MicroRNA-543 suppresses liver cancer growth and induces apoptosis via the JAK2/STAT3 signaling pathway

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Abstract

The aim of the present study was to investigate the function of microRNA-543 on liver cancer cell proliferation and apoptosis, and also to identify whether the Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) signaling pathway was a direct target of microRNA-543. When compared with paracarcinoma tissue, microRNA-543 expression in tissue samples from patients with liver cancer was identified to be decreased. Furthermore, overall survival of patients with high microRNA-543 expression was increased compared with patients with low microRNA-543 expression. Inhibition of microRNA-543 expression increased cell proliferation and decreased apoptosis of liver cancer cells. It also activated the protein expression of phosphorylated JAK2, phosphorylated STAT3, c-Myc and B-cell lymphoma 2 (Bcl-2) in liver cancer cells. However, activation of microRNA-543 expression in turn decreased cell proliferation and increased apoptosis of liver cancer cells. The results of the present study highlight the pivotal function of microRNA-543 as an inhibitor in liver cancer cell proliferation by observing JAK2/STAT3/c-Myc/Bcl-2 in liver cancer.

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Xiu, D., Wang, D., Wang, J., Ji, F., & Zhang, W. (2019). MicroRNA-543 suppresses liver cancer growth and induces apoptosis via the JAK2/STAT3 signaling pathway. Oncology Letters, 17(2), 2451–2456. https://doi.org/10.3892/ol.2018.9838

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