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Therapeutic targeting of eukaryotic initiation factor (eIF) 4E. Biochem Soc Trans 2023; 51:113-124. [PMID: 36661272 DOI: 10.1042/bst20220285] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/21/2023]
Abstract
Fundamental studies unraveled the role of eukaryotic initiation factor (eIF) 4E in mRNA translation and its control. Under physiological conditions, regulation of translation by eIF4E is essential to cellular homeostasis. Under stress, gene flow information is parsed by eIF4E to support adaptive mechanisms that favor cell survival. Dysregulated eIF4E activity fuels tumor formation and progression and modulates response to therapy. Thus, there has been heightened interest in understanding eIF4E function in controlling gene expression as well as developing strategies to block its activity to treat disease.
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Siekierska I, Lukaszewicz M, Worch R, Jankowska-Anyszka M, Piecyk K. Application of Phosphoramidate ProTide Technology for the Synthesis of 5'-mRNA Cap Analogs Modified on the Exocyclic Amine Group. ChemMedChem 2023; 18:e202200490. [PMID: 36658701 DOI: 10.1002/cmdc.202200490] [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: 09/09/2022] [Revised: 12/18/2022] [Indexed: 01/21/2023]
Abstract
Aryloxy triester phosphoramidate methodology, commonly known as ProTide technology, is one of the most widely used prodrug approaches applied to therapeutic nucleosides. This approach has been used extensively by the pharmaceutical industry and researchers in medicinal chemistry. Herein we report our adaptation of this effective method for the synthesis of bioactive 5'-mRNA cap analogues as inhibitors for targeting cap-dependent translation. The synthesis was performed in two main stages: preparation of N2-modified guanosine analogues and their subsequent transformation into prodrugs using phenylethoxy-l-alaninyl phosphorochloridate. The prepared pro-nucleotide cap analogues were tested for their capacity in enzymatic activation, inhibitory properties in a rabbit reticulocyte lysate system, and passive membrane translocation properties.
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Affiliation(s)
- Izabela Siekierska
- Faculty of Chemistry, University of Warsaw, 1 Pasteur St., 02-093, Warsaw, Poland
| | - Maciej Lukaszewicz
- Division of Biophysics, Institute of Experimental Physics, Faculty of Physics, University of Warsaw, 02-089, Warsaw, Poland
| | - Remigiusz Worch
- Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093, Warsaw, Poland
| | | | - Karolina Piecyk
- Faculty of Chemistry, University of Warsaw, 1 Pasteur St., 02-093, Warsaw, Poland
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Roy B, Navarro V, Peyrottes S. Prodrugs of Nucleoside 5'-Monophosphate Analogues: Overview of the Recent Literature Concerning their Synthesis and Applications. Curr Med Chem 2023; 30:1256-1303. [PMID: 36093825 DOI: 10.2174/0929867329666220909122820] [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: 04/20/2022] [Revised: 07/21/2022] [Accepted: 08/02/2022] [Indexed: 11/22/2022]
Abstract
Nucleoside analogues are widely used as anti-infectious and antitumoral agents. However, their clinical use may face limitations associated with their physicochemical properties, pharmacokinetic parameters, and/or their peculiar mechanisms of action. Indeed, once inside the cells, nucleoside analogues require to be metabolized into their corresponding (poly-)phosphorylated derivatives, mediated by cellular and/or viral kinases, in order to interfere with nucleic acid biosynthesis. Within this activation process, the first-phosphorylation step is often the limiting one and to overcome this limitation, numerous prodrug approaches have been proposed. Herein, we will focus on recent literature data (from 2015 and onwards) related to new prodrug strategies, the development of original synthetic approaches and novel applications of nucleotide prodrugs (namely pronucleotides) leading to the intracellular delivery of 5'-monophosphate nucleoside analogues.
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Affiliation(s)
- Béatrice Roy
- Team Nucleosides & Phosphorylated Effectors, Institute for Biomolecules Max Mousseron (IBMM), University of Montpellier, Route de Mende, 34293 Montpellier, France
| | - Valentin Navarro
- Team Nucleosides & Phosphorylated Effectors, Institute for Biomolecules Max Mousseron (IBMM), University of Montpellier, Route de Mende, 34293 Montpellier, France
| | - Suzanne Peyrottes
- Team Nucleosides & Phosphorylated Effectors, Institute for Biomolecules Max Mousseron (IBMM), University of Montpellier, Route de Mende, 34293 Montpellier, France
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Jiang W, Wang W, Sun L, Xiao Y, Ma T, Li B, Yan X, Wu Y, Li H, Lian J, He F. (-)-Gossypol enhances the anticancer activity of epirubicin via downregulating survivin in hepatocellular carcinoma. Chem Biol Interact 2022; 364:110060. [PMID: 35872041 DOI: 10.1016/j.cbi.2022.110060] [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: 05/03/2022] [Revised: 07/08/2022] [Accepted: 07/13/2022] [Indexed: 11/27/2022]
Abstract
Epirubicin (EPI)-based transarterial chemoembolization is an effective therapy for advanced hepatocellular carcinoma (HCC). However, EPI-induced survivin expression limits its tumor-killing potential in HCC. Interestingly, (-)-gossypol ((-)-Gsp), a male contraceptive, suppresses various malignancies. More importantly, (-)-Gsp also holds promise for enhancing the antitumor effects of chemotherapy in numerous cancer types. In the present study, we demonstrated for the first time that (-)-Gsp-sensitized EPI inhibited cell growth and induced apoptosis of HCC cells in vitro. Furthermore, (-)-Gsp sensitized EPI by attenuating the EPI-elevated survivin protein levels. Mechanistic studies showed that EPI stimulated survivin protein synthesis by promoting translation initiation, which was alleviated by (-)-Gsp mainly through suppressing the AKT-4EBP1/p70S6K-survivin and ERK-4EBP1-survivin pathways. HCC xenograft experiments in nude mice also showed that (-)-Gsp treatment acted synergistically with EPI to repress xenograft tumor growth. Overall, our proof-of-concept results may pave the way for novel strategies for the treatment of HCC based on the combination of EPI and (-)-Gsp.
