In order to reveal circular RNAs (circRNAs) differential expression profiles and investigate the function and mechanism of circRNAs in the metastasis of salivary adenoid cystic carcinoma (SACC), microarray was used to detect differentially expressed circRNAs in SACC-83 and SACC-lung metastasis (LM) cell lines. Up-regulated circRNAs were analyzed using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses to further predict their function. Expression of candidate circRNA and microRNA (miRNA) was determined using quantitative real-time polymerase chain reaction (qRT-PCR). Constructed circRNA–miRNA–mRNA co-expression network was based on TargetScan, miRanda databases. Wound healing and transwell assays were completed to examine the effects of hsa_circRNA_001982 and miR-181a-5p on cell migration and invasion. qRT-PCR confirmed hsa_circRNA_092556, hsa_circRNA_101379, and hsa_circRNA_001982 up-regulation in SACC-LM. miR-181a-5p was down-regulated in SACC-LM and correlated with up-regulated hsa_circRNA_001982. Wound healing and transwell assays indicated that silencing hsa_circRNA_001982 inhibited the migration and invasion of the SACC-LM cells. Furthermore, over-expression of hsa_circRNA_001982 promoted the migration and invasion of SACC-83 cells. Interestingly, up-regulation or down-regulation of miR-181a-5p led to the opposite result in wound healing and transwell assays. Overall, differential expression circRNA profiles in SACC-83 and SACC-LM cells may reveal potential targets and a novel mechanism of circRNAs in the metastasis of SACC. Moreover, the interaction of hsa_circRNA_001982/miR-181a-5p is closely related to the metastasis of SACC cells.
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The data that support the findings of this study are available from the corresponding author upon reasonable request.
Salivary adenoid cystic carcinoma
Kyoto Encyclopedia of Genes and Genomes
Quantitative real-time polymerase chain reaction
Fetal bovine serum
Small interfering RNAs
MiRNA response elements
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The authors sincerely appreciate all members participated in this work.
This study was supported by Grants from the National Nature Science Foundation of China (Nos. 31570950, 10502037 and 31070833), the Science and Technology Foundation of Sichuan Province (Nos. 2017SZ0032, 2010GZ0225, 2011GZ0335 and 2009SZ0139), and National Key Research and Development Program of China (No. 2016YFC1101404).
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Ju, R., Huang, Y., Guo, Z. et al. The circular RNAs differential expression profiles in the metastasis of salivary adenoid cystic carcinoma cells. Mol Cell Biochem 476, 1269–1282 (2021). https://doi.org/10.1007/s11010-020-03989-z
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