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Pu Y, Yang J, Pan Q, Li C, Wang L, Xie X, Chen X, Xiao F, Chen G. MGST3 regulates BACE1 protein translation and amyloidogenesis by controlling the RGS4-mediated AKT signaling pathway. J Biol Chem 2024; 300:107530. [PMID: 38971310 PMCID: PMC11332907 DOI: 10.1016/j.jbc.2024.107530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 06/03/2024] [Accepted: 06/16/2024] [Indexed: 07/08/2024] Open
Abstract
Microsomal glutathione transferase 3 (MGST3) regulates eicosanoid and glutathione metabolism. These processes are associated with oxidative stress and apoptosis, suggesting that MGST3 might play a role in the pathophysiology of Alzheimer's disease. Here, we report that knockdown (KD) of MGST3 in cell lines reduced the protein level of beta-site amyloid precursor protein cleaving enzyme 1 (BACE1) and the resulting amyloidogenesis. Interestingly, MGST3 KD did not alter intracellular reactive oxygen species level but selectively reduced the expression of apoptosis indicators which could be associated with the receptor of cysteinyl leukotrienes, the downstream metabolites of MGST3 in arachidonic acid pathway. We then showed that the effect of MGST3 on BACE1 was independent of cysteinyl leukotrienes but involved a translational mechanism. Further RNA-seq analysis identified that regulator of G-protein signaling 4 (RGS4) was a target gene of MGST3. Silencing of RGS4 inhibited BACE1 translation and prevented MGST3 KD-mediated reduction of BACE1. The potential mechanism was related to AKT activity, as the protein level of phosphorylated AKT was significantly reduced by silencing of MGST3 and RGS4, and the AKT inhibitor abolished the effect of MGST3/RGS4 on phosphorylated AKT and BACE1. Together, MGST3 regulated amyloidogenesis by controlling BACE1 protein expression, which was mediated by RGS4 and downstream AKT signaling pathway.
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Affiliation(s)
- Yalan Pu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China; Department of Neurology, Langzhong People's Hospital, Nanchong, Sichuan, China
| | - Jie Yang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China; Affiliated Sichuan Provincial Rehabilitation Hospital of Chengdu University of TCM, Sichuan, China
| | - Qiuling Pan
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Chenlu Li
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Lu Wang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Xiaoyong Xie
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Xue Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China
| | - Fei Xiao
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China.
| | - Guojun Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, China.
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Chen X, An Y, Tan M, Xie D, Liu L, Xu B. Biological functions and research progress of eIF4E. Front Oncol 2023; 13:1076855. [PMID: 37601696 PMCID: PMC10435865 DOI: 10.3389/fonc.2023.1076855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/30/2023] [Indexed: 08/22/2023] Open
Abstract
The eukaryotic translation initiation factor eIF4E can specifically bind to the cap structure of an mRNA 5' end, mainly regulating translation initiation and preferentially enhancing the translation of carcinogenesis related mRNAs. The expression of eIF4E is closely related to a variety of malignant tumors. In tumor cells, eIF4E activity is abnormally increased, which stimulates cell growth, metastasis and translation of related proteins. The main factors affecting eIF4E activity include intranuclear regulation, phosphorylation of 4EBPs, and phosphorylation and sumoylation of eIF4E. In this review, we summarize the biological functions and the research progress of eIF4E, the main influencing factors of eIF4E activity, and the recent progress of drugs targeting eIF4E, in the hope of providing new insights for the treatment of multiple malignancies and development of targeted drugs.
