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Kivrak E, Kara P. Simultaneous detection of ovarian cancer related miRNA biomarkers with carboxylated graphene oxide modified electrochemical biosensor platform. Bioelectrochemistry 2024; 161:108806. [PMID: 39244915 DOI: 10.1016/j.bioelechem.2024.108806] [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: 07/22/2024] [Revised: 08/29/2024] [Accepted: 09/02/2024] [Indexed: 09/10/2024]
Abstract
Ovarian cancer, known as "silent killer", is a gynocological cancer with high mortality that usually diagnosed in the late stages. Gold standard immunoassay technique is evaluation of CA-125 levels which is not merely specific to ovarian cancer. Therefore, there is a need for sensitive determination of more specific biomarkers. miR-200 family is RNA nucleic acids that known to be upregulated in the presence of ovarian cancer. Since diagnosis based on a single biomarker is prone to generate misleading results, it is important to develop point-of-care systems that allow diagnosis of multiple miRNAs. Herein, an electrochemical nanobiosensor platform was developed for the multiplexed and simultaneous detection of miR-200c and miR-141. Biorecognition part was constitutued of methylene blue and ferrocene labeled hairpin DNA probes immobilized onto carboxylated graphene oxide modified pencil graphite electrodes. Their hybridization with miRNAs were examined upon "signal-off" approach using Square Wave Voltammetry. The platform demonstrated a linear detection range of 0.1 pM to 10 nM for both miR-141 and miR-200c, with low detection limits of 0.029 pM and 0.026 pM, respectively. We assume that the developed biosensor platform may pave the way in early diagnosis of the disease and the development of more effective treatment strategies.
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Affiliation(s)
- Ezgi Kivrak
- Faculty of Pharmacy, Department of Analytical Chemistry, Ege University, 35100 Izmir, Bornova, Turkey; Graduate School of Natural and Applied Sciences, Department of Biomedical Technologies, Ege University, 35100 Izmir, Bornova, Turkey
| | - Pinar Kara
- Faculty of Pharmacy, Department of Analytical Chemistry, Ege University, 35100 Izmir, Bornova, Turkey.
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2
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Shi X, Facemire L, Singh S, Kumar S, Cornelison R, Liang C, Qin F, Liu A, Lin S, Tang Y, Elfman J, Manley T, Bullock T, Haverstick DM, Wu P, Li H. UBA1-CDK16 : A Sex-Specific Chimeric RNA and Its Role in Immune Sexual Dimorphism. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.13.580120. [PMID: 38405903 PMCID: PMC10888732 DOI: 10.1101/2024.02.13.580120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
RNA processing mechanisms, such as alternative splicing and RNA editing, have been recognized as critical means to expand the transcriptome. Chimeric RNAs formed by intergenic splicing provide another potential layer of RNA diversification. By analyzing a large set of RNA-Seq data and validating results in over 1,200 blood samples, we identified UBA1-CDK16 , a female-specific chimeric transcript. Intriguingly, both parental genes, are expressed in males and females. Mechanistically, UBA1-CDK16 is produced by cis-splicing between the two adjacent X-linked genes, originating from the inactive X chromosome. A female-specific chromatin loop, formed between the junction sites, facilitates the alternative splicing of its readthrough precursor. This unique chimeric transcript exhibits evolutionary conservation, evolving to be female-specific from non-human primates to humans. Furthermore, our investigation reveals that UBA1-CDK16 is enriched in the myeloid lineage and plays a regulatory role in myeloid differentiation. Notably, female COVID-19 patients who tested negative for this chimeric transcript displayed higher counts of neutrophils, highlighting its potential role in disease pathogenesis. These findings support the notion that chimeric RNAs represent a new repertoire of transcripts that can be regulated independently from the parental genes, and a new class of RNA variance with potential implications in sexual dimorphism and immune responses.
