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Guo K, Zhou J. Insights into eukaryotic translation initiation factor 5A: Its role and mechanisms in protein synthesis. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024:119849. [PMID: 39303786 DOI: 10.1016/j.bbamcr.2024.119849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 08/29/2024] [Accepted: 09/12/2024] [Indexed: 09/22/2024]
Abstract
The protein synthesis within eukaryotic cells is a complex process involving various translation factors. Among these factors, eukaryotic translation initiation factor 5A (eIF5A) emerges as a crucial translation factor with high evolutionary conservation. eIF5A is unique as it is the only protein in eukaryotic cells containing the hypusine modification. Initially presumed to be a translation initiation factor, eIF5A was subsequently discovered to act mainly during the translation elongation phase. Notably, eIF5A facilitates the translation of peptide sequences containing polyproline stretches and exerts a universal regulatory effect on the elongation and termination phases of protein synthesis. Additionally, eIF5A indirectly affects various physiological processes within the cell by modulating the translation of specific proteins. This review provides a comprehensive overview of the structure, physiological functions, various post-translational modifications of eIF5A, and its association with various human diseases. The comparison between eIF5A and its bacterial homolog, EF-P, extends the discussion to the evolutionary conservation of eIF5A. This highlights its significance across different domains of life.
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Affiliation(s)
- Keying Guo
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Jie Zhou
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, China.
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Fang J, Yu T, Jiang X, Lu Y, Shang X, Shen H, Lu Y, Zheng J, Fu P. Prognostic value of EIF5A2 in solid tumors: A meta-analysis and bioinformatics analysis. Open Med (Wars) 2024; 19:20240962. [PMID: 38770178 PMCID: PMC11103163 DOI: 10.1515/med-2024-0962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/16/2024] [Accepted: 04/05/2024] [Indexed: 05/22/2024] Open
Abstract
Aims In cancer biology, the aberrant overexpression of eukaryotic translation initiation factor 5A2 (EIF5A2) has been correlative with an ominous prognosis, thereby underscoring its pivotal role in fostering metastatic progression. Consequently, EIF5A2 has garnered significant attention as a compelling prognostic biomarker for various malignancies. Our research endeavors were thus aimed at elucidating the utility and significance of EIF5A2 as a robust indicator of cancer outcome prediction. Method An exhaustive search of the PubMed, EMBASE, and Web of Science databases found relevant studies. The link between EIF5A2 and survival prognosis was examined using hazard ratios and 95% confidence intervals. Subsequently, The Cancer Genome Atlas (TCGA) and the Gene Expression Profiling Interactive Analysis (GEPIA) databases were employed to validate EIF5A2 expression across various cancer types. Results Through pooled analysis, we found that increased EIF5A2 expression was significantly associated with decreased overall survival (OS) and disease-free survival/progression-free survival/relapse-free survival (DFS/PFS/RFS). Moreover, TCGA analysis revealed that EIF5A2 was significantly upregulated in 27 types of cancer, with overexpression being linked to shorter OS in three, worse DFS in two, and worse PFS in six types of cancer. GEPIA showed that patients with EIF5A2 overexpression had reduced OS and DFS. Conclusions In solid tumors, EIF5A2 emerges as a reliable prognostic marker. Our meta-analysis comprehensively analyzed the prognostic value of EIF5A2 in solid tumors and assessed its efficacy as a predictive marker.
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Affiliation(s)
- Jianwen Fang
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Tianze Yu
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Xiaocong Jiang
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yuexin Lu
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Xi Shang
- Department of Breast and Thyroid Surgery, Taizhou Hospital, Zhejiang University, Taizhou, Zhejiang, 318000, China
| | - Haixing Shen
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
- Department of Breast and Thyroid Surgery, Cixi People’s Hospital, Cixi, Zhejiang, 315300, China
| | - Yue Lu
- Department of Breast and Thyroid Surgery, First Affiliated Hospital of Huzhou University, Huzhou, 313000, Zhejiang, China
| | - Jingyan Zheng
- Department of Breast and Thyroid Surgery, Lishui People’s Hospital, The Six Affiliated Hospital of Wenzhou Medical University, Lishui, Zhejiang, 323000, China
| | - Peifen Fu
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
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Zhuang S, Xie J, Zhen J, Guo L, Hong Z, Li F, Xu D. The deubiquitinating enzyme ATXN3 promotes the progression of anaplastic thyroid carcinoma by stabilizing EIF5A2. Mol Cell Endocrinol 2021; 537:111440. [PMID: 34428509 DOI: 10.1016/j.mce.2021.111440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/28/2021] [Accepted: 08/17/2021] [Indexed: 12/28/2022]
Abstract
Ataxin-3 (ATXN3) is a ubiquitous deubiquitinating enzyme that plays an essential role in the carcinogenesis of numerous tumors and stabilizes the expression of substrates by deubiquitination. However, the functional role of ATXN3 in anaplastic thyroid carcinoma (ATC) remains unknown. In this research, we report that ATXN3 was overexpressed in ATC compared to that in paracancerous samples. Moreover, various gain/loss functional assays were performed to indicate that ATXN3 overexpression enhanced ATC cell proliferation and metastasis. We also found that ATXN3 and eukaryotic translation initiation factor 5A2 (EIF5A2) protein levels in ATC tissues are positively correlated, and ATXN3 promotes the proliferation and metastasis of ATC cells through EIF5A2. Mechanistically, ATXN3 promotes EIF5A2 expression by directly binding to EIF5A2 to reduce its ubiquitination and degradation. Therefore, for the first time, we clarified the role of ATXN3 in the carcinogenesis of ATC cells, which provides novel insights into potential therapeutic targets for ATC progression.
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Affiliation(s)
- Shimin Zhuang
- Department of Otolaryngology-Head & Neck Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jing Xie
- Second College of Clinical Medicine, Nanchang University, China
| | - Jing Zhen
- Second College of Clinical Medicine, Nanchang University, China
| | - Liangyun Guo
- Department of Ultrasonography, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhengdong Hong
- Department of Urology Surgery; Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Feihong Li
- Department of Anesthesiology, Nanchang Normal University, Nanchang, China
| | - Debin Xu
- Department of Thyroid Surgery; Second Affiliated Hospital of Nanchang University, Nanchang, China.