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Affiliation(s)
- Xiaocong Chen
- Department of Clinical Medicine, Fenyang College of Shanxi Medical University, Fenyang, China
| | - Yang An
- Department of Clinical Medicine, Fenyang College of Shanxi Medical University, Fenyang, China
| | - Mengsi Tan
- Department of Clinical Medicine, Fenyang College of Shanxi Medical University, Fenyang, China
| | - Dongrui Xie
- Department of Clinical Medicine, Fenyang College of Shanxi Medical University, Fenyang, China
| | - Ling Liu
- Department of Medical Laboratory Science, Fenyang College of Shanxi Medical University, Fenyang, China
- Key Laboratory of Lvliang for Clinical Molecular Diagnostics, Fenyang, China
- Department of Clinical Laboratory, Fenyang Hospital of Shanxi Province, Fenyang, China
| | - Benjin Xu
- Department of Medical Laboratory Science, Fenyang College of Shanxi Medical University, Fenyang, China
- Key Laboratory of Lvliang for Clinical Molecular Diagnostics, Fenyang, China
- Department of Clinical Laboratory, Fenyang Hospital of Shanxi Province, Fenyang, China
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3
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Liu Y, Zhou G, Song L, Wen Q, Xie S, Chen L, Wang L, Xie X, Chen X, Pu Y, Chen G. DEAD-Box Helicase 17 Promotes Amyloidogenesis by Regulating BACE1 Translation. Brain Sci 2023; 13:brainsci13050745. [PMID: 37239217 DOI: 10.3390/brainsci13050745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 04/17/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Amyloidogenesis is one of the key pathophysiological changes in Alzheimer's disease (AD). Accumulation of the toxic Aβ results from the catalytic processing of β-amyloid precursor protein (APP) associated β-amyloid converting enzyme 1 (BACE1) activity. It is reported that dead-box helicase 17 (DDX17) controls RNA metabolism and is involved in the development of multiple diseases. However, whether DDX17 might play a role in amyloidogenesis has not been documented. In the present study, we found that DDX17 protein level was significantly increased in HEK and SH-SY5Y cells that stably express full-length APP (HEK-APP and Y5Y-APP) and in the brain of APP/PS1 mice, an animal model of AD. DDX17 knockdown, as opposed to DDX17 overexpression, markedly reduced the protein levels of BACE1 and the β-amyloid peptide (Aβ) in Y5Y-APP cells. We further found that DDX17-mediated enhancement of BACE1 was selectively attenuated by translation inhibitors. Specifically, DDX17 selectively interacted with the 5' untranslated region (5'UTR) of BACE1 mRNA, and deletion of the 5'UTR abolished the effect of DDX17 on luciferase activity or protein level of BACE1. Here, we show that the enhanced expression of DDX17 in AD was associated with amyloidogenesis; through the 5'UTR-dependent BACE1 translation, DDX17 might serve as an important mediator contributing to the progression of AD.
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Affiliation(s)
- Yue Liu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing 400016, China
| | - Guifeng Zhou
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing 400016, China
| | - Li Song
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing 400016, China
| | - Qixin Wen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing 400016, China
| | - Shiqi Xie
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing 400016, China
| | - Long Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing 400016, China
| | - Lu Wang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing 400016, China
| | - Xiaoyong Xie
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing 400016, China
| | - Xue Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing 400016, China
| | - Yalan Pu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing 400016, China
| | - Guojun Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, 1 Youyi Road, Chongqing 400016, China
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Mars JC, Ghram M, Culjkovic-Kraljacic B, Borden KLB. The Cap-Binding Complex CBC and the Eukaryotic Translation Factor eIF4E: Co-Conspirators in Cap-Dependent RNA Maturation and Translation. Cancers (Basel) 2021; 13:6185. [PMID: 34944805 PMCID: PMC8699206 DOI: 10.3390/cancers13246185] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 12/26/2022] Open
Abstract
The translation of RNA into protein is a dynamic process which is heavily regulated during normal cell physiology and can be dysregulated in human malignancies. Its dysregulation can impact selected groups of RNAs, modifying protein levels independently of transcription. Integral to their suitability for translation, RNAs undergo a series of maturation steps including the addition of the m7G cap on the 5' end of RNAs, splicing, as well as cleavage and polyadenylation (CPA). Importantly, each of these steps can be coopted to modify the transcript signal. Factors that bind the m7G cap escort these RNAs through different steps of maturation and thus govern the physical nature of the final transcript product presented to the translation machinery. Here, we describe these steps and how the major m7G cap-binding factors in mammalian cells, the cap binding complex (CBC) and the eukaryotic translation initiation factor eIF4E, are positioned to chaperone transcripts through RNA maturation, nuclear export, and translation in a transcript-specific manner. To conceptualize a framework for the flow and integration of this genetic information, we discuss RNA maturation models and how these integrate with translation. Finally, we discuss how these processes can be coopted by cancer cells and means to target these in malignancy.
