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  • Title: Alkannin restrains oral squamous carcinoma cell growth, migration and invasion by regulating microRNA-9/RECK axis.
    Author: Mao Y, Zhang W, Zhang R, Zuo J.
    Journal: Artif Cells Nanomed Biotechnol; 2019 Dec; 47(1):3153-3162. PubMed ID: 31349748.
    Abstract:
    Alkannin (ALK) has anti-inflammatory and anti-tumour activities. We tried to probe the underlying functions of ALK in oral squamous carcinoma (OSCC) cells growth, migration and invasion. OSCC cells viability was investigated after treatment with ALK. Then, BrdU, flow cytometry, Western blot and Transwell assays were executed to appraise proliferation, apoptosis, migration and invasion in OSCC cells with ALK stimulation. The biological functions of miR-9 were explored after miR-9 mimic/inhibitor transfection. The relevance of RECK and miR-9 was predicated by dual luciferase activity assay. JAK1/STAT3 and PI3K/AKT pathways were estimated by Western blot. Tumour formation in vivo was executed by xenograft tumours assay. We found that ALK restrained cell proliferation, facilitated apoptosis, repressed migration and invasion also interdicted JAK1/STAT3 and PI3K/AKT pathways in CAL-27 and SCC-9 cells. miR-9 expression was upgraded in OSCC tissues but decreased in OSCC cells along with ALK administration; meanwhile, overexpressed miR-9 inverted the influences of ALK in OSCC cells growth, migration and invasion. RECK was predicated as a novel target gene of miR-9, and overexpressed RECK hindered JAK1/STAT3 and PI3K/AKT pathways in OSCC cells. ALK prohibited tumour formation in vivo. In conclusion, ALK restrained OSCC cells growth, migration and invasion via adjusting miR-9/RECK axis. Highlights ALK restrains cell growth, migration and invasion in OSCC cells; miR-9 is enhanced in OSCC tissues but is repressed by ALK in OSCC cells; miR-9 inverts the repressive effect of ALK on CAL-27 and SCC-9 cells; RECK is a novel target of miR-9; ALK or RECK hinders JAK1/STAT3 and PI3K/AKT pathways in CAL-27 and SCC-9 cells; ALK prohibits tumour formation in vivo.
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