LncRNA NEAT1 Promotes the Cancer Stem Cell-Like Properties of HCC by miR-128-3p/GP73 Axis

Ye Yuan, Xujing Zhang,Zhisu Liu

Journal of Biomedical Nanotechnology(2024)

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摘要
In this study, we investigated the role of long non-coding RNA NEAT1 in hepatocellular carcinoma (HCC) and its impact on liver cancer cell behavior, particularly their cancer stem cell (CSC)-like properties. We observed elevated NEAT1 levels in HCC cell lines and tissues, and this upregulation was associated with adverse clinical characteristics and poor prognosis in HCC patients. Through in vitro experiments, we found that silencing NEAT1 in HCC cells led to decreased cell proliferation, migration, invasion, and inhibited epithelial-mesenchymal transition (EMT) in Huh7 cells. Additionally, the unique surface markers of CSCs were downregulated upon NEAT1 knockdown. Further investigation revealed that NEAT1 regulates the expression of GP73 by directly binding to miR-128-3p, functioning as a competitive ceRNA to suppress miR-128-3p expression. Rescue experiments showed that inhibiting miR-128-3p expression reversed the effects of NEAT1 knockdown on HCC cell proliferation,migration, and invasion. In summary, our findings demonstrate that lncRNA NEAT1 plays a pivotal role in promoting HCC progression and enhancing CSC properties by upregulating GP7 through competitive binding to miR-128-3p. This insight into the underlying mechanism may have promising implications for the treatment of HCC.
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