Arenobufagin suppresses the progression of early-stage hepatocellular carcinoma by inhibiting EpCAM-mediated tumor stemness

Epithelial cell adhesion molecule (EpCAM) is a biomarker for epithelial cell-derived tumors. However, the specific role of EpCAM itself in early-stage hepatocellular carcinoma progression remains unclear, and small molecules targeting EpCAM have not yet been reported. Here, the protein expression pr...

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Main Authors: Lijuan Deng, Lifang Zou, Chunhong Zhou, Fuqin Yang, Fen Ouyang, Yingru Zhu, Huihui Cao, Min Hu, Xiaoshen Zhang, Junshan Liu
Format: Article
Language:English
Published: Compuscript Ltd 2025-01-01
Series:Acta Materia Medica
Online Access:https://www.scienceopen.com/hosted-document?doi=10.15212/AMM-2024-0064
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author Lijuan Deng
Lifang Zou
Chunhong Zhou
Fuqin Yang
Fen Ouyang
Yingru Zhu
Huihui Cao
Min Hu
Xiaoshen Zhang
Junshan Liu
author_facet Lijuan Deng
Lifang Zou
Chunhong Zhou
Fuqin Yang
Fen Ouyang
Yingru Zhu
Huihui Cao
Min Hu
Xiaoshen Zhang
Junshan Liu
author_sort Lijuan Deng
collection DOAJ
description Epithelial cell adhesion molecule (EpCAM) is a biomarker for epithelial cell-derived tumors. However, the specific role of EpCAM itself in early-stage hepatocellular carcinoma progression remains unclear, and small molecules targeting EpCAM have not yet been reported. Here, the protein expression profile of EpCAM in tumor-adjacent regions was found to be higher than that in tumor regions, and to be positively associated with the progression of early-stage liver cancer, as well as high frequency of recurrence, cirrhosis, lymph node metastasis, microvascular invasion and cancer stemness, in 68 patients with hepatocellular carcinoma (HCC). In vitro , EpCAM enhanced cancer cell stemness, as reflected by increased abilities of proliferation, self-renewal, migration and invasion, which was counteracted by arenobufagin. Furthermore, arenobufagin inhibited the viability of Hep3B and Huh7 cells with IC 50 values of 36.4 nM and 123.4 nM after 72 h of treatment, respectively. Molecular docking data further indicated that arenobufagin binds EpCAM. Moreover, arenobufagin inhibited early progression of HCC through EpCAM in a zebrafish xenograft tumor model mimicking early-stage hepatocellular carcinoma without blood vessels in vivo . This study supports a tumor-promoting role of EpCAM in early-stage hepatocellular carcinoma by facilitating cancer stemness and suggests that arenobufagin might be promising candidate for EpCAM inhibition.
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id doaj-art-6e83e15ca1e24aa6944288aecd21f14c
institution Kabale University
issn 2737-7946
language English
publishDate 2025-01-01
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series Acta Materia Medica
spelling doaj-art-6e83e15ca1e24aa6944288aecd21f14c2025-01-17T17:00:11ZengCompuscript LtdActa Materia Medica2737-79462025-01-0141829810.15212/AMM-2024-0064Arenobufagin suppresses the progression of early-stage hepatocellular carcinoma by inhibiting EpCAM-mediated tumor stemnessLijuan DengLifang ZouChunhong ZhouFuqin YangFen OuyangYingru ZhuHuihui CaoMin HuXiaoshen ZhangJunshan LiuEpithelial cell adhesion molecule (EpCAM) is a biomarker for epithelial cell-derived tumors. However, the specific role of EpCAM itself in early-stage hepatocellular carcinoma progression remains unclear, and small molecules targeting EpCAM have not yet been reported. Here, the protein expression profile of EpCAM in tumor-adjacent regions was found to be higher than that in tumor regions, and to be positively associated with the progression of early-stage liver cancer, as well as high frequency of recurrence, cirrhosis, lymph node metastasis, microvascular invasion and cancer stemness, in 68 patients with hepatocellular carcinoma (HCC). In vitro , EpCAM enhanced cancer cell stemness, as reflected by increased abilities of proliferation, self-renewal, migration and invasion, which was counteracted by arenobufagin. Furthermore, arenobufagin inhibited the viability of Hep3B and Huh7 cells with IC 50 values of 36.4 nM and 123.4 nM after 72 h of treatment, respectively. Molecular docking data further indicated that arenobufagin binds EpCAM. Moreover, arenobufagin inhibited early progression of HCC through EpCAM in a zebrafish xenograft tumor model mimicking early-stage hepatocellular carcinoma without blood vessels in vivo . This study supports a tumor-promoting role of EpCAM in early-stage hepatocellular carcinoma by facilitating cancer stemness and suggests that arenobufagin might be promising candidate for EpCAM inhibition.https://www.scienceopen.com/hosted-document?doi=10.15212/AMM-2024-0064
spellingShingle Lijuan Deng
Lifang Zou
Chunhong Zhou
Fuqin Yang
Fen Ouyang
Yingru Zhu
Huihui Cao
Min Hu
Xiaoshen Zhang
Junshan Liu
Arenobufagin suppresses the progression of early-stage hepatocellular carcinoma by inhibiting EpCAM-mediated tumor stemness
Acta Materia Medica
title Arenobufagin suppresses the progression of early-stage hepatocellular carcinoma by inhibiting EpCAM-mediated tumor stemness
title_full Arenobufagin suppresses the progression of early-stage hepatocellular carcinoma by inhibiting EpCAM-mediated tumor stemness
title_fullStr Arenobufagin suppresses the progression of early-stage hepatocellular carcinoma by inhibiting EpCAM-mediated tumor stemness
title_full_unstemmed Arenobufagin suppresses the progression of early-stage hepatocellular carcinoma by inhibiting EpCAM-mediated tumor stemness
title_short Arenobufagin suppresses the progression of early-stage hepatocellular carcinoma by inhibiting EpCAM-mediated tumor stemness
title_sort arenobufagin suppresses the progression of early stage hepatocellular carcinoma by inhibiting epcam mediated tumor stemness
url https://www.scienceopen.com/hosted-document?doi=10.15212/AMM-2024-0064
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