CircARL8B Contributes to the Development of Breast Cancer Via Regulating miR-653-5p/HMGA2 Axis.
Breast cancer
HMGA2
circARL8B
miR-653-5p
Journal
Biochemical genetics
ISSN: 1573-4927
Titre abrégé: Biochem Genet
Pays: United States
ID NLM: 0126611
Informations de publication
Date de publication:
Dec 2021
Dec 2021
Historique:
received:
17
01
2021
accepted:
15
05
2021
pubmed:
30
5
2021
medline:
14
1
2022
entrez:
29
5
2021
Statut:
ppublish
Résumé
Circular RNAs (circRNAs) act as essential regulators in breast cancer (BC) progression. In this paper, we aimed to investigate the functions of circARL8B in BC. The levels of circARL8B, ADP Ribosylation Factor Like GTPase 8B (ARL8B), miR-653-5p and high-mobility group AT-hook 2 (HMGA2) mRNA were examined by qRT-PCR. The stability of circARL8B was determined by RNase R assay and Actinomycin D assay. Cell viability and metastasis were evaluated by Cell Counting Kit-8 (CCK-8) assay and transwell assay, respectively. The levels of cellular phospholipids and triglycerides were measured using relevant kits. Protein levels were measured by western blot analysis. The association between miR-653-5p and circARL8B or HMGA2 was verified by dual-luciferase reporter assay. A murine xenograft model was established to explore the function of circARL8B in vivo. CircARL8B was increased in BC tissues and cells. CircARL8B silencing inhibited cell viability, migration, invasion and fatty acid metabolism in BC cells in vitro and blocked tumor growth in vivo. MiR-653-5p was identified as the target of circARL8B and miR-653-5p was negatively modulated by circARL8B. The suppressive role of circARL8B silencing in BC cell progression was abolished by miR-653-5p downregulation. Moreover, HMGA2 was the target gene of miR-653-5p. HMGA2 overexpression abrogated the effect of miR-653-5p on BC cell development. In addition, circARL8B knockdown might block PGE2/PI3K/AKT/GSK-3β/Wnt/β-catenin pathway. Silencing of circARL8B inhibited cell viability, migration, invasion and fatty acid metabolism via miR-653-5p/HMGA2 axis in BC.
Identifiants
pubmed: 34050452
doi: 10.1007/s10528-021-10082-7
pii: 10.1007/s10528-021-10082-7
doi:
Substances chimiques
HMGA2 Protein
0
HMGA2 protein, human
0
MIRN653 microRNA, human
0
MicroRNAs
0
RNA, Circular
0
Glycogen Synthase Kinase 3 beta
EC 2.7.11.1
ADP-Ribosylation Factors
EC 3.6.5.2
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1648-1665Subventions
Organisme : Guangdong Province Science and Technology Innovation Strategy Special Fund
ID : Shanfuke(2018) 157
Informations de copyright
© 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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