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Affiliation(s)
- Jean-Clement Mars
- Institute for Research in Immunology and Cancer (IRIC), Université de Montréal, Pavillion Marcelle-Coutu, Chemin Polytechnique, Montreal, QC H3T 1J4, Canada
| | - Mehdi Ghram
- Institute for Research in Immunology and Cancer (IRIC), Université de Montréal, Pavillion Marcelle-Coutu, Chemin Polytechnique, Montreal, QC H3T 1J4, Canada
| | - Biljana Culjkovic-Kraljacic
- Institute for Research in Immunology and Cancer (IRIC), Université de Montréal, Pavillion Marcelle-Coutu, Chemin Polytechnique, Montreal, QC H3T 1J4, Canada
| | - Katherine L B Borden
- Institute for Research in Immunology and Cancer (IRIC), Université de Montréal, Pavillion Marcelle-Coutu, Chemin Polytechnique, Montreal, QC H3T 1J4, Canada
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Vo DK, Engler A, Stoimenovski D, Hartig R, Kaehne T, Kalinski T, Naumann M, Haybaeck J, Nass N. Interactome Mapping of eIF3A in a Colon Cancer and an Immortalized Embryonic Cell Line Using Proximity-Dependent Biotin Identification. Cancers (Basel) 2021; 13:cancers13061293. [PMID: 33799492 PMCID: PMC7999522 DOI: 10.3390/cancers13061293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/08/2021] [Accepted: 03/11/2021] [Indexed: 12/12/2022] Open
Abstract
Translation initiation comprises complex interactions of eukaryotic initiation factor (eIF) subunits and the structural elements of the mRNAs. Translation initiation is a key process for building the cell's proteome. It not only determines the total amount of protein synthesized but also controls the translation efficiency for individual transcripts, which is important for cancer or ageing. Thus, understanding protein interactions during translation initiation is one key that contributes to understanding how the eIF subunit composition influences translation or other pathways not yet attributed to eIFs. We applied the BioID technique to two rapidly dividing cell lines (the immortalized embryonic cell line HEK-293T and the colon carcinoma cell line HCT-166) in order to identify interacting proteins of eIF3A, a core subunit of the eukaryotic initiation factor 3 complex. We identified a total of 84 interacting proteins, with very few proteins being specific to one cell line. When protein biosynthesis was blocked by thapsigargin-induced endoplasmic reticulum (ER) stress, the interacting proteins were considerably smaller in number. In terms of gene ontology, although eIF3A interactors are mainly part of the translation machinery, protein folding and RNA binding were also found. Cells suffering from ER-stress show a few remaining interactors which are mainly ribosomal proteins or involved in RNA-binding.
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Affiliation(s)
- Diep-Khanh Vo
- Department of Pathology, Medical Faculty, Otto-von-Guericke University Magdeburg, D-39120 Magdeburg, Germany; (D.-K.V.); (D.S.); (T.K.); (J.H.)
| | - Alexander Engler
- Institute of Experimental Internal Medicine, Medical Faculty, Otto von Guericke University, D-39120 Magdeburg, Germany; (A.E.); (T.K.); (M.N.)
| | - Darko Stoimenovski
- Department of Pathology, Medical Faculty, Otto-von-Guericke University Magdeburg, D-39120 Magdeburg, Germany; (D.-K.V.); (D.S.); (T.K.); (J.H.)
| | - Roland Hartig
- Institute of Molecular and Clinical Immunology, Otto von Guericke University Magdeburg, Leipziger Str. 44, D-39120 Magdeburg, Germany;
| | - Thilo Kaehne
- Institute of Experimental Internal Medicine, Medical Faculty, Otto von Guericke University, D-39120 Magdeburg, Germany; (A.E.); (T.K.); (M.N.)
| | - Thomas Kalinski
- Department of Pathology, Medical Faculty, Otto-von-Guericke University Magdeburg, D-39120 Magdeburg, Germany; (D.-K.V.); (D.S.); (T.K.); (J.H.)
| | - Michael Naumann
- Institute of Experimental Internal Medicine, Medical Faculty, Otto von Guericke University, D-39120 Magdeburg, Germany; (A.E.); (T.K.); (M.N.)
| | - Johannes Haybaeck
- Department of Pathology, Medical Faculty, Otto-von-Guericke University Magdeburg, D-39120 Magdeburg, Germany; (D.-K.V.); (D.S.); (T.K.); (J.H.)
