Article (Scientific journals)
Subversion of mRNA degradation pathways by EWSR1::FLI1 represents a therapeutic vulnerability in Ewing sarcoma.
Galvan, Bartimée; Ongena, Loïc; Bruyr, Jonathan et al.
2025In Nature Communications, 16 (1), p. 6537
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Keywords :
Proto-Oncogene Protein c-fli-1; EWSR1 protein, human; RNA-Binding Protein EWS; FLI1 protein, human; Oncogene Proteins, Fusion; RNA, Messenger; RNA-Binding Proteins; Humans; Cell Line, Tumor; Animals; Oncogene Proteins, Fusion/metabolism; Oncogene Proteins, Fusion/genetics; Mice; RNA, Messenger/metabolism; RNA, Messenger/genetics; RNA-Binding Proteins/metabolism; RNA-Binding Proteins/genetics; Gene Expression Regulation, Neoplastic; Sarcoma, Ewing/genetics; Sarcoma, Ewing/metabolism; Sarcoma, Ewing/pathology; Proto-Oncogene Protein c-fli-1/metabolism; Proto-Oncogene Protein c-fli-1/genetics; RNA Stability/genetics; RNA-Binding Protein EWS/metabolism; RNA-Binding Protein EWS/genetics; Bone Neoplasms/genetics; Bone Neoplasms/metabolism
Abstract :
[en] Many cancers are defined by gene fusions that frequently encode oncogenic transcription factors (TFs), such as EWSR1::FLI1 in Ewing sarcoma (EwS). Here, we report that independently to its canonical roles in transcription, EWSR1::FLI1 also functions as an mRNA decay factor, reshaping mRNA stability in EwS. This function participates in EWSR1::FLI1 tumorigenicity and involves interactions of EWSR1::FLI1 with the CCR4-NOT deadenylation complex via its EWSR1-derived low-complexity domain and with the RNA-binding protein HuR/ELAVL1 via its FLI1-derived region. Strikingly, we find that EWSR1::FLI1-mediated mRNA decay antagonizes the normal mRNA protective function of HuR and renders EwS cells highly sensitive to HuR inhibition. Our findings uncover a post-transcriptional function of EWSR1::FLI1 and suggest that targeting mRNA stability mechanisms may offer therapeutic opportunities for EwS.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Galvan, Bartimée  ;  Université de Liège - ULiège > GIGA ; Division of Oncology and Children's Research Centre, University Children's Hospital Zurich, Zurich, Switzerland
Ongena, Loïc  ;  Université de Liège - ULiège > GIGA
Bruyr, Jonathan ;  Université de Liège - ULiège > GIGA > GIGA Molecular & Computational Biology - Gene Expression & Cancer
Fettweis, Grégory  ;  Université de Liège - ULiège > Département des sciences de la vie ; Laboratory of Receptor Biology and Gene Expression, National Cancer Institute, National Institutes of Health, Bethesda, USA
Lucarelli, Eva  ;  Université de Liège - ULiège > Département des sciences de la vie > Génétique et biologie moléculaires animales
Lavergne, Arnaud  ;  Université de Liège - ULiège > Département de gestion vétérinaire des Ressources Animales (DRA)
Mariavelle, Emeline ;  Université de Liège - ULiège > GIGA
O'Grady, Tina M ;  Laboratory of Gene Expression and Cancer, GIGA Institute, University of Liège (ULiège), Liège, Belgium ; Department of Pathology & Laboratory Medicine, Tulane University School of Medicine, New Orleans, USA
Hassoun, Zahrat El Oula  ;  Université de Liège - ULiège > GIGA ; Department of Integrative Structural and Computational Biology, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, USA
Claes, Margaux  ;  Université de Liège - ULiège > GIGA
Dubois, Laurence ;  Université de Liège - ULiège > GIGA
Lee, Kevin A W;  Division of Life Science, The Hong Kong University of Sci. & Tech, Clear Water Bay, Kowloon, Hong Kong SAR, China
Kruys, Véronique;  Laboratory of Molecular Biology of the Gene, Department of Molecular Biology, Free University of Brussels (ULB), 6041, Gosselies, Belgium
Gueydan, Cyril;  Laboratory of Molecular Biology of the Gene, Department of Molecular Biology, Free University of Brussels (ULB), 6041, Gosselies, Belgium
Durand, Jules;  Université Franche-Comté, INSERM, EFS BFC, UMR1098, « Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique », F-25000, Besançon, France ; EPIGENExp platform, Université Franche-Comté, F-25000, Besançon, France
Hervouet, Eric ;  Université Franche-Comté, INSERM, EFS BFC, UMR1098, « Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique », F-25000, Besançon, France ; EPIGENExp platform, Université Franche-Comté, F-25000, Besançon, France
Geyer, Florian H;  Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany ; National Center for Tumor Diseases (NCT), NCT Heidelberg, a partnership between DKFZ and Heidelberg University Hospital, Heidelberg, Germany ; Division of Translational Pediatric Sarcoma Research, German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany
Banito, Ana ;  Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany ; Soft-Tissue Sarcoma research group (B380), German Cancer Research Center (DKFZ), Heidelberg, Germany
Imle, Roland ;  Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany ; Soft-Tissue Sarcoma research group (B380), German Cancer Research Center (DKFZ), Heidelberg, Germany ; Department of pediatric Oncology, Hematology and Immunology, Heidelberg University Hospital, Heidelberg, Germany
Mao, Lianghao;  Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany ; National Center for Tumor Diseases (NCT), NCT Heidelberg, a partnership between DKFZ and Heidelberg University Hospital, Heidelberg, Germany ; Research Group Proteomics and Cancer Cell Signaling, Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
Jayavelu, Ashok K ;  Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany ; National Center for Tumor Diseases (NCT), NCT Heidelberg, a partnership between DKFZ and Heidelberg University Hospital, Heidelberg, Germany ; Research Group Proteomics and Cancer Cell Signaling, Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
Grünewald, Thomas G P ;  Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany ; National Center for Tumor Diseases (NCT), NCT Heidelberg, a partnership between DKFZ and Heidelberg University Hospital, Heidelberg, Germany ; Division of Translational Pediatric Sarcoma Research, German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany ; Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
Cidre-Aranaz, Florencia ;  Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany ; National Center for Tumor Diseases (NCT), NCT Heidelberg, a partnership between DKFZ and Heidelberg University Hospital, Heidelberg, Germany ; Division of Translational Pediatric Sarcoma Research, German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany
Twizere, Jean-Claude  ;  Université de Liège - ULiège > GIGA > GIGA Molecular & Computational Biology - Viral Interactomes Network
Dequiedt, Franck  ;  Université de Liège - ULiège > Département des sciences de la vie > Génétique et biologie moléculaires animales
More authors (15 more) Less
Language :
English
Title :
Subversion of mRNA degradation pathways by EWSR1::FLI1 represents a therapeutic vulnerability in Ewing sarcoma.
Publication date :
16 July 2025
Journal title :
Nature Communications
eISSN :
2041-1723
Publisher :
Nature, London, Gb
Volume :
16
Issue :
1
Pages :
6537
Peer reviewed :
Peer Reviewed verified by ORBi
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