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發表期刊：Journal of Ethnopharmacology

發表時間：2025

Abstract:

Ethnopharmacological relevance

Glycyrrhiza uralensis Fisch. (GC) is widely utilized in traditional Chinese medicine (TCM) for its properties in Qi tonification, heat clearing, and detoxification. Within TCM theory, Qi is also implicated in tumor development. Numerous TCM formulas containing GC are used for their anti-tumor effects, and contemporary pharmacological research has demonstrated that ethyl acetate extracts (EAe) of GC, along with potential bioactive compounds like glabridin (Gla), possess anti-tumor properties. Hepatocellular carcinoma (HCC) is the sixth most common cancer worldwide and a major challenge to global healthcare, with high incidence and poor prognosis. Nevertheless, the effects and mechanisms of action of Gla in inhibiting HCC have not been extensively studied.

Aim of study

This study aims to elucidate the effects and mechanisms of action of Gla against HCC by in vitro and in vivo experiments.

Methods

The inhibitory effects of ethyl acetate extract (EAe) of GC and its bioactive compounds on HCC were studied using a drug-cell interaction system equipped with UPLC-MS/MS and high-throughput screening methods in vitro. RNA sequencing (RNA-seq) and bioinformatics technologies were employed to detect the differentially expressed genes (DEGs) and pathways in HepG2 cells. The findings were further validated using quantitative real-time PCR (qPCR) and Western blot (WB) assays. Additionally, an in vivo tumor-bearing mouse model established with H22 cells was utilized to examine alterations in tumor tissues via hematoxylin-eosin (HE) staining. Immunohistochemistry was used to assess the protein expression levels of hub targets within each group.

Results

Both in vitro and in vivo experiments demonstrated the effects of EAe against HCC, identifying Gla was one of its main bioactive compounds. Integration of RNA-seq data with clinical databases revealed that Gla inhibited HCC by up-regulating the expression levels of DUSP5, ZFP36, KLF10, and NR4A1, while down-regulating RMI2 expression. These findings were further validated by Gene Expression Omnibus (GEO), qPCR, WB and immunohistochemistry assays.

Conclusions

Gla regulates the expression levels of DUSP5, ZFP36, KLF10, NR4A1, and RMI2 to against HCC, providing valuable insights for the application of Gla in HCC treatment.

https://doi.org/10.1016/j.jep.2024.119022