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Lee CY, Joshi M, Wang A, Myong S. 5'UTR G-quadruplex structure enhances translation in size dependent manner. Nat Commun 2024; 15:3963. [PMID: 38729943 PMCID: PMC11087576 DOI: 10.1038/s41467-024-48247-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 04/22/2024] [Indexed: 05/12/2024] Open
Abstract
Translation initiation in bacteria is frequently regulated by various structures in the 5' untranslated region (5'UTR). Previously, we demonstrated that G-quadruplex (G4) formation in non-template DNA enhances transcription. In this study, we aim to explore how G4 formation in mRNA (RG4) at 5'UTR impacts translation using a T7-based in vitro translation system and in E. coli. We show that RG4 strongly promotes translation efficiency in a size-dependent manner. Additionally, inserting a hairpin upstream of the RG4 further enhances translation efficiency, reaching up to a 12-fold increase. We find that the RG4-dependent effect is not due to increased ribosome affinity, ribosome binding site accessibility, or mRNA stability. We propose a physical barrier model in which bulky structures in 5'UTR biases ribosome movement toward the downstream start codon, thereby increasing the translation output. This study provides biophysical insights into the regulatory role of 5'UTR structures in in vitro and bacterial translation, highlighting their potential applications in tuning gene expression.
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Affiliation(s)
- Chun-Ying Lee
- Department of Biophysics, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Meera Joshi
- Department of Biophysics, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Ashley Wang
- Department of Biophysics, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Sua Myong
- Department of Biophysics, Johns Hopkins University, Baltimore, MD, 21218, USA.
- Physics Frontier Center (Center for Physics of Living Cells), University of Illinois, Urbana, IL, 61801, USA.
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2
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Benitez MBM, Navarro YP, Azuara-Liceaga E, Cruz AT, Flores JV, Lopez-Canovas L. Circular RNAs and the regulation of gene expression in diabetic nephropathy (Review). Int J Mol Med 2024; 53:44. [PMID: 38516776 PMCID: PMC10998718 DOI: 10.3892/ijmm.2024.5368] [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: 10/06/2023] [Accepted: 02/14/2024] [Indexed: 03/23/2024] Open
Abstract
Circular RNAs (circRNAs) are non‑coding single‑stranded covalently closed RNA molecules that are considered important as regulators of gene expression at the transcriptional and post‑transcriptional levels. These molecules have been implicated in the initiation and progression of multiple human diseases, ranging from cancer to inflammatory and metabolic diseases, including diabetes mellitus and its vascular complications. The present article aimed to review the current knowledge on the biogenesis and functions of circRNAs, as well as their role in cell processes associated with diabetic nephropathy. In addition, novel potential interactions between circRNAs expressed in renal cells exposed to high‑glucose concentrations and the transcription factors c‑Jun and c‑Fos are reported.
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Affiliation(s)
- Maximo Berto Martinez Benitez
- Postgraduate Program in Genomic Sciences, Science and Technology School, Autonomous University of Mexico City, Mexico City, CP 03100, Mexico
| | - Yussel Pérez Navarro
- Postgraduate Program in Genomic Sciences, Science and Technology School, Autonomous University of Mexico City, Mexico City, CP 03100, Mexico
| | - Elisa Azuara-Liceaga
- Postgraduate Program in Genomic Sciences, Science and Technology School, Autonomous University of Mexico City, Mexico City, CP 03100, Mexico
| | - Angeles Tecalco Cruz
- Postgraduate Program in Genomic Sciences, Science and Technology School, Autonomous University of Mexico City, Mexico City, CP 03100, Mexico
| | - Jesús Valdés Flores
- Biochemistry Department, Center for Research and Advanced Studies, National Polytechnic Institute of Mexico, Mexico City, CP 07360, Mexico
| | - Lilia Lopez-Canovas
- Postgraduate Program in Genomic Sciences, Science and Technology School, Autonomous University of Mexico City, Mexico City, CP 03100, Mexico
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3
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Qu H, Wang Y, Yan Q, Fan C, Zhang X, Wang D, Guo C, Chen P, Shi L, Liao Q, Zhou M, Wang F, Zeng Z, Xiang B, Xiong W. CircCDYL2 bolsters radiotherapy resistance in nasopharyngeal carcinoma by promoting RAD51 translation initiation for enhanced homologous recombination repair. J Exp Clin Cancer Res 2024; 43:122. [PMID: 38654320 PMCID: PMC11036759 DOI: 10.1186/s13046-024-03049-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/17/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Radiation therapy stands to be one of the primary approaches in the clinical treatment of malignant tumors. Nasopharyngeal Carcinoma, a malignancy predominantly treated with radiation therapy, provides an invaluable model for investigating the mechanisms underlying radiation therapy resistance in cancer. While some reports have suggested the involvement of circRNAs in modulating resistance to radiation therapy, the underpinning mechanisms remain unclear. METHODS RT-qPCR and in situ hybridization were used to detect the expression level of circCDYL2 in nasopharyngeal carcinoma tissue samples. The effect of circCDYL2 on radiotherapy resistance in nasopharyngeal carcinoma was demonstrated by in vitro and in vivo functional experiments. The HR-GFP reporter assay determined that circCDYL2 affected homologous recombination repair. RNA pull down, RIP, western blotting, IF, and polysome profiling assays were used to verify that circCDYL2 promoted the translation of RAD51 by binding to EIF3D protein. RESULTS We have identified circCDYL2 as highly expressed in nasopharyngeal carcinoma tissues, and it was closely associated with poor prognosis. In vitro and in vivo experiments demonstrate that circCDYL2 plays a pivotal role in promoting radiotherapy resistance in nasopharyngeal carcinoma. Our investigation unveils a specific mechanism by which circCDYL2, acting as a scaffold molecule, recruits eukaryotic translation initiation factor 3 subunit D protein (EIF3D) to the 5'-UTR of RAD51 mRNA, a crucial component of the DNA damage repair pathway to facilitate the initiation of RAD51 translation and enhance homologous recombination repair capability, and ultimately leads to radiotherapy resistance in nasopharyngeal carcinoma. CONCLUSIONS These findings establish a novel role of the circCDYL2/EIF3D/RAD51 axis in nasopharyngeal carcinoma radiotherapy resistance. Our work not only sheds light on the underlying molecular mechanism but also highlights the potential of circCDYL2 as a therapeutic sensitization target and a promising prognostic molecular marker for nasopharyngeal carcinoma.
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Affiliation(s)
- Hongke Qu
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410078, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, China
| | - Yumin Wang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.
| | - Qijia Yan
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China
| | - Chunmei Fan
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, China
| | - Xiangyan Zhang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, China
| | - Dan Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, China
| | - Can Guo
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, China
| | - Pan Chen
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410078, China
| | - Lei Shi
- Department of Pathology, the Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Qianjin Liao
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410078, China
| | - Ming Zhou
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, China
| | - Fuyan Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410078, China
| | - Bo Xiang
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410078, China.
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, China.
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410078, China.
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, Hunan, 410078, China.
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4
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Coleman DJ, Keane P, Chin PS, Ames L, Kellaway S, Blair H, Khan N, Griffin J, Holmes E, Maytum A, Potluri S, Strate L, Koscielniak K, Raghavan M, Bushweller J, Heidenreich O, Rabbitts T, Cockerill PN, Bonifer C. Pharmacological inhibition of RAS overcomes FLT3 inhibitor resistance in FLT3-ITD+ AML through AP-1 and RUNX1. iScience 2024; 27:109576. [PMID: 38638836 PMCID: PMC11024925 DOI: 10.1016/j.isci.2024.109576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/16/2024] [Accepted: 03/25/2024] [Indexed: 04/20/2024] Open
Abstract
AML is characterized by mutations in genes associated with growth regulation such as internal tandem duplications (ITD) in the receptor kinase FLT3. Inhibitors targeting FLT3 (FLT3i) are being used to treat patients with FLT3-ITD+ but most relapse and become resistant. To elucidate the resistance mechanism, we compared the gene regulatory networks (GRNs) of leukemic cells from patients before and after relapse, which revealed that the GRNs of drug-responsive patients were altered by rewiring their AP-1-RUNX1 axis. Moreover, FLT3i induces the upregulation of signaling genes, and we show that multiple cytokines, including interleukin-3 (IL-3), can overcome FLT3 inhibition and send cells back into cycle. FLT3i leads to loss of AP-1 and RUNX1 chromatin binding, which is counteracted by IL-3. However, cytokine-mediated drug resistance can be overcome by a pan-RAS inhibitor. We show that cytokines instruct AML growth via the transcriptional regulators AP-1 and RUNX1 and that pan-RAS drugs bypass this barrier.
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Affiliation(s)
- Daniel J.L. Coleman
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Peter Keane
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Paulynn S. Chin
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Luke Ames
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Sophie Kellaway
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Helen Blair
- Wolfson Childhood Cancer Research Centre, University of Newcastle, Newcastle upon Tyne, UK
| | - Naeem Khan
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - James Griffin
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Elizabeth Holmes
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Alexander Maytum
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Sandeep Potluri
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Lara Strate
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Kinga Koscielniak
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Manoj Raghavan
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - John Bushweller
- School of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Olaf Heidenreich
- Wolfson Childhood Cancer Research Centre, University of Newcastle, Newcastle upon Tyne, UK
- Princess Máxima Centrum of Pediatric Oncology, Utrecht, the Netherlands
| | - Terry Rabbitts
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, UK
| | - Peter N. Cockerill
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Constanze Bonifer
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
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5
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Izadi M, Ali TA, Shurrab FM, Aharpour E, Pourkarimi E. Tryptophanyl-tRNA synthetase-1 (WARS-1) depletion and high tryptophan concentration lead to genomic instability in Caenorhabditis elegans. Cell Death Discov 2024; 10:165. [PMID: 38575580 PMCID: PMC10995160 DOI: 10.1038/s41420-024-01917-4] [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: 10/21/2023] [Revised: 03/12/2024] [Accepted: 03/14/2024] [Indexed: 04/06/2024] Open
Abstract
The fidelity of translation is ensured by a family of proteins named aminoacyl-tRNA synthetases (ARSs), making them crucial for development and survival. More recently, mutations in the tryptophanyl-tRNA synthetase 1 (WARS1) have been linked to various human diseases, from intellectual disability to various types of cancer. To understand the function of WARS1, we investigated the effect of WARS-1 depletion during the mitotic and meiotic cell cycle in the developing germline of Caenorhabditis elegans (C. elegans) and demonstrated the role of WARS-1 in genome integrity. wars-1 knockdown results in cell cycle arrest of the mitotically active germ cells. Such mitotic arrest is also associated with canonical DNA damage-induced checkpoint signaling in mitotic and meiotic germ cells. Significantly, such DNA checkpoint activation is associated with the morphological anomalies in chromatin structures that are the hallmarks of genome instability, such as the formation of chromatin bridges, micronuclei, and chromatin buds. We demonstrated that knocking down wars-1 results in an elevation of the intracellular concentration of tryptophan and its catabolites, a surprising finding emphasizing the impact of cellular amino acid availability and organismal/individual dietary uptake on genome integrity. Our result demonstrates that exposing C. elegans to a high tryptophan dosage leads to DNA damage checkpoint activation and a significant increase in the tryptophan metabolites. Targeting tryptophan catabolism, the least utilized amino acid in nature, can be important in developing new cancer therapeutic approaches. All in all, we have strong evidence that knocking down wars-1 results in defects in genomic integrity.
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Affiliation(s)
- Mahmoud Izadi
- Division of Genomics and Translational Medicine, College of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha, 34110, Qatar
| | - Tayyiba Akbar Ali
- Division of Genomics and Translational Medicine, College of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha, 34110, Qatar
| | - Farah M Shurrab
- Division of Genomics and Translational Medicine, College of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha, 34110, Qatar
| | | | - Ehsan Pourkarimi
- Division of Genomics and Translational Medicine, College of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha, 34110, Qatar.
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6
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Song P, Han R, Yang F. Super enhancer lncRNAs: a novel hallmark in cancer. Cell Commun Signal 2024; 22:207. [PMID: 38566153 PMCID: PMC10986047 DOI: 10.1186/s12964-024-01599-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024] Open
Abstract
Super enhancers (SEs) consist of clusters of enhancers, harboring an unusually high density of transcription factors, mediator coactivators and epigenetic modifications. SEs play a crucial role in the maintenance of cancer cell identity and promoting oncogenic transcription. Super enhancer lncRNAs (SE-lncRNAs) refer to either transcript from SEs locus or interact with SEs, whose transcriptional activity is highly dependent on SEs. Moreover, these SE-lncRNAs can interact with their associated enhancer regions in cis and modulate the expression of oncogenes or key signal pathways in cancers. Inhibition of SEs would be a promising therapy for cancer. In this review, we summarize the research of SE-lncRNAs in different kinds of cancers so far and decode the mechanism of SE-lncRNAs in carcinogenesis to provide novel ideas for the cancer therapy.
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Affiliation(s)
- Ping Song
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Westlake University, Hangzhou, 310006, Zhejiang Province, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou, 310006, China
- Hangzhou Institute of Digestive Diseases, Hangzhou, 310006, China
| | - Rongyan Han
- Department of emergency, Affiliated Hangzhou First People's Hospital, Westlake University, Hangzhou, 310006, Zhejiang Province, China
| | - Fan Yang
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, 310006, Zhejiang Province, China.
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7
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Du CM, Leu WJ, Jiang YH, Chan SH, Chen IS, Chang HS, Hsu LC, Hsu JL, Guh JH. Cardenolide glycosides sensitize gefitinib-induced apoptosis in non-small cell lung cancer: inhibition of Na +/K +-ATPase serving as a switch-on mechanism. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03031-9. [PMID: 38451282 DOI: 10.1007/s00210-024-03031-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 02/28/2024] [Indexed: 03/08/2024]
Abstract
The treatment of non-small cell lung cancer (NSCLC) is known as a significant level of unmet medical need in spite of the progress in targeted therapy and personalized therapy. Overexpression of the Na+/K+-ATPase contributes to NSCLC progression, suggesting its potentiality in antineoplastic approaches. Epi-reevesioside F, purified from Reevesia formosana, showed potent anti-NSCLC activity through inhibiting the Na+/K+-ATPase, leading to internalization of α1- and α3-subunits in Na+/K+-ATPase and suppression of Akt-independent mTOR-p70S6K-4EBP1 axis. Epi-reevesioside F caused a synergistic amplification of apoptosis induced by gefitinib but not cisplatin, docetaxel, etoposide, paclitaxel, or vinorelbine in both NCI-H460 and A549 cells. The synergism was validated by enhanced activation of the caspase cascade. Bax cleavage, tBid formation, and downregulation of Bcl-xL and Bcl-2 contributed to the synergistic apoptosis induced by the combination treatment of epi-reevesioside F and gefitinib. The increase of membrane DR4 and DR5 levels, intracellular Ca2+ concentrations, and active m-calpain expression were responsible for the caspase-8 activation and Bax cleavage. The increased α-tubulin acetylation and activation of MAPK (i.e., p38 MAPK, Erk, and JNK) depending on cell types contributed to the synergistic mechanism under combination treatment. These signaling pathways that converged on profound c-Myc downregulation led to synergistic apoptosis in NSCLC. In conclusion, the data suggest that epi-reevesioside F inhibits the Na+/K+-ATPase and displays potent anti-NSCLC activity. Epi-reevesioside F sensitizes gefitinib-induced apoptosis through multiple pathways that converge on c-Myc downregulation. The data support the inhibition of Na+/K+-ATPase as a switch-on mechanism to sensitize gefitinib-induced anti-NSCLC activity.
