Circ_0000253 promotes the progression of osteosarcoma via the miR-1236-3p/SP1 axis.
J Pharm Pharmacol
; 75(2): 227-235, 2023 Feb 08.
Article
en En
| MEDLINE
| ID: mdl-36444162
ABSTRACT
OBJECTIVE:
Circular RNAs (circRNAs) play important roles in modulating tumour progression. This study investigated the role of circ_0000253 in osteosarcoma (OS).METHODS:
We downloaded the chip dataset GSE140256 from the Gene Expression Omnibus database and the circRNAs differentially expressed in OS tissue and normal tissue samples were analysed. Quantitative real-time PCR (qRT-PCR) was carried out to examine circ_0000253 expression in OS tissues and cells. Cell counting kit-8, BrdU and flow cytometry assays were performed to verify the effects of circ_0000253 on OS cell growth and apoptosis. Bioinformatics analysis was conducted to predict, and RNA immunoprecipitation assay and dual-luciferase reporter gene assay were performed to verify the targeted relationships of miR-1236-3p with circ_0000253 and Sp1 transcription factor (SP1) mRNA 3'UTR. The effects of miR-1236-3p and circ_0000253 on SP1 expression in OS cells were detected through Western blot. KEYFINDINGS:
Circ_0000253 was upregulated in OS tissues and cell lines. Circ_0000253 overexpression facilitated OS cell growth and suppressed apoptosis, whereas knocking down circ_0000253 inhibited OS cell growth and facilitated apoptosis. Circ_0000253 targeted miR-1236-3p directly and negatively modulated its expression. SP1 was miR-1236-3p's target gene and positively regulated by circ_0000253.CONCLUSION:
Circ_0000253 promotes OS cell proliferation and suppresses cell apoptosis via regulating the miR-1236-3p/SP1 molecular axis.Palabras clave
Texto completo:
1
Colección:
01-internacional
Asunto principal:
Neoplasias Óseas
/
Osteosarcoma
/
MicroARNs
Tipo de estudio:
Prognostic_studies
Límite:
Humans
Idioma:
En
Revista:
J Pharm Pharmacol
Año:
2023
Tipo del documento:
Article
País de afiliación:
China