Abstract：
BACKGROUND:Gastric cancer (GC) is one of the most common digestive tract tumors, and a serious threat to human health. Long non-coding RNA (lncRNA) are involved in many cancers. However, the biological functions of most lncRNAs are unclear. In this study, we investigated the mechanisms by which FLVCR1-AS1 regulated GC progression. METHODS:FLVCR1-AS1 expression in GC tissues and 3 GC cell lines were measured by quantitative real-time PCR (qRT-PCR). Invasion, proliferation, and apoptosis profiles were analyzed by commercial assays to determine the biological functions of FLVCR1-AS1 in GC cells. The binding sites of micro RNA-155 (miR-155) on FLVCR1-AS1 were predicted using the miRDB program. Luciferase reporter assay was used to validate direct targeting of FLVCR1-AS1 by miR-155. The effects of FLVCR1-AS1 on expressions of c-Myc and p21 were assessed by western blotting. In vivo experiments were performed to analyze the effects of FLVCR1-AS1 on GC tumor growth. RESULTS:High expression of FLVCR1-AS1 correlated with poor clinical outcomes and prognosis in patients with GC. FLVCR1-AS1 promoted proliferation and invasion of GC cells by acting as a ceRNA to sponge miR-155. CONCLUSION:FLVCR1-AS1 acted as an oncogene in GC via FLVCR1-AS1-miR-155-c-Myc signaling and may serve as a novel therapeutic target for treatment of patients with GC.
journal_name
Am J Transl Resjournal_title
American journal of translational researchauthors
Liu Y,Guo G,Zhong Z,Sun L,Liao L,Wang X,Cao Q,Chen Hsubject
Has Abstractpub_date
2019-02-15 00:00:00pages
793-805issue
2issn
1943-8141journal_volume
11pub_type
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