Background: As a new class of non-coding RNAs, circRNAs have been recently reported to be involved in the tumorigenesis and progression of human cancers. In the current study, we attempted to explore the potential function of a novel circRNA (hsa_circ_0013290) in hepatocellular carcinoma (HCC).
Methods: Relative hsa_circ_0013290 expression was analyzed by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). The subcellular location of hsa_circ_0013290 was performed by RNA subcellular isolation and fluorescence in situ hybridization (FISH) assays. The effect of hsa_circ_0013290 on proliferation was detected by Cell Counting Kit-8 (CCK-8) assays. The effect of hsa_circ_0013290 on cell cycle distribution and apoptosis was detected by flow cytometry. The invasion and migration abilities of hsa_circ_0013290 were detected by transwell assays.
Results: Hsa_circ_0013290 is significantly upregulated in HCC cell lines and mainly located in cytoplasm of HCC cells. Hsa_circ_0013290 overexpression promotes cell invasion and migration and inhibits cell apoptosis. In contrast, hsa_circ_0013290 knockdown impedes cell invasion and migration and accelerates cell apoptosis. However, hsa_circ_0013290 did not affect cell proliferation.
Conclusions: Hsa_circ_0013290 is overexpressed in HCC cell lines and is mainly located in the cytoplasm of HCC cells. Hsa_circ_0013290 promotes cell invasion and migration, and inhibits cell apoptosis.
Keywords: apoptosis; cell proliferation; hepatocellular carcinoma; hsa_circ_0013290; metastasis.