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Liu X, Li C, Li X, Ehsan M, Lu M, Li K, Xu L, Yan R, Song X, Li X. Proteomics analysis reveals that the proto-oncogene eIF-5A indirectly influences the growth, invasion and replication of Toxoplasma gondii tachyzoite. Parasit Vectors 2021; 14:283. [PMID: 34039408 PMCID: PMC8157420 DOI: 10.1186/s13071-021-04791-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/11/2021] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND The proliferative stage (tachyzoite) of Toxoplasma gondii (T. gondii) is critical for its transmission and pathogenesis, and a proto-oncogene eukaryotic translation initiation factor (eIF-5A) plays an important role in various cellular processes such as cell multiplication. METHODS We performed a proteomic study to evaluate the specific roles of eIF-5A involved in invasion and replication of T. gondii, and both in vivo and in vitro trials using eIF-5A-interfered and wild tachyzoites were performed to verify the proteomic results. RESULTS The results of our study showed that T. gondii eIF-5A affected tachyzoite growth and also participated in the synthesis of proteins through regulation of both ribosomal and splicing pathways. Inhibition of eIF-5A in T. gondii resulted in the downregulated expression of soluble adhesions, such as microneme protein 1 (MIC1) and MIC4, which in turn decreased the parasite population that adhered to the surface of host cells. The reduced attachment, combined with lower expression of some rhoptry proteins (ROPs) and dense granule antigens (GRAs) involved in different stages of T. gondii invasion such as ROP4 and GRA3, ultimately reduce the invasion efficiency. These processes regulated by eIF-5A eventually affect the replication of tachyzoites. CONCLUSIONS Our findings showed that eIF-5A influenced tachyzoite survival and was also involved in the process of parasite invasion and replication. These results will provide new clues for further development of targeted drugs to control T. gondii infection.
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Affiliation(s)
- Xinchao Liu
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, College of Animal Science, Anhui Science and Technology University, Fengyang, 233100 People’s Republic of China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Chunjing Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Xiaoyu Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Muhammad Ehsan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 Gansu People’s Republic of China
| | - Mingmin Lu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Ke Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
- Poultry and Poultry Diseases Institute, Yunnan Animal Science and Veterinary Institute, Kunming, 650224 People’s Republic of China
| | - Lixin Xu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Ruofeng Yan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Xiaokai Song
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - XiangRui Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
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Zhao G, Zhang W, Dong P, Watari H, Guo Y, Pfeffer LM, Tigyi G, Yue J. EIF5A2 controls ovarian tumor growth and metastasis by promoting epithelial to mesenchymal transition via the TGFβ pathway. Cell Biosci 2021; 11:70. [PMID: 33827661 PMCID: PMC8025533 DOI: 10.1186/s13578-021-00578-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 03/23/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Epithelial to mesenchymal transition (EMT) contributes to tumor metastasis and chemoresistance. Eukaryotic initiation factor 5A2 (EIF5A2) is highly expressed in a variety of human cancers but rarely expressed in normal tissues. While EIF5A2 has oncogenic activity in several cancers and contributes to tumor metastasis, its role in ovarian cancer is unknown. In this study, we investigate whether EIF5A2 contributes to ovarian tumor metastasis by promoting EMT. METHODS To investigate the role of EIF5A2, we knocked out (KO) EIF5A2 using lentiviral CRISPR/Cas9 nickase in high invasive SKOV3 and OVCAR8 cells and overexpressed EIF5A2 in low invasive OVCAR3 cells using lentiviral vector. Cell proliferation, migration and invasion was examined in vitro ovarian cancer cells and tumor metastasis was evaluated in vivo using orthotopic ovarian cancer mouse models. RESULTS Here we report that EIF5A2 is highly expressed in ovarian cancers and associated with patient poor survival. Lentiviral CRISPR/Cas9 nickase vector mediated knockout (KO) of EIF5A2 inhibits epithelial to mesenchymal transition (EMT) in SKOV3 and OVCAR8 ovarian cancer cells that express high levels of EIF5A2. In contrast, overexpression of EIF5A2 promotes EMT in OVCAR3 epithelial adenocarcinoma cells that express relatively low EIF5A2 levels. KO of EIF5A2 in SKOV3 and OVCAR8 cells inhibits ovarian cancer cell migration and invasion, while its overexpression promotes cell migration and invasion in OVCAR3 adenocarcinoma cells. We further demonstrate that EIF5A2 promotes EMT by activating the TGFβ pathway and KO of EIF5A2 inhibits ovarian tumor growth and metastasis in orthotopic ovarian cancer mouse models. CONCLUSION Our results indicate that EIF5A2 is an important controller of ovarian tumor growth and metastasis by promoting EMT and activating the TGFβ pathway.
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Affiliation(s)
- Guannan Zhao
- Department of Pathology and Laboratory Medicine, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163 USA
- Center for Cancer Research, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163 USA
| | - Wenjing Zhang
- Department of Genetics, Genomics & Informatics, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163 USA
| | - Peixin Dong
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Sapporo, 060-8638 Japan
| | - Hidemichi Watari
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Sapporo, 060-8638 Japan
| | - Yuqi Guo
- People′s Hospital of Zhengzhou University, Zhengzhou, Henan China
| | - Lawrence M. Pfeffer
- Department of Pathology and Laboratory Medicine, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163 USA
- Center for Cancer Research, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163 USA
| | - Gabor Tigyi
- Department of Physiology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163 USA
| | - Junming Yue
- Department of Pathology and Laboratory Medicine, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163 USA
- Center for Cancer Research, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163 USA
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Wang X, Xu D, Pei X, Zhang Y, Zhang Y, Gu Y, Li Y. CircSKA3 Modulates FOXM1 to Facilitate Cell Proliferation, Migration, and Invasion While Confine Apoptosis in Medulloblastoma via miR-383-5p. Cancer Manag Res 2021; 12:13415-13426. [PMID: 33408514 PMCID: PMC7779290 DOI: 10.2147/cmar.s272753] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/02/2020] [Indexed: 12/11/2022] Open
Abstract
Background Medulloblastoma (MB) is the most common malignant brain tumor during childhood. Circular RNA (circSKA3) was identified to function as an oncogene in MB. However, the mechanism of circSKA3 in MB remains unclear. Methods The levels of circSKA3, microRNA-383-5p (miR-383-5p), and forkhead box M1 (FOXM1) in MB tissues were measured by quantitative real-time polymerase chain reaction (qRT-PCR). The cell viability and apoptotic rate were assessed via 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) assay and flow cytometry, respectively. The protein levels of B-cell lymphoma 2 (Bcl-2), C-Caspase3, and FOXM1 were detected via Western blot assay. Cell cycle was detected by flow cytometry. The migration and invasion abilities were monitored by Transwell assay. The dual-luciferase reporter assay was constructed to verify the interactions between miR-383-5p and circSKA3 or FOXM1. The mice model experiment was carried out to validate the effects of circSKA3 in vivo. Results The levels of circSKA3 and FOXM1 were significantly elevated, while the level of miR-383-5p was notably declined in MB tissues. CircSKA3 was validated to sponge miR-383-5p, and FOXM1 was a candidate target of miR-383-5p. CircSKA3 silencing impeded cell proliferation, migration, and invasion while promoted apoptosis by targeting miR-383-5p in vitro and retarded xenograft tumor growth in vivo. miR-383-5p suppressed cell proliferation, migration, and invasion but promoted apoptosis in MB cells by regulating FOXM1. CircSKA3 depletion decreased FOXM1 expression via miR-383-5p in MB cells. Conclusion CircSKA3 augmented MB progression partly through miR-383-5p/FOXM1 axis.
