LINC01320 facilitates cell proliferation and migration of ovarian cancer via regulating PURB/DDB2/NEDD4L/TGF-β axis.
Humans
Female
Ovarian Neoplasms
/ pathology
Cell Proliferation
RNA, Long Noncoding
/ genetics
Cell Movement
/ genetics
Transforming Growth Factor beta
/ metabolism
Gene Expression Regulation, Neoplastic
DNA-Binding Proteins
/ metabolism
Cell Line, Tumor
Nedd4 Ubiquitin Protein Ligases
/ metabolism
Signal Transduction
Animals
Mice
Mice, Nude
DDB2
LINC01320
Ovarian cancer
PURB
TGF-β signaling pathway
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
31 Oct 2024
31 Oct 2024
Historique:
received:
27
07
2024
accepted:
29
10
2024
medline:
1
11
2024
pubmed:
1
11
2024
entrez:
1
11
2024
Statut:
epublish
Résumé
Ovarian cancer (OC) is one of the most prevalent and lethal malignancies affecting the female reproductive system, due to its tendency for metastasis and recurrence. This study identified the overexpression of LINC01320 (or long intergenic nonprotein coding RNA 1320) in tissues of ovarian cancer through the analysis of patient samples and online datasets. In vitro and in vivo experiments demonstrate that silencing of LINC01320 expression led to inhibition of proliferation and metastasis of OC cells. RNA pull-down followed by liquid chromatography tandem mass spectrometry (RNA pull-down-LC-MS/MS) revealed that LINC01320 interacted with purine-rich element binding protein B (PURB), a transcriptional repressor. Furthermore, the RNA-seq analysis identified damage-specific DNA binding protein 2 (DDB2) as a major common target of LINC01320 and PURB. Mechanistically, LINC01320 could recruit PURB to the promoter region of DDB2 to repress DDB2 transcription; thus, promoting the expression of NEDD4L and impeding the TGF-β/SMAD signaling pathway, and ultimately facilitating the progression of OC. Finally, rescue experiments confirmed the involvement of the DDB2/NEDD4L/TGF-β axis in LINC01320-mediated OC progression. In conclusion, this study unveils for the first time the pivotal function of the LINC01320/PURB/DDB2/NEDD4L/TGF-β axis and explores its prospective clinical implications in OC.
Identifiants
pubmed: 39482389
doi: 10.1038/s41598-024-78255-z
pii: 10.1038/s41598-024-78255-z
doi:
Substances chimiques
RNA, Long Noncoding
0
Transforming Growth Factor beta
0
DNA-Binding Proteins
0
Nedd4 Ubiquitin Protein Ligases
EC 2.3.2.26
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
26233Subventions
Organisme : Suzhou Gu Su Health Talent Research Project
ID : GSWS2023056
Informations de copyright
© 2024. The Author(s).
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