NewslettersCancer Stem Cell NewsNeural Cell News USP21 Promotes Self-Renewal and Tumorigenicity of Mesenchymal Glioblastoma Stem Cells by Deubiquitinating and Stabilizing FOXD1 By lbeveridge - August 16, 2022 0 The authors identified the ubiquitin-specific peptidase 21 as a critical FOXD1 deubiquitinase in mesenchymal properties of glioblastoma stem cells. [Cell Death & Differentiation] Full Article