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Affiliation(s)
- Xinfang Wang
- Department of Pediatrics, Shandong Provincial Western Hospital, Jinan 250022, Shandong, People's Republic of China
| | - Dong Xu
- Department of Pediatrics, Shandong Provincial Western Hospital, Jinan 250022, Shandong, People's Republic of China
| | - Xin Pei
- Department of Pediatrics, Shandong Provincial Western Hospital, Jinan 250022, Shandong, People's Republic of China
| | - Yingying Zhang
- Department of Pediatrics, Shandong Provincial Western Hospital, Jinan 250022, Shandong, People's Republic of China
| | - Yuling Zhang
- Department of Pediatrics, Shandong Provincial Western Hospital, Jinan 250022, Shandong, People's Republic of China
| | - Yaxing Gu
- Department of Pediatrics, Shandong Provincial Western Hospital, Jinan 250022, Shandong, People's Republic of China
| | - Ying Li
- Department of Pediatrics, Shandong Provincial Western Hospital, Jinan 250022, Shandong, People's Republic of China
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Hao F, Zhu Q, Lu L, Sun S, Huang Y, Zhang J, Liu Z, Miao Y, Jiao X, Chen D. EIF5A2 Is Highly Expressed in Anaplastic Thyroid Carcinoma and Is Associated With Tumor Growth by Modulating TGF- Signals. Oncol Res 2020; 28:345-355. [PMID: 32138807 PMCID: PMC7851513 DOI: 10.3727/096504020x15834065061807] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Anaplastic thyroid carcinoma (ATC) is resistant to standard therapies and has no effective treatment. Eukaryotic translation initiation factor 5A2 (EIF5A2) has shown to be upregulated in many malignant tumors and proposed to be a critical gene involved in tumor metastasis. In this study, we aimed to investigate the expression status of EIF5A2 in human ATC tissues and to study the role and mechanisms of EIF5A2 in ATC tumorigenesis in vitro and in vivo. Expression of EIF5A2 protein was analyzed in paraffin-embedded human ATC tissues and adjacent nontumorous tissues (ANCT) (n=24) by immunochemistry. Expressions of EIF5A2 mRNA and protein were analyzed in fresh-matched ATC and ANCT (n=23) and ATC cell lines by real-time polymerase chain reaction (PCR) and Western blotting. The effect of targeting EIF5A2 with short hairpin RNA (shRNA) or EIF5A2 overexpression on the ATC tumorigenesis and TGF-/Smad2/3 signals in vitro and in vivo was investigated. Expression of EIF5A2 was significantly upregulated in ATC tissues and cell lines compared with ANCT and normal follicular epithelial cell line. Functional studies found that targeting EIF5A2 induced SW1736 cell death in vitro and in vivo, followed by significantly downregulated phosphorylation of Smad2/3 (p-Smad2/3) in SW1736 cells at the protein level. Ectopic expression of EIF5A2 could promote 8505C cell growth in vitro and in vivo, followed by significantly upregulated p-Smad3 at the protein level. Recombinant human TGF-1 (hTGF-1) treatment decreased the antiproliferative activity of the EIF5A2 downexpressing 8505C cells through reversing pSmad2/3. Using the specific inhibitor SB431542 to block TGF- pathway or Smad3 siRNA to knock down Smad3 increased the antiproliferative activity of the EIF5A2-overexpressing 8505C cells through inhibiting pSmad2/3. Our findings indicated that EIF5A2 controled cell growth in ATC cells, and EIF5A/TGF-/Smad2/3 signal may be a potential therapeutic target for ATC treatment.
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Affiliation(s)
- Fengyun Hao
- *Department of Pathology, the Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Qingli Zhu
- †Department of Thyroid Surgery, the Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Lingwei Lu
- †Department of Thyroid Surgery, the Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Shukai Sun
- ‡Department of Clinical Lab, the Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Yichuan Huang
- §Department of Otolaryngology, the Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Jinna Zhang
- ¶Department of Medical Experiment Center, the Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Zhaohui Liu
- †Department of Thyroid Surgery, the Affiliated Hospital of Qingdao University, Qingdao, P.R. China
- #Department of Molecular Biochemistry and Genetic Engineering, Shenzhen University, Shenzhen, P.R. China
| | - Yuanqing Miao
- **Department of Medical Network Information Center, the Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Xuelong Jiao
- ††Department of General Surgery, the Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Dong Chen
- ††Department of General Surgery, the Affiliated Hospital of Qingdao University, Qingdao, P.R. China
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Ning L, Wang L, Zhang H, Jiao X, Chen D. Eukaryotic translation initiation factor 5A in the pathogenesis of cancers. Oncol Lett 2020; 20:81. [PMID: 32863914 PMCID: PMC7436936 DOI: 10.3892/ol.2020.11942] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 06/10/2020] [Indexed: 12/11/2022] Open
Abstract
Cancer is the leading cause of death worldwide. The absence of obvious symptoms and insufficiently sensitive biomarkers in early stages of carcinoma limits early diagnosis. Cancer therapy agents and targeted therapy have been used extensively against tissues or organs of specific cancers. However, the intrinsic and/or acquired resistance to the agents or targeted drugs as well as the serious toxic side effects of the drugs would limit their use. Therefore, identifying biomarkers involved in tumorigenesis and progression represents a challenge for cancer diagnosis and therapeutic strategy development. The eukaryotic translation factor 5A (eIF5A), originally identified as an initiation factor, was later shown to promote translation elongation of iterated proline sequences. There are two eIF5A isoforms (eIF5A1 and eIF5A2). eIF5A2 protein consists of 153 residues, and shares 84% amino acid identity with eIF5A1. However, the biological functions of these two isoforms may be significantly different. Recently, it was demonstrated that eIF5Ais widely involved in the pathogenesis of a number of diseases, including cancers. In particular, eIF5A plays an important role in regulating tumor growth, invasion, metastasis and tumor microenvironment. It was also shown to serve as a potential biomarker and target for the diagnosis and treatment of cancers. The present review briefly discusses the latest findings of eIF5A in the pathogenesis of certain malignant cancers and evolving clinical applications.
