期刊
STEM CELLS AND DEVELOPMENT
卷 31, 期 11-12, 页码 269-277出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/scd.2021.0363
关键词
direct conversion; human induced pluripotent stem cells; dopaminergic neurons; ASCL1; LMX1A
In this study, a rapid and simple induction protocol was established to generate mature dopaminergic neurons by expressing two transcription factors ASCL1 and LMX1A. The induced neurons were characterized and their functional properties were analyzed. This resource has potential applications in high-throughput screening for drug development and toxicology.
Human pluripotent stem cells (hPSCs), including human embryonic stem cells and human induced pluripotent stem cells (hiPSCs), provide promising sources for regenerative therapy, disease modeling, and drug screening. Relevant efforts have been invested in establishing robust induction protocols for PSC-derived dopaminergic (DA) neuron generation by mimicking brain development-related signaling pathways. However, these protocols require fully trained techniques and a long time to yield mature DA neurons. In this study, to accelerate the entire process, we generated a hiPSC line differentiating into DA neurons by the inducible force expression of two transcription factors ASCL1 and LMX1A. Using this hiPSC line, we established a rapid and simple induction protocol to generate mature DA neurons in 28 days. The induced DA neurons were characterized by gene expression and immunohistochemical analyses of fundamental DA neuronal markers. Moreover, the cell functional properties were analyzed by a multielectrode array system on day 28. This resource offers future applications for high-throughput screening, such as drug development and toxicology that require highly validated DA neurons.
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