Targeting liver cancer stem cell through EpCAM therapy targeted with chemotherapy endorse enhanced progression in hepatocellular carcinoma

The liver is a vital organ in vertebrates. It plays a chief role with more than 400 functions, including producing plasma protein, controlling homeostasis, glycogen, lipid storage, albumin, bilirubin production, detoxification of xenobiotics, and vital roles in metabolism.
Targeting liver cancer stem cell through EpCAM therapy targeted with chemotherapy endorse enhanced progression in hepatocellular carcinoma
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SpringerOpen

Targeting liver cancer stem cell through EpCAM therapy targeted with chemotherapy endorse enhanced progression in hepatocellular carcinoma - Egyptian Liver Journal

Background Two chief hurdles in most cancer treatments are chemoresistance and tumor recurrence, especially counting hepatocellular carcinoma (HCC). Most conformist chemotherapy fails to completely cure HCC patients because of its susceptibility to develop multidrug resistance (MDR) through factors such as hypoxia, cancer stem cells, and drug efflux mechanism cancer stem cells (CSC) which are significant factors involved in chemoresistance. It has been exposed that targeting liver cancer stem cells and chemotherapeutic drugs have a better selected, overall survival rate for hepatocellular carcinoma patients. Aim This study aims to investigate the effectiveness of targeting stem cells for liver cancer using a therapy that targets EpCAM in combination with chemotherapy and how this approach can enhance the treatment outcomes in hepatocellular carcinoma, the most prevalent kind of liver cancer. Results The outcome was studied by flow cytometry, Western blot, RT-PCR, and cytotoxicity assays. EpCAM gene silenced and XAV939-treated cells showed decreased expression of CD133, a liver cancer stem cell (LCSC) marker in flow cytometry analysis, and reduced expression of ABCG2 gene, which is a reliable marker for chemoresistance in RT-PCR and western blot analysis; it was also unable to form colonies in colony forming assay. Similarly, in the spheroid formation assay, EpCAM gene silenced cells and XAV939-treated cells in combinations with cisplatin treatment were powerless to appear spheroid, whereas cisplatin alone-treated cells showed spheroids. In the cytotoxicity assay, cisplatin alone and combined with EpCAM silenced and XAV939-treated cells showed more lactate dehydrogenase (LDH) release than EpCAM silenced arm XAV939 treated components. Conclusion These findings confirm our hypothesis that conventional chemotherapy kills cancer cells but not cancer stem cells. We believe EpCAM-targeted therapy enhances chemosensitivity and decreases relapsed chances. This approach might be the best option for a better prognosis for hepatocellular carcinoma patients.

EpCAM-targeted therapy such as sh-EpCAM and XAV939 were proven to be potential inhibitors of liver cancer stem cells by inhibiting colony formation, invasion properties, and decreased expression of ABCG2, the gene responsible for chemoresistance. The LCSC expression and spheroid formation were drastically reduced in single and combination cisplatin, and EpCAM-targeted therapy. Overall, targeting EpCAM with therapies such as sh-EpCAM and XAV939 shows promise as a potential treatment for liver cancer, although further exploration is needed to regulate their efficacy and safety in clinical trials. These studies imply that combining cisplatin and EpCAM-targeted therapy may benefit both and improve cancer treatment outcomes. More research is required to determine the ideal dose, schedule, and patient selection for this combination therapy approach. It would be necessary to conduct further research to determine whether combining XAV939, EpCAM knockdown, and cisplatin could synergistically affect stem cell populations. A well-designed controlled study with appropriate sample size, randomisation, and statistical analysis is typically required to determine whether the combination of cisplatin and a specific drug has a synergistic, additive, or antagonistic effect. Research should be conducted to validate any claims regarding drug interactions to ensure that the results are accurate and reliable. These assays may provide functional evidence of the effects of the treatments on stem cell properties.