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The DEAD-box helicase DDX56 is a conserved stemness regulator in normal and cancer stem cells.
Pryszlak, Michael; Wiggans, Mallory; Chen, Xin; Jaramillo, Julia E; Burns, Sarah E; Richards, Laura M; Pugh, Trevor J; Kaplan, David R; Huang, Xi; Dirks, Peter B; Pearson, Bret J.
Afiliação
  • Pryszlak M; The Hospital for Sick Children, Program in Developmental and Stem Cell Biology, Toronto, ON M5G 0A4, Canada; University of Toronto, Department of Molecular Genetics, Toronto, ON M5S 1A8, Canada.
  • Wiggans M; The Hospital for Sick Children, Program in Developmental and Stem Cell Biology, Toronto, ON M5G 0A4, Canada; University of Toronto, Department of Molecular Genetics, Toronto, ON M5S 1A8, Canada.
  • Chen X; The Hospital for Sick Children, Program in Developmental and Stem Cell Biology, Toronto, ON M5G 0A4, Canada.
  • Jaramillo JE; The Hospital for Sick Children, Program in Developmental and Stem Cell Biology, Toronto, ON M5G 0A4, Canada; University of Toronto, Department of Molecular Genetics, Toronto, ON M5S 1A8, Canada.
  • Burns SE; The Hospital for Sick Children, Program in Developmental and Stem Cell Biology, Toronto, ON M5G 0A4, Canada.
  • Richards LM; Department of Medical Biophysics, University of Toronto, ON M5G 1L7, Canada; Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada.
  • Pugh TJ; Ontario Institute for Cancer Research, Toronto, ON M5G 0A3, Canada; Department of Medical Biophysics, University of Toronto, ON M5G 1L7, Canada; Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2C1, Canada.
  • Kaplan DR; The Hospital for Sick Children, Program in Developmental and Stem Cell Biology, Toronto, ON M5G 0A4, Canada; University of Toronto, Department of Molecular Genetics, Toronto, ON M5S 1A8, Canada.
  • Huang X; The Hospital for Sick Children, Program in Developmental and Stem Cell Biology, Toronto, ON M5G 0A4, Canada; University of Toronto, Department of Molecular Genetics, Toronto, ON M5S 1A8, Canada; Ontario Institute for Cancer Research, Toronto, ON M5G 0A3, Canada; The Hospital for Sick Children, Arthu
  • Dirks PB; The Hospital for Sick Children, Program in Developmental and Stem Cell Biology, Toronto, ON M5G 0A4, Canada; University of Toronto, Department of Molecular Genetics, Toronto, ON M5S 1A8, Canada; Ontario Institute for Cancer Research, Toronto, ON M5G 0A3, Canada; The Hospital for Sick Children, Arthu
  • Pearson BJ; The Hospital for Sick Children, Program in Developmental and Stem Cell Biology, Toronto, ON M5G 0A4, Canada; University of Toronto, Department of Molecular Genetics, Toronto, ON M5S 1A8, Canada; Ontario Institute for Cancer Research, Toronto, ON M5G 0A3, Canada. Electronic address: bret.pearson@sick
Cell Rep ; 34(13): 108903, 2021 03 30.
Article em En | MEDLINE | ID: mdl-33789112
ABSTRACT
Across the animal kingdom, adult tissue homeostasis is regulated by adult stem cell activity, which is commonly dysregulated in human cancers. However, identifying key regulators of stem cells in the milieu of thousands of genes dysregulated in a given cancer is challenging. Here, using a comparative genomics approach between planarian adult stem cells and patient-derived glioblastoma stem cells (GSCs), we identify and demonstrate the role of DEAD-box helicase DDX56 in regulating aspects of stemness in four stem cell systems planarians, mouse neural stem cells, human GSCs, and a fly model of glioblastoma. In a human GSC line, DDX56 localizes to the nucleolus, and using planarians, when DDX56 is lost, stem cells dysregulate expression of ribosomal RNAs and lose nucleolar integrity prior to stem cell death. Together, a comparative genomic approach can be used to uncover conserved stemness regulators that are functional in both normal and cancer stem cells.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Células-Tronco Neoplásicas / RNA Helicases DEAD-box Limite: Animals / Humans Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Células-Tronco Neoplásicas / RNA Helicases DEAD-box Limite: Animals / Humans Idioma: En Ano de publicação: 2021 Tipo de documento: Article