EIF5A2 promotes proliferation and invasion of intrahepatic cholangiocarcinoma cells - 20/08/22
Highlights |
• | EIF5A2 is overexpressed in intrahepatic cholangiocarcinoma. |
• | High level of EIF5A2 promotes the progression of intrahepatic cholangiocarcinoma. |
• | Targeting EIF5A2 can inhibit ICC cells proliferation and invasion in vitro. |
• | EIF5A2 activates the PI3K/AKT/mTOR signaling pathway to promote tumor cell invasion. |
Abstract |
Purpose |
Intrahepatic cholangiocarcinoma (ICC) can invade and metastasize. EIF5A2 is involved in the invasive metastatic process of several digestive malignancies. However, its role in ICC is yet to be elucidated.
Methods |
Immunohistochemistry (IHC) and Western blot (WB) were used to detect the level of EIF5A2 in the tumor specimens of ICC patients and evaluate the correlation between its expression and clinicopathological characteristics. The significance of EIF5A2 in the prognosis of ICC patients was further evaluated by Kaplan–Meier and Cox regression analysis. In addition, CCK-8, EdU, Transwell invasion, and scratch assays were utilized to detect tumor cell proliferation, invasion, and metastasis. Furthermore, the role of EIF5A2 in ICC cells was evaluated after modification of EIF5A2 expression.
Results |
The level of EIF5A2 protein was significantly higher in ICC than in adjacent tissues. This high expression in the tumor samples was significantly associated with malignant phenotypes, such as lymph node metastasis (LNM), microvascular or bile duct invasion, and poor differentiation. ICC patients with high expression of EIF5A2 had short overall survival and a high cumulative recurrence rate. The multifactorial analysis showed that EIF5A2 is an independent prognostic marker. Furthermore, high levels of EIF5A2 may activate the PI3K/AKT/mTOR signaling pathway and upregulate Cyclin D1, Cyclin D3, MMP2, and MMP9 to promote ICC cell proliferation, migration, and invasion.
Conclusion |
The current study found that EIF5A2 promotes ICC progression and is a prognostic biomarker and candidate therapeutic target for ICC patients.
Le texte complet de cet article est disponible en PDF.Keywords : Intrahepatic cholangiocarcinoma, EIF5A2, Migration, Invasion, Prognosis
Abbreviations : EIF5A2, GAPDH, ICC, IF, IHC, OS
Plan
Vol 46 - N° 7
Article 101991- août 2022 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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