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Eukaryotic initiation factor 5A2 and human digestive system neoplasms
Qing-Bin Meng1, Jing-Jing Peng2, Zi-Wei Qu1
1Department of Gastrointestinal Surgery, the First Hospital of Wuhan City, Wuhan 430022, Hubei Province, China.
Abstract:
Eukaryotic initiation factor 5A2 (eIF5A2), as one of the two isoforms in the family, is reported to be a novel oncogenic protein that is involved in multiple aspects of many types of human cancer. Overexpression or gene amplification of EIF5A2 has been demonstrated in many cancers. Accumulated evidence shows that eIF5A2 initiates tumor formation, enhances cancer cell growth, increases cancer cell metastasis, and promotes treatment resistance through multiple means, including inducing epithelial-mesenchymal transition, cytoskeletal rearrangement, angiogenesis, and metabolic reprogramming. Expression of eIF5A2 in cancer correlates with poor survival, advanced disease stage, as well as metastasis, suggesting that eIF5A2 function is crucial for tumor development and maintenance but not for normal tissue homeostasis. All these studies suggest that eIF5A2 is a useful biomarker in the prediction of cancer prognosis and serves as an anticancer molecular target. This review focuses on the expression, subcellular localization, post-translational modifications, and regulatory networks of eIF5A2, as well as its biochemical functions and evolving clinical applications in cancer, especially in human digestive system neoplasms.
Insights
Eukaryotic initiation factor 5A2 (eIF5A2) is an oncogenic protein driving cancer progression, metastasis, and treatment resistance. Targeting eIF5A2 offers a promising strategy for cancer therapy and prognosis.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Eukaryotic initiation factor 5A2 (eIF5A2) is a key oncogenic protein implicated in various human cancers.
- Overexpression and gene amplification of EIF5A2 are frequently observed in malignant tumors.
- eIF5A2 plays a critical role in tumor initiation, growth, metastasis, and therapeutic resistance.
Purpose of the Study:
- To review the expression, localization, modifications, and functions of eIF5A2 in cancer.
- To explore the clinical applications of eIF5A2 as a biomarker and therapeutic target.
- To highlight eIF5A2's role in digestive system neoplasms.
Main Methods:
- Literature review of studies on eIF5A2 in human cancers.
- Analysis of eIF5A2 expression, localization, and post-translational modifications.
- Examination of eIF5A2's biochemical functions and regulatory networks.
Main Results:
- eIF5A2 promotes tumor formation, cell growth, metastasis, and treatment resistance.
- Mechanisms include inducing epithelial-mesenchymal transition, cytoskeletal rearrangement, angiogenesis, and metabolic reprogramming.
- eIF5A2 expression correlates with poor prognosis, advanced stage, and metastasis.
Conclusions:
- eIF5A2 is crucial for tumor development and maintenance, but not normal tissue homeostasis.
- eIF5A2 serves as a valuable prognostic biomarker and a potential molecular target for anticancer therapies.
- Further research into eIF5A2's role, particularly in digestive cancers, is warranted for clinical applications.
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