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Aberrant development corrected in adult-onset Huntington's disease iPSC-derived neuronal cultures via WNT signaling modulation

Smith-Geater, Charlene, Hernandez, Sarah J., Lim, Ryan G., Adam, Miriam, Wu, Jie, Stocksdale, Jennifer T., Wassie, Brook T., Gold, Maxwell Philip, Wang, Keona Q., Miramontes, Ricardo, Kopan, Lexi, Orellana, Iliana, Joy, Shona, Kemp, Paul J. ORCID:, Allen, Nicholas D. ORCID:, Fraenkel, Ernest and Thompson, Leslie M. 2020. Aberrant development corrected in adult-onset Huntington's disease iPSC-derived neuronal cultures via WNT signaling modulation. Stem Cell Reports 14 (3) , pp. 406-419. 10.1016/j.stemcr.2020.01.015

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Aberrant neuronal development and the persistence of mitotic cellular populations have been implicated in a multitude of neurological disorders, including Huntington's disease (HD). However, the mechanism underlying this potential pathology remains unclear. We used a modified protocol to differentiate induced pluripotent stem cells (iPSCs) from HD patients and unaffected controls into neuronal cultures enriched for medium spiny neurons, the cell type most affected in HD. We performed single-cell and bulk transcriptomic and epigenomic analyses and demonstrated that a persistent cyclin D1+ neural stem cell (NSC) population is observed selectively in adult-onset HD iPSCs during differentiation. Treatment with a WNT inhibitor abrogates this NSC population while preserving neurons. Taken together, our findings identify a mechanism that may promote aberrant neurodevelopment and adult neurogenesis in adult-onset HD striatal neurons with the potential for therapeutic compensation.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Additional Information: This is an open access article under the CC-BY-NC-ND license.
Publisher: Elsevier
ISSN: 2213-6711
Date of First Compliant Deposit: 2 March 2020
Date of Acceptance: 31 January 2020
Last Modified: 05 May 2023 08:41

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