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Affiliation(s)
- Wenbin Jiang
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Wan Wang
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, 400042, China
| | - Liangbo Sun
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Yunhua Xiao
- Department of Nuclear Medicine, First Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Teng Ma
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, 400042, China
| | - Bosheng Li
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Xiaojing Yan
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Yaran Wu
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, 400042, China
| | - Hongli Li
- Experimental Center of Basic Medicine, College of Basic Medical Sciences, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Jiqin Lian
- Department of Clinical Biochemistry, Faculty of Pharmacy and Laboratory Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China.
| | - Fengtian He
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University (Third Military Medical University), Chongqing, 400038, China.
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Zhang C, Bao T, Ke Y, Liu X, Wang X, Liao W, He Y, Wang L. Integrated analysis of ceRNA network reveals potential prognostic Hint1-related lncRNAs involved in hepatocellular carcinoma progression. World J Surg Oncol 2022; 20:67. [PMID: 35241097 PMCID: PMC8896107 DOI: 10.1186/s12957-022-02535-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 02/18/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Hint1 is a novel tumor suppressor gene, and inactivation of its expression is closely associated with the carcinogenesis of a variety of malignancies. The effects of Hint1 deficiency on the competing endogenous RNA (ceRNA) regulatory network in the context of HCC remains to be fully characterized. This study aims to explore Hint1-related hub lncRNAs in HCC and to establish a reliable prognostic model for HCC patients based on these hub lncRNAs. METHODS lncRNA + mRNA microarray was used to identify differentially expressed (DE) lncRNAs and mRNAs in Huh7 cells before and after Hint1 knockdown. A Hint1-related ceRNA network was mapped by bioinformation technology. The DEmRNAs in the network were analyzed via GO and KEGG enrichment analyses. Hub DElncRNAs associated with HCC patient prognosis were then detected through univariate and multivariate Cox regression analyses and were incorporated into a prognostic model. The prognostic value of this model was then assessed through the use of Kaplan-Meier curves, time-related ROC analyses, and nomograms. We also utilized Kaplan-Meier curves to validate the relationship between hub lncRNAs and the overall survival (OS) of HCC patients. Finally, A Hint1-related core ceRNA network based on the hub DElncRNAs and DEmRNAs was mapped. RESULTS We identified 417 differentially expressed DElncRNAs and 2096 DEmRNAs in Huh7 cells before and after Hint1 knockdown. Three hub DElncRNAs (LINC00324, SNHG3, and DIO3OS) in the Hint1-associated ceRNA network were screened out using univariate and multivariate Cox regression analyses. A hepatocellular carcinoma (HCC) prognostic risk-scoring model and nomogram were constructed using these three hub lncRNAs, and it was confirmed that the risk score of the model could be used as an independent predictor of HCC prognosis. A Hint1-related core ceRNA network based on the hub DElncRNAs and DEmRNAs was also mapped. CONCLUSION We constructed a reliable prognostic model for HCC patients based on three Hint1-related hub lncRNAs, and we believe these three hub lncRNAs may play critical roles in hepatocarcinogenesis, and progression.
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Affiliation(s)
- Cheng Zhang
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, No. 1168 Chunrongxi Road, Chenggong District, Kunming, Yunnan Province, China
- Department of Hepatobiliary Surgery, The Second People's Hospital of Chengdu, Chengdu, China
| | - Tianhao Bao
- Mental Health Center of Kunming Medical University, Kunming, China
| | - Yang Ke
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, No. 1168 Chunrongxi Road, Chenggong District, Kunming, Yunnan Province, China
| | - Xin Liu
- Department of Dermatology, The Second Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Xinghong Wang
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, No. 1168 Chunrongxi Road, Chenggong District, Kunming, Yunnan Province, China
| | - Weiran Liao
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, No. 1168 Chunrongxi Road, Chenggong District, Kunming, Yunnan Province, China
| | - Yutao He
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, No. 1168 Chunrongxi Road, Chenggong District, Kunming, Yunnan Province, China
| | - Lin Wang
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, No. 1168 Chunrongxi Road, Chenggong District, Kunming, Yunnan Province, China.
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