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Pan Q, Yu F, Jin H, Zhang P, Huang X, Peng J, Xie X, Li X, Ma N, Wei Y, Wen W, Zhang J, Zhang B, Yu H, Xiao Y, Liu R, Liu Q, Meng X, Lee M. eIF3f Mediates SGOC Pathway Reprogramming by Enhancing Deubiquitinating Activity in Colorectal Cancer. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300759. [PMID: 37544925 PMCID: PMC10520677 DOI: 10.1002/advs.202300759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/25/2023] [Indexed: 08/08/2023]
Abstract
Numerous studies have demonstrated that individual proteins can moonlight. Eukaryotic Initiation translation factor 3, f subunit (eIF3f) is involved in critical biological functions; however, its role independent of protein translation in regulating colorectal cancer (CRC) is not characterized. Here, it is demonstrated that eIF3f is upregulated in CRC tumor tissues and that both Wnt and EGF signaling pathways are participating in eIF3f's oncogenic impact on targeting phosphoglycerate dehydrogenase (PHGDH) during CRC development. Mechanistically, EGF blocks FBXW7β-mediated PHGDH ubiquitination through GSK3β deactivation, and eIF3f antagonizes FBXW7β-mediated PHGDH ubiquitination through its deubiquitinating activity. Additionally, Wnt signals transcriptionally activate the expression of eIF3f, which also exerts its deubiquitinating activity toward MYC, thereby increasing MYC-mediated PHGDH transcription. Thereby, both impacts allow eIF3f to elevate the expression of PHGDH, enhancing Serine-Glycine-One-Carbon (SGOC) signaling pathway to facilitate CRC development. In summary, the study uncovers the intrinsic role and underlying molecular mechanism of eIF3f in SGOC signaling, providing novel insight into the strategies to target eIF3f-PHGDH axis in CRC.
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Affiliation(s)
- Qihao Pan
- Department of General SurgeryThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Department of Obstetrics and GynecologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Fenghai Yu
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Huilin Jin
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Peng Zhang
- Department of General SurgeryThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Xiaoling Huang
- Department of General SurgeryThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Jingxuan Peng
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Xiaoshan Xie
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Xiangli Li
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Ning Ma
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Yue Wei
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Weijie Wen
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Jieping Zhang
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Boyu Zhang
- Department of General SurgeryThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Hongyan Yu
- Department of Clinical Biological Resource BankGuangzhou Institute of PediatricsGuangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou510623China
| | - Yuanxun Xiao
- Burn Plastic SurgeryYue bei People's HospitalWujiang512099China
| | - Ran‐yi Liu
- State Key Laboratory of Oncology in South China & Collaborative Innovation Center of Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhou510060China
| | - Qingxin Liu
- Department of General SurgeryThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Xiangqi Meng
- Department of General SurgeryThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
| | - Mong‐Hong Lee
- Department of General SurgeryThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor DiseasesThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
- Department of OncologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhou510655China
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An Immunity-Associated lncRNA Signature for Predicting Prognosis in Gastric Adenocarcinoma. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:3035073. [PMID: 35509706 PMCID: PMC9061059 DOI: 10.1155/2022/3035073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 03/05/2022] [Accepted: 03/31/2022] [Indexed: 11/18/2022]
Abstract
Background Gastric adenocarcinoma (GAD) is one of the most common tumors in the world and the prognosis is still very poor. Objective We sought to identify reliable prognostic biomarkers for the progression of GAD and the sensitivity to drug therapy. Method The RNA sequencing data of GAD was downloaded from the Cancer Genome Atlas (TCGA) database and used for analysis. Differentially expressed, immune-related lncRNA (DEIRlncRNA) was characterized by differential analysis and correlation analysis. Univariate Cox regression analysis was used to identify DEIRlncRNA associated with prognosis. Least absolute shrinkage and selection operator (LASSO) regression analysis allowed us to determine a signature composed of eight IRlncRNAs. Based on this signature, we further performed gene set enrichment analysis (GSEA) and somatic mutation analysis to evaluate the ability of this signature to predict prognosis. Results In total, 72 immune-related lncRNAs (DEIRlncRNAs) with prognostic value were identified. These lncRNAs were used to construct a model containing eight immune-related lncRNAs (8-IRlncRNAs). Based on this risk model, we divided GAD patients into high-risk and low-risk groups. The analysis showed that the prognosis of the two groups was different and that the high-risk group had worse overall survival (OS). Immune cell infiltration analysis showed that the proportion of memory B cells increased in the high-risk group while the proportion of macrophages M1, T cells, CD4 memory-activated cells, and T cell follicular helpers decreased. GSEA results showed that 8-IRlncRNA was significantly enriched in tumorigenesis pathways such as myc. The results of somatic mutation analysis showed that the CDH1 gene was significantly mutated in the high-risk group. Conclusion A prognostic signature of 8-IRlncRNAs in GAD was established and this signature was able to predict the prognosis of GAD patients.