- Department of Pathology, Neuropathology, and Molecular Pathology, Medical University of Innsbruck, A-6020 Innsbruck, Austria
- Department of Pathology, Diagnostic & Research Center for Molecular BioMedicine, Institute of Pathology, Medical University of Graz, A-8010 Graz, Austria
- Center for Biomarker Research in Medicine, A-8010 Graz, Austria
| | - Norbert Nass
- Department of Pathology, Medical Faculty, Otto-von-Guericke University Magdeburg, D-39120 Magdeburg, Germany; (D.-K.V.); (D.S.); (T.K.); (J.H.)
- Correspondence:
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6
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Abstract
Inhibiting eukaryotic protein translation with small molecules is emerging as a powerful therapeutic strategy. The advantage of targeting cellular translational machinery is that it is required for the highly proliferative state of many neoplastic cells, replication of certain viruses, and ultimately the expression of a wide variety of protein targets. Although, this approach has been exploited to develop clinical agents, such as homoharringtonine (HHT, 1), used to treat chronic myeloid leukemia (CML), inhibiting components of the translational machinery is often associated with cytotoxic phenotypes. However, recent studies have demonstrated that certain small molecules can inhibit the translation of specific subsets of proteins, leading to lower cytotoxicity, and opening-up therapeutic opportunities for translation inhibitors to be deployed in indications beyond oncology and infectious disease. This review summarizes efforts to develop inhibitors of the eukaryotic translational machinery as therapeutic agents and highlights emerging opportunities for translation inhibitors in the future.
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Affiliation(s)
- Angela Fan
- Department of Discovery Chemistry, Merck & Co., Inc., South San Francisco, California 94080, United States
| | - Phillip P Sharp
- Department of Discovery Chemistry, Merck & Co., Inc., South San Francisco, California 94080, United States
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7
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Vishnoi K, Ke R, Saini KS, Viswakarma N, Nair RS, Das S, Chen Z, Rana A, Rana B. Berberine Represses β-Catenin Translation Involving 4E-BPs in Hepatocellular Carcinoma Cells. Mol Pharmacol 2020; 99:1-16. [PMID: 33130557 DOI: 10.1124/molpharm.120.000029] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 10/02/2020] [Indexed: 12/17/2022] Open
Abstract
Aberrant activation of Wnt/β-catenin axis occurs in several gastrointestinal malignancies due to inactivating mutations of adenomatous polyposis coli (in colorectal cancer) or activating mutations of β-catenin itself [in hepatocellular carcinoma (HCC)]. These lead to β-catenin stabilization, increase in β-catenin/T-cell factor (TCF)-mediated transcriptional activation, and target gene expression, many of which are involved in tumor progression. While studying pharmaceutical agents that can target β-catenin in cancer cells, we observed that the plant compound berberine (BBR), a potent activator of AMP-activated protein kinase (AMPK), can reduce β-catenin expression and downstream signaling in HCC cells in a dose-dependent manner. More in-depth analyses to understand the mechanism revealed that BBR-induced reduction of β-catenin occurs independently of AMPK activation and does not involve transcriptional or post-translational mechanisms. Pretreatment with protein synthesis inhibitor cycloheximide antagonized BBR-induced β-catenin reduction, suggesting that BBR affects β-catenin translation. BBR treatment also antagonized mammalian target of rapamycin (mTOR) activity and was associated with increased recruitment of eukaryotic translation initiation factor 4E-binding protein (4E-BP) 1 in the translational complex, which was revealed by 7-methyl-cap-binding assays, suggesting inhibition of cap-dependent translation. Interestingly, knocking down 4E-BP1 and 4E-BP2 significantly attenuated BBR-induced reduction of β-catenin levels and expression of its downstream target genes. Moreover, cells with 4E-BP knockdown were resistant to BBR-induced cell death and were resensitized to BBR after pharmacological inhibition of β-catenin. Our findings indicate that BBR antagonizes β-catenin pathway by inhibiting β-catenin translation and mTOR activity and thereby reduces HCC cell survival. These also suggest that BBR could be used for targeting HCCs that express mutated/activated β-catenin variants that are currently undruggable. SIGNIFICANCE STATEMENT: β-catenin signaling is aberrantly activated in different gastrointestinal cancers, including hepatocellular carcinoma, which is currently undruggable. In this study we describe a novel mechanism of targeting β-catenin translation via utilizing a plant compound, berberine. Our findings provide a new avenue of targeting β-catenin axis in cancer, which can be utilized toward the designing of effective therapeutic strategies to combat β-catenin-dependent cancers.
