Document Type

Article Presentation

Original Publication Date


Date of Submission

April 2022


FOXO transcription factors have been implicated in modulating proteasome activity. Liu et al. found that Huntington's disease-induced pluripotent stem cells (HD iPSCs) exhibited greater proteasome activity as well as greater FOXO1 and FOXO4 expression. To determine a possible causal relationship, Liu et al. performed shRNA knockout of these two transcription factors and found that only FOXO4 mediated proteasome activity in pluripotent stem cells. Overexpression of FOXO4 rescued proteasomal defect in HD iPSCs-derived neural progenitor cells (NPCs). Overall, Liu et al. found that FOXO4 specifically modulated proteasome activity in HD iPSCs and their derived NPCs.


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