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Licaj M, Mhaidly R, Kieffer Y, Croizer H, Bonneau C, Meng A, Djerroudi L, Mujangi-Ebeka K, Hocine HR, Bourachot B, Magagna I, Leclere R, Guyonnet L, Bohec M, Guérin C, Baulande S, Kamal M, Le Tourneau C, Lecuru F, Becette V, Rouzier R, Vincent-Salomon A, Gentric G, Mechta-Grigoriou F. Residual ANTXR1+ myofibroblasts after chemotherapy inhibit anti-tumor immunity via YAP1 signaling pathway. Nat Commun 2024; 15:1312. [PMID: 38346978 PMCID: PMC10861537 DOI: 10.1038/s41467-024-45595-3] [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: 03/06/2023] [Accepted: 01/29/2024] [Indexed: 02/15/2024] Open
Abstract
Although cancer-associated fibroblast (CAF) heterogeneity is well-established, the impact of chemotherapy on CAF populations remains poorly understood. Here we address this question in high-grade serous ovarian cancer (HGSOC), in which we previously identified 4 CAF populations. While the global content in stroma increases in HGSOC after chemotherapy, the proportion of FAP+ CAF (also called CAF-S1) decreases. Still, maintenance of high residual CAF-S1 content after chemotherapy is associated with reduced CD8+ T lymphocyte density and poor patient prognosis, emphasizing the importance of CAF-S1 reduction upon treatment. Single cell analysis, spatial transcriptomics and immunohistochemistry reveal that the content in the ECM-producing ANTXR1+ CAF-S1 cluster (ECM-myCAF) is the most affected by chemotherapy. Moreover, functional assays demonstrate that ECM-myCAF isolated from HGSOC reduce CD8+ T-cell cytotoxicity through a Yes Associated Protein 1 (YAP1)-dependent mechanism. Thus, efficient inhibition after treatment of YAP1-signaling pathway in the ECM-myCAF cluster could enhance CD8+ T-cell cytotoxicity. Altogether, these data pave the way for therapy targeting YAP1 in ECM-myCAF in HGSOC.
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Affiliation(s)
- Monika Licaj
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Rana Mhaidly
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Yann Kieffer
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Hugo Croizer
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Claire Bonneau
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
- Department of Surgery, Institut Curie Hospital Group, 35 rue Dailly, 92210, Saint-Cloud, France
| | - Arnaud Meng
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Lounes Djerroudi
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
- Department of Diagnostic and Theragnostic Medicine, Institut Curie Hospital Group, 26, rue d'Ulm, F-75248, Paris, France
| | - Kevin Mujangi-Ebeka
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Hocine R Hocine
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Brigitte Bourachot
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Ilaria Magagna
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Renaud Leclere
- Department of Diagnostic and Theragnostic Medicine, Institut Curie Hospital Group, 26, rue d'Ulm, F-75248, Paris, France
| | - Lea Guyonnet
- Cytometry platform, PSL University, Institut Curie, 75005, Paris, France
| | - Mylene Bohec
- ICGex Next-Generation Sequencing Platform, PSL University, Institut Curie, 75005, Paris, France
| | - Coralie Guérin
- Cytometry platform, PSL University, Institut Curie, 75005, Paris, France
| | - Sylvain Baulande
- ICGex Next-Generation Sequencing Platform, PSL University, Institut Curie, 75005, Paris, France
| | - Maud Kamal
- Department of Drug Development and Innovation, Institut Curie Hospital Group, 26, rue d'Ulm, F-75248, Paris, France
| | - Christophe Le Tourneau
- Department of Drug Development and Innovation, Institut Curie Hospital Group, 26, rue d'Ulm, F-75248, Paris, France
- INSERM, U900, Paris-Saclay University, Institut Curie, 35 rue Dailly, 92210, Saint-Cloud, France
| | - Fabrice Lecuru
- Breast, gynecology and reconstructive surgery Department, Institut Curie Hospital Group, Paris Cité University, 26, rue d'Ulm, F-75248, Paris, France
| | - Véronique Becette
- Department of Diagnostic and Theragnostic Medicine, Institut Curie Hospital Group, 35 rue Dailly, 92210, Saint-Cloud, France
| | - Roman Rouzier
- Department of Surgery, Institut Curie Hospital Group, 35 rue Dailly, 92210, Saint-Cloud, France
| | - Anne Vincent-Salomon
- Department of Diagnostic and Theragnostic Medicine, Institut Curie Hospital Group, 26, rue d'Ulm, F-75248, Paris, France
| | - Geraldine Gentric
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France.
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France.
| | - Fatima Mechta-Grigoriou
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France.
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France.
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Ostrowska-Lesko M, Rajtak A, Moreno-Bueno G, Bobinski M. Scientific and clinical relevance of non-cellular tumor microenvironment components in ovarian cancer chemotherapy resistance. Biochim Biophys Acta Rev Cancer 2024; 1879:189036. [PMID: 38042260 DOI: 10.1016/j.bbcan.2023.189036] [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: 08/12/2023] [Revised: 11/24/2023] [Accepted: 11/25/2023] [Indexed: 12/04/2023]
Abstract
The tumor microenvironment (TME) components play a crucial role in cancer cells' resistance to chemotherapeutic agents. This phenomenon is exceptionally fundamental in patients with ovarian cancer (OvCa), whose outcome depends mainly on their response to chemotherapy. Until now, most reports have focused on the role of cellular components of the TME, while less attention has been paid to the stroma and other non-cellular elements of the TME, which may play an essential role in the therapy resistance. Inhibiting these components could help define new therapeutic targets and potentially restore chemosensitivity. The aim of the present article is both to summarize the knowledge about non-cellular components of the TME in the development of OvCa chemoresistance and to suggest targeting of non-cellular elements of the TME as a valuable strategy to overcome chemoresistance and to develop new therapeutic strategies in OvCA patients.