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Li J, Yu W, Ge J, Zhang J, Wang Y, Wang P, Shi G. Targeting eIF3f Suppresses the Growth of Prostate Cancer Cells by Inhibiting Akt Signaling. Onco Targets Ther 2020; 13:3739-3750. [PMID: 32440143 PMCID: PMC7210466 DOI: 10.2147/ott.s244345] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 04/10/2020] [Indexed: 01/14/2023] Open
Abstract
Background Eukaryotic initiation factor 3 (eIF3) is the largest translation initiation factor, and oncogenic roles have been discovered for its subunits, including the f subunit (ie, eIF3f), in various human cancers. However, the roles of eIF3f in the development and progression of prostate cancer (PCa) have not been reported. Materials and Methods We performed in silico analysis to screen the expression of eIF3 subunits. Relevant shRNAs were used to knock down eIF3 subunits in 22Rv1 cells and cell proliferation was analyzed. eIF3f expression in PCa specimens was confirmed by immunohistochemistry. eIF3f knockdown was established to evaluate the effects of eIF3f on cell proliferation in vitro and in vivo. RNA‐seq, bioinformatics analysis and Western blotting were applied to explore the molecular details underlying the biological function of eIF3f in PCa cells. shRNA-resistant eIF3f and myristoylated-Akt were used to rescue the effects of eIF3f disturbance on PCa cells. Results Functional analyses confirmed that eIF3f is essential for PCa proliferation. Notably, the expression of eIF3f was found to be elevated in human PCa tissues as well as in PCa cell lines. eIF3f silencing significantly suppressed the growth of PCa cells, both in vitro and in vivo. eIF3f expression was positively correlated with Akt signaling activity in RNA-seq profiles and published prostate cohorts. Knockdown of eIF3f markedly reduced the levels of phosphorylated Akt in PCa cells. Exogenous expression of shRNA-resistant eIF3f in eIF3f knockdown cells restored Akt phosphorylation levels and cell growth. Importantly, rescue experiments revealed that ectopic expression of myristoylated-Akt partially alleviated the suppressive effects of eIF3f disturbance with respect to the growth of PCa cells. Conclusion These results suggested that eIF3f has an oncogenic role in PCa, mediated at least partially through the regulation of Akt signaling, and that eIF3f represents a potential target for the inhibition of PCa growth and progression.
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Affiliation(s)
- Junhong Li
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, People's Republic of China
| | - Wandong Yu
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, People's Republic of China
| | - Jianchao Ge
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, People's Republic of China
| | - Jun Zhang
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, People's Republic of China
| | - Yang Wang
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, People's Republic of China
| | - Pengyu Wang
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, People's Republic of China
| | - Guowei Shi
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, People's Republic of China
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Ma F, Li X, Ren J, Guo R, Li Y, Liu J, Sun Y, Liu Z, Jia J, Li W. Downregulation of eukaryotic translation initiation factor 3b inhibited proliferation and metastasis of gastric cancer. Cell Death Dis 2019; 10:623. [PMID: 31423012 PMCID: PMC6698483 DOI: 10.1038/s41419-019-1846-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 07/16/2019] [Accepted: 07/25/2019] [Indexed: 12/24/2022]
Abstract
Eukaryotic translation initiation factor 3 (eIF3) plays an important role in the regulation of mRNA translation, cell growth and cancer development. eIF3b is the main scaffolding subunit in the eIF3 complex and has been demonstrated to contribute to the development of several cancers. First, our study found that the downregulation of eIF3b could inhibit the proliferation and metastasis of gastric cancer cells by regulating the expression of cancer-related genes. In addition, the expression of eIF3b correlated with the stage and progression of gastric cancer and was shown to be upregulated in human chronic gastritis and in gastric cancer tissues compared with the expression of eIF3b in normal gastric tissues. Moreover, Helicobacter pylori (H. pylori) infection could upregulate the expression of eIF3b in gastric cancer cells, suggesting that eIF3b might be involved in the carcinogenic process of H. pylori. The above findings identified the oncogenic role of eIF3b in gastric cancer development, and this may contribute to the exploration and discovery of novel therapeutic targets for gastric cancer treatment.