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Affiliation(s)
- Liang Ning
- Department of General Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Lei Wang
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Honglai Zhang
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Xuelong Jiao
- Department of General Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Dong Chen
- Department of General Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
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Ai J, Sun J, Zhou G, Zhu T, Jing L. Long non-coding RNA GAS6-AS1 acts as a ceRNA for microRNA-585, thereby increasing EIF5A2 expression and facilitating hepatocellular carcinoma oncogenicity. Cell Cycle 2020; 19:742-757. [PMID: 32089066 PMCID: PMC7145326 DOI: 10.1080/15384101.2020.1729323] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 12/22/2019] [Accepted: 12/29/2019] [Indexed: 12/23/2022] Open
Abstract
Long non-coding RNA termed GAS6 antisense RNA 1 (GAS6-AS1) plays an essential role in gastric and non-small cell lung cancers. Nonetheless, the function of GAS6-AS1 in hepatocellular carcinoma (HCC) has not been so far studied in detail. In this study, reverse-transcription quantitative PCR was performed to measure GAS6-AS1 expression in HCC samples. A series of functional experiments, including MTT assay, colony formation assay, flow-cytometric analysis, and transwell migration and invasion assays, was performed to determine the influence of GAS6-AS1 knockdown on the malignant phenotype of HCC. The results showed that GAS6-AS1 was significantly upregulated in HCC tissue samples and cell lines. Increased GAS6-AS1 expression was associated with tumor size, Edmondson grade, and Tumor-Node-Metastasis (TNM) stage among patients with HCC. The overall survival of patients with HCC characterized with high expression of GAS6-AS1 was significantly shorter in comparison to that of patients with low level of GAS6-AS1. Functional experiments indicated that knockdown of GAS6-AS1 suppressed HCC cell proliferation, colony formation, migration, and invasion in vitro; promoted apoptosis in vitro; and decreased tumor growth in vivo. Of note, GAS6-AS1 was validated as a competing endogenous RNA (ceRNA) for microRNA-585 (miR-585) and consequently increased the expression of eukaryotic translation initiation factor 5A2 (EIF5A2). Finally, rescue experiments confirmed the association among GAS6-AS1, miR-585, and EIF5A2 in HCC cells. Our study provides substantial evidence that the GAS6-AS1/miR-585/EIF5A2 pathway plays an important role in HCC progression and that might be considered as a potential target for therapeutic approaches in HCC.
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Affiliation(s)
- Jing Ai
- Department of Ophthalmology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, P.R. China
| | - Junhui Sun
- Hepatobiliary and Pancreatic Interventional Treatment Center, Division of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, P.R. China
| | - Guanhui Zhou
- Hepatobiliary and Pancreatic Interventional Treatment Center, Division of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, P.R. China
| | - Tongyin Zhu
- Hepatobiliary and Pancreatic Interventional Treatment Center, Division of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, P.R. China
| | - Li Jing
- Hepatobiliary and Pancreatic Interventional Treatment Center, Division of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, P.R. China
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10
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Bao Y, Zhang Y, Lu Y, Guo H, Dong Z, Chen Q, Zhang X, Shen W, Chen W, Wang X. Overexpression of microRNA-9 enhances cisplatin sensitivity in hepatocellular carcinoma by regulating EIF5A2-mediated epithelial-mesenchymal transition. Int J Biol Sci 2020; 16:827-837. [PMID: 32071552 PMCID: PMC7019138 DOI: 10.7150/ijbs.32460] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 11/17/2019] [Indexed: 12/14/2022] Open
Abstract
We investigated the role of microRNA (miR)-9 in modulating chemoresistance in hepatocellular carcinoma (HCC) cells. MiR-9 was overexpressed or knocked down in HCC cell lines. Cell viability, cell proliferation, the expression of EIF5A2 and the epithelial-mesenchymal transition (EMT)-related proteins were examined. HCC cells overexpressing miR-9 were more sensitive to cisplatin; miR-9 knockdown yielded the opposite result. The in vivo nude mouse HCC xenograft tumors yielded the same results. EIF5A2 was identified as a potential target of miR-9, where miR-9 regulated EIF5A2 expression at mRNA and protein level. EIF5A2 knockdown reversed miR-9 inhibition-mediated cisplatin resistance. Altering miR-9 and EIF5A2 expression changed E-cadherin and vimentin expression. Furthermore, EIF5A2 mediated miR-9 EMT pathway regulation, indicating that miR-9 can enhance cisplatin sensitivity by targeting EIF5A2 and inhibiting the EMT pathway. Targeting miR-9 may be useful for overcoming drug resistance in HCC.
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Affiliation(s)
- Ying Bao
- Key Laboratory for Translational Medicine, First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, huzhou 313000,China
| | - Yibo Zhang
- Department of Hepatobiliary and Pancreatic Surgery, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Yongliang Lu
- Department of medicine,Huzhou University, huzhou 313000,China
| | - Huihui Guo
- Key Laboratory for Translational Medicine, First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, huzhou 313000,China
| | - Zhaohuo Dong
- Key Laboratory for Translational Medicine, First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, huzhou 313000,China
| | - Qiuqiang Chen
- Key Laboratory for Translational Medicine, First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, huzhou 313000,China
| | - Xilin Zhang
- Key Laboratory for Translational Medicine, First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, huzhou 313000,China
| | - Weiyun Shen
- Key Laboratory for Translational Medicine, First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, huzhou 313000,China
| | - Wei Chen
- Cancer Institute of Integrated traditional Chinese and Western Medicine, Key laboratory of cancer prevention and therapy combining traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, Zhejiang, 310012, China
- Department of Medical Oncology, Tongde hospital of Zhejiang Province, Hangzhou, Zhejiang, 310012, China
| | - Xiang Wang
- Key Laboratory for Translational Medicine, First Affiliated Hospital, Huzhou University, the First People's Hospital of Huzhou, huzhou 313000,China
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11
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Wu GQ, Xu YM, Lau ATY. Recent insights into eukaryotic translation initiation factors 5A1 and 5A2 and their roles in human health and disease. Cancer Cell Int 2020; 20:142. [PMID: 32368188 PMCID: PMC7191727 DOI: 10.1186/s12935-020-01226-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 04/20/2020] [Indexed: 02/05/2023] Open
Abstract
The eukaryotic translation initiation factor 5A1 (eIF5A1) and its homolog eIF5A2 are the only two human proteins containing the unique post-translational modification-hypusination, which is essential for the function of these two proteins. eIF5A1 was initially identified as a translation initiation factor by promoting the first peptide bond formation of protein during translation; however, recent results suggest that eIF5A1 also functions as a translation elongation factor. It has been shown that eIF5A1 is implicated in certain human diseases, including diabetes, several human cancer types, viral infections and diseases of neural system. Meanwhile, eIF5A2 is overexpressed in many cancers, and plays an important role in the development and progression of cancers. As multiple roles of these two factors were observed among these studies, therefore, it remains unclear whether they act as oncogene or tumor suppressor. In this review, the recent literature of eIF5As and their roles in human diseases, especially in human cancers, will be discussed.
