MOR/ERK signalling pathway promotes the malignant progression of residual hepatocellular carcinoma cells after insufficient radiofrequency ablation

Authors

  • Qianxi Yin College of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China.
  • Fengjuan Li Baotou Central Hospital, Baotou, Inner Mongolia 014040, China.
  • Feiyan Gao College of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China.
  • Xiaoying He College of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China; Inner Mongolia Key Laboratory of Life Health and Bioinformatics, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China.
  • Ying Liu College of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China; Inner Mongolia Key Laboratory of Life Health and Bioinformatics, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China.
  • Yang Liu College of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China; Inner Mongolia Key Laboratory of Life Health and Bioinformatics, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China.
  • Jiwei Liu College of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China; Inner Mongolia Key Laboratory of Life Health and Bioinformatics, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China.
  • Shujun Liu College of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China; Inner Mongolia Key Laboratory of Life Health and Bioinformatics, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China.
  • Guoqun Jia The First Hospital Affiliated to Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China.
  • Libing Ma College of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China; Inner Mongolia Key Laboratory of Life Health and Bioinformatics, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China.

DOI:

https://doi.org/10.22317/jcms.v11i2.1691

Keywords:

μ-opioid receptor, hepatocellular carcinoma, radiofrequency ablation, ERK

Abstract

Objective: Radiofrequency ablation (RFA) is the first-line of treatment for unresectable early hepatocellular carcinoma (HCC). However, the accelerated malignancy progression of residual HCC cells post-RFA pose a major obstacle to its clinical application. The mechanisms underlying the increased malignancy of residual HCC cells following RFA require further investigation.

Methods: In the present study, HepG2 cells, an established human HCC cell line, were subjected to  repeated heat treatment to simulate residual HCC cells after RFA, surviving cells were designated as HepG2-H cells. Malignancy parameters and μ-opioid receptor (MOR) expression levels were compared between HepG2 and HepG2-H cells. RNA sequencing was subsequently performed to identify differentially expressed genes (DEGs) between the two groups of cells, and pathways enrichment analysis was conducted to investigate signaling pathways potentially driving HepG2-H cells malignancy.

Results: HepG2-H cells exhibited significantly elevated malignancy compared to HepG2 cells, as evidenced by enhanced proliferation, migration, and colony formation. MOR expression was significantly upregulated in HepG2-H cells. RNA sequencing revealed that DEGs between the two groups were predominantly enriched in cancer pathways. Furthermore, phosphorylated ERK1/2 (P-ERK1/2) levels were 1.18-fold higher in HepG2-H cells, and the inhibition of MOR activity could reduce both the level of P-ERK1/2 and the malignancy of HepG2-H cells.

Conclusion: Our findings suggest that the activation of MOR/ERK signaling pathway contributes to the malignant progression of residual HCC cells post-RFA. Targeting MOR may offer a novel therapeutic strategy to mitigate tumor recurrence following RFA.

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Published

2025-04-26

How to Cite

Yin, Q., Li, F., Gao, F., He, X., Liu, Y., Liu, Y., … Ma, L. (2025). MOR/ERK signalling pathway promotes the malignant progression of residual hepatocellular carcinoma cells after insufficient radiofrequency ablation. Journal of Contemporary Medical Sciences, 11(2). https://doi.org/10.22317/jcms.v11i2.1691