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Chinese Journal of Gastroenterology ; (12): 193-199, 2023.
Article in Chinese | WPRIM | ID: wpr-1016027

ABSTRACT

Background: ZNF460 is a member of the zinc finger protein family transcription factors, and is involved in the regulation of a variety of cellular functions. It has been demonstrated to be closely related to digestive system cancers. Aims: To analyze the expression level of ZNF460 in hepatocellular carcinoma (HCC), and explore the effect and potential mechanisms of ZNF460 on tumor cell proliferation. Methods: Immunohistochemical staining was used to determine the expression level of ZNF460 in tissue microarray of 76 HCC and paired adjacent tissues, and the correlation between ZNF460 expression and TNM staging was analyzed. The effect of ZNF460 on HCC cell proliferation was evaluated by CCK‑ 8 and colony formation assays. Genes positively related to ZNF460 expression in HCC were screened through LinkedOmics database, and the KEGG and GSEA pathway enrichment analyses were performed; the possible downstream molecules of ZNF460 were explored and verified by overexpression or knockdown of ZNF460 in HCC cells combined with luciferase reporter assay and other experiments. Results: ZNF460 was highly expressed in HCC and was positively correlated with TNM staging. ZNF460 promoted the proliferation of HCC cells, and the underlying mechanism might be associated with the transcriptional activation of ZDHHC7, the coding gene of palmitoyl transferase DHHC7 and the subsequent STAT3 palmitoylation and phosphorylation. Conclusions: ZNF460 is highly expressed in HCC and promotes cell proliferation and tumor progression via STAT3 activation. It might be a promising molecular marker and therapeutic target for HCC.

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