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    Inhibition of DYRK1A disrupts neural lineage specificationin human pluripotent stem cells

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    Author
    Bellmaine, SF; Ovchinnikov, DA; Manallack, DT; Cuddy, CE; Elefanty, AG; Stanley, EG; Wolvetang, EJ; Williams, SJ; Pera, M
    Date
    2017-09-08
    Source Title
    eLife
    Publisher
    ELIFE SCIENCES PUBLICATIONS LTD
    University of Melbourne Author/s
    Pera, Martin; Stanley, Edouard; Elefanty, Andrew; Williams, Spencer; Bellmaine, Stephanie; Cuddy, Claire
    Affiliation
    Anatomy and Neuroscience
    School of Chemistry
    Paediatrics (RCH)
    Metadata
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    Document Type
    Journal Article
    Citations
    Bellmaine, S. F., Ovchinnikov, D. A., Manallack, D. T., Cuddy, C. E., Elefanty, A. G., Stanley, E. G., Wolvetang, E. J., Williams, S. J. & Pera, M. (2017). Inhibition of DYRK1A disrupts neural lineage specificationin human pluripotent stem cells. ELIFE, 6, https://doi.org/10.7554/eLife.24502.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/256850
    DOI
    10.7554/eLife.24502
    Abstract
    Genetic analysis has revealed that the dual specificity protein kinase DYRK1A has multiple roles in the development of the central nervous system. Increased DYRK1A gene dosage, such as occurs in Down syndrome, is known to affect neural progenitor cell differentiation, while haploinsufficiency of DYRK1A is associated with severe microcephaly. Using a set of known and newly synthesized DYRK1A inhibitors, along with CRISPR-mediated gene activation and shRNA knockdown of DYRK1A, we show here that chemical inhibition or genetic knockdown of DYRK1A interferes with neural specification of human pluripotent stem cells, a process equating to the earliest stage of human brain development. Specifically, DYRK1A inhibition insulates the self-renewing subpopulation of human pluripotent stem cells from powerful signals that drive neural induction. Our results suggest a novel mechanism for the disruptive effects of the absence or haploinsufficiency of DYRK1A on early mammalian development, and reveal a requirement for DYRK1A in the acquisition of competence for differentiation in human pluripotent stem cells.

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