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Affiliation(s)
- Gao-Qi Wu
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong 515041 People’s Republic of China
| | - Yan-Ming Xu
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong 515041 People’s Republic of China
| | - Andy T. Y. Lau
- Laboratory of Cancer Biology and Epigenetics, Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong 515041 People’s Republic of China
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12
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Zhong X, Xiu H, Bi Y, Zhang H, Chang L, Diao H. Targeting eIF5A2 inhibits prostate carcinogenesis, migration, invasion and metastasis in vitro and in vivo. Bioengineered 2020; 11:619-627. [PMID: 32522053 PMCID: PMC8291822 DOI: 10.1080/21655979.2020.1774993] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/24/2020] [Accepted: 05/25/2020] [Indexed: 02/07/2023] Open
Abstract
Overexpression of eukaryotic initiation factor- 5A2 (eIF5A2) has been implicated in promoting tumor cell migration and invasion in many cancers. However, whether eIF5A2 could be as the target for prostate cancer (PCa) treatment is still unknown. In this study, small interfering RNA specific for eIF5A2 (eIF5A2 siRNA) and lentivector for eIF5A2 shRNA (Lv-eIF5A2 shRNA) was performed to down-regulate eIF5A2 expression in PCa PC-3 M IE8 cells and in animal tumor model, respectively. The biological function of eIF5A2 siRNA or Lv-eIF5A2 shRNA on PC-3 M IE8 cell growth, apoptosis, migration, invasion and lung metastasis were explored. The results showed that targeting eIF5A2 inhibited PC-3 M IE8 cell invasion, migration, proliferation and increased cell apoptosis in vitro, and inhibited tumor growth and lung metastasis in vivo. Analysis of eIF5A2 signaling pathways in the clonal derivatives showed a decrease in MMP-2 and MMP-9 activation and increase in bcl-2 expression. We therefore concluded that therapies targeting the eIF5A2 signaling pathway may be more effective to prevent organ metastasis and primary tumor formation.
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Affiliation(s)
- Xiulong Zhong
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Hong Xiu
- Department of Nursing, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yanan Bi
- Department of Nursing, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Hongmei Zhang
- Department of Nursing, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Laizhen Chang
- Department of Medicine, Huaou Group Hospital, Qingdao, Shandong, China
| | - Huifeng Diao
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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13
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Smolle MA, Czapiewski P, Lapińska-Szumczyk S, Majewska H, Supernat A, Zaczek A, Biernat W, Golob-Schwarzl N, Haybaeck J. The Prognostic Significance of Eukaryotic Translation Initiation Factors (eIFs) in Endometrial Cancer. Int J Mol Sci 2019; 20:E6169. [PMID: 31817792 PMCID: PMC6941158 DOI: 10.3390/ijms20246169] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 12/01/2019] [Accepted: 12/05/2019] [Indexed: 02/07/2023] Open
Abstract
Whilst the role of eukaryotic translation initiation factors (eIFs) has already been investigated in several human cancers, their role in endometrial cancer (EC) is relatively unknown. In the present retrospective study, 279 patients with EC (1180 samples) were included (mean age: 63.0 years, mean follow-up: 6.1 years). Samples were analysed for expression of 7 eIFs subunits (eIF2α, eIF3c, eIF3h, eIF4e, eIF4g, eIF5, eIF6) through immunohistochemistry and western blotting. Fifteen samples of healthy endometrium served as controls. Density and intensity were assessed and mean combined scores (CS) calculated for each patient. Upon immunohistochemistry, median eIF5 CS were significantly higher in EC as compared with non-neoplastic tissue (NNT, p < 0.001), whilst median eIF6 CS were significantly lower in EC (p < 0.001). Moreover, eIF5 (p = 0.002), eIF6 (p = 0.032) and eIF4g CS (p = 0.014) were significantly different when comparing NNT with EC grading types. Median eIF4g CS was higher in type II EC (p = 0.034). Upon western blot analysis, eIF4g (p < 0.001), peIF2α (p < 0.001) and eIF3h (p < 0.05) were significantly overexpressed in EC, while expression of eIF3c was significantly reduced in EC as compared with NNT (p < 0.001). The remaining eIFs were non-significant. Besides tumour stage (p < 0.001) and patient's age (p < 0.001), high eIF4g CS-levels were independently associated with poor prognosis (HR: 1.604, 95%CI: 1.037-2.483, p = 0.034). The other eIFs had no prognostic significance. Notably, the independent prognostic significance of eIF4g was lost when adding tumour type. Considering the difficulties in differentiating EC type I and II, eIF4g may serve as a novel prognostic marker indicating patient outcome.
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Affiliation(s)
- Maria Anna Smolle
- Department of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria;
- Area 2 Cancer, Center for Biomarker Research in Medicine, Stiftingtalstraße 5, 8010 Graz, Austria;
| | - Piotr Czapiewski
- Department of Pathomorphology, Medical University of Gdansk, Mariana Smoluchowskiego 17, 80-214 Gdańsk, Poland; (P.C.); (H.M.); (W.B.)
- Department of Pathology, Medical Faculty, Otto-von-Guericke University Magdeburg, Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Sylwia Lapińska-Szumczyk
- Department of Gynaecology, Gynaecological Oncology and Gynaecological Endocrinology, Medical University of Gdańsk, M. Skłodowskiej-Curie 3a Street, 80-210 Gdańsk, Poland;
| | - Hanna Majewska
- Department of Pathomorphology, Medical University of Gdansk, Mariana Smoluchowskiego 17, 80-214 Gdańsk, Poland; (P.C.); (H.M.); (W.B.)
| | - Anna Supernat
- Department of Medical Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdańnsk and Medical University of Gdańsk, Bażyńskiego 1a, 80-952 Gdańsk, Poland; (A.S.); (A.Z.)
| | - Anna Zaczek
- Department of Medical Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdańnsk and Medical University of Gdańsk, Bażyńskiego 1a, 80-952 Gdańsk, Poland; (A.S.); (A.Z.)
| | - Wojciech Biernat
- Department of Pathomorphology, Medical University of Gdansk, Mariana Smoluchowskiego 17, 80-214 Gdańsk, Poland; (P.C.); (H.M.); (W.B.)
| | - Nicole Golob-Schwarzl
- Area 2 Cancer, Center for Biomarker Research in Medicine, Stiftingtalstraße 5, 8010 Graz, Austria;
- Institute of Pathology, Medical University of Graz, Auenbruggerplatz 25, 8036 Graz, Austria
| | - Johannes Haybaeck
- Area 2 Cancer, Center for Biomarker Research in Medicine, Stiftingtalstraße 5, 8010 Graz, Austria;
- Department of Pathology, Medical Faculty, Otto-von-Guericke University Magdeburg, Leipziger Straße 44, 39120 Magdeburg, Germany
- Institute of Pathology, Medical University of Graz, Auenbruggerplatz 25, 8036 Graz, Austria
- Department of Pathology, Neuropathology and Molecular Pathology, Medical University of Innsbruck, Müllerstraße 44, 6020 Innsbruck, Austria
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14
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Meng QB, Peng JJ, Qu ZW, Zhu XM, Wen Z, Kang WM. Eukaryotic initiation factor 5A2 and human digestive system neoplasms. World J Gastrointest Oncol 2019; 11:449-458. [PMID: 31236196 PMCID: PMC6580320 DOI: 10.4251/wjgo.v11.i6.449] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 04/17/2019] [Accepted: 05/04/2019] [Indexed: 02/05/2023] Open
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.