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Affiliation(s)
- Chi-Min Du
- School of Pharmacy, National Taiwan University, No. 33, Linsen S. Rd., Zhongzheng Dist, Taipei, 100, Taiwan
| | - Wohn-Jenn Leu
- School of Pharmacy, National Taiwan University, No. 33, Linsen S. Rd., Zhongzheng Dist, Taipei, 100, Taiwan
| | - Yi-Huei Jiang
- School of Pharmacy, National Taiwan University, No. 33, Linsen S. Rd., Zhongzheng Dist, Taipei, 100, Taiwan
| | - She-Hung Chan
- Department of Cosmetic Science, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist, Taichung, 43301, Taiwan
| | - Ih-Sheng Chen
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Taiwan, Kaohsiung, Taiwan
| | - Hsun-Shuo Chang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Taiwan, Kaohsiung, Taiwan
| | - Lih-Ching Hsu
- School of Pharmacy, National Taiwan University, No. 33, Linsen S. Rd., Zhongzheng Dist, Taipei, 100, Taiwan
| | - Jui-Ling Hsu
- School of Pharmacy, National Taiwan University, No. 33, Linsen S. Rd., Zhongzheng Dist, Taipei, 100, Taiwan.
- Department of Nursing, Division of Basic Medical Sciences, Chang-Gung University of Science and Technology, Taoyuan, 333, Taiwan.
- Department of Medical Oncology, New Taipei Municipal TuCheng Hospital, New Taipei City, 236, Taiwan.
| | - Jih-Hwa Guh
- School of Pharmacy, National Taiwan University, No. 33, Linsen S. Rd., Zhongzheng Dist, Taipei, 100, Taiwan.
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8
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Sobański D, Bogdał P, Staszkiewicz R, Sobańska M, Filipowicz M, Czepko RA, Strojny D, Grabarek BO. Evaluation of differences in expression pattern of three isoforms of the transforming growth factor beta in patients with lumbosacral stenosis. Cell Cycle 2024; 23:555-572. [PMID: 38695374 PMCID: PMC11135850 DOI: 10.1080/15384101.2024.2345484] [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: 01/30/2024] [Accepted: 03/30/2024] [Indexed: 05/28/2024] Open
Abstract
The study investigates molecular changes in the lumbosacral (L/S) spine's yellow ligamentum flavum during degenerative stenosis, focusing on the role of transforming growth factor beta 1-3 (TGF-β-1-3). Sixty patients with degenerative stenosis and sixty control participants underwent molecular analysis using real-time quantitative reverse transcription reaction technique (RTqPCR), enzyme-linked immunosorbent assay (ELISA), Western blot, and immunohistochemical analysis (IHC). At the mRNA level, study samples showed reduced expression of TGF-β-1 and TGF-β-3, while TGF-β-2 increased by only 4%. Conversely, at the protein level, the study group exhibited significantly higher concentrations of TGF-β-1, TGF-β-2, and TGF-β-3 compared to controls. On the other hand, at the protein level, a statistically significant higher concentration of TGF-β-1 was observed (2139.33 pg/mL ± 2593.72 pg/mL vs. 252.45 pg/mL ± 83.89 pg/mL; p < 0.0001), TGF-β-2 (3104.34 pg/mL ± 1192.74 pg/mL vs. 258.86 pg/mL ± 82.98 pg/mL; p < 0.0001), TGF-β-3 (512.75 pg/mL ± 107.36 pg/mL vs. 55.06 pg/mL ± 9.83 pg/mL, p < 0.0001) in yellow ligaments obtained from patients of the study group compared to control samples. The study did not establish a significant correlation between TGF-β-1-3 concentrations and pain severity. The findings suggest that molecular therapy aimed at restoring the normal expression pattern of TGF-β-1-3 could be a promising strategy for treating degenerative stenosis of the L/S spine. The study underscores the potential therapeutic significance of addressing molecular changes at the TGF-β isoforms level for better understanding and managing degenerative spinal conditions.
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Affiliation(s)
- Dawid Sobański
- Department of Neurosurgery, Szpital sw. Rafala in Cracow, Cracow, Poland
- Collegium Medicum, WSB University, Dabrowa Gornicza, Poland
| | - Paweł Bogdał
- Department of Orthopedic, Szpital Powiatowy w Zawierciu, Zawiercie, Poland
| | - Rafał Staszkiewicz
- Collegium Medicum, WSB University, Dabrowa Gornicza, Poland
- Department of Neurosurgery, 5th Military Clinical Hospital with the SP ZOZ Polyclinic in Krakow, Krakow, Poland
- Department of Neurosurgery, Faculty of Medicine in Zabrze, Academy of Silesia, Katowice, Poland
| | | | - Michał Filipowicz
- Department of Neurosurgery, Szpital sw. Rafala in Cracow, Cracow, Poland
| | - Ryszard Adam Czepko
- Department of Neurosurgery, Szpital sw. Rafala in Cracow, Cracow, Poland
- Department of Neurosurgery, Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski University in Cracow, Cracow, Poland
| | - Damian Strojny
- Collegium Medicum, WSB University, Dabrowa Gornicza, Poland
- Institute of Health Care, National Academy of Applied Sciences in Przemyśl, Przemyśl, Poland
- Department of Medical Science, New Medical Techniques Specialist Hospital of St. Family in Rudna Mała, Rzeszów, Poland
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9
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Hu Y, Kong F, Guo H, Hua Y, Zhu Y, Zhang C, Qadeer A, Xiao Y, Cai Q, Ji S. Drosophila eIF3f1 mediates host immune defense by targeting dTak1. EMBO Rep 2024; 25:1415-1435. [PMID: 38279019 PMCID: PMC10933477 DOI: 10.1038/s44319-024-00067-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/28/2024] Open
Abstract
Eukaryotic translation initiation factors have long been recognized for their critical roles in governing the translation of coding RNAs into peptides/proteins. However, whether they harbor functional activities at the post-translational level remains poorly understood. Here, we demonstrate that eIF3f1 (eukaryotic translation initiation factor 3 subunit f1), which encodes an archetypal deubiquitinase, is essential for the antimicrobial innate immune defense of Drosophila melanogaster. Our in vitro and in vivo evidence indicate that the immunological function of eIF3f1 is dependent on the N-terminal JAMM (JAB1/MPN/Mov34 metalloenzymes) domain. Mechanistically, eIF3f1 physically associates with dTak1 (Drosophila TGF-beta activating kinase 1), a key regulator of the IMD (immune deficiency) signaling pathway, and mediates the turnover of dTak1 by specifically restricting its K48-linked ubiquitination. Collectively, these results provide compelling insight into a noncanonical molecular function of a translation initiation factor that controls the post-translational modification of a target protein.
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Affiliation(s)
- Yixuan Hu
- Center for Developmental Biology, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
- Institutes of Brain Science, Wannan Medical College, 241002, Wuhu, Anhui, China
| | - Fanrui Kong
- Center for Developmental Biology, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Resource Insect Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Huimin Guo
- Center for Developmental Biology, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
- Center for Biological Technology, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Yongzhi Hua
- Center for Developmental Biology, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Yangyang Zhu
- Center for Developmental Biology, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Resource Insect Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Chuchu Zhang
- Center for Developmental Biology, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Resource Insect Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Abdul Qadeer
- Center for Developmental Biology, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Resource Insect Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Yihua Xiao
- Center for Developmental Biology, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Resource Insect Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Qingshuang Cai
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, 67400, France.
| | - Shanming Ji
- Center for Developmental Biology, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China.
- Anhui Province Key Laboratory of Resource Insect Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, 230036, Hefei, Anhui, China.
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10
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Zhang X, Mei C, Liang Z, Zhi Y, Xu H, Wang H, Dong H. Homoharringtonine induces apoptosis of mammary carcinoma cells by inhibiting the AKT/mTOR signaling pathway. Vet Comp Oncol 2024; 22:57-69. [PMID: 38081660 DOI: 10.1111/vco.12948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 01/11/2024]
Abstract
Mammary tumour is the most common type of tumour in dogs, especially in unneutered female dogs. Homoharringtonine (HHT) is a natural alkaloid that can be used to treat various types of human tumour. However, the inhibitory effect and mechanism of HHT on canine mammary carcinomas (CMC) remain unclear. This study aimed to evaluate the inhibitory effect of HHT on CMC in vitro and determine its underlying molecular mechanism. The effects of HHT on the cytotoxicity of CMC U27 cells were evaluated by the cell counting kit-8, wound healing, and Transwell assays. HHT-induced apoptosis of U27 cells was detected by JC-1 and terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL) assay. Moreover, the gene expression of B-cell lymphoma-2 (Bcl-2) and Bcl-2 associated X protein (Bax) were analysed using quantitative reverse transcription-polymerase chain reaction (RT-qPCR), and the protein expression of protein kinase B/mammalian target of rapamycin (AKT/mTOR) and mitochondrial apoptosis proteins were determined by western blotting. Furthermore, mammary tumour-bearing mouse models were established using 4T1 cells to evaluate the therapeutic effect of HHT. It was found that HHT could significantly down-regulated the protein expression of p-AKT, p-mTOR, and Bcl-2, and up-regulated the protein expression of P53, Bax, cleaved caspase-3, and cleaved caspase-9. In addition, HHT significantly suppressed both tumour volume and mass in mammary tumour mice. In conclusion, HHT damages CMC cells by inhibiting the AKT/mTOR signalling pathway and inducing mitochondrial apoptosis. Such findings lay a theoretical foundation for the clinical treatment of CMC and provide more options for clinical medication.
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Affiliation(s)
- Xue Zhang
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
- Beijing Traditional Chinese Veterinary Engineering Center, Beijing University of Agriculture, Beijing, China
| | - Chen Mei
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Zhixuan Liang
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
- Beijing Traditional Chinese Veterinary Engineering Center, Beijing University of Agriculture, Beijing, China
| | - Yan Zhi
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
- Beijing Traditional Chinese Veterinary Engineering Center, Beijing University of Agriculture, Beijing, China
| | - Haojun Xu
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Hongjun Wang
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Hong Dong
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
- Beijing Traditional Chinese Veterinary Engineering Center, Beijing University of Agriculture, Beijing, China
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11
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Añazco-Guenkova AM, Miguel-López B, Monteagudo-García Ó, García-Vílchez R, Blanco S. The impact of tRNA modifications on translation in cancer: identifying novel therapeutic avenues. NAR Cancer 2024; 6:zcae012. [PMID: 38476632 PMCID: PMC10928989 DOI: 10.1093/narcan/zcae012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/16/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Recent advancements have illuminated the critical role of RNA modifications in post-transcriptional regulation, shaping the landscape of gene expression. This review explores how tRNA modifications emerge as critical players, fine-tuning functionalities that not only maintain the fidelity of protein synthesis but also dictate gene expression and translation profiles. Highlighting their dysregulation as a common denominator in various cancers, we systematically investigate the intersection of both cytosolic and mitochondrial tRNA modifications with cancer biology. These modifications impact key processes such as cell proliferation, tumorigenesis, migration, metastasis, bioenergetics and the modulation of the tumor immune microenvironment. The recurrence of altered tRNA modification patterns across different cancer types underscores their significance in cancer development, proposing them as potential biomarkers and as actionable targets to disrupt tumorigenic processes, offering new avenues for precision medicine in the battle against cancer.
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Affiliation(s)
- Ana M Añazco-Guenkova
- Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC) - University of Salamanca, 37007 Salamanca, Spain
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, 37007 Salamanca, Spain
| | - Borja Miguel-López
- Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC) - University of Salamanca, 37007 Salamanca, Spain
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, 37007 Salamanca, Spain
| | - Óscar Monteagudo-García
- Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC) - University of Salamanca, 37007 Salamanca, Spain
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, 37007 Salamanca, Spain
| | - Raquel García-Vílchez
- Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC) - University of Salamanca, 37007 Salamanca, Spain
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, 37007 Salamanca, Spain
| | - Sandra Blanco
- Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC) - University of Salamanca, 37007 Salamanca, Spain
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, 37007 Salamanca, Spain
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12
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Esteva-Socias M, Aguilo F. METTL3 as a master regulator of translation in cancer: mechanisms and implications. NAR Cancer 2024; 6:zcae009. [PMID: 38444581 PMCID: PMC10914372 DOI: 10.1093/narcan/zcae009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/18/2024] [Accepted: 02/21/2024] [Indexed: 03/07/2024] Open
Abstract
Translational regulation is an important step in the control of gene expression. In cancer cells, the orchestration of both global control of protein synthesis and selective translation of specific mRNAs promote tumor cell survival, angiogenesis, transformation, invasion and metastasis. N6-methyladenosine (m6A), the most prevalent mRNA modification in higher eukaryotes, impacts protein translation. Over the past decade, the development of m6A mapping tools has facilitated comprehensive functional investigations, revealing the involvement of this chemical mark, together with its writer METTL3, in promoting the translation of both oncogenes and tumor suppressor transcripts, with the impact being context-dependent. This review aims to consolidate our current understanding of how m6A and METTL3 shape translation regulation in the realm of cancer biology. In addition, it delves into the role of cytoplasmic METTL3 in protein synthesis, operating independently of its catalytic activity. Ultimately, our goal is to provide critical insights into the interplay between m6A, METTL3 and translational regulation in cancer, offering a deeper comprehension of the mechanisms sustaining tumorigenesis.