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Affiliation(s)
- Marta Ostrowska-Lesko
- Chair and Department of Toxicology, Medical University of Lublin, 8b Jaczewskiego Street, 20-090 Lublin, Poland.
| | - Alicja Rajtak
- 1st Chair and Department of Oncological Gynecology and Gynecology, Medical University of Lublin, Poland
| | - Gema Moreno-Bueno
- Biochemistry Department, Universidad Autónoma de Madrid (UAM), Instituto de Investigaciones Biomédicas 'Sols-Morreale' (IIBm-CISC), Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Spain; Fundación MD Anderson Internacional (FMDA), Spain.
| | - Marcin Bobinski
- 1st Chair and Department of Oncological Gynecology and Gynecology, Medical University of Lublin, Poland.
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Spada S, Luke B, Danckwardt S. The Bidirectional Link Between RNA Cleavage and Polyadenylation and Genome Stability: Recent Insights From a Systematic Screen. Front Genet 2022; 13:854907. [PMID: 35571036 PMCID: PMC9095915 DOI: 10.3389/fgene.2022.854907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/28/2022] [Indexed: 11/13/2022] Open
Abstract
The integrity of the genome is governed by multiple processes to ensure optimal survival and to prevent the inheritance of deleterious traits. While significant progress has been made to characterize components involved in the DNA Damage Response (DDR), little is known about the interplay between RNA processing and the maintenance of genome stability. Here, we describe the emerging picture of an intricate bidirectional coupling between RNA processing and genome integrity in an integrative manner. By employing insights from a recent large-scale RNAi screening involving the depletion of more than 170 components that direct (alternative) polyadenylation, we provide evidence of bidirectional crosstalk between co-transcriptional RNA 3′end processing and the DDR in a manner that optimizes genomic integrity. We provide instructive examples illustrating the wiring between the two processes and show how perturbations at one end are either compensated by buffering mechanisms at the other end, or even propel the initial insult and thereby become disease-eliciting as evidenced by various disorders.
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Affiliation(s)
- Stefano Spada
- Posttranscriptional Gene Regulation, University Medical Centre Mainz, Mainz, Germany
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Centre Mainz, Mainz, Germany
- Centre for Thrombosis and Hemostasis (CTH), University Medical Centre Mainz, Mainz, Germany
| | - Brian Luke
- Institute of Molecular Biology (IMB), Mainz, Germany
- Institute of Developmental Biology and Neurobiology (IDN), Johannes Gutenberg University, Mainz, Germany
| | - Sven Danckwardt
- Posttranscriptional Gene Regulation, University Medical Centre Mainz, Mainz, Germany
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Centre Mainz, Mainz, Germany
- Centre for Thrombosis and Hemostasis (CTH), University Medical Centre Mainz, Mainz, Germany
- German Centre for Cardiovascular Research (DZHK), Berlin, Germany
- Centre for Healthy Aging (CHA) Mainz, Mainz, Germany
- *Correspondence: Sven Danckwardt,
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Establishment and Comprehensive Analysis of Underlying microRNA-mRNA Interactive Networks in Ovarian Cancer. JOURNAL OF ONCOLOGY 2022; 2022:5120342. [PMID: 35310909 PMCID: PMC8930263 DOI: 10.1155/2022/5120342] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 02/15/2022] [Indexed: 01/09/2023]
Abstract
Background The rate of ovarian cancer (OC) is one of the highest in women's reproductive systems. An improperly expressed microRNA (miRNA) has been discovered to have a vital role in the pathophysiology of OC. However, more research into OC's miRNA-message RNA (mRNA) gene interaction network is required. Methods Firstly, the microarray data sets GSE25405 and GSE119055 from the GEO (Gene Expression Omnibus) database were downloaded and then analyzed with the GEO2R tool aiming at identifying DEMs (differential expressed miRNAs) between ovarian malignant tissue and ovarian normal tissue. The whole consistently changed miRNAs were then screened out to be candidate DEMs. For estimating underlying upstream transcription factors, FunRich was employed. miRNet was utilized to determine putative DEMs' downstream target genes. The R program was then used to do the GO annotation as well as the analysis of KEGG pathway enrichment for target genes. The PPI (protein-protein interaction), as well as the DEM-hub gene networks, were created by the Cytoscape software and STRING database. Finally, we chose the GSE74448 dataset to test the precision of hub gene expressions. Results We have screened out six (five upregulated and one downregulated) DEMs. The majority of upregulated and downregulated DEMs are likely regulated by SP1 (specificity protein 1). SP4 (s protein 4), POU2F1 (POU class 2 homeobox 1), MEF2A (myocyte-specific enhancer factor 2A), ARID3A (AT-rich interaction domain 3A), and EGR1 (early growth response 1) can regulate upregulated and downregulated DEMs. We have found 807 target genes (656 upregulated and 151 downregulated DEM), being generally enriched in focal adhesion and proteoglycans in cancer, gastric cancer, hepatocellular carcinoma, as well as breast cancer. The majority of hub genes are projected to be controlled by hsa-miR-429, hsa-miR-140-5p, hsa-miR-199a-5p, and hsa-miR-199a-3p after the DEM-hub gene network was built. VEGFA (vascular endothelial growth factor A), EZH2 (enhancer of zeste 2 polycomb repressive complex 2 subunit), and HIF1A (hypoxia inducible factor 1 subunit alpha) expressions are consistent with the GSE74448 dataset in the first 18 hub genes. Conclusion We have built an underlying miRNA-mRNA interacting network in OC, giving us unparalleled insight into the disease's diagnosis and treatment.