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Affiliation(s)
- Qing-Bin Meng
- Department of Gastrointestinal Surgery, the First Hospital of Wuhan City, Wuhan 430022, Hubei Province, China
| | - Jing-Jing Peng
- Department of Gastroenterology, General Hospital of the Yangtze River Shipping, Wuhan 430015, Hubei Province, China
| | - Zi-Wei Qu
- Department of Gastrointestinal Surgery, the First Hospital of Wuhan City, Wuhan 430022, Hubei Province, China
| | | | - Zhang Wen
- Department of Hepato-Biliary-Pancreatic Surgery and Liver Transplantation, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Wei-Ming Kang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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15
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Lu J, Zhao HW, Chen Y, Wei JH, Chen ZH, Feng ZH, Huang Y, Chen W, Luo JH, Fang Y. Eukaryotic translation initiation factor 5A2 is highly expressed in prostate cancer and predicts poor prognosis. Exp Ther Med 2019; 17:3741-3747. [PMID: 30988760 DOI: 10.3892/etm.2019.7331] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 02/14/2019] [Indexed: 12/14/2022] Open
Abstract
Eukaryotic translation initiation factor (EIF) 5A2 exerts important functions that regulate the development and progression of cancers. The present study aimed to investigate the expression of EIF5A2 in prostate cancer (PCa) and its association with biological and prognostic significance. EIF5A2 mRNA and protein levels were analyzed in three paired samples of freshly resected PCa and adjacent non-tumor tissues. Immunohistochemical staining was used to detect the expression of EIF5A2 protein levels in 72 paraffin-embedded PCa tumor specimens. Subsequently, the association between EIF5A2 protein expression and clinicopathological parameters was assessed. Semi-quantitative reverse transcription-polymerase chain reaction and western blot analyses showed both EIF5A2 mRNA and protein levels were elevated in PCa compared with adjacent non-tumor tissues. Elevated EIF5A2 protein levels were observed in 73.6% (53/72) of the clinical PCa tissues using immunohistochemical staining. EIF5A2 expression was significantly associated with tumor stage (P=0.011) and biochemical recurrence status (P=0.032). Additionally, high levels of EIF5A2 predicted worse progression-free survival (P=0.007). Multivariate Cox regression analysis indicated that high expression of EIF5A2 was an independent prognostic factor for poor progression-free survival (hazard ratios, 0.366; 95% confidence interval, 0.349-0.460; P=0.021). The present study demonstrated that EIF5A2 is overexpressed in prostate cancer and may be a potential predictor and therapeutic target in PCa patients.
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Affiliation(s)
- Jian Lu
- Department of Urology, Jiangmen Hospital, Sun Yat-Sen University, Jiangmen, Guangdong 529030, P.R. China
| | - Hong-Wei Zhao
- Department of Urology, Affiliated Yantai Yuhuangding Hospital, Qingdao University Medical College, Jinan, Shandong 264000, P.R. China
| | - Yu Chen
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Jin-Huan Wei
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Zhen-Hua Chen
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Zi-Hao Feng
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Yong Huang
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Wei Chen
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Jun-Hang Luo
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Yong Fang
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
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16
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Zuo N, Hu H, Thapa N, Li Z, Jiang D, Meng X, Yang J, Chen X, Cai H. Vaginal cuff length during radical hysterectomy is a prognostic factor for stage IB-IIA cervical cancer: a retrospective study. Cancer Manag Res 2018; 10:5927-5935. [PMID: 30510460 PMCID: PMC6250116 DOI: 10.2147/cmar.s175726] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Purpose The aim of this study was to investigate the impact of vaginal cuff length (VCL) resected during radical hysterectomy (RH) on the long-term survival outcomes of patients with cervical cancer (International Federation of Gynecology and Obstetrics [FIGO] stage IB–IIA) and to explore whether VCL is a prognostic factor for cervical cancer. Methods A total of 435 eligible patients with stage IB and IIA cervical cancer who underwent RH in Zhongnan Hospital of Wuhan University (Wuhan, People’s Republic of China) from January 2007 to February 2017 were retrospectively analyzed. These patients were divided into two groups (VCL ≤2.0 cm and >2.0 cm) for further analysis according to the VCL during RH. The Kaplan–Meier method was adopted to calculate the survival rates. Univariate and multivariate Cox regression models were used to analyze independent prognosis factors for survival. Results Of the 435 identified patients, 196 had VCL ≤2.0 cm and 239 had VCL >2.0 cm after RH. The 5-year disease-free survival (DFS) for the group who had VCL ≤2.0 cm vs the group who had VCL >2.0 cm was 68.1% vs 87.5% (P<0.001). Correspondingly, the overall survival (OS) for the two groups was 71.4% vs 89.2% (P<0.001). More interestingly, the VCL was significantly associated with the 5-year local recurrence rate, but not associated with the distant metastasis rate. In addition to the VCL, FIGO stage and lymph node involvement were also identified as significant prognostic factors for cervical cancer. Conclusion Resection of VCL >2.0 cm in RH has a more favorable long-term outcome than VCL ≤2.0 cm among patients with cervical cancer (FIGO stage IB–IIA); shorter VCL resection was significantly associated with local recurrence, DFS, and OS; thus, it can be considered as a prognostic factor for cervical cancer.
