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  • Title: Long non-coding RNA DCST1-AS1/hsa-miR-582-5p/HMGB1 axis regulates colorectal cancer progression.
    Author: Huang L, Dai G.
    Journal: Bioengineered; 2022 Jan; 13(1):12-26. PubMed ID: 34967274.
    Abstract:
    Long non-coding RNAs (lncRNAs) are related to the initiation and progression of tumor and regulate various cellular processes including growth, invasion, migration, and apoptosis. Understanding the roles and mechanisms of lncRNAs in regulating cancer progression is crucial for formulating novel therapeutic strategies. Although lncRNA DCST1-antisense RNA 1(AS1) has been implicated in several cancers, its role in the progression of colorectal cancer (CRC) remains to be explored. This study focuses on elucidating the function of lncRNA DCST1-AS1 in CRC development and its underlying mechanism. We found that the expression of lncRNA DCST1-AS1 was up-regulated in CRC tissues and cell lines, and CRC patients with high lncRNA DCST1-AS1 expression were associated with a poor prognosis. Loss-of-function and gain-of-function experiment in CRC cell lines confirmed that lncRNA DCST1-AS1 promoted the malignant phenotype of CRC cells, including cell proliferation, colony formation, migration, and invasion. In addition, we identified the binding sites between lncRNA DCST1-AS1 and hsa-miR-582-5p, and between hsa-miR-582-5p and High Mobility Group Box 1 (HMGB1) through DIANA Tools and TargetScan database, which was further confirmed by dual-luciferase reporter assay. Functional assay further confirmed the crucial role of lncRNA DCST1-AS1/hsa-miR-582-5p/HMGB1 axis in modulating the malignant phenotype of CRC cells. Collectively, our data suggest that lncRNA DCST1-AS1 regulates the aggressiveness of CRC cells through hsa-miR-582-5p/HMGB1 axis. Our study provides novel insight into the mechanism of lncRNA DCST1-AS1 in CRC cells for targeted therapy.
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