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Affiliation(s)
- Margalida Esteva-Socias
- Department of Molecular Biology, Umeå University, SE-901 85Umeå, Sweden
- Wallenberg Centre for Molecular Medicine, Umeå University, SE-901 85Umeå, Sweden
| | - Francesca Aguilo
- Department of Molecular Biology, Umeå University, SE-901 85Umeå, Sweden
- Wallenberg Centre for Molecular Medicine, Umeå University, SE-901 85Umeå, Sweden
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13
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Tao Z, Zhang H, Wu S, Zhang J, Cheng Y, Lei L, Qin Y, Wei H, Yu CY. Spherical nucleic acids: emerging amplifiers for therapeutic nanoplatforms. NANOSCALE 2024; 16:4392-4406. [PMID: 38289178 DOI: 10.1039/d3nr05971e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
Gene therapy is a revolutionary treatment approach in the 21st century, offering significant potential for disease prevention and treatment. However, the efficacy of gene delivery is often compromised by the inherent challenges of gene properties and vector-related defects. It is crucial to explore ways to enhance the curative effect of gene drugs and achieve safer, more widespread, and more efficient utilization, which represents a significant challenge in amplification gene therapy advancements. Spherical nucleic acids (SNAs), with their unique physicochemical properties, are considered an innovative solution for scalable gene therapy. This review aims to comprehensively explore the amplifying contributions of SNAs in gene therapy and emphasize the contribution of SNAs to the amplification effect of gene therapy from the aspects of structure, application, and recent clinical translation - an aspect that has been rarely reported or explored thus far. We begin by elucidating the fundamental characteristics and scaling-up properties of SNAs that distinguish them from traditional linear nucleic acids, followed by an analysis of combined therapy treatment strategies, theranostics, and clinical translation amplified by SNAs. We conclude by discussing the challenges of SNAs and provide a prospect on the amplification characteristics. This review seeks to update the current understanding of the use of SNAs in gene therapy amplification and promote further research into their clinical translation and amplification of gene therapy.
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Affiliation(s)
- Zhenghao Tao
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, 421001, Hengyang, P. R. China.
| | - Haitao Zhang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, 421001, Hengyang, P. R. China.
| | - Shang Wu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, 421001, Hengyang, P. R. China.
| | - Jiaheng Zhang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, 421001, Hengyang, P. R. China.
| | - Yao Cheng
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, 421001, Hengyang, P. R. China.
| | - Longtianyang Lei
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, 421001, Hengyang, P. R. China.
| | - Yang Qin
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, 421001, Hengyang, P. R. China.
| | - Hua Wei
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, 421001, Hengyang, P. R. China.
| | - Cui-Yun Yu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmaceutical Science, Hengyang Medical School, University of South China, 421001, Hengyang, P. R. China.
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14
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Jia X, He X, Huang C, Li J, Dong Z, Liu K. Protein translation: biological processes and therapeutic strategies for human diseases. Signal Transduct Target Ther 2024; 9:44. [PMID: 38388452 PMCID: PMC10884018 DOI: 10.1038/s41392-024-01749-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 01/13/2024] [Accepted: 01/18/2024] [Indexed: 02/24/2024] Open
Abstract
Protein translation is a tightly regulated cellular process that is essential for gene expression and protein synthesis. The deregulation of this process is increasingly recognized as a critical factor in the pathogenesis of various human diseases. In this review, we discuss how deregulated translation can lead to aberrant protein synthesis, altered cellular functions, and disease progression. We explore the key mechanisms contributing to the deregulation of protein translation, including functional alterations in translation factors, tRNA, mRNA, and ribosome function. Deregulated translation leads to abnormal protein expression, disrupted cellular signaling, and perturbed cellular functions- all of which contribute to disease pathogenesis. The development of ribosome profiling techniques along with mass spectrometry-based proteomics, mRNA sequencing and single-cell approaches have opened new avenues for detecting diseases related to translation errors. Importantly, we highlight recent advances in therapies targeting translation-related disorders and their potential applications in neurodegenerative diseases, cancer, infectious diseases, and cardiovascular diseases. Moreover, the growing interest lies in targeted therapies aimed at restoring precise control over translation in diseased cells is discussed. In conclusion, this comprehensive review underscores the critical role of protein translation in disease and its potential as a therapeutic target. Advancements in understanding the molecular mechanisms of protein translation deregulation, coupled with the development of targeted therapies, offer promising avenues for improving disease outcomes in various human diseases. Additionally, it will unlock doors to the possibility of precision medicine by offering personalized therapies and a deeper understanding of the molecular underpinnings of diseases in the future.
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Affiliation(s)
- Xuechao Jia
- Department of Pathophysiology, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450000, China
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China
| | - Xinyu He
- Department of Pathophysiology, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450000, China
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China
| | - Chuntian Huang
- Department of Pathology and Pathophysiology, Henan University of Chinese Medicine, Zhengzhou, Henan, 450000, China
| | - Jian Li
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China
| | - Zigang Dong
- Department of Pathophysiology, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450000, China.
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China.
- Tianjian Laboratory of Advanced Biomedical Sciences, Zhengzhou, Henan, 450052, China.
- Research Center for Basic Medicine Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450052, Henan, China.
- Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou University, Zhengzhou, Henan, 450000, China.
| | - Kangdong Liu
- Department of Pathophysiology, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450000, China.
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450000, China.
- Tianjian Laboratory of Advanced Biomedical Sciences, Zhengzhou, Henan, 450052, China.
- Research Center for Basic Medicine Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450052, Henan, China.
- Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou University, Zhengzhou, Henan, 450000, China.
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Zhengzhou University, Zhengzhou, Henan, 450000, China.
- The Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450000, China.
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15
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Staszkiewicz R, Gładysz D, Sobański D, Bolechała F, Golec E, Dammermann W, Grabarek BO. The Impacts of Intervertebral Disc Degeneration of the Spine, Alcohol Consumption, Smoking Tobacco Products, and Glycemic Disorders on the Expression Profiles of Neurotrophins-3 and -4. Biomedicines 2024; 12:427. [PMID: 38398029 PMCID: PMC10886622 DOI: 10.3390/biomedicines12020427] [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: 01/14/2024] [Revised: 02/09/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
In the etiology of discogenic pain, attention is paid to the role of neurotrophic factors, which include classic neurotrophins (NTs). This study aimed to assess changes in the concentrations of NT-3 and NT-4 in the intervertebral discs (IVDs) of the lumbosacral (L/S) spine depending on the advancement of degenerative changes, pain severity, habits, and comorbidities. The study group included 113 patients who underwent microdiscectomy due to degenerative IVD disease of the L/S spine. The severity of degenerative IVD changes was assessed using the five-point Pfirrmann scale, and the pain intensity was assessed according to the visual analog scale (VAS). In turn, the control group included 81 participants from whom IVDs of the L/S section of the spine were collected post-mortem during forensic autopsy or organ donation. At the mRNA level, we noted NT-3 overexpression in the test samples compared with the controls (fold change (FC) = 9.12 ± 0.56; p < 0.05), while NT-4 transcriptional activity was decreased in the test samples compared with the controls (FC = 0.33 ± 0.07; p < 0.05). However, at the protein level, the concentrations of NT-3 (134 ± 5.78 pg/mL vs. 6.78 ± 1.17 pg/mL; p < 0.05) and NT-4 (316.77 ± 8.19 pg/mL vs. 76.92 ± 4.82 pg/mL; p < 0.05) were significantly higher in the test samples compared with the control samples. Nevertheless, the concentration of both proteins did not statistically significantly change depending on the advancement of degenerative changes and the pain intensity (p > 0.05). In addition, higher levels of NT-3 and NT-4 were noted in IVD samples from patients who consumed alcohol, smoked tobacco, were overweight/obese, or had comorbid diabetes compared with patients without these risk factors (p < 0.05). Our analysis confirmed that differences in the degenerative process of IVD, energy metabolism, and lifestyle are related to changes in the concentration profiles of NT-3 and NT-4.
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Affiliation(s)
- Rafał Staszkiewicz
- Collegium Medicum, WSB University, 41-300 Dabrowa Gornicza, Poland;
- Department of Neurosurgery, 5th Military Clinical Hospital, SP ZOZ Polyclinic in Cracow, 30-901 Cracow, Poland;
- Department of Neurosurgery, Faculty of Medicine in Zabrze, Academy of Silesia, 40-555 Katowice, Poland
| | - Dorian Gładysz
- Department of Neurosurgery, 5th Military Clinical Hospital, SP ZOZ Polyclinic in Cracow, 30-901 Cracow, Poland;
- Department of Neurosurgery, Faculty of Medicine in Zabrze, Academy of Silesia, 40-555 Katowice, Poland
| | - Dawid Sobański
- Collegium Medicum, WSB University, 41-300 Dabrowa Gornicza, Poland;
- Department of Neurosurgery, Szpital sw. Rafala in Cracow, 30-693 Cracow, Poland
- Department of Neurosurgery, Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski University in Cracow, 30-705 Cracow, Poland
| | - Filip Bolechała
- Department of Forensic Medicine, Jagiellonian University Medical College, 31-531 Cracow, Poland;
| | - Edward Golec
- Department of Rehabilitation in Orthopaedics, Faculty of Motor Rehabilitation, Bronisław Czech University of Physical Education, 31-571 Cracow, Poland;
| | - Werner Dammermann
- Center of Internal Medicine II, University Hospital Brandenburg, 03048 Brandenburg, Germany;
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, 16816 Neuruppin, Germany
| | - Beniamin Oskar Grabarek
- Collegium Medicum, WSB University, 41-300 Dabrowa Gornicza, Poland;
- Gyncentrum, Laboratory of Molecular Biology and Virology, Department of Molecular Biology, 40-851 Katowice, Poland
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16
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Zhang D, Gao Y, Zhu L, Wang Y, Li P. Advances and opportunities in methods to study protein translation - A review. Int J Biol Macromol 2024; 259:129150. [PMID: 38171441 DOI: 10.1016/j.ijbiomac.2023.129150] [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: 08/02/2023] [Revised: 12/27/2023] [Accepted: 12/28/2023] [Indexed: 01/05/2024]
Abstract
It is generally believed that the regulation of gene expression involves protein translation occurring before RNA transcription. Therefore, it is crucial to investigate protein translation and its regulation. Recent advancements in biological sciences, particularly in the field of omics, have revolutionized protein translation research. These studies not only help characterize changes in protein translation during specific biological or pathological processes but also have significant implications in disease prevention and treatment. In this review, we summarize the latest methods in ribosome-based translation omics. We specifically focus on the application of fluorescence imaging technology and omics technology in studying overall protein translation. Additionally, we analyze the advantages, disadvantages, and application of these experimental methods, aiming to provide valuable insights and references to researchers studying translation.
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Affiliation(s)
- Dejiu Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Yanyan Gao
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Lei Zhu
- College of Basic Medical, Qingdao Binhai University, Qingdao, China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China.
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China.
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17
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Emanuelsson EB, Arif M, Reitzner SM, Perez S, Lindholm ME, Mardinoglu A, Daub C, Sundberg CJ, Chapman MA. Remodeling of the human skeletal muscle proteome found after long-term endurance training but not after strength training. iScience 2024; 27:108638. [PMID: 38213622 PMCID: PMC10783619 DOI: 10.1016/j.isci.2023.108638] [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: 08/30/2023] [Revised: 11/09/2023] [Accepted: 12/01/2023] [Indexed: 01/13/2024] Open
Abstract
Exercise training has tremendous systemic tissue-specific health benefits, but the molecular adaptations to long-term exercise training are not completely understood. We investigated the skeletal muscle proteome of highly endurance-trained, strength-trained, and untrained individuals and performed exercise- and sex-specific analyses. Of the 6,000+ proteins identified, >650 were differentially expressed in endurance-trained individuals compared with controls. Strikingly, 92% of the shared proteins with higher expression in both the male and female endurance groups were known mitochondrial. In contrast to the findings in endurance-trained individuals, minimal differences were found in strength-trained individuals and between females and males. Lastly, a co-expression network and comparative literature analysis revealed key proteins and pathways related to the health benefits of exercise, which were primarily related to differences in mitochondrial proteins. This network is available as an interactive database resource where investigators can correlate clinical data with global gene and protein expression data for hypothesis generation.
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Affiliation(s)
- Eric B. Emanuelsson
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Muhammad Arif
- Science for Life Laboratory, KTH – Royal Institute of Technology, 171 77 Stockholm, Sweden
| | - Stefan M. Reitzner
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Sean Perez
- Department of Biology, Pomona College, Claremont, CA 91711, USA
| | - Maléne E. Lindholm
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Adil Mardinoglu
- Science for Life Laboratory, KTH – Royal Institute of Technology, 171 77 Stockholm, Sweden
- Centre for Host–Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London, London WC2R 2LS, UK
| | - Carsten Daub
- Department of Biosciences and Nutrition, Karolinska Institutet, 171 77 Stockholm, Sweden
- Science for Life Laboratory, 171 65 Solna, Sweden
| | - Carl Johan Sundberg
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Laboratory Medicine, Karolinska Institutet, 141 52 Huddinge, Sweden
- Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Mark A. Chapman
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Integrated Engineering, University of San Diego, San Diego, CA 92110, USA
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18
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Li Y, Wu Y, Qin X, Gu J, Liu A, Cao J. Constructing a competitive endogenous RNA network of EndMT-related atherosclerosis through weighted gene co-expression network analysis. Front Cardiovasc Med 2024; 10:1322252. [PMID: 38268851 PMCID: PMC10806165 DOI: 10.3389/fcvm.2023.1322252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 12/27/2023] [Indexed: 01/26/2024] Open
Abstract
Atherosclerosis is a chronic inflammatory disease characterized by endothelial dysfunction and plaque formation. Under pro-inflammatory conditions, endothelial cells can undergo endothelial-to-mesenchymal transition (EndMT), contributing to atherosclerosis development. However, the specific regulatory mechanisms by which EndMT contributes to atherosclerosis remain unclear and require further investigation. Dan-Shen-Yin (DSY), a traditional Chinese herbal formula, is commonly used for cardiovascular diseases, but its molecular mechanisms remain elusive. Emerging evidence indicates that competing endogenous RNA (ceRNA) networks play critical roles in atherosclerosis pathogenesis. In this study, we constructed an EndMT-associated ceRNA network during atherosclerosis progression by integrating gene expression profiles from the Gene Expression Omnibus (GEO) database and weighted gene co-expression network analysis. Functional enrichment analysis revealed this EndMT-related ceRNA network is predominantly involved in inflammatory responses. ROC curve analysis showed the identified hub genes can effectively distinguish between normal vasculature and atherosclerotic lesions. Furthermore, Kaplan-Meier analysis demonstrated that high expression of IL1B significantly predicts ischemic events in atherosclerosis. Molecular docking revealed most DSY bioactive components can bind key EndMT-related lncRNAs, including AC003092.1, MIR181A1HG, MIR155HG, WEE2-AS1, and MIR137HG, suggesting DSY may mitigate EndMT in atherosclerosis by modulating the ceRNA network.