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Affiliation(s)
- Kanchan Vishnoi
- Department of Surgery, Division of Surgical Oncology (K.V., R.K., K.S.S., N.V., R.S.N., S.D., A.R., B.R.), University of Illinois Hospital and Health Sciences System Cancer Center (S.D., A.R., B.R.), and Division of Epidemiology and Biostatistics, School of Public Health (Z.C.), University of Illinois at Chicago, Chicago, Illinois; Biostatistics Shared Resource Core, University of Illinois Cancer Institute, Chicago, Illinois (Z.C.); and Jesse Brown VA Medical Center, Chicago, Illinois (A.R., B.R.)
| | - Rong Ke
- Department of Surgery, Division of Surgical Oncology (K.V., R.K., K.S.S., N.V., R.S.N., S.D., A.R., B.R.), University of Illinois Hospital and Health Sciences System Cancer Center (S.D., A.R., B.R.), and Division of Epidemiology and Biostatistics, School of Public Health (Z.C.), University of Illinois at Chicago, Chicago, Illinois; Biostatistics Shared Resource Core, University of Illinois Cancer Institute, Chicago, Illinois (Z.C.); and Jesse Brown VA Medical Center, Chicago, Illinois (A.R., B.R.)
| | - Karan S Saini
- Department of Surgery, Division of Surgical Oncology (K.V., R.K., K.S.S., N.V., R.S.N., S.D., A.R., B.R.), University of Illinois Hospital and Health Sciences System Cancer Center (S.D., A.R., B.R.), and Division of Epidemiology and Biostatistics, School of Public Health (Z.C.), University of Illinois at Chicago, Chicago, Illinois; Biostatistics Shared Resource Core, University of Illinois Cancer Institute, Chicago, Illinois (Z.C.); and Jesse Brown VA Medical Center, Chicago, Illinois (A.R., B.R.)
| | - Navin Viswakarma
- Department of Surgery, Division of Surgical Oncology (K.V., R.K., K.S.S., N.V., R.S.N., S.D., A.R., B.R.), University of Illinois Hospital and Health Sciences System Cancer Center (S.D., A.R., B.R.), and Division of Epidemiology and Biostatistics, School of Public Health (Z.C.), University of Illinois at Chicago, Chicago, Illinois; Biostatistics Shared Resource Core, University of Illinois Cancer Institute, Chicago, Illinois (Z.C.); and Jesse Brown VA Medical Center, Chicago, Illinois (A.R., B.R.)
| | - Rakesh Sathish Nair
- Department of Surgery, Division of Surgical Oncology (K.V., R.K., K.S.S., N.V., R.S.N., S.D., A.R., B.R.), University of Illinois Hospital and Health Sciences System Cancer Center (S.D., A.R., B.R.), and Division of Epidemiology and Biostatistics, School of Public Health (Z.C.), University of Illinois at Chicago, Chicago, Illinois; Biostatistics Shared Resource Core, University of Illinois Cancer Institute, Chicago, Illinois (Z.C.); and Jesse Brown VA Medical Center, Chicago, Illinois (A.R., B.R.)
| | - Subhasis Das
- Department of Surgery, Division of Surgical Oncology (K.V., R.K., K.S.S., N.V., R.S.N., S.D., A.R., B.R.), University of Illinois Hospital and Health Sciences System Cancer Center (S.D., A.R., B.R.), and Division of Epidemiology and Biostatistics, School of Public Health (Z.C.), University of Illinois at Chicago, Chicago, Illinois; Biostatistics Shared Resource Core, University of Illinois Cancer Institute, Chicago, Illinois (Z.C.); and Jesse Brown VA Medical Center, Chicago, Illinois (A.R., B.R.)
| | - Zhengjia Chen
- Department of Surgery, Division of Surgical Oncology (K.V., R.K., K.S.S., N.V., R.S.N., S.D., A.R., B.R.), University of Illinois Hospital and Health Sciences System Cancer Center (S.D., A.R., B.R.), and Division of Epidemiology and Biostatistics, School of Public Health (Z.C.), University of Illinois at Chicago, Chicago, Illinois; Biostatistics Shared Resource Core, University of Illinois Cancer Institute, Chicago, Illinois (Z.C.); and Jesse Brown VA Medical Center, Chicago, Illinois (A.R., B.R.)
