Germline-specific RNA helicase DDX4 forms cytoplasmic granules in cancer cells and promotes tumor growth.
CP: Cancer
CP: Molecular biology
DDX4
RNA regulation
RNP granules
cancer
cancer-germline antigens
tumor growth
Journal
Cell reports
ISSN: 2211-1247
Titre abrégé: Cell Rep
Pays: United States
ID NLM: 101573691
Informations de publication
Date de publication:
03 Jul 2024
03 Jul 2024
Historique:
received:
12
11
2023
revised:
15
05
2024
accepted:
18
06
2024
medline:
4
7
2024
pubmed:
4
7
2024
entrez:
4
7
2024
Statut:
aheadofprint
Résumé
Cancer cells undergo major epigenetic alterations and transcriptomic changes, including ectopic expression of tissue- and cell-type-specific genes. Here, we show that the germline-specific RNA helicase DDX4 forms germ-granule-like cytoplasmic ribonucleoprotein granules in various human tumors, but not in cultured cancer cells. These cancerous DDX4 complexes contain RNA-binding proteins and splicing regulators, including many known germ granule components. The deletion of DDX4 in cancer cells induces transcriptomic changes and affects the alternative splicing landscape of a number of genes involved in cancer growth and invasiveness, leading to compromised capability of DDX4-null cancer cells to form xenograft tumors in immunocompromised mice. Importantly, the occurrence of DDX4 granules is associated with poor survival in patients with head and neck squamous cell carcinoma and higher histological grade of prostate cancer. Taken together, these results show that the germ-granule-resembling cancerous DDX4 granules control gene expression and promote malignant and invasive properties of cancer cells.
Identifiants
pubmed: 38963760
pii: S2211-1247(24)00759-9
doi: 10.1016/j.celrep.2024.114430
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
114430Informations de copyright
Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests The authors declare no competing interests.