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Affiliation(s)
- Yawei Li
- Research Center of Basic Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yubiao Wu
- Research Center of Basic Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiude Qin
- Encephalopathy Department, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Jinchao Gu
- Research Center of Basic Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Aijun Liu
- Research Center of Basic Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiahui Cao
- Research Center of Basic Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
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19
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Jaiswal AK, Thaxton ML, Scherer GM, Sorrentino JP, Garg NK, Rao DS. Small molecule inhibition of RNA binding proteins in haematologic cancer. RNA Biol 2024; 21:1-14. [PMID: 38329136 PMCID: PMC10857685 DOI: 10.1080/15476286.2024.2303558] [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] [Accepted: 01/05/2024] [Indexed: 02/09/2024] Open
Abstract
In recent years, advances in biomedicine have revealed an important role for post-transcriptional mechanisms of gene expression regulation in pathologic conditions. In cancer in general and leukaemia specifically, RNA binding proteins have emerged as important regulator of RNA homoeostasis that are often dysregulated in the disease state. Having established the importance of these pathogenetic mechanisms, there have been a number of efforts to target RNA binding proteins using oligonucleotide-based strategies, as well as with small organic molecules. The field is at an exciting inflection point with the convergence of biomedical knowledge, small molecule screening strategies and improved chemical methods for synthesis and construction of sophisticated small molecules. Here, we review the mechanisms of post-transcriptional gene regulation, specifically in leukaemia, current small-molecule based efforts to target RNA binding proteins, and future prospects.
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Affiliation(s)
- Amit K. Jaiswal
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA, USA
| | - Michelle L. Thaxton
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA, USA
| | - Georgia M. Scherer
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Jacob P. Sorrentino
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Neil K. Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Dinesh S. Rao
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA, USA
- Jonsson Comprehensive Cancer Center, University of California Los Angeles, CA, USA
- Broad Stem Cell Research Center, University of California, Los Angeles, CA, USA
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20
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Wang X, Xu J, Li Q, Zhang Y, Lin Z, Zhai X, Wang F, Huang J, Gao Q, Wen J, Li L, Feng Y, Luo H, Li Q, Liu X, Li J, Zhao F, Zhang L, Niu T, Sun C, Zheng Y. RNA-binding protein hnRNPU regulates multiple myeloma resistance to selinexor. Cancer Lett 2024; 580:216486. [PMID: 37984724 DOI: 10.1016/j.canlet.2023.216486] [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: 09/01/2023] [Revised: 10/22/2023] [Accepted: 11/04/2023] [Indexed: 11/22/2023]
Abstract
Multiple myeloma (MM) is an incurable haematological cancer. Selinexor is the first-in-class selective inhibitor of nuclear export (SINE) and was newly approved for the treatment of MM. Until now, very few studies have investigated selinexor resistance in MM. Heterogeneous nuclear ribonucleoprotein U (hnRNPU) is an RNA-binding protein and a component of hnRNP complexes. Here we found that hnRNPU regulates MM sensitivity to selinexor. Cell apoptosis assays were performed to compare selinexor-induced cell death in control knockdown (CTR-KD) and hnRNPU knockdown (hnR-KD) MM cells. HnRNPU knockdown-induced nuclear protein retention was examined by proteomics array. HnRNPU-conferred mRNA translation regulation was evaluated by sucrose gradient assay, RNA electrophoresis mobility shift assay, and RNA pull-down assay. We found that hnR-KD MM cells were more sensitive to selinexor-induced cell death in vitro and in mouse model. MM patients who responded to selinexor had relatively low hnRNPU expression. In brief, hnRNPU comprehensively regulated MM sensitivity to selinexor by affecting the localization of LTV1 and NMD3, and mRNA translation of MDM2 and RAN, which were involved in XPO1-mediated nuclear export of ribosome subunits and tumor suppressors. Our discoveries indicate that hnRNPU might be a possible marker to categorize MM patients for the use of Selinexor.
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Affiliation(s)
- Xin Wang
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Juan Xu
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Qun Li
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology China, China
| | - Yue Zhang
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Zhimei Lin
- Department of Hematology, West China Hospital, Sichuan University, China; Department of Hematology, The Affiliated Hospital of Chengdu University, China
| | - Xinyu Zhai
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Fangfang Wang
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Jingcao Huang
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Qianwen Gao
- Department of Hematology, West China Hospital, Sichuan University, China; School of Life Science, Sichuan University, China
| | - Jingjing Wen
- Department of Hematology, West China Hospital, Sichuan University, China; Department of Hematology, Mian-yang Central Hospital, China
| | - Linfeng Li
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Yu Feng
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Hongmei Luo
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Qian Li
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Xiang Liu
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Junying Li
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology China, China
| | - Fei Zhao
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology China, China
| | - Li Zhang
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Ting Niu
- Department of Hematology, West China Hospital, Sichuan University, China
| | - Chunyan Sun
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology China, China.
| | - Yuhuan Zheng
- Department of Hematology, West China Hospital, Sichuan University, China.
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21
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Fard SS, Holz MK. Regulation of mRNA translation by estrogen receptor in breast cancer. Steroids 2023; 200:109316. [PMID: 37806603 PMCID: PMC10841406 DOI: 10.1016/j.steroids.2023.109316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/15/2023] [Accepted: 09/28/2023] [Indexed: 10/10/2023]
Abstract
Breast cancer is one of the leading causes of cancer-related fatalities and the most often diagnosed malignancy in women globally. Dysregulation of sex hormone signaling pathways mediated by the estrogen receptor (ER) in breast cancer is well characterized. Although ER is known to promote cell growth and survival by altering gene transcription, recent research suggests that its effects in cancers are also mediated through dysregulation of protein synthesis. This implies that ER can coordinately affect gene expression through both translational and transcriptional pathways, leading to the development of malignancy. In this review, we will cover the current understanding of how the ER controls mRNA translation in breast cancer and discuss any potential clinical implications of this phenomenon.
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Affiliation(s)
- Shahrzad S Fard
- Department of Cell Biology and Anatomy, Graduate School of Biomedical Sciences, New York Medical College, Valhalla, NY, USA
| | - Marina K Holz
- Department of Cell Biology and Anatomy, Graduate School of Biomedical Sciences, New York Medical College, Valhalla, NY, USA; Department of Biochemistry and Molecular Biology, Graduate School of Biomedical Sciences, New York Medical College, Valhalla, NY, USA.
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22
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Sherwood DR, Kenny-Ganzert IW, Balachandar Thendral S. Translational regulation of cell invasion through extracellular matrix-an emerging role for ribosomes. F1000Res 2023; 12:1528. [PMID: 38628976 PMCID: PMC11019292 DOI: 10.12688/f1000research.143519.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/22/2023] [Indexed: 04/19/2024] Open
Abstract
Many developmental and physiological processes require cells to invade and migrate through extracellular matrix barriers. This specialized cellular behavior is also misregulated in many diseases, such as immune disorders and cancer. Cell invasive activity is driven by pro-invasive transcriptional networks that activate the expression of genes encoding numerous different proteins that expand and regulate the cytoskeleton, endomembrane system, cell adhesion, signaling pathways, and metabolic networks. While detailed mechanistic studies have uncovered crucial insights into pro-invasive transcriptional networks and the distinct cell biological attributes of invasive cells, less is known about how invasive cells modulate mRNA translation to meet the robust, dynamic, and unique protein production needs of cell invasion. In this review we outline known modes of translation regulation promoting cell invasion and focus on recent studies revealing elegant mechanisms that expand ribosome biogenesis within invasive cells to meet the increased protein production requirements to invade and migrate through extracellular matrix barriers.
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23
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Leblanc R, Ghossoub R, Goubard A, Castellano R, Fares J, Camoin L, Audebert S, Balzano M, Bou‐Tayeh B, Fauriat C, Vey N, Garciaz S, Borg J, Collette Y, Aurrand‐Lions M, David G, Zimmermann P. Downregulation of stromal syntenin sustains AML development. EMBO Mol Med 2023; 15:e17570. [PMID: 37819151 PMCID: PMC10630886 DOI: 10.15252/emmm.202317570] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 10/13/2023] Open
Abstract
The crosstalk between cancer and stromal cells plays a critical role in tumor progression. Syntenin is a small scaffold protein involved in the regulation of intercellular communication that is emerging as a target for cancer therapy. Here, we show that certain aggressive forms of acute myeloid leukemia (AML) reduce the expression of syntenin in bone marrow stromal cells (BMSC). Stromal syntenin deficiency, in turn, generates a pro-tumoral microenvironment. From serial transplantations in mice and co-culture experiments, we conclude that syntenin-deficient BMSC stimulate AML aggressiveness by promoting AML cell survival and protein synthesis. This pro-tumoral activity is supported by increased expression of endoglin, a classical marker of BMSC, which in trans stimulates AML translational activity. In short, our study reveals a vicious signaling loop potentially at the heart of AML-stroma crosstalk and unsuspected tumor-suppressive effects of syntenin that need to be considered during systemic targeting of syntenin in cancer therapy.
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Affiliation(s)
- Raphael Leblanc
- Team Spatio‐Temporal Regulation of Cell Signaling‐Scaffolds and Phosphoinositides, Equipe Labellisée Ligue 2018, Centre de Recherche en Cancérologie de Marseille (CRCM)Institut Paoli‐Calmettes, Aix‐Marseille Université, Inserm, CNRSMarseilleFrance
| | - Rania Ghossoub
- Team Spatio‐Temporal Regulation of Cell Signaling‐Scaffolds and Phosphoinositides, Equipe Labellisée Ligue 2018, Centre de Recherche en Cancérologie de Marseille (CRCM)Institut Paoli‐Calmettes, Aix‐Marseille Université, Inserm, CNRSMarseilleFrance
| | - Armelle Goubard
- TrGET Preclinical Platform, Centre de Recherche en Cancérologie de Marseille, Inserm, CNRSAix‐Marseille Université, Institut Paoli‐CalmettesMarseilleFrance
| | - Rémy Castellano
- TrGET Preclinical Platform, Centre de Recherche en Cancérologie de Marseille, Inserm, CNRSAix‐Marseille Université, Institut Paoli‐CalmettesMarseilleFrance
| | - Joanna Fares
- Team Spatio‐Temporal Regulation of Cell Signaling‐Scaffolds and Phosphoinositides, Equipe Labellisée Ligue 2018, Centre de Recherche en Cancérologie de Marseille (CRCM)Institut Paoli‐Calmettes, Aix‐Marseille Université, Inserm, CNRSMarseilleFrance
| | - Luc Camoin
- Proteomics and Mass Spectrometry Platform, Centre de Recherche en Cancérologie de MarseilleAix‐Marseille Université, Inserm, CNRS, Institut Paoli CalmettesMarseilleFrance
| | - Stephane Audebert
- Proteomics and Mass Spectrometry Platform, Centre de Recherche en Cancérologie de MarseilleAix‐Marseille Université, Inserm, CNRS, Institut Paoli CalmettesMarseilleFrance
| | - Marielle Balzano
- Team Spatio‐Temporal Regulation of Cell Signaling‐Scaffolds and Phosphoinositides, Equipe Labellisée Ligue 2018, Centre de Recherche en Cancérologie de Marseille (CRCM)Institut Paoli‐Calmettes, Aix‐Marseille Université, Inserm, CNRSMarseilleFrance
| | - Berna Bou‐Tayeh
- Team Immunity and Cancer, Centre de Recherche en Cancérologie de MarseilleAix‐Marseille Université, Inserm, CNRS, Institut Paoli CalmettesMarseilleFrance
| | - Cyril Fauriat
- Team Immunity and Cancer, Centre de Recherche en Cancérologie de MarseilleAix‐Marseille Université, Inserm, CNRS, Institut Paoli CalmettesMarseilleFrance
| | - Norbert Vey
- Aix‐Marseille Univ, Inserm, CNRS, Institut Paoli‐Calmettes, CRCMMarseilleFrance
| | - Sylvain Garciaz
- Aix‐Marseille Univ, Inserm, CNRS, Institut Paoli‐Calmettes, CRCMMarseilleFrance
| | - Jean‐Paul Borg
- Proteomics and Mass Spectrometry Platform, Centre de Recherche en Cancérologie de MarseilleAix‐Marseille Université, Inserm, CNRS, Institut Paoli CalmettesMarseilleFrance
| | - Yves Collette
- TrGET Preclinical Platform, Centre de Recherche en Cancérologie de Marseille, Inserm, CNRSAix‐Marseille Université, Institut Paoli‐CalmettesMarseilleFrance
| | - Michel Aurrand‐Lions
- Team Leuko/Stromal Interactions in Normal and Pathological Hematopoiesis, Centre de Recherche en Cancérologie de Marseille, Aix‐Marseille Université, Inserm, CNRS, Institut Paoli CalmettesMarseilleFrance
| | - Guido David
- Team Spatio‐Temporal Regulation of Cell Signaling‐Scaffolds and Phosphoinositides, Equipe Labellisée Ligue 2018, Centre de Recherche en Cancérologie de Marseille (CRCM)Institut Paoli‐Calmettes, Aix‐Marseille Université, Inserm, CNRSMarseilleFrance
- Department of Human GeneticsK U LeuvenLeuvenBelgium
| | - Pascale Zimmermann
- Team Spatio‐Temporal Regulation of Cell Signaling‐Scaffolds and Phosphoinositides, Equipe Labellisée Ligue 2018, Centre de Recherche en Cancérologie de Marseille (CRCM)Institut Paoli‐Calmettes, Aix‐Marseille Université, Inserm, CNRSMarseilleFrance
- Department of Human GeneticsK U LeuvenLeuvenBelgium
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24
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Jia W, Yuan J, Li S, Cheng B. The role of dysregulated mRNA translation machinery in cancer pathogenesis and therapeutic value of ribosome-inactivating proteins. Biochim Biophys Acta Rev Cancer 2023; 1878:189018. [PMID: 37944831 DOI: 10.1016/j.bbcan.2023.189018] [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: 09/14/2023] [Revised: 10/17/2023] [Accepted: 11/02/2023] [Indexed: 11/12/2023]
Abstract
Dysregulated protein synthesis is a hallmark of tumors. mRNA translation reprogramming contributes to tumorigenesis, which is fueled by abnormalities in ribosome formation, tRNA abundance and modification, and translation factors. Not only malignant cells but also stromal cells within tumor microenvironment can undergo transformation toward tumorigenic phenotypes during translational reprogramming. Ribosome-inactivating proteins (RIPs) have garnered interests for their ability to selectively inhibit protein synthesis and suppress tumor growth. This review summarizes the role of dysregulated translation machinery in tumor development and explores the potential of RIPs in cancer treatment.
