Hsa_circ_0000285 contributes to gastric cancer progression by upregulating FN1 through the inhibition of miR‐1278. Issue 6 (9th May 2022)

• Record Type: Journal Article
• Authors: Wang, Xue; Tan, Mao; Huang, He; Zou, Yanlei; Wang, Mengqiao
• Is Part Of: Journal of clinical laboratory analysis. Volume 36:Issue 6(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-05-09
• Subjects: circRNA -- FN1 -- gastric cancer -- hsa_circ_0000285 -- miR‐1278; Diagnosis, Laboratory -- Periodicals; Medical laboratory technology -- Periodicals; 616
• DOI: 10.1002/jcla.24475
• Languages: English
• ISSNs: 0887-8013

Abstract

Abstract: Background: Gastric cancer (GC) is one of the most severe cancers worldwide, particularly in China. Circular RNA (circRNA) plays an essential role in GC. Hsa_circ_0000285 regulates the progression of several cancers. However, its role in GC has not been reported. This study elucidated the molecular mechanism and role of hsa_circ_0000285 in GC progression. Methods: GC cells were transfected with silencers of hsa_circ_0000285 and fibronectin 1 ( FN1 ), an inhibitor of miR‐1278, and their negative controls (NC). Mice were injected with short hairpin (sh) RNAs targeting hsa_circ_0000285 or NC. The expression levels of hsa_circ_0000285, miR‐1278, and FN1 were assessed using western blotting and reverse transcription quantitative real‐time polymerase chain reaction (qRT‐PCR). Several assays were used to evaluate cell proliferation, invasion, and apoptosis. Tumor burden was also analyzed. The interactions between miR‐1278, hsa_circ_0000285, and FN1 were ascertained using dual‐luciferase reporter assays. An RNA immunoprecipitation (RIP) assay was used to assess the enrichment of hsa_circ_0000285 and miR‐1278 in GC. Results: Hsa_circ_0000285 was significantly overexpressed in the GC tissues. Silencing hsa_circ_0000285 inhibited cell proliferation and invasion, promoted apoptosis, and inhibited tumor development. Hsa_circ_0000285 sponged miR‐1278. Inhibition of miR‐1278 in vitro reversed the effects of hsa_circ_0000285 silencing on GC progression. MiR‐1278 targeted FN1, and silencing FN1 neutralized the effects of miR‐1278 inhibitors on GC progression. Conclusions: The hsa_circ_0000285 /miR‐1278/ FN1 axis regulated GC progression. In addition, it may serve as a potential therapeutic biomarker for GC. Abstract : In gastric cancer (GC), circ_0000285 suppresses miR‐1278 via sponging effects, and miR‐1278 suppresses FN1 expression via binding to its 3'UTR. Circ_0000285 regulates the miR‐1278/FN1 axis to promote GC cell malignant behaviors in GC development.