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The dysregulation of microRNAs (miRNAs) is associated with the development and progression of a variety of cancers, including liver cancer. Aberrant expression of miRNA (miR)‑124 has been demonstrated in liver cancer, but its functional mechanism in liver cancer is still largely unknown. Metastasis of liver cancer is one of the most common causes of mortality. The present study showed that miR‑124 inhibited the proliferation, migration and invasion of liver cancer cells. Furthermore, chloride intracellular channel 1 (CLIC1) was identified as a novel target of miR‑124 in liver cancer cells. Overexpression of miR‑124 reduced CLIC1 expression at both the protein and mRNA levels in liver cancer cells. Downregulation of CLIC1 decreased the migration and invasion of liver cancer cells without affecting cell proliferation. Taken together, these results showed that CLIC1 is a critical target for miR‑124‑mediated inhibitory effects on cell migration and invasion. Thus, miR‑124 or suppression of CLIC1 may have diagnostic value and therapeutic potential for the treatment of human liver cancer.

MicroRNA‑124 negatively regulates chloride intracellular channel�1 to suppress the migration and invasion of liver cancer cells