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Affiliation(s)
- Na Zuo
- Department of Gynecological Oncology, Zhongnan Hospital of Wuhan University, Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, Hubei, People's Republic of China,
| | - Hongzhen Hu
- Department of Gynecological Oncology, Zhongnan Hospital of Wuhan University, Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, Hubei, People's Republic of China, .,Department of Obstetrics and Gynecology, Shenzhen Futian Maternity and Child Care Hospital, Shenzhen 518030, Guangdong, People's Republic of China
| | - Niresh Thapa
- Department of Gynecological Oncology, Zhongnan Hospital of Wuhan University, Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, Hubei, People's Republic of China, .,Karnali Academy of Health Sciences, Jumla, Nepal
| | - Zhen Li
- Department of Gynecological Oncology, Zhongnan Hospital of Wuhan University, Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, Hubei, People's Republic of China,
| | - Daqiong Jiang
- Department of Gynecological Oncology, Zhongnan Hospital of Wuhan University, Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, Hubei, People's Republic of China,
| | - Xiangyu Meng
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Department of Evidence-Based Medicine and Clinical Epidemiology, Second Clinical College of Wuhan University, Wuhan 430071, Hubei, People's Republic of China
| | - Jing Yang
- Department of Gynecological Oncology, Zhongnan Hospital of Wuhan University, Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, Hubei, People's Republic of China,
| | - Xiaoxing Chen
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Intestinal and Colorectal Diseases, Wuhan 430071, Hubei, People's Republic of China
| | - Hongbing Cai
- Department of Gynecological Oncology, Zhongnan Hospital of Wuhan University, Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, Hubei, People's Republic of China,
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17
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Zhou X, Xu M, Guo Y, Ye L, Long L, Wang H, Tan P, Xu M. MicroRNA-588 regulates invasion, migration and epithelial-mesenchymal transition via targeting EIF5A2 pathway in gastric cancer. Cancer Manag Res 2018; 10:5187-5197. [PMID: 30464616 PMCID: PMC6215924 DOI: 10.2147/cmar.s176954] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background miRNAs are potential regulators of genes in many cancers. Here, we confirmed that the expression of miR-588 decreased in gastric cancer (GC) tissues and cells. Materials and methods Sixty-seven GC tissues along with noncancerous tissues adjacent to them were included in the study. Quantitative real-time reverse transcription-PCR study was done to quantify the expression levels of mature miRNA. The expression of proteins was determined by Western blot and transwell chamber assay for invasion and migration studies. Immunohistochemical analysis and luciferase assay were done for evaluating the expression of epithelial–mesenchymal transition (EMT) markers and activity of EIF5A2, respectively. In vivo metastatic assay was done by injecting MGC-803 cells into nude mice. Results In the 5-year predicted survival study of GC patients included in the study, we found that miR-588 acted as a specific prognostic marker. Overexpression of miR-588 resulted in suppression of cell invasion, migration and progression of EMT, whereas suppression of miR-588 inverted the effects in both in vivo and in vitro experiments. miR-588 retained EIF5A2 by directly binding to the 3′-UTR. EIF5A2 was overexpressed in GC tissue samples, and the expression of miR-588 was inversely correlated to the levels of EIF5A2. The impact of miR-588 on invasion, migration and progression of EMT may be partially due to miR-588–mediated alterations of EiF5A2. Conclusion Overall, the findings of the study suggest that miR-588 acts as a tumor suppressor by regulating the invasion, migration and EMT via EIF5A2 pathway, hence presenting miR-588 as a prognostic marker as well as a therapeutic target for GC.
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Affiliation(s)
- Xiaorong Zhou
- Department of Gerontology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China,
| | - Manli Xu
- Department of Basic Medicine, Guizhou College of Health Professions, Tongren, Guizhou, 554300, China
| | - Yonghong Guo
- Department of Gerontology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China,
| | - Ling Ye
- Department of Gerontology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China,
| | - Limin Long
- Department of Gerontology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China,
| | - Haiqin Wang
- Department of Gerontology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China,
| | - Pan Tan
- Department of Gerontology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China,
| | - Meili Xu
- Department of Gerontology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China,
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18
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Sriram A, Bohlen J, Teleman AA. Translation acrobatics: how cancer cells exploit alternate modes of translational initiation. EMBO Rep 2018; 19:embr.201845947. [PMID: 30224410 DOI: 10.15252/embr.201845947] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 07/09/2018] [Accepted: 08/16/2018] [Indexed: 12/11/2022] Open
Abstract
Recent work has brought to light many different mechanisms of translation initiation that function in cells in parallel to canonical cap-dependent initiation. This has important implications for cancer. Canonical cap-dependent translation initiation is inhibited by many stresses such as hypoxia, nutrient limitation, proteotoxic stress, or genotoxic stress. Since cancer cells are often exposed to these stresses, they rely on alternate modes of translation initiation for protein synthesis and cell growth. Cancer mutations are now being identified in components of the translation machinery and in cis-regulatory elements of mRNAs, which both control translation of cancer-relevant genes. In this review, we provide an overview on the various modes of non-canonical translation initiation, such as leaky scanning, translation re-initiation, ribosome shunting, IRES-dependent translation, and m6A-dependent translation, and then discuss the influence of stress on these different modes of translation. Finally, we present examples of how these modes of translation are dysregulated in cancer cells, allowing them to grow, to proliferate, and to survive, thereby highlighting the importance of translational control in cancer.
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Affiliation(s)
- Ashwin Sriram
- German Cancer Research Center (DKFZ), Heidelberg, Germany.,Heidelberg University, Heidelberg, Germany
| | - Jonathan Bohlen
- German Cancer Research Center (DKFZ), Heidelberg, Germany.,Heidelberg University, Heidelberg, Germany
| | - Aurelio A Teleman
- German Cancer Research Center (DKFZ), Heidelberg, Germany .,Heidelberg University, Heidelberg, Germany
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Eo WK, Kwon BS, Kim KH, Kim HY, Kim HB, Koh SB, Chun S, Ji YI, Lee JY, Namkung J, Kwon S. Monocytosis as a prognostic factor for survival in stage IB and IIA cervical cancer. J Cancer 2018; 9:64-70. [PMID: 29290770 PMCID: PMC5743712 DOI: 10.7150/jca.22234] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 10/18/2017] [Indexed: 12/19/2022] Open
Abstract
Objective: To measure hematologic parameters derived from the white blood cell (WBC) count and differential count (DC) as prognostic factors for survival in patients with stage IB and IIA cervical cancer. Methods: We retrospectively examined demographic, clinicopathologic, and laboratory parameters in a cohort of 233 patients with International Federation of Gynecology and Obstetrics stage IB and IIA cervical cancer who underwent surgical resection. We further assessed the effects of the WBC count and DC-derived hematologic parameters on progression-free survival (PFS) and overall survival (OS) after controlling for other parameters. Results: Patients were followed up for a median of 46.6 months (range, 9-142 months). The Kaplan-Meier estimates of PFS and OS at 5 years were 88.5% and 92.3%, respectively. In a multivariate analysis, we identified the absolute monocyte count (AMC) (hazard ratio [HR], 11.78; P <0.001) and tumor size (HR, 5.41; P = 0.003) as the strongest prognostic factors affecting PFS. We also identified AMC (HR, 23.29; P <0.001), tumor size, (HR, 5.27; P = 0.033), and lymph node involvement (HR, 3.90; P = 0.027) as the strongest prognostic factors affecting OS. AMC remained prognostic with respect to PFS or OS in a Cox model that controlled for the neutrophil-lymphocyte ratio or lymphocyte-monocyte ratio, although neither ratio was a significant prognostic factor for survival. Conclusions: Monocytosis and an increased tumor size were found to be independent prognostic factors affecting both PFS and OS in patients with stage IB and IIA cervical cancer.