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Cavallari I, Ciccarese F, Sharova E, Urso L, Raimondi V, Silic-Benussi M, D’Agostino DM, Ciminale V. The miR-200 Family of microRNAs: Fine Tuners of Epithelial-Mesenchymal Transition and Circulating Cancer Biomarkers. Cancers (Basel) 2021; 13:5874. [PMID: 34884985 PMCID: PMC8656820 DOI: 10.3390/cancers13235874] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 12/13/2022] Open
Abstract
The miR-200 family of microRNAs (miRNAs) includes miR-200a, miR-200b, miR-200c, miR-141 and miR-429, five evolutionarily conserved miRNAs that are encoded in two clusters of hairpin precursors located on human chromosome 1 (miR-200b, miR-200a and miR-429) and chromosome 12 (miR-200c and miR-141). The mature -3p products of the precursors are abundantly expressed in epithelial cells, where they contribute to maintaining the epithelial phenotype by repressing expression of factors that favor the process of epithelial-to-mesenchymal transition (EMT), a key hallmark of oncogenic transformation. Extensive studies of the expression and interactions of these miRNAs with cell signaling pathways indicate that they can exert both tumor suppressor- and pro-metastatic functions, and may serve as biomarkers of epithelial cancers. This review provides a summary of the role of miR-200 family members in EMT, factors that regulate their expression, and important targets for miR-200-mediated repression that are involved in EMT. The second part of the review discusses the potential utility of circulating miR-200 family members as diagnostic/prognostic biomarkers for breast, colorectal, lung, ovarian, prostate and bladder cancers.
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Affiliation(s)
- Ilaria Cavallari
- Veneto Institute of Oncology IOV–IRCCS, 35128 Padova, Italy; (I.C.); (F.C.); (E.S.); (L.U.); (V.R.); (M.S.-B.)
| | - Francesco Ciccarese
- Veneto Institute of Oncology IOV–IRCCS, 35128 Padova, Italy; (I.C.); (F.C.); (E.S.); (L.U.); (V.R.); (M.S.-B.)
| | - Evgeniya Sharova
- Veneto Institute of Oncology IOV–IRCCS, 35128 Padova, Italy; (I.C.); (F.C.); (E.S.); (L.U.); (V.R.); (M.S.-B.)
| | - Loredana Urso
- Veneto Institute of Oncology IOV–IRCCS, 35128 Padova, Italy; (I.C.); (F.C.); (E.S.); (L.U.); (V.R.); (M.S.-B.)
- Department of Surgery, Oncology and Gastroenterology, University of Padua, 35128 Padova, Italy
| | - Vittoria Raimondi
- Veneto Institute of Oncology IOV–IRCCS, 35128 Padova, Italy; (I.C.); (F.C.); (E.S.); (L.U.); (V.R.); (M.S.-B.)
| | - Micol Silic-Benussi
- Veneto Institute of Oncology IOV–IRCCS, 35128 Padova, Italy; (I.C.); (F.C.); (E.S.); (L.U.); (V.R.); (M.S.-B.)
| | - Donna M. D’Agostino
- Veneto Institute of Oncology IOV–IRCCS, 35128 Padova, Italy; (I.C.); (F.C.); (E.S.); (L.U.); (V.R.); (M.S.-B.)
- Department of Biomedical Sciences, University of Padua, 35131 Padova, Italy
| | - Vincenzo Ciminale
- Veneto Institute of Oncology IOV–IRCCS, 35128 Padova, Italy; (I.C.); (F.C.); (E.S.); (L.U.); (V.R.); (M.S.-B.)