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Affiliation(s)
- Wentao Jia
- Oncology Department of Traditional Chinese Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China; Faculty of Traditional Chinese Medicine, Naval Medical University, Shanghai 200043, China
| | - Jiaying Yuan
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Shu Li
- Department of Gastroenterology, Baoshan Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201900, China.
| | - Binbin Cheng
- Oncology Department of Traditional Chinese Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China; Faculty of Traditional Chinese Medicine, Naval Medical University, Shanghai 200043, China.
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25
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Luna-Marco C, Ubink A, Kopsida M, Heindryckx F. Endoplasmic Reticulum Stress and Metabolism in Hepatocellular Carcinoma. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:1377-1388. [PMID: 36309104 DOI: 10.1016/j.ajpath.2022.09.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/23/2022] [Accepted: 09/20/2022] [Indexed: 11/05/2022]
Abstract
Hepatocellular carcinoma (HCC) is the most common type of primary liver cancer, accounting for 85% to 90% of all liver cancer cases. It is a hepatocyte-derived primary tumor, causing 550,000 deaths per year, ranking it as one of the most common cancers worldwide. The liver is a highly metabolic organ with multiple functions, including digestion, detoxification, breakdown of fats, and production of bile and cholesterol, in addition to storage of vitamins, glycogen, and minerals, and synthesizing plasma proteins and clotting factors. Due to these fundamental and diverse functions, the malignant transformation of hepatic cells can have a severe impact on the liver's metabolism. Furthermore, tumorigenesis is often accompanied by activation of the endoplasmic reticulum (ER) stress pathways, which are known to be highly intertwined with several metabolic pathways. Because HCC is characterized by changes in the metabolome and by an aberrant activation of the ER stress pathways, the aim of this review was to summarize the current knowledge that links ER stress and metabolism in HCC, thereby focusing on potential therapeutic targets.
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Affiliation(s)
- Clara Luna-Marco
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Anna Ubink
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Maria Kopsida
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Femke Heindryckx
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden.
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26
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Mori K, Matsumoto K, Ikeda M, Koguchi D, Shimizu Y, Tsumura H, Ishii D, Tsuji S, Sato Y, Iwamura M. Membranous Expression of Heart Development Protein with EGF-like Domain 1 Is Associated with a Good Prognosis in Patients with Bladder Cancer. Diagnostics (Basel) 2023; 13:3067. [PMID: 37835810 PMCID: PMC10572329 DOI: 10.3390/diagnostics13193067] [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: 08/31/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
OBJECTIVE To investigate the correlation between total protein expression of heart development protein with EGF-like domain 1 (HEG1) and clinicopathological characteristics in patients with bladder cancer (BC) after radical cystectomy (RC). PATIENTS AND METHODS We retrospectively analyzed data from 110 patients who underwent RC at Kitasato University Hospital. And we prepared an anti-HEG1 monoclonal antibody W10B9, which can detect total HEG1 protein. HEG1 protein expression in tumor cells was evaluated separately for membrane and cytoplasmic staining using immunohistochemistry. RESULTS Membranous HEG1 expression was associated with absent lymphovascular invasion (p < 0.01) and low pT stage (p < 0.01). Kaplan-Meier analysis revealed that the membranous HEG1-positive group had significantly long recurrence-free survival (RFS) (p < 0.01) and cancer-specific survival (p = 0.01). Expression of membranous HEG1 was identified as an independent prognostic factor for RFS (p = 0.04). There were no significant differences between cytoplasmic HEG1 expression and clinicopathologic factors including prognosis. CONCLUSION The expression of membranous HEG1 could serve as a favorable prognostic indicator in patients with BC treated with RC.
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Affiliation(s)
- Kohei Mori
- Department of Urology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0374, Kanagawa, Japan; (K.M.); (M.I.); (D.K.); (Y.S.); (H.T.); (D.I.); (Y.S.); (M.I.)
| | - Kazumasa Matsumoto
- Department of Urology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0374, Kanagawa, Japan; (K.M.); (M.I.); (D.K.); (Y.S.); (H.T.); (D.I.); (Y.S.); (M.I.)
| | - Masaomi Ikeda
- Department of Urology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0374, Kanagawa, Japan; (K.M.); (M.I.); (D.K.); (Y.S.); (H.T.); (D.I.); (Y.S.); (M.I.)
| | - Dai Koguchi
- Department of Urology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0374, Kanagawa, Japan; (K.M.); (M.I.); (D.K.); (Y.S.); (H.T.); (D.I.); (Y.S.); (M.I.)
| | - Yuriko Shimizu
- Department of Urology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0374, Kanagawa, Japan; (K.M.); (M.I.); (D.K.); (Y.S.); (H.T.); (D.I.); (Y.S.); (M.I.)
| | - Hideyasu Tsumura
- Department of Urology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0374, Kanagawa, Japan; (K.M.); (M.I.); (D.K.); (Y.S.); (H.T.); (D.I.); (Y.S.); (M.I.)
| | - Daisuke Ishii
- Department of Urology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0374, Kanagawa, Japan; (K.M.); (M.I.); (D.K.); (Y.S.); (H.T.); (D.I.); (Y.S.); (M.I.)
| | - Shoutaro Tsuji
- Department of Medical Technology & Clinical Engineering, Gunma University of Health and Welfare, 191-1 Kawamagari-machi, Maebashi-shi 371-0823, Gunma, Japan;
| | - Yuichi Sato
- Department of Urology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0374, Kanagawa, Japan; (K.M.); (M.I.); (D.K.); (Y.S.); (H.T.); (D.I.); (Y.S.); (M.I.)
- KITASATO-OTSUKA Biomedical Assay Laboratories Co., Ltd., 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0329, Kanagawa, Japan
| | - Masatsugu Iwamura
- Department of Urology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0374, Kanagawa, Japan; (K.M.); (M.I.); (D.K.); (Y.S.); (H.T.); (D.I.); (Y.S.); (M.I.)
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27
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Myong S, Lee CY, Joshi M, Wang A. 5'UTR G-quadruplex structure enhances translation in size dependent manner. RESEARCH SQUARE 2023:rs.3.rs-3352233. [PMID: 37790436 PMCID: PMC10543253 DOI: 10.21203/rs.3.rs-3352233/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Translation initiation in bacteria is frequently regulated by various structures in the 5' untranslated region (5'UTR). Previously, we demonstrated that G-quadruplex (G4) formation in non-template DNA enhances transcription. In this study, we aimed to explore how G4 formation in mRNA (RG4) at 5'UTR impacts translation using a T7-based in vitro translation system and in E. coli. We showed that RG4 strongly promotes translation efficiency in a size-dependent manner. Additionally, inserting a hairpin upstream of the RG4 further enhances translation efficiency, reaching up to a 12-fold increase. We found that the RG4-dependent effect is not due to increased ribosome affinity, ribosome binding site accessibility, or mRNA stability. We proposed a physical barrier model in which bulky structures in 5'UTR prevent ribosome dislodging and thereby increase the translation output. This study provides biophysical insights into the regulatory role of 5'UTR structures in bacterial translation, highlighting their potential applications in tuning gene expression.
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Affiliation(s)
- Sua Myong
- Boston Children's Hospital/Harvard Medical School
| | | | - Meera Joshi
- Boston Children's Hospital/Harvard Medical School
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28
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Tan K, Hu Y, Liang Z, Li CY, Yau WL, Kuang Y. Dual Input-Controlled Synthetic mRNA Circuit for Bidirectional Protein Expression Regulation. ACS Synth Biol 2023; 12:2516-2523. [PMID: 37652441 PMCID: PMC10510700 DOI: 10.1021/acssynbio.3c00144] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Indexed: 09/02/2023]
Abstract
Synthetic mRNA circuits manipulate cell fate by controlling output protein expression via cell-specific input molecule detection. Most current circuits either repress or enhance output production upon input binding. Such binary input-output mechanisms restrict the fine-tuning of protein expression to control complex cellular events. Here we designed mRNA circuits using enhancer/repressor modules that were independently controlled by different input molecules, resulting in bidirectional output regulation; the maximal enhancement over maximal repression was 57 fold. The circuit either enhances or represses protein production in different cells based on the difference in the expression of two microRNAs. This study examined novel bidirectional circuit designs capable of fine-tuning protein production by sensing multiple input molecules. It also broadened the scope of cell manipulation by synthetic mRNA circuits, facilitating the development of mRNA circuits for precise cell manipulation and providing cell-based solutions to biomedical problems.
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Affiliation(s)
- Kaixin Tan
- Department
of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Room 5578, Academic Building, Clear
Water Bay, Kowloon, Hong Kong
| | - Yaxin Hu
- Department
of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Room 5578, Academic Building, Clear
Water Bay, Kowloon, Hong Kong
| | - Zhenghua Liang
- Department
of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Room 5578, Academic Building, Clear
Water Bay, Kowloon, Hong Kong
| | - Cheuk Yin Li
- Department
of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Room 5578, Academic Building, Clear
Water Bay, Kowloon, Hong Kong
| | - Wai Laam Yau
- Department
of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Room 5578, Academic Building, Clear
Water Bay, Kowloon, Hong Kong
| | - Yi Kuang
- Department
of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Room 5578, Academic Building, Clear
Water Bay, Kowloon, Hong Kong
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Torres N, Tobón-Cornejo S, Velazquez-Villegas LA, Noriega LG, Alemán-Escondrillas G, Tovar AR. Amino Acid Catabolism: An Overlooked Area of Metabolism. Nutrients 2023; 15:3378. [PMID: 37571315 PMCID: PMC10421169 DOI: 10.3390/nu15153378] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/14/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Amino acids have been extensively studied in nutrition, mainly as key elements for maintaining optimal protein synthesis in the body as well as precursors of various nitrogen-containing compounds. However, it is now known that amino acid catabolism is an important element for the metabolic control of different biological processes, although it is still a developing field to have a deeper understanding of its biological implications. The mechanisms involved in the regulation of amino acid catabolism now include the contribution of the gut microbiota to amino acid oxidation and metabolite generation in the intestine, the molecular mechanisms of transcriptional control, and the participation of specific miRNAs involved in the regulation of amino acid degrading enzymes. In addition, molecules derived from amino acid catabolism play a role in metabolism as they are used in the epigenetic regulation of many genes. Thus, this review aims to examine the mechanisms of amino acid catabolism and to support the idea that this process is associated with the immune response, abnormalities during obesity, in particular insulin resistance, and the regulation of thermogenesis.
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Affiliation(s)
| | | | | | | | | | - Armando R. Tovar
- Departamento de Fisiología de la Nutrición, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No 15. Col Belisario Domínguez-Sección XVI, Tlalpan, Mexico City 14080, Mexico; (N.T.); (S.T.-C.); (L.A.V.-V.); (L.G.N.); (G.A.-E.)
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30
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Gao Y, Wang H. Ribosome Heterogeneity in Development and Disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.25.550527. [PMID: 37546733 PMCID: PMC10402066 DOI: 10.1101/2023.07.25.550527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
The functional ribosome is composed of ∼80 ribosome proteins. With the intensity-based absolute quantification (iBAQ) value, we calculate the stoichiometry ratio of each ribosome protein. We analyze the ribosome ratio-omics (Ribosome R ), which reflects the holistic signature of ribosome composition, in various biological samples with distinct functions, developmental stages, and pathological outcomes. The Ribosome R reveals significant ribosome heterogeneity among different tissues of fat, spleen, liver, kidney, heart, and skeletal muscles. During tissue development, testes at various stages of spermatogenesis show distinct Ribosome R signatures. During in vitro neuronal maturation, the Ribosome R changes reveal functional association with certain molecular aspects of neurodevelopment. Regarding ribosome heterogeneity associated with pathological conditions, the Ribosome R signature of gastric tumors is functionally linked to pathways associated with tumorigenesis. Moreover, the Ribosome R undergoes dynamic changes in macrophages following immune challenges. Taken together, with the examination of a broad spectrum of biological samples, the Ribosome R barcode reveals ribosome heterogeneity and specialization in cell function, development, and disease. One-Sentence Summary Ratio-omics signature of ribosome deciphers functionally relevant heterogeneity in development and disease.
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Fernandez A, Monsen PJ, Platanias LC, Schiltz GE. Medicinal chemistry approaches to target the MNK-eIF4E axis in cancer. RSC Med Chem 2023; 14:1060-1087. [PMID: 37360400 PMCID: PMC10285747 DOI: 10.1039/d3md00121k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/08/2023] [Indexed: 06/28/2023] Open
Abstract
Aberrant translation of proteins that promote cell proliferation is an essential factor that defines oncogenic processes and cancer. The process for ribosomal translation of proteins from mRNA requires an essential initiation step which is controlled by the protein eIF4E, which binds the RNA 5'-cap and forms the eIF4F complex that subsequently translates protein. Typically, eIF4E is activated by phosphorylation on Ser209 by MNK1 and MNK2 kinases. Substantial work has shown that eIF4E and MNK1/2 are dysregulated in many cancers and this axis has therefore become an active area of interest for developing new cancer therapeutics. This review summarizes and discusses recent work to develop small molecules that target different steps in the MNK-eIF4E axis as potential cancer therapeutics. The aim of this review is to cover the breadth of different molecular approaches being taken and the medicinal chemistry basis for their optimization and testing as new cancer therapeutics.