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Affiliation(s)
- Fang Ma
- Key Laboratory for Experimental Teratology of Chinese Ministry of Education, The Shandong Provincial Key Laboratory of Infection and Immunology, Department of Microbiology, School of basic medical sciences, Shandong University-Karolinska Institutet Collaborative Laboratory for Cancer Research, Shandong University, Jinan, PR China
| | - Xue Li
- Key Laboratory for Experimental Teratology of Chinese Ministry of Education, The Shandong Provincial Key Laboratory of Infection and Immunology, Department of Microbiology, School of basic medical sciences, Shandong University-Karolinska Institutet Collaborative Laboratory for Cancer Research, Shandong University, Jinan, PR China
| | - Juchao Ren
- Department of Urology, Qilu Hospital, Shandong University, Jinan, PR China
| | - Ruiting Guo
- Key Laboratory for Experimental Teratology of Chinese Ministry of Education, The Shandong Provincial Key Laboratory of Infection and Immunology, Department of Microbiology, School of basic medical sciences, Shandong University-Karolinska Institutet Collaborative Laboratory for Cancer Research, Shandong University, Jinan, PR China
| | - Yuwei Li
- Key Laboratory for Experimental Teratology of Chinese Ministry of Education, The Shandong Provincial Key Laboratory of Infection and Immunology, Department of Microbiology, School of basic medical sciences, Shandong University-Karolinska Institutet Collaborative Laboratory for Cancer Research, Shandong University, Jinan, PR China
| | - Jichang Liu
- Key Laboratory for Experimental Teratology of Chinese Ministry of Education, The Shandong Provincial Key Laboratory of Infection and Immunology, Department of Microbiology, School of basic medical sciences, Shandong University-Karolinska Institutet Collaborative Laboratory for Cancer Research, Shandong University, Jinan, PR China
| | - Yundong Sun
- Key Laboratory for Experimental Teratology of Chinese Ministry of Education, The Shandong Provincial Key Laboratory of Infection and Immunology, Department of Microbiology, School of basic medical sciences, Shandong University-Karolinska Institutet Collaborative Laboratory for Cancer Research, Shandong University, Jinan, PR China
| | - Zhifang Liu
- Department of Biochemistry and Molecular Biology, School of basic medical sciences, Shandong University, Jinan, PR China
| | - Jihui Jia
- Key Laboratory for Experimental Teratology of Chinese Ministry of Education, The Shandong Provincial Key Laboratory of Infection and Immunology, Department of Microbiology, School of basic medical sciences, Shandong University-Karolinska Institutet Collaborative Laboratory for Cancer Research, Shandong University, Jinan, PR China
| | - Wenjuan Li
- Key Laboratory for Experimental Teratology of Chinese Ministry of Education, The Shandong Provincial Key Laboratory of Infection and Immunology, Department of Microbiology, School of basic medical sciences, Shandong University-Karolinska Institutet Collaborative Laboratory for Cancer Research, Shandong University, Jinan, PR China.
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He J, Wang X, Cai J, Wang W, Qin X. High expression of eIF3d is associated with poor prognosis in patients with gastric cancer. Cancer Manag Res 2017; 9:539-544. [PMID: 29123423 PMCID: PMC5661832 DOI: 10.2147/cmar.s142324] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Eukaryotic initiation factor 3 subunit d (eIF3d) is the largest subunit of eIF3, which is shown to promote protein synthesis in cancer cells. Increased expression of eIF3d has been shown in some types of cancers, but has not been previously studied in gastric cancer (GC). Thus, the aim of this study was to analyze eIF3d expression in GC. Patients and methods Expression of eIF3d was detected by immunohistochemistry in GC tissues and adjacent noncancerous (ANC) tissues. Samples were obtained from 210 patients with GC who had received curative gastrectomy. Clinicopathological features and survival rate were also analyzed. Results Expression rates of eIF3d in GC and ANC were 45.2% and 21.0%, respectively. High expression of eIF3d protein was significantly related to tumor stage, as determined by lymph node metastasis and depth of invasion (p<0.05). The Kaplan–Meier survival curves showed that patients with high eIF3d expression had a significantly poor overall survival (p=0.005). Multivariate Cox regression analyses showed that the level of eIF3d was an independent predictive factor of poor prognosis for GC (p=0.017). Conclusion Expression of eIF3d was upregulated in GC. High expression of eIF3d was determined as an independent poor prognostic factor in GC. It is suggested that eIF3d could be a good biomarker in GC.
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Affiliation(s)
- Jiaqi He
- Department of General Surgery, Huadong Hospital
| | - Xuefei Wang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Jianhua Cai
- Department of General Surgery, Huadong Hospital
| | - Wei Wang
- Department of General Surgery, Huadong Hospital
| | - Xinyu Qin
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
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