- Department of Surgery, Oncology and Gastroenterology, University of Padua, 35128 Padova, Italy
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The Challenges and Opportunities in the Development of MicroRNA Therapeutics: A Multidisciplinary Viewpoint. Cells 2021; 10:cells10113097. [PMID: 34831320 PMCID: PMC8619171 DOI: 10.3390/cells10113097] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/22/2021] [Accepted: 11/02/2021] [Indexed: 02/06/2023] Open
Abstract
microRNAs (miRs) are emerging as attractive therapeutic targets because of their small size, specific targetability, and critical role in disease pathogenesis. However, <20 miR targeting molecules have entered clinical trials, and none progressed to phase III. The difficulties in miR target identification, the moderate efficacy of miR inhibitors, cell type-specific delivery, and adverse outcomes have impeded the development of miR therapeutics. These hurdles are rooted in the functional complexity of miR's role in disease and sequence complementarity-dependent/-independent effects in nontarget tissues. The advances in understanding miR's role in disease, the development of efficient miR inhibitors, and innovative delivery approaches have helped resolve some of these hurdles. In this review, we provide a multidisciplinary viewpoint on the challenges and opportunities in the development of miR therapeutics.
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Liu B, Shyr Y, Liu Q. Pan-Cancer Analysis Reveals Common and Specific Relationships between Intragenic miRNAs and Their Host Genes. Biomedicines 2021; 9:1263. [PMID: 34572448 PMCID: PMC8471046 DOI: 10.3390/biomedicines9091263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/13/2021] [Accepted: 09/16/2021] [Indexed: 11/21/2022] Open
Abstract
MicroRNAs (miRNAs) are small endogenous non-coding RNAs that play important roles in regulating gene expression. Most miRNAs are located within or close to genes (host). miRNAs and their host genes have either coordinated or independent transcription. We performed a comprehensive investigation on co-transcriptional patterns of miRNAs and host genes based on 4707 patients across 21 cancer types. We found that only 11.6% of miRNA-host pairs were co-transcribed consistently and strongly across cancer types. Most miRNA-host pairs showed a strong coexpression only in some specific cancer types, demonstrating a high heterogenous pattern. For two particular types of intergenic miRNAs, readthrough and divergent miRNAs, readthrough miRNAs showed higher coexpression with their host genes than divergent ones. miRNAs located within non-coding genes had tighter co-transcription with their hosts than those located within protein-coding genes, especially exonic and junction miRNAs. A few precursor miRNAs changed their dominate form between 5' and 3' strands in different cancer types, including miR-486, miR-99b, let-7e, miR-125a, let-7g, miR-339, miR-26a, miR-16, and miR-218, whereas only two miRNAs with multiple host genes switched their co-transcriptional partner in different cancer types (miR-219a-1 with SLC39A7/HSD17B8 and miR-3615 with RAB37/SLC9A3R1). miRNAs generated from distinct precursors (such as miR-125b from miR-125b-1 or miR-125b-2) were more likely to have cancer-dependent main contributors. miRNAs and hosts were less co-expressed in KIRC than other cancer types, possibly due to its frequent VHL mutations. Our findings shed new light on miRNA biogenesis and cancer diagnosis and treatments.
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Affiliation(s)
- Baohong Liu
- Key Laboratory of Veterinary Parasitology of Gansu Province, State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
| | - Yu Shyr
- Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA;
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Qi Liu
- Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA;
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
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Mercier C, Brazeau T, Lamoureux J, Boisvert E, Robillard S, Breton V, Paré M, Guay A, Lizotte F, Despatis MA, Geraldes P. Diabetes Impaired Ischemia-Induced PDGF (Platelet-Derived Growth Factor) Signaling Actions and Vessel Formation Through the Activation of Scr Homology 2-Containing Phosphatase-1. Arterioscler Thromb Vasc Biol 2021; 41:2469-2482. [PMID: 34320834 DOI: 10.1161/atvbaha.121.316638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Objective Critical limb ischemia is a major complication of diabetes characterized by insufficient collateral vessel development and proper growth factor signaling unresponsiveness. Although mainly deactivated by hypoxia, phosphatases are important players in the deregulation of proangiogenetic pathways. Previously, SHP-1 (Scr homology 2-containing phosphatase-1) was found to be associated with the downregulation of growth factor actions in the diabetic muscle. Thus, we aimed to gain further understanding of the impact of SHP-1 on smooth muscle cell (SMC) function under hypoxic and diabetic conditions. Approach and Results Despite being inactivated under hypoxic conditions, high glucose level exposure sustained SHP-1 phosphatase activity in SMC and increased its interaction with PDGFR (platelet-derived growth factor receptor)-β, thus reducing PDGF proangiogenic actions. Overexpression of an inactive form of SHP-1 fully restored PDGF-induced proliferation, migration, and signaling pathways in SMC exposed to high glucose and hypoxia. Nondiabetic and diabetic mice with deletion of SHP-1 specifically in SMC were generated. Ligation of the femoral artery was performed, and blood flow was measured for 4 weeks. Blood flow reperfusion, vascular density and maturation, and limb survival were all improved while vascular apoptosis was attenuated in diabetic SMC-specific SHP-1 null mice as compared to diabetic mice. Conclusions Diabetes and high glucose level exposure maintained SHP-1 activity preventing hypoxia-induced PDGF actions in SMC. Specific deletion of SHP-1 in SMC partially restored blood flow reperfusion in the diabetic ischemic limb. Therefore, local modulation of SHP-1 activity in SMC could represent a potential therapeutic avenue to improve the proangiogenic properties of SMC under ischemia and diabetes.
