is broadly applicable, especially for mechanistic and pharmacological studies on human neuronal networks.

    Original languageEnglish
    Article numbere54900
    JournalJournal of visualized experiments
    Volume2017
    Issue number119
    DOIs
    Publication statusPublished - 1 Jan 2017

    Keywords

    • Astrocyte isolation
    • Developmental biology
    • Induced pluripotent stem cells
    • Lentiviral transduction
    • Micro-electrode arrays
    • Neuronal differentiation
    • Neuronal network

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