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Affiliation(s)
- Wan Kyu Eo
- Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Byung Su Kwon
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine; Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Ki Hyung Kim
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine; Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Heung Yeol Kim
- Department of Obstetrics and Gynecology, College of Medicine, Kosin University, Busan, Korea
| | - Hong-Bae Kim
- Department of Obstetrics and Gynecology, Kangnam Sacred Heart Hospital, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Korea
| | - Suk Bong Koh
- Department of Obstetrics and Gynecology, Catholic University of Daegu, School of Medicine, Daegu, Korea
| | - Sungwook Chun
- Department of Obstetrics and Gynecology, College of Medicine, Inje University, Busan, Korea
| | - Yong Il Ji
- Department of Obstetrics and Gynecology, College of Medicine, Inje University, Busan, Korea
| | - Ji Young Lee
- Department of Obstetrics and Gynecology, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Jeong Namkung
- Department of Obstetrics and Gynecology, Catholic University, Seoul, Republic of Korea
| | - Sanghoon Kwon
- Department of Obstetrics and Gynecology, Keimyung University, School of Medicine, Daegu, Korea
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Wang X, Jin Y, Zhang H, Huang X, Zhang Y, Zhu J. MicroRNA-599 inhibits metastasis and epithelial-mesenchymal transition via targeting EIF5A2 in gastric cancer. Biomed Pharmacother 2018; 97:473-480. [PMID: 29091897 DOI: 10.1016/j.biopha.2017.10.069] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/01/2017] [Accepted: 10/16/2017] [Indexed: 02/07/2023] Open
Abstract
The reliable truth that exceptional miRNAs contribute to gastric cancer (GC) development and progression had been testified by researchers. However, the roles of various miRNAs in GC remain to be determined. In present research, we firmly believed that the expression of miR-599 in GC cell lines and tissues was declined. Clinical analysis disclosed that poor prognostic features, which incorporated lymph node metastasis and advanced TNM stage, could be expressively influenced by down-regulation of miR-599. For 5-year predicted-survival of GC patients, miR-599 was also confirmed to be a specialty prognostic marker. Notably, overmuch expression of miR-599 restricted cell migration, invasion and EMT progress, while down-regulated miR-599 reversed the effect in vitro and in vivo. Through directly binding to the 3'-UTR, miR-599 could possess EIF5A2 efficiently. In clinical samples of GC, miR-599 was inversely correlated with EIF5A2, which was upregulated in GC. The influence of miR-599 on migration, invasion and EMT progress could be partially discarded through alternation of EIF5A2 expression. Conclusively, our results manifested that miR-599 possessed the function of tumor suppressor gene in regulating EMT and metastasizing GC via targeting EIF5A2. Therefore, miR-599 has the capacity to become a therapeutic target and prognostic marker for GC.
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Affiliation(s)
- Xinyan Wang
- Department of medical Oncology, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 310002, China
| | - Yifei Jin
- Department of medical Oncology, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 310002, China
| | - Hui Zhang
- Department of medical Oncology, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 310002, China
| | - Xinyu Huang
- Department of medical Oncology, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 310002, China
| | - Yuanhui Zhang
- Department of medical Oncology, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 310002, China
| | - Jianwei Zhu
- Department of medical Oncology, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 310002, China.
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Zang Y, Zhang X, Yan L, Gu G, Li D, Zhang Y, Fang L, Fu S, Ren J, Xu Z. Eukaryotic Translation Initiation Factor 3b is both a Promising Prognostic Biomarker and a Potential Therapeutic Target for Patients with Clear Cell Renal Cell Carcinoma. J Cancer 2017; 8:3049-3061. [PMID: 28928896 PMCID: PMC5604456 DOI: 10.7150/jca.19594] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 08/06/2017] [Indexed: 12/24/2022] Open
Abstract
Eukaryotic translation initiation factors (eIFs) constitute a new class of therapeutic cancer targets. EIF3b is the major scaffold protein of eIF3 (the largest core of eIFs). We sought to define the role played by and the mechanism of action of eIF3b in patients with clear cell renal cell carcinoma (ccRCC). We found that high-level eIF3b expression in tumors was not only associated with an aggressive tumor phenotype, but was also independently prognostic for patients with ccRCC. Knockdown of eIF3b impaired the action of the Akt pathway, thus inhibiting cell proliferation by disrupting the cell cycle and triggering apoptosis. Furthermore, the epithelial-to-mesenchymal transition was impaired after eIF3b depletion, via suppression of cell migration and invasion. Additionally, eIF3b knockdown significantly inhibited the growth of subcutaneous xenografts in mice. Together, these data show that eIF3b is both a promising prognostic biomarker and a potential therapeutic target for patients with ccRCC.
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Affiliation(s)
- Yuanwei Zang
- Department of Urology, Qilu Hospital, Shandong University, 107 Wenhua West Road, Jinan 250012, China
| | - Xiang Zhang
- Department of Urology, Qilu Hospital, Shandong University, 107 Wenhua West Road, Jinan 250012, China
| | - Lei Yan
- Department of Urology, Qilu Hospital, Shandong University, 107 Wenhua West Road, Jinan 250012, China
| | - Gangli Gu
- Department of Urology, Qilu Hospital, Shandong University, 107 Wenhua West Road, Jinan 250012, China
| | - Dawei Li
- Department of Urology, Qilu Hospital, Shandong University, 107 Wenhua West Road, Jinan 250012, China
| | - Yongzhen Zhang
- Department of Urology, Qilu Hospital, Shandong University, 107 Wenhua West Road, Jinan 250012, China
| | - Liang Fang
- Department of Urology, Qilu Hospital, Shandong University, 107 Wenhua West Road, Jinan 250012, China
| | - Shanshan Fu
- Department of Gastroenterology, Shandong Provincial Qianfoshan Hospital, 16766 Jingshi Road, Jinan 250014, China
| | - Juchao Ren
- Department of Urology, Qilu Hospital, Shandong University, 107 Wenhua West Road, Jinan 250012, China
| | - Zhonghua Xu
- Department of Urology, Qilu Hospital, Shandong University, 107 Wenhua West Road, Jinan 250012, China
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