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MESH Headings
- Angiogenesis Inducing Agents/pharmacology
- Animals
- Blood Glucose/metabolism
- Case-Control Studies
- Cattle
- Cell Hypoxia
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Cells, Cultured
- Diabetes Mellitus, Experimental/enzymology
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/physiopathology
- Diabetic Angiopathies/enzymology
- Diabetic Angiopathies/genetics
- Diabetic Angiopathies/physiopathology
- Enzyme Activation
- Hindlimb/blood supply
- Humans
- Ischemia/enzymology
- Ischemia/physiopathology
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/enzymology
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/enzymology
- Myocytes, Smooth Muscle/pathology
- Neovascularization, Physiologic/drug effects
- Platelet-Derived Growth Factor/pharmacology
- Protein Tyrosine Phosphatase, Non-Receptor Type 6/genetics
- Protein Tyrosine Phosphatase, Non-Receptor Type 6/metabolism
- Signal Transduction
- Mice
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Affiliation(s)
- Clément Mercier
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke (C.M., T.B., J.L., E.B., S.R., V.B., M.P., A.G., F.L., P.G.), Université de Sherbrooke, Québec, Canada
| | - Tristan Brazeau
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke (C.M., T.B., J.L., E.B., S.R., V.B., M.P., A.G., F.L., P.G.), Université de Sherbrooke, Québec, Canada
| | - Jérémy Lamoureux
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke (C.M., T.B., J.L., E.B., S.R., V.B., M.P., A.G., F.L., P.G.), Université de Sherbrooke, Québec, Canada
| | - Elizabeth Boisvert
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke (C.M., T.B., J.L., E.B., S.R., V.B., M.P., A.G., F.L., P.G.), Université de Sherbrooke, Québec, Canada
| | - Stéphanie Robillard
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke (C.M., T.B., J.L., E.B., S.R., V.B., M.P., A.G., F.L., P.G.), Université de Sherbrooke, Québec, Canada
| | - Valérie Breton
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke (C.M., T.B., J.L., E.B., S.R., V.B., M.P., A.G., F.L., P.G.), Université de Sherbrooke, Québec, Canada
| | - Martin Paré
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke (C.M., T.B., J.L., E.B., S.R., V.B., M.P., A.G., F.L., P.G.), Université de Sherbrooke, Québec, Canada
| | - Andréanne Guay
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke (C.M., T.B., J.L., E.B., S.R., V.B., M.P., A.G., F.L., P.G.), Université de Sherbrooke, Québec, Canada
| | - Farah Lizotte
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke (C.M., T.B., J.L., E.B., S.R., V.B., M.P., A.G., F.L., P.G.), Université de Sherbrooke, Québec, Canada
| | | | - Pedro Geraldes
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke (C.M., T.B., J.L., E.B., S.R., V.B., M.P., A.G., F.L., P.G.), Université de Sherbrooke, Québec, Canada
- Division of Endocrinology, Department of Medicine (P.G.), Université de Sherbrooke, Québec, Canada
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11
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Dutertre M, Sfaxi R, Vagner S. Reciprocal Links between Pre-messenger RNA 3'-End Processing and Genome Stability. Trends Biochem Sci 2021; 46:579-594. [PMID: 33653631 DOI: 10.1016/j.tibs.2021.01.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 01/11/2021] [Accepted: 01/22/2021] [Indexed: 02/07/2023]
Abstract
The 3'-end processing of most pre-messenger RNAs (pre-mRNAs) involves RNA cleavage and polyadenylation and is coupled to transcription termination. In both yeast and human cells, pre-mRNA 3'-end cleavage is globally inhibited by DNA damage. Recently, further links between pre-mRNA 3'-end processing and the control of genome stability have been uncovered, as reviewed here. Upon DNA damage, various genes related to the DNA damage response (DDR) escape 3'-end processing inhibition or are regulated through alternative polyadenylation (APA). Conversely, various pre-mRNA 3'-end processing factors prevent genome instability and are found at sites of DNA damage. Finally, the reciprocal link between pre-mRNA 3'-end processing and genome stability control seems important because it is conserved in evolution and involved in disease development.