| | - Ajay Rana
- Department of Surgery, Division of Surgical Oncology (K.V., R.K., K.S.S., N.V., R.S.N., S.D., A.R., B.R.), University of Illinois Hospital and Health Sciences System Cancer Center (S.D., A.R., B.R.), and Division of Epidemiology and Biostatistics, School of Public Health (Z.C.), University of Illinois at Chicago, Chicago, Illinois; Biostatistics Shared Resource Core, University of Illinois Cancer Institute, Chicago, Illinois (Z.C.); and Jesse Brown VA Medical Center, Chicago, Illinois (A.R., B.R.)
| | - Basabi Rana
- Department of Surgery, Division of Surgical Oncology (K.V., R.K., K.S.S., N.V., R.S.N., S.D., A.R., B.R.), University of Illinois Hospital and Health Sciences System Cancer Center (S.D., A.R., B.R.), and Division of Epidemiology and Biostatistics, School of Public Health (Z.C.), University of Illinois at Chicago, Chicago, Illinois; Biostatistics Shared Resource Core, University of Illinois Cancer Institute, Chicago, Illinois (Z.C.); and Jesse Brown VA Medical Center, Chicago, Illinois (A.R., B.R.)
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8
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Ahmad Z, Jacobson BA, McDonald MW, Vattendahl Vidal N, Vattendahl Vidal G, Chen S, Dillenburg M, Okon AM, Patel MR, Wagner CR, Kratzke RA. Repression of oncogenic cap-mediated translation by 4Ei-10 diminishes proliferation, enhances chemosensitivity and alters expression of malignancy-related proteins in mesothelioma. Cancer Chemother Pharmacol 2020; 85:425-432. [PMID: 31974652 DOI: 10.1007/s00280-020-04029-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 01/06/2020] [Indexed: 02/07/2023]
Abstract
Activated cap-dependent translation promotes cancer by stimulating translation of mRNAs encoding malignancy-promoting proteins. The nucleoside monophosphate Protide, 4Ei-10, undergoes intracellular uptake and conversion by Hint1 to form 7-Cl-Ph-Ethyl-GMP. 7-Cl-Ph-Ethyl-GMP is an analog of cap and inhibits protein translation by binding and sequestering eIF4E thus blocking eIF4E from binding to the mRNA cap. The effects of inhibiting translation initiation by disruption of the eIF4F complex with 4Ei-10 were examined in malignant mesothelioma (MM). In a cell-free assay system, formation of the eIF4F complex was disabled in response to exposure to 4Ei-10. Treatment of MM with 4Ei-10 resulted in decreased cell proliferation, increased sensitivity to pemetrexed and altered expression of malignancy-related proteins. In light of these findings, suppression of translation initiation by small molecule inhibitors like 4Ei-10 alone or in combination with pemetrexed represents an encouraging strategy meriting further evaluation in the treatment of MM.
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Affiliation(s)
- Zeeshan Ahmad
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Blake A Jacobson
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | | | | | | | | | - Maxwell Dillenburg
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN, USA
| | - Aniekan M Okon
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN, USA
| | - Manish R Patel
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Carston R Wagner
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN, USA
| | - Robert A Kratzke
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA. .,Division of Heme-Onc-Transplant, University of Minnesota Medical School, MMC 480, 420 Delaware St SE, Minneapolis, MN, 55455, USA.
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9
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Correddu D, Leung IK. Targeting mRNA translation in Parkinson’s disease. Drug Discov Today 2019; 24:1295-1303. [DOI: 10.1016/j.drudis.2019.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/23/2019] [Accepted: 04/02/2019] [Indexed: 01/22/2023]
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10
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De A, Jacobson BA, Peterson MS, Stelzner ME, Jay-Dixon J, Kratzke MG, Patel MR, Bitterman PB, Kratzke RA. Inhibition of oncogenic cap-dependent translation by 4EGI-1 reduces growth, enhances chemosensitivity and alters genome-wide translation in non-small cell lung cancer. Cancer Gene Ther 2018; 26:157-165. [DOI: 10.1038/s41417-018-0058-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/22/2018] [Accepted: 10/20/2018] [Indexed: 12/20/2022]
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