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Affiliation(s)
- Ann Fernandez
- Department of Chemistry, Northwestern University Evanston IL 60208 USA
| | - Paige J Monsen
- Department of Chemistry, Northwestern University Evanston IL 60208 USA
| | - Leonidas C Platanias
- Robert H. Lurie Comprehensive Cancer Center Chicago IL 60611 USA
- Division of Hematology-Oncology, Department of Medicine, Feinberg School of Medicine, Northwestern University Chicago IL 60611 USA
- Department of Medicine, Jesse Brown Veterans Affairs Medical Center Chicago IL 60612 USA
| | - Gary E Schiltz
- Department of Chemistry, Northwestern University Evanston IL 60208 USA
- Robert H. Lurie Comprehensive Cancer Center Chicago IL 60611 USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine Chicago IL 60611 USA
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Valimukhametova AR, Lee BH, Topkiran UC, Gries K, Gonzalez-Rodriguez R, Coffer JL, Akkaraju G, Naumov A. Cancer Therapeutic siRNA Delivery and Imaging by Nitrogen- and Neodymium-Doped Graphene Quantum Dots. ACS Biomater Sci Eng 2023; 9:3425-3434. [PMID: 37255435 DOI: 10.1021/acsbiomaterials.3c00369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
While small interfering RNA (siRNA) technology has become a powerful tool that can enable cancer-specific gene therapy, its translation to the clinic is still hampered by the inability of the genes alone to cell transfection, poor siRNA stability in blood, and the lack of delivery tracking capabilities. Recently, graphene quantum dots (GQDs) have emerged as a novel platform allowing targeted drug delivery and fluorescence image tracking in visible and near-infrared regions. These capabilities can aid in overcoming primary obstacles to siRNA therapeutics. Here, for the first time, we utilize biocompatible nitrogen- and neodymium-doped graphene quantum dots (NGQDs and Nd-NGQDs, respectively) for the delivery of Kirsten rat sarcoma virus (KRAS) and epidermal growth factor receptor (EGFR) siRNA effective against a variety of cancer types. GQDs loaded with siRNA noncovalently facilitate successful siRNA transfection into HeLa cells, confirmed by confocal fluorescence microscopy at biocompatible GQD concentrations of 375 μg/mL. While the GQD platform provides visible fluorescence tracking, Nd doping enables deeper-tissue near-infrared fluorescence imaging suitable for both in vitro and in vivo applications. The therapeutic efficacy of the GQD/siRNA complex is verified by successful protein knockdown in HeLa cells at nanomolar siEGFR and siKRAS concentrations. A range of GQD/siRNA loading ratios and payloads are tested to ultimately provide substantial inhibition of protein expression down to 31-45%, comparable with conventional Lipofectamine-mediated delivery. This demonstrates the promising potential of GQDs for the nontoxic delivery of siRNA and genes in general, complemented by multiwavelength image tracking.
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Affiliation(s)
- Alina R Valimukhametova
- Department of Physics and Astronomy, Texas Christian University, Fort Worth 76129, Texas, United States
| | - Bong Han Lee
- Department of Physics and Astronomy, Texas Christian University, Fort Worth 76129, Texas, United States
| | - Ugur C Topkiran
- Department of Physics and Astronomy, Texas Christian University, Fort Worth 76129, Texas, United States
| | - Klara Gries
- Department of Chemistry and Biochemistry, Heidelberg University, Heidelberg 69117, Germany
| | | | - Jeffery L Coffer
- Department of Chemistry and Biochemistry, Texas Christian University, Fort Worth 76129, Texas, United States
| | - Giridhar Akkaraju
- Department of Biology, Texas Christian University, Fort Worth 76129, Texas, United States
| | - Anton Naumov
- Department of Physics and Astronomy, Texas Christian University, Fort Worth 76129, Texas, United States
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Zhang D, Zhu L, Wang F, Li P, Wang Y, Gao Y. Molecular mechanisms of eukaryotic translation fidelity and their associations with diseases. Int J Biol Macromol 2023; 242:124680. [PMID: 37141965 DOI: 10.1016/j.ijbiomac.2023.124680] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/27/2023] [Indexed: 05/06/2023]
Abstract
Converting genetic information into functional proteins is a complex, multi-step process, with each step being tightly regulated to ensure the accuracy of translation, which is critical to cellular health. In recent years, advances in modern biotechnology, especially the development of cryo-electron microscopy and single-molecule techniques, have enabled a clearer understanding of the mechanisms of protein translation fidelity. Although there are many studies on the regulation of protein translation in prokaryotes, and the basic elements of translation are highly conserved in prokaryotes and eukaryotes, there are still great differences in the specific regulatory mechanisms. This review describes how eukaryotic ribosomes and translation factors regulate protein translation and ensure translation accuracy. However, a certain frequency of translation errors does occur in translation, so we describe diseases that arise when the rate of translation errors reaches or exceeds a threshold of cellular tolerance.
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Affiliation(s)
- Dejiu Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Lei Zhu
- College of Basic Medical, Qingdao Binhai University, Qingdao, China
| | - Fei Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China.
| | - Yanyan Gao
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China.
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Barangi S, Hayes AW, Karimi G. The role of lncRNAs/miRNAs/Sirt1 axis in myocardial and cerebral injury. Cell Cycle 2023; 22:1062-1073. [PMID: 36703306 PMCID: PMC10081082 DOI: 10.1080/15384101.2023.2172265] [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: 10/05/2022] [Revised: 11/30/2022] [Accepted: 12/07/2022] [Indexed: 01/28/2023] Open
Abstract
In recent years, researchers have begun to realize the importance of the role of non-coding RNAs in the treatment of cancer and cardiovascular and neurological diseases. LncRNAs and miRNAs are important non-coding RNAs, which regulate gene expression and activate mRNA translation through binding to diverse target sites. Their involvement in the regulation of protein function and the modulation of physiological and pathological conditions continues to be investigated. Sirtuins, especially Sirt1, have a critical function in regulating a variety of physiological processes such as oxidative stress, inflammation, apoptosis, and autophagy. The lncRNAs/miRNAs/Sirt1 axis may be a novel regulatory mechanism, which is involved in the progression and/or prevention of numerous diseases. This review focuses on recent findings on the crosstalk between non-coding RNAs and Sirt1 in myocardial and cerebral injuries and may provide some insight into the development of novel approaches in the treatment of these disorders.Abbreviation: BMECs, brain microvascular endothelial cells; C2dat1, calcium/calmodulin-dependent protein kinase type II subunit delta (CAMK2D)-associated transcript 1; EPCs, endothelial progenitor cells; FOXOs, forkhead transcription factors; GAS5, growth arrest-specific 5; HAECs, human aortic endothelial cells; HAND2-AS1, HAND2 Antisense RNA 1; HIF-1α, hypoxia-inducible factor-1α; ILF3-AS1, interleukin enhancer-binding factor 3-antisense RNA 1; KLF3-AS1, KLF3 antisense RNA 1; LncRNA, long noncoding RNA; LUADT1, Lung Adenocarcinoma Associated Transcript 1; MALAT1, Metastasis-associated lung adenocarcinoma transcript 1; miRNA, microRNA; NEAT1, nuclear enriched abundant transcript 1; NF-κB, nuclear factor kappa B; OIP5-AS1, Opa-interacting protein 5-antisense transcript 1; Sirt1-AS, Sirt1 Antisense RNA; SNHG7, small nucleolar RNA host gene 7; SNHG8, small nucleolar RNA host gene 8; SNHG12, small nucleolar RNA host gene 12; SNHG15, small nucleolar RNA host gene 15; STAT3, signal transducers and activators of transcription 3; TUG1, taurine up-regulated gene 1; VSMCs, vascular smooth muscle cells; XIST, X inactive specific transcript; ZFAS1, ZNFX1 Antisense RNA 1.
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Affiliation(s)
- Samira Barangi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - A. Wallace Hayes
- Michigan State University, East Lansing, MI, USA
- University of South Florida, Tampa, FL, USA
| | - Gholamreza Karimi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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35
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Brune Z, Li D, Song S, Li DI, Castro I, Rasquinha R, Rice MR, Guo Q, Kampta K, Moss M, Lallo M, Pimenta E, Somerville C, Lapan M, Nelson V, Dos Santos CO, Blanc L, Pruitt K, Barnes BJ. Loss of IRF5 increases ribosome biogenesis leading to alterations in mammary gland architecture and metastasis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.01.538998. [PMID: 37292919 PMCID: PMC10246023 DOI: 10.1101/2023.05.01.538998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Despite the progress made in identifying cellular factors and mechanisms that predict progression and metastasis, breast cancer remains the second leading cause of death for women in the US. Using The Cancer Genome Atlas and mouse models of spontaneous and invasive mammary tumorigenesis, we identified that loss of function of interferon regulatory factor 5 (IRF5) is a predictor of metastasis and survival. Histologic analysis of Irf5 -/- mammary glands revealed expansion of luminal and myoepithelial cells, loss of organized glandular structure, and altered terminal end budding and migration. RNA-seq and ChIP-seq analyses of primary mammary epithelial cells from Irf5 +/+ and Irf5 -/- littermate mice revealed IRF5-mediated transcriptional regulation of proteins involved in ribosomal biogenesis. Using an invasive model of breast cancer lacking Irf5 , we demonstrate that IRF5 re-expression inhibits tumor growth and metastasis via increased trafficking of tumor infiltrating lymphocytes and altered tumor cell protein synthesis. These findings uncover a new function for IRF5 in the regulation of mammary tumorigenesis and metastasis. Highlights Loss of IRF5 is a predictor of metastasis and survival in breast cancer.IRF5 contributes to the regulation of ribosome biogenesis in mammary epithelial cells.Loss of IRF5 function in mammary epithelial cells leads to increased protein translation.
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Ginsenoside Rh2 suppresses colon cancer growth by targeting the miR-150-3p/SRCIN1/Wnt axis. Acta Biochim Biophys Sin (Shanghai) 2023; 55:633-648. [PMID: 36916297 DOI: 10.3724/abbs.2023032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
Ginsenoside Rh2, which is extracted from ginseng, exerts antitumor activity. Recent studies suggest that Rh2 may suppress the growth of colon cancer (CC) in vitro. However, the underlying mechanism remains unclear. In this study, we identified the relative levels of miR-150-3p in CC tissues and cells by a comprehensive strategy of data mining, computational biology, and real-time reverse transcription PCR (qRT-PCR) experiments. The regulatory effects of miR-150-3p/SRCIN1 on the proliferative and invasive abilities of CC cells are evaluated by CCK-8, EdU, wound healing, and transwell assays. Cell cycle- and apoptosis-related protein levels are assessed by western blot analysis. An in vivo tumor formation assay was conducted to explore the effects of miR-150-3p on tumor growth. Furthermore, bioinformatics and dual luciferase reporter assays are applied to determine the functional binding of miRNA to mRNA of the target gene. Finally, the relationship between Rh2 and miR-150-3p was further verified in SW620 and HCT-116 cells. miR-150-3p is downregulated in CC tissues and cell lines. Functional assays indicate that the upregulation of miR-150-3p inhibits tumor growth both in vivo and in vitro. In addition, SRCIN1 is upregulated in CC and predicts a poor prognosis, and it is the direct target for miR-150-3p. Moreover, the miR-150-3p mimic decreases Topflash/Fopflash-dependent luciferase activity, resulting in the inhibition of Wnt pathway activity. Rh2 can suppress the growth of CC by increasing miR-150-3p expression. Rh2 alleviates the accelerating effect on Wnt pathway activity, cell proliferation/migration, and colony formation caused by miR-150-3p inhibition. Rh2 inhibits the miR-150-3p/SRCIN1/Wnt axis to suppress colon cancer growth.
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Liu J, Niu L, Hao J, Yao Y, Yan M, Li H. circIPO7 dissociates caprin-1 from ribosomes and inhibits gastric cancer cell proliferation by suppressing EGFR and mTOR. Oncogene 2023; 42:980-993. [PMID: 36732659 PMCID: PMC10038803 DOI: 10.1038/s41388-023-02610-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 01/19/2023] [Accepted: 01/23/2023] [Indexed: 02/04/2023]
Abstract
Circular RNA (circRNA) is a novel RNA molecule characterized by covalently closed loop structure. Since its discovery, researchers have shown that circRNA is not "splicing noise" but a participant of various pathophysiological processes through unique mechanisms. circIPO7, which was identified as an independent prognostic factor in gastric cancer (GC) patients, was downregulated in GC tissues and cells compared to paracarcinoma tissues and normal epithelial cells. circIPO7 overexpression significantly suppressed GC cell proliferation in vitro and in vivo. Mechanistically, circIPO7 directly binds with caprin-1, an RNA-binding protein involved in mRNA translation, sharing overlapping binding sites with G3BP1. Thus, the complex containing overexpressed circIPO7 blocked the caprin-1-G3BP1 interaction and dissociated caprin-1 and its target mRNAs (EGFR and mTOR) from ribosomes, resulting in their translational inhibition, followed by PI3K/AKT/mTOR pathway inactivation. We uncovered a novel molecular mechanism for circRNAs in GC development, identifying circIPO7 as a potential target for cancer treatment.
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Affiliation(s)
- Jing Liu
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin, 300060, China
- Key Laboratory of Cancer Immunology and Biotherapy, Tianjin, 300060, China
| | - Liling Niu
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin, 300060, China
- Key Laboratory of Cancer Immunology and Biotherapy, Tianjin, 300060, China
| | - Jiaru Hao
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin, 300060, China
- Key Laboratory of Cancer Immunology and Biotherapy, Tianjin, 300060, China
| | - Yuan Yao
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin, 300060, China
- Key Laboratory of Cancer Immunology and Biotherapy, Tianjin, 300060, China
| | - Meinan Yan
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin, 300060, China
- Key Laboratory of Cancer Immunology and Biotherapy, Tianjin, 300060, China
| | - Hui Li
- Department of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin, 300060, China.
- Key Laboratory of Cancer Immunology and Biotherapy, Tianjin, 300060, China.
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Kochavi A, Lovecchio D, Faller WJ, Agami R. Proteome diversification by mRNA translation in cancer. Mol Cell 2023; 83:469-480. [PMID: 36521491 DOI: 10.1016/j.molcel.2022.11.014] [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: 09/19/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 12/15/2022]
Abstract
mRNA translation is a highly conserved and tightly controlled mechanism for protein synthesis and is well known to be altered by oncogenes to promote cancer development. This distorted mRNA translation is accompanied by the vulnerability of cancer to inhibitors of key mRNA translation components. Novel studies also suggest that these alternations could be utilized for immunotherapy. Ribosome heterogeneity and alternative responses to nutrient shortages, which aid cancer growth and spread, are proposed to elicit aberrant protein production but may also result in previously unidentified therapeutic targets, such as the presentation of cancer-specific peptides at the surface of cancer cells (neoepitopes). This review will assess the driving forces in tRNA and ribosome function that underlie proteome diversification due to alterations in mRNA translation in cancer cells.
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Affiliation(s)
- Adva Kochavi
- Division of Oncogenomics, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Oncode Institute, the Netherlands
| | - Domenica Lovecchio
- Division of Oncogenomics, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Oncode Institute, the Netherlands
| | - William James Faller
- Division of Oncogenomics, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Reuven Agami
- Division of Oncogenomics, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Oncode Institute, the Netherlands; Erasmus MC, Rotterdam University, Rotterdam, the Netherlands.
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Lee AQ, Konishi H, Duong C, Yoshida S, Davis RR, Van Dyke JE, Ijiri M, McLaughlin B, Kim K, Li Y, Beckett L, Nitin N, McPherson JD, Tepper CG, Satake N. A distinct subpopulation of leukemia initiating cells in acute precursor B lymphoblastic leukemia: quiescent phenotype and unique transcriptomic profile. Front Oncol 2022; 12:972323. [PMID: 36212452 PMCID: PMC9533407 DOI: 10.3389/fonc.2022.972323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 08/24/2022] [Indexed: 02/01/2023] Open
Abstract
In leukemia, a distinct subpopulation of cancer-initiating cells called leukemia stem cells (LSCs) is believed to drive population expansion and tumor growth. Failing to eliminate LSCs may result in disease relapse regardless of the amount of non-LSCs destroyed. The first step in targeting and eliminating LSCs is to identify and characterize them. Acute precursor B lymphoblastic leukemia (B-ALL) cells derived from patients were incubated with fluorescent glucose analog 2-(N-(7-Nitrobenz-2-oxa-1, 3-diazol-4-yl) Amino)-2-Deoxyglucose (NBDG) and sorted based on NBDG uptake. Cell subpopulations defined by glucose uptake were then serially transplanted into mice and evaluated for leukemia initiating capacity. Gene expression profiles of these cells were characterized using RNA-Sequencing (RNA-Seq). A distinct population of NBDG-low cells was identified in patient B-ALL samples. These cells are a small population (1.92% of the entire leukemia population), have lower HLA expression, and are smaller in size (4.0 to 7.0 μm) than the rest of the leukemia population. All mice transplanted with NBDG-low cells developed leukemia between 5 and 14 weeks, while those transplanted with NBDG-high cells did not develop leukemia (p ≤ 0.0001-0.002). Serial transplantation of the NBDG-low mouse model resulted in successful leukemia development. NBDG-medium (NBDG-med) populations also developed leukemia. Interestingly, comprehensive molecular characterization of NBDG-low and NBDG-med cells from patient-derived xenograft (PDX) models using RNA-Seq revealed a distinct profile of 2,162 differentially-expressed transcripts (DETs) (p<0.05) with 70.6% down-regulated in NBDG-low cells. Hierarchical clustering of DETs showed distinct segregation of NBDG-low from NBDG-med and NBDG-high groups with marked transcription expression alterations in the NBDG-low group consistent with cancer survival. In conclusion, A unique subpopulation of cells with low glucose uptake (NBDG-low) in B-ALL was discovered. These cells, despite their quiescence characteristics, once transplanted in mice, showed potent leukemia initiating capacity. Although NBDG-med cells also initiated leukemia, gene expression profiling revealed a distinct signature that clearly distinguishes NBDG-low cells from NBDG-med and the rest of the leukemia populations. These results suggest that NBDG-low cells may represent quiescent LSCs. These cells can be activated in the appropriate environment in vivo, showing leukemia initiating capacity. Our study provides insight into the biologic mechanisms of B-ALL initiation and survival.
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Affiliation(s)
- Alex Q. Lee
- Department of Pediatrics, University of California (UC) Davis School of Medicine, Sacramento, CA, United States
| | - Hiroaki Konishi
- Department of Pediatrics, University of California (UC) Davis School of Medicine, Sacramento, CA, United States
| | - Connie Duong
- Department of Pediatrics, University of California (UC) Davis School of Medicine, Sacramento, CA, United States
| | - Sakiko Yoshida
- Department of Pediatrics, University of California (UC) Davis School of Medicine, Sacramento, CA, United States
| | - Ryan R. Davis
- Genomics Shared Resource, University of California (UC) Davis Comprehensive Cancer Center, Sacramento, CA, United States
| | - Jonathan E. Van Dyke
- Flow Cytometry Shared Resource, University of California (UC) Davis Comprehensive Cancer Center, Sacramento, CA, United States
| | - Masami Ijiri
- Department of Pediatrics, University of California (UC) Davis School of Medicine, Sacramento, CA, United States
| | - Bridget McLaughlin
- Flow Cytometry Shared Resource, University of California (UC) Davis Comprehensive Cancer Center, Sacramento, CA, United States
| | - Kyoungmi Kim
- Department of Public Health Sciences, Division of Biostatistics, University of California (UC) Davis, Davis, CA, United States
| | - Yueju Li
- Department of Public Health Sciences, Division of Biostatistics, University of California (UC) Davis, Davis, CA, United States
| | - Laurel Beckett
- Department of Public Health Sciences, Division of Biostatistics, University of California (UC) Davis, Davis, CA, United States
| | - Nitin Nitin
- Departments of Food Science & Technology and Biological & Agricultural Engineering, University of California (UC) Davis, Davis, CA, United States
| | - John D. McPherson
- Genomics Shared Resource, University of California (UC) Davis Comprehensive Cancer Center, Sacramento, CA, United States,Department of Biochemistry and Molecular Medicine, University of California (UC) Davis School of Medicine, Sacramento, CA, United States
| | - Clifford G. Tepper
- Genomics Shared Resource, University of California (UC) Davis Comprehensive Cancer Center, Sacramento, CA, United States,Department of Biochemistry and Molecular Medicine, University of California (UC) Davis School of Medicine, Sacramento, CA, United States,*Correspondence: Noriko Satake, ; Clifford G. Tepper,
| | - Noriko Satake
- Department of Pediatrics, University of California (UC) Davis School of Medicine, Sacramento, CA, United States,*Correspondence: Noriko Satake, ; Clifford G. Tepper,
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40
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Jia M, Yuan DY, Lovelace TC, Hu M, Benos PV. Causal Discovery in High-dimensional, Multicollinear Datasets. FRONTIERS IN EPIDEMIOLOGY 2022; 2:899655. [PMID: 36778756 PMCID: PMC9910507 DOI: 10.3389/fepid.2022.899655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 08/05/2022] [Indexed: 11/13/2022]
Abstract
As the cost of high-throughput genomic sequencing technology declines, its application in clinical research becomes increasingly popular. The collected datasets often contain tens or hundreds of thousands of biological features that need to be mined to extract meaningful information. One area of particular interest is discovering underlying causal mechanisms of disease outcomes. Over the past few decades, causal discovery algorithms have been developed and expanded to infer such relationships. However, these algorithms suffer from the curse of dimensionality and multicollinearity. A recently introduced, non-orthogonal, general empirical Bayes approach to matrix factorization has been demonstrated to successfully infer latent factors with interpretable structures from observed variables. We hypothesize that applying this strategy to causal discovery algorithms can solve both the high dimensionality and collinearity problems, inherent to most biomedical datasets. We evaluate this strategy on simulated data and apply it to two real-world datasets. In a breast cancer dataset, we identified important survival-associated latent factors and biologically meaningful enriched pathways within factors related to important clinical features. In a SARS-CoV-2 dataset, we were able to predict whether a patient (1) had Covid-19 and (2) would enter the ICU. Furthermore, we were able to associate factors with known Covid-19 related biological pathways.
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Affiliation(s)
- Minxue Jia
- Department of Computational and Systems Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Joint Carnegie Mellon - University of Pittsburgh Computational Biology PhD Program, Pittsburgh, PA, United States
| | - Daniel Y. Yuan
- Department of Computational and Systems Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Joint Carnegie Mellon - University of Pittsburgh Computational Biology PhD Program, Pittsburgh, PA, United States
| | - Tyler C. Lovelace
- Department of Computational and Systems Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Joint Carnegie Mellon - University of Pittsburgh Computational Biology PhD Program, Pittsburgh, PA, United States
| | - Mengying Hu
- Department of Computational and Systems Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Joint Carnegie Mellon - University of Pittsburgh Computational Biology PhD Program, Pittsburgh, PA, United States
| | - Panayiotis V. Benos
- Department of Computational and Systems Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Joint Carnegie Mellon - University of Pittsburgh Computational Biology PhD Program, Pittsburgh, PA, United States
- Department of Epidemiology, University of Florida, Gainesville, FL, United States
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41
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Ziarniak K, Yang T, Boycott C, Beetch M, Sassek M, Grzeda E, Ma Y, Sliwowska JH, Stefanska B. DNA hypermethylation of Kiss1r promoter and reduction of hepatic Kiss1r in female rats with type 2 diabetes. Epigenetics 2022; 17:2332-2346. [PMID: 36094166 PMCID: PMC9665141 DOI: 10.1080/15592294.2022.2119120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Kisspeptin, produced from the brain and peripheral tissues, may constitute an important link in metabolic regulation in response to external cues, such as diet. The kisspeptin system is well described in the brain. However, its function and regulation in the peripheral tissues, especially in relation to metabolic disease and sex differences, remain to be elucidated. As Kiss1 and Kiss1r, encoding for kisspeptin and kisspeptin receptors, respectively, are altered by overnutrition/fasting and regulated by DNA methylation during puberty and cancer, epigenetic mechanisms in metabolic disorders are highly probable. In the present study, we experimentally induced type 2 diabetes mellitus (DM2) in female Wistar rats using high-fat diet/streptozocin. We analysed expression and DNA methylation of Kiss1 and Kiss1r in the peripheral tissues, using quantitative-reverse-transcription PCR (qRT-PCR) and pyrosequencing. We discovered differential expression of Kiss1 and Kiss1r in peripheral organs in DM2 females, as compared with healthy controls, and the profile differed from patterns reported earlier in males. DM2 in females was linked to the increased Kiss1 mRNA in the liver and increased Kiss1r mRNA in the liver and adipose tissue. However, Kiss1r promoter was hypermethylated in the liver, suggesting gene silencing. Indeed, the increase in DNA methylation of Kiss1r promoter was accompanied by a reduction in Kiss1r protein, implying epigenetic or translational gene repression. Our results deliver novel evidence for tissue-specific differences in Kiss1 and Kiss1r expression in peripheral organs in DM2 females and suggest DNA methylation as a player in regulation of the hepatic kisspeptin system in DM2.
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Affiliation(s)
- Kamil Ziarniak
- Laboratory of Neurobiology, Department of Zoology, Faculty of Veterinary Medicine and Animal Sciences, Poznan University of Life Sciences, Poznan, Poland.,Molecular and Cell Biology Unit, Poznan University of Medical Sciences, Poznan, Poland
| | - Tony Yang
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, the University of British Columbia, Vancouver, BC, Canada
| | - Cayla Boycott
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, the University of British Columbia, Vancouver, BC, Canada
| | - Megan Beetch
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, the University of British Columbia, Vancouver, BC, Canada
| | - Maciej Sassek
- Department of Animal Physiology, Biochemistry and Biostructure, Poznan University of Life Sciences, Poznan, Poland
| | - Emilia Grzeda
- Laboratory of Neurobiology, Department of Zoology, Faculty of Veterinary Medicine and Animal Sciences, Poznan University of Life Sciences, Poznan, Poland
| | - Yuexi Ma
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, the University of British Columbia, Vancouver, BC, Canada
| | - Joanna H Sliwowska
- Laboratory of Neurobiology, Department of Zoology, Faculty of Veterinary Medicine and Animal Sciences, Poznan University of Life Sciences, Poznan, Poland
| | - Barbara Stefanska
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, the University of British Columbia, Vancouver, BC, Canada
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42
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Zhu XX, Li JH, Ni X, Wu X, Hou X, Li YX, Li SJ, Zhao W, Yin XY. Pancreatic ductal adenocarcinoma cells regulated the gemcitabine-resistance function of CAFs by LINC00460. Cancer Sci 2022; 113:3735-3750. [PMID: 36047966 PMCID: PMC9633316 DOI: 10.1111/cas.15547] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 06/28/2022] [Accepted: 07/25/2022] [Indexed: 11/30/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a highly fatal malignancy with extremely poor prognosis. Gemcitabine resistance is a major challenge in the treatment of PDAC. Here, we showed that LINC00460 was associated with the response to gemcitabine both in PDAC patients and PDAC‐PDX. After knocking down LINC00460 in PDAC tumor cells, results of RNA sequencing followed by gene ontology analysis indicated that LINC00460 influenced the activity of growth factors and modified the extracellular matrix. FISH showed that LINC00460 is mostly located in the cytoplasm. Results of RNA pull‐down, LC–MS/MS, RIP, and immunoblotting confirmed that LINC00460 could directly bind to PDAP1. Furthermore, we demonstrated that LINC00460 mediated the cellular communication of PDAC tumor cells and CAFs by PDAP1/PDGFA/PDGFR signaling pathway and regulated the gemcitabine‐resistance function of CAFs, which could be reversed by treatment with a PDGFR inhibitor (crenolanib). PDAC‐PDX tumors with lower expression of LINC00460 showed a better response to gemcitabine plus crenolanib treatment. Our finding supported the application of LINC00460 in precision medicine that uses gemcitabine plus crenolanib to treat PDAC with low expression of LINC00460.
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Affiliation(s)
- Xiao-Xu Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xuhao Ni
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiao Wu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xun Hou
- Center for Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ya-Xiong Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shi-Jin Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wei Zhao
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
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43
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Niu X, Yang Y, Ren Y, Zhou S, Mao Q, Wang Y. Crosstalk between m 6A regulators and mRNA during cancer progression. Oncogene 2022; 41:4407-4419. [PMID: 36008465 DOI: 10.1038/s41388-022-02441-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/09/2022]
Abstract
m6A modification, the most abundant and widespread RNA modification, is present and involved in the occurrence and development of various cancers. To date, most studies have mainly focused on the roles of a single m6A regulator (writer/eraser/reader) in various cancers, but cumulative evidence shows that aberrant m6A regulators and m6A levels exert dual effects (promoting and/or inhibiting roles) in cancer progression. Recently, studies have investigated the direct interactions between different m6A regulators (writer/eraser and reader) and mRNAs in a variety of cancers. In this review, we summarize the functions of m6A regulators and their roles in various types of cancers. We further propose the possible crosstalk mechanisms (Writer-m6A-Reader-mRNA axis and Eraser-m6A-Reader-mRNA axis) between different m6A regulators and mRNAs during cancer progression. We also discuss the clinical potential of m6A regulator‑targeting strategies.
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Affiliation(s)
- Xiaodong Niu
- Department of Neurosurgery and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yuan Yang
- Department of Neurosurgery and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yanming Ren
- Department of Neurosurgery and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Shengtao Zhou
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second Hospital, Sichuan University, Chengdu, China
| | - Qing Mao
- Department of Neurosurgery and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China.
| | - Yuan Wang
- Department of Neurosurgery and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China.
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44
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Geng R, Chen T, Zhong Z, Ni S, Bai J, Liu J. The m6A-Related Long Noncoding RNA Signature Predicts Prognosis and Indicates Tumor Immune Infiltration in Ovarian Cancer. Cancers (Basel) 2022; 14:cancers14164056. [PMID: 36011053 PMCID: PMC9406778 DOI: 10.3390/cancers14164056] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/14/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
Background: OV is the most lethal gynecological malignancy. M6A and lncRNAs have a great impact on OV development and patient immunotherapy response. In this paper, we decided to establish a reliable signature of mRLs. Method: The lncRNAs associated with m6A in OV were analyzed and obtained by co-expression analysis of the TCGA-OV database. Univariate, LASSO and multivariate Cox regression analyses were employed to establish the model of mRLs. K-M analysis, PCA, GSEA and nomogram based on the TCGA-OV and GEO database were conducted to prove the predictive value and independence of the model. The underlying relationship between the model and TME and cancer stemness properties were further investigated through immune feature comparison, consensus clustering analysis and pan-cancer analysis. Results: A prognostic signature comprising four mRLs, WAC-AS1, LINC00997, DNM3OS and FOXN3-AS1, was constructed and verified for OV according to the TCGA and GEO database. The expressions of the four mRLs were confirmed by qRT-PCR in clinical samples. Applying this signature, one can identify patients more effectively. The samples were divided into two clusters, and the clusters had different overall survival rates, clinical features and tumor microenvironments. Finally, pan-cancer analysis further demonstrated that the four mRLs were significantly related to immune infiltration, TME and cancer stemness properties in various cancer types. Conclusions: This study provided an accurate prognostic signature for patients with OV and elucidated the potential mechanism of the mRLs in immune modulation and treatment response, giving new insights into identifying new therapeutic targets.
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Affiliation(s)
- Rui Geng
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, 101 Longmian Avenue, Jiangning District, Nanjing 211166, China
| | - Tian Chen
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Zihang Zhong
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, 101 Longmian Avenue, Jiangning District, Nanjing 211166, China
| | - Senmiao Ni
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, 101 Longmian Avenue, Jiangning District, Nanjing 211166, China
| | - Jianling Bai
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, 101 Longmian Avenue, Jiangning District, Nanjing 211166, China
- Correspondence: (J.B.); (J.L.)
| | - Jinhui Liu
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
- Correspondence: (J.B.); (J.L.)
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45
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Cheng X, Zhou T, Yang Z, Zhou J, Gao M, Huang Y, Su Z. Premature termination codon: a tunable protein translation approach. Biotechniques 2022; 73:80-89. [PMID: 35796100 DOI: 10.2144/btn-2022-0046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Cellular protein-protein interactions are largely dependent on the activities of signaling proteins. Here, we present a technique to tune gene expression at translation level based on G418-inducible readthrough premature termination codon (PTC-on). To demonstrate how this PTC-on can control the expression level of a cellular signaling protein to regulate signal transduction, we settled a p53 PTC-on system in p53-null H1299 cells. After treating with G418, the cells expressed full-length p53 protein in a dose-dependent manner. We further demonstrated to use this PTC-on approach to dissect p53-dependent and p53-independent apoptosis in response to the DNA double strand breaks in H1299 cells. In principle, the PTC-on can be used as a general approach for exploring the functions of any other signaling proteins.
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Affiliation(s)
- Xiyao Cheng
- School of Light Industry and Food Engineering, Guanxi University, No. 100, Daxuedong Road, Xixiangtang District, Nanning, Guangxi, 530004, China.,Protein Engineering & Biopharmaceutical Sciences Laboratory, Hubei University of Technology, 28 Nanli Road, Wuhan, Hubei, 430068, China
| | - Ting Zhou
- Protein Engineering & Biopharmaceutical Sciences Laboratory, Hubei University of Technology, 28 Nanli Road, Wuhan, Hubei, 430068, China
| | - Zixin Yang
- Protein Engineering & Biopharmaceutical Sciences Laboratory, Hubei University of Technology, 28 Nanli Road, Wuhan, Hubei, 430068, China
| | - Jingjing Zhou
- Protein Engineering & Biopharmaceutical Sciences Laboratory, Hubei University of Technology, 28 Nanli Road, Wuhan, Hubei, 430068, China
| | - Meng Gao
- Protein Engineering & Biopharmaceutical Sciences Laboratory, Hubei University of Technology, 28 Nanli Road, Wuhan, Hubei, 430068, China
| | - Yongqi Huang
- Protein Engineering & Biopharmaceutical Sciences Laboratory, Hubei University of Technology, 28 Nanli Road, Wuhan, Hubei, 430068, China
| | - Zhengding Su
- Protein Engineering & Biopharmaceutical Sciences Laboratory, Hubei University of Technology, 28 Nanli Road, Wuhan, Hubei, 430068, China
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46
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Emerging Roles of RNA-Binding Proteins in Neurodevelopment. J Dev Biol 2022; 10:jdb10020023. [PMID: 35735914 PMCID: PMC9224834 DOI: 10.3390/jdb10020023] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/02/2022] [Accepted: 06/08/2022] [Indexed: 02/06/2023] Open
Abstract
Diverse cell types in the central nervous system (CNS) are generated by a relatively small pool of neural stem cells during early development. Spatial and temporal regulation of stem cell behavior relies on precise coordination of gene expression. Well-studied mechanisms include hormone signaling, transcription factor activity, and chromatin remodeling processes. Much less is known about downstream RNA-dependent mechanisms including posttranscriptional regulation, nuclear export, alternative splicing, and transcript stability. These important functions are carried out by RNA-binding proteins (RBPs). Recent work has begun to explore how RBPs contribute to stem cell function and homeostasis, including their role in metabolism, transport, epigenetic regulation, and turnover of target transcripts. Additional layers of complexity are provided by the different target recognition mechanisms of each RBP as well as the posttranslational modifications of the RBPs themselves that alter function. Altogether, these functions allow RBPs to influence various aspects of RNA metabolism to regulate numerous cellular processes. Here we compile advances in RNA biology that have added to our still limited understanding of the role of RBPs in neurodevelopment.
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47
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Surya A, Sarinay-Cenik E. Cell autonomous and non-autonomous consequences of deviations in translation machinery on organism growth and the connecting signalling pathways. Open Biol 2022; 12:210308. [PMID: 35472285 PMCID: PMC9042575 DOI: 10.1098/rsob.210308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 03/31/2022] [Indexed: 01/09/2023] Open
Abstract
Translation machinery is responsible for the production of cellular proteins; thus, cells devote the majority of their resources to ribosome biogenesis and protein synthesis. Single-copy loss of function in the translation machinery components results in rare ribosomopathy disorders, such as Diamond-Blackfan anaemia in humans and similar developmental defects in various model organisms. Somatic copy number alterations of translation machinery components are also observed in specific tumours. The organism-wide response to haploinsufficient loss-of-function mutations in ribosomal proteins or translation machinery components is complex: variations in translation machinery lead to reduced ribosome biogenesis, protein translation and altered protein homeostasis and cellular signalling pathways. Cells are affected both autonomously and non-autonomously by changes in translation machinery or ribosome biogenesis through cell-cell interactions and secreted hormones. We first briefly introduce the model organisms where mutants or knockdowns of protein synthesis and ribosome biogenesis are characterized. Next, we specifically describe observations in Caenorhabditis elegans and Drosophila melanogaster, where insufficient protein synthesis in a subset of cells triggers cell non-autonomous growth or apoptosis responses that affect nearby cells and tissues. We then cover the characterized signalling pathways that interact with ribosome biogenesis/protein synthesis machinery with an emphasis on their respective functions during organism development.
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Affiliation(s)
- Agustian Surya
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, USA
| | - Elif Sarinay-Cenik
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, USA
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48
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Nicosia L, Boffo FL, Ceccacci E, Conforti F, Pallavicini I, Bedin F, Ravasio R, Massignani E, Somervaille TCP, Minucci S, Bonaldi T. Pharmacological inhibition of LSD1 triggers myeloid differentiation by targeting GSE1 oncogenic functions in AML. Oncogene 2022; 41:878-894. [PMID: 34862459 PMCID: PMC8830420 DOI: 10.1038/s41388-021-02123-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 11/05/2021] [Accepted: 11/16/2021] [Indexed: 12/19/2022]
Abstract
The histone demethylase LSD1 is over-expressed in hematological tumors and has emerged as a promising target for anticancer treatment, so that several LSD1 inhibitors are under development and testing, in preclinical and clinical settings. However, the complete understanding of their complex mechanism of action is still unreached. Here, we unraveled a novel mode of action of the LSD1 inhibitors MC2580 and DDP-38003, showing that they can induce differentiation of AML cells through the downregulation of the chromatin protein GSE1. Analysis of the phenotypic effects of GSE1 depletion in NB4 cells showed a strong decrease of cell viability in vitro and of tumor growth in vivo. Mechanistically, we found that a set of genes associated with immune response and cytokine-signaling pathways are upregulated by LSD1 inhibitors through GSE1-protein reduction and that LSD1 and GSE1 colocalize at promoters of a subset of these genes at the basal state, enforcing their transcriptional silencing. Moreover, we show that LSD1 inhibitors lead to the reduced binding of GSE1 to these promoters, activating transcriptional programs that trigger myeloid differentiation. Our study offers new insights into GSE1 as a novel therapeutic target for AML.
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Affiliation(s)
- Luciano Nicosia
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, 20139, Italy
- Leukaemia Biology Laboratory, Cancer Research UK Manchester Institute, The University of Manchester, Oglesby Cancer Research Centre Building, Manchester, M20 4GJ, UK
| | - Francesca Ludovica Boffo
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, 20139, Italy
| | - Elena Ceccacci
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, 20139, Italy
| | - Fabio Conforti
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, 20139, Italy
| | - Isabella Pallavicini
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, 20139, Italy
| | - Fabio Bedin
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, 20139, Italy
| | - Roberto Ravasio
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, 20139, Italy
| | - Enrico Massignani
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, 20139, Italy
| | - Tim C P Somervaille
- Leukaemia Biology Laboratory, Cancer Research UK Manchester Institute, The University of Manchester, Oglesby Cancer Research Centre Building, Manchester, M20 4GJ, UK
| | - Saverio Minucci
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, 20139, Italy
- Department of Biosciences, University of Milan, Milan, 20133, Italy
| | - Tiziana Bonaldi
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, 20139, Italy.
- Department of Oncology and Haemato-Oncology, University of Milan, Milan, 20133, Italy.
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49
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Liu H, Cai X, Liu J, Zhang F, He A, Li R. The MEG3 lncRNA promotes trophoblastic cell growth and invasiveness in preeclampsia by acting as a sponge for miR-21, which regulates BMPR2 levels. Eur J Histochem 2021; 65:3323. [PMID: 34818876 PMCID: PMC8636837 DOI: 10.4081/ejh.2021.3323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/19/2021] [Indexed: 12/04/2022] Open
Abstract
Preeclampsia (PE) is one of the leading causes of maternal morbidity and mortality in pregnant women. This study aimed to investigate the potential impact and regulatory mechanisms of bone morphogenetic protein receptor 2 (BMPR2) on the progression of PE. We obtained placental tissues from pregnant women with PE and normal pregnant women, and the results showed that BMPR2 was expressed at low levels in the tissue from PE women. Genetic knockdown of BMPR2 increased the proliferation and invasion of cultured trophoblast cells, whereas its overexpression reduced these characteristics. Bioinformatics analysis and luciferase reporter gene assays confirmed that BMPR2 is a direct target of miR-21. Overexpression of a miR-21 inhibitor promoted the growth and invasiveness of trophoblast cells, whereas the opposite results were observed for the miR-21 mimic. Furthermore, miR-21 was sponged by the lncRNA MEG3, and shRNA inhibition of MEG3 reduced trophoblast cell growth and invasiveness. miR-21 was upregulated in the tissues from PE women, whereas MEG3 was downregulated, and the two were negatively correlated. Collectively, this study demonstrates that the lncRNA MEG3 acts as a sponge for miR-21, which regulates BMPR2 expression and promotes trophoblast cell proliferation and invasiveness, thereby preventing the development of PE. These findings provide novel insight into a targeted therapy that could be used to treat or prevent the development of PE.
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Affiliation(s)
- Huyi Liu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou.
| | - Xiangdao Cai
- Department of Orthodontics, Stomatological Clinic, Zhongshan People's Hospital of Sun Yat-sen University, Zhongshan.
| | - Jia Liu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou.
| | - Fengxiang Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou.
| | - Andong He
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou.
| | - Ruiman Li
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou.
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50
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Mao X, Ji T, Liu A, Weng Y. ELK4-mediated lncRNA SNHG22 promotes gastric cancer progression through interacting with EZH2 and regulating miR-200c-3p/Notch1 axis. Cell Death Dis 2021; 12:957. [PMID: 34663788 PMCID: PMC8523719 DOI: 10.1038/s41419-021-04228-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 09/03/2021] [Accepted: 09/24/2021] [Indexed: 01/03/2023]
Abstract
Long non-coding RNAs (lncRNAs) play important regulatory roles in the initiation and progression of various cancers. However, the biological roles and the potential mechanisms of lncRNAs in gastric cancers remain unclear. Here, we report that the expression of lncRNA SNHG22 (small nucleolar RNA host gene 22) was significantly increased in GC (Gastric Cancer) tissues and cells, which confers poor prognosis of patients. Knockdown of SNHG22 inhibited the proliferation and invasion ability of GC cells. Moreover, we identified that the transcriptional factor, ELK4 (ETS transcription factor ELK4), could promote SNHG22 expression in GC cells. In addition, using RNA pull-down followed MS assay, we found that SNHG22 directly bound to EZH2 (enhancer of zeste 2 polycomb repressive complex 2 subunit) to suppress the expression of tumor suppressor genes. At the same time, SNHG22 sponged miR-200c-3p to increase Notch1 (notch receptor 1) expression. Taken together, our findings demonstrated the role of SNHG22 on promoting proliferation and invasion of GC cells. And we revealed a new regulatory mechanism of SNHG22 in GC cells. SNHG22 is a promising lncRNA biomarker for diagnosis and prognosis and a potential target for GC treatment.
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Affiliation(s)
- Xiaqiong Mao
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Tao Ji
- Department of Emergency, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Aiguo Liu
- Department of Emergency, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yunqi Weng
- Department of Emergency, The Affiliated Hospital of Qingdao University, Qingdao, China.
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