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Affiliation(s)
- Martin Dutertre
- Institut Curie, Université PSL, CNRS UMR3348, INSERM U1278, 91400 Orsay, France; Université Paris-Saclay, CNRS UMR3348, INSERM U1278, 91400 Orsay, France; Equipe Labellisée Ligue Nationale Contre le Cancer.
| | - Rym Sfaxi
- Institut Curie, Université PSL, CNRS UMR3348, INSERM U1278, 91400 Orsay, France; Université Paris-Saclay, CNRS UMR3348, INSERM U1278, 91400 Orsay, France; Equipe Labellisée Ligue Nationale Contre le Cancer
| | - Stéphan Vagner
- Institut Curie, Université PSL, CNRS UMR3348, INSERM U1278, 91400 Orsay, France; Université Paris-Saclay, CNRS UMR3348, INSERM U1278, 91400 Orsay, France; Equipe Labellisée Ligue Nationale Contre le Cancer.
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12
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Gravemeyer J, Lange A, Ritter C, Spassova I, Song L, Picard D, Remke M, Horny K, Sriram A, Gambichler T, Schadendorf D, Hoffmann D, Becker JC. Classical and Variant Merkel Cell Carcinoma Cell Lines Display Different Degrees of Neuroendocrine Differentiation and Epithelial-Mesenchymal Transition. J Invest Dermatol 2021; 141:1675-1686.e4. [PMID: 33600825 DOI: 10.1016/j.jid.2021.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 01/13/2021] [Accepted: 01/28/2021] [Indexed: 02/06/2023]
Abstract
Merkel cell carcinoma (MCC) is an aggressive neuroendocrine skin cancer characterized by high invasiveness, early metastases, and high mortality. Because of the lack of suitable animal models, most functional studies are performed using cell lines, some of which lack classical neuroendocrine growth characteristics. Here, we scrutinized the molecular characteristics of classical MCC and variant MCC cell lines by differential gene expression and the respective epigenetic regulation by microRNAs and DNA methylation. Cutaneous squamous cell carcinoma cell lines were used for comparison. The most striking observation was a lower expression of epithelial-mesenchymal transition-related genes in classical MCCs, which was accompanied by higher expression of the epithelial-mesenchymal transition-regulating microRNA clusters miR-200c-141 and miR-183-96-182 and hypomethylation of the respective microRNA loci. Experimental expression of the MCC lineage factor ATOH1 in variant MCCs resulted in an increased expression of miR-200c-141 paralleled by a reduction of genes associated with epithelial-mesenchymal transition, thus demonstrating a connection between neuroendocrine characteristics and the lack of epithelial-mesenchymal transition. Together, our observations not only reinforce concerns about the use of variant MCCs as proper MCC representatives, but also suggest variant MCCs as cells locked in an intermediate state between neuroendocrine and epithelial differentiation.
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Affiliation(s)
- Jan Gravemeyer
- Group of Translational Skin Cancer Research (TSCR), University Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK) & German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Anja Lange
- Bioinformatics and Computational Biophysics, University Duisburg-Essen, Essen, Germany
| | - Cathrin Ritter
- Group of Translational Skin Cancer Research (TSCR), University Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK) & German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ivelina Spassova
- Group of Translational Skin Cancer Research (TSCR), University Duisburg-Essen, Essen, Germany
| | - Lina Song
- Group of Translational Skin Cancer Research (TSCR), University Duisburg-Essen, Essen, Germany
| | - Daniel Picard
- German Cancer Consortium (DKTK) & German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Marc Remke
- German Cancer Consortium (DKTK) & German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Kai Horny
- Group of Translational Skin Cancer Research (TSCR), University Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK) & German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ashwin Sriram
- Group of Translational Skin Cancer Research (TSCR), University Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK) & German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Thilo Gambichler
- Skin Cancer Center, Department for Dermatology, Ruhr-University Bochum, Bochum, Germany
| | - Dirk Schadendorf
- Department of Dermatology, University Hospital Essen, Essen, Germany
| | - Daniel Hoffmann
- Bioinformatics and Computational Biophysics, University Duisburg-Essen, Essen, Germany
| | - Jürgen C Becker
- Group of Translational Skin Cancer Research (TSCR), University Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK) & German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Dermatology, University Hospital Essen, Essen, Germany.
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13
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Erkeland SJ, Stavast CJ, Schilperoord-Vermeulen J, Dal Collo G, Van de Werken HJG, Leon LG, Van Hoven-Beijen A, Van Zuijen I, Mueller YM, Bindels EM, De Ridder D, Kappers-Klunne MC, Van Lom K, Van der Velden VHJ, Langerak AW. The miR-200c/141-ZEB2-TGFβ axis is aberrant in human T-cell prolymphocytic leukemia. Haematologica 2021; 107:143-153. [PMID: 33596640 PMCID: PMC8719092 DOI: 10.3324/haematol.2020.263756] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Indexed: 11/29/2022] Open
Abstract
T-cell prolymphocytic leukemia (T-PLL) is mostly characterized by aberrant expansion of small- to medium-sized prolymphocytes with a mature post-thymic phenotype, high aggressiveness of the disease and poor prognosis. However, T-PLL is more heterogeneous with a wide range of clinical, morphological, and molecular features, which occasionally impedes the diagnosis. We hypothesized that T-PLL consists of phenotypic and/or genotypic subgroups that may explain the heterogeneity of the disease. Multi-dimensional immuno-phenotyping and gene expression profiling did not reveal clear T-PLL subgroups, and no clear T-cell receptor a or b CDR3 skewing was observed between different T-PLL cases. We revealed that the expression of microRNA (miRNA) is aberrant and often heterogeneous in T-PLL. We identified 35 miRNA that were aberrantly expressed in T-PLL with miR-200c/141 as the most differentially expressed cluster. High miR- 200c/141 and miR-181a/181b expression was significantly correlated with increased white blood cell counts and poor survival. Furthermore, we found that overexpression of miR-200c/141 correlated with downregulation of their targets ZEB2 and TGFbR3 and aberrant TGFb1- induced phosphorylated SMAD2 (p-SMAD2) and p-SMAD3, indicating that the TGFb pathway is affected in T-PLL. Our results thus highlight the potential role for aberrantly expressed oncogenic miRNA in T-PLL and pave the way for new therapeutic targets in this disease.
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Affiliation(s)
- Stefan J Erkeland
- Department of Immunology, Erasmus University Medical Center, Rotterdam.
| | | | | | - Giada Dal Collo
- Department of Immunology, Erasmus University Medical Center, Rotterdam
| | - Harmen J G Van de Werken
- Department of Immunology, Erasmus University Medical Center, Rotterdam, the Netherlands; Cancer Computational Biology Center, Erasmus MC Cancer Institute, University Medical Center, Dr. Molewaterplein 40, 3015 GD, Rotterdam
| | - Leticia G Leon
- Department of Immunology, Erasmus University Medical Center, Rotterdam
| | | | - Iris Van Zuijen
- Department of Immunology, Erasmus University Medical Center, Rotterdam
| | - Yvonne M Mueller
- Department of Immunology, Erasmus University Medical Center, Rotterdam
| | - Eric M Bindels
- Department of Hematology, Erasmus University Medical Center, Rotterdam
| | | | | | - Kirsten Van Lom
- Department of Hematology, Erasmus University Medical Center, Rotterdam
| | | | - Anton W Langerak
- Department of Immunology, Erasmus University Medical Center, Rotterdam.
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14
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Stiffness increases with myofibroblast content and collagen density in mesenchymal high grade serous ovarian cancer. Sci Rep 2021; 11:4219. [PMID: 33603134 PMCID: PMC7892556 DOI: 10.1038/s41598-021-83685-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 02/05/2021] [Indexed: 01/31/2023] Open
Abstract
Women diagnosed with high-grade serous ovarian cancers (HGSOC) are still likely to exhibit a bad prognosis, particularly when suffering from HGSOC of the Mesenchymal molecular subtype (50% cases). These tumors show a desmoplastic reaction with accumulation of extracellular matrix proteins and high content of cancer-associated fibroblasts. Using patient-derived xenograft mouse models of Mesenchymal and Non-Mesenchymal HGSOC, we show here that HGSOC exhibit distinct stiffness depending on their molecular subtype. Indeed, tumor stiffness strongly correlates with tumor growth in Mesenchymal HGSOC, while Non-Mesenchymal tumors remain soft. Moreover, we observe that tumor stiffening is associated with high stromal content, collagen network remodeling, and MAPK/MEK pathway activation. Furthermore, tumor stiffness accompanies a glycolytic metabolic switch in the epithelial compartment, as expected based on Warburg's effect, but also in stromal cells. This effect is restricted to the central part of stiff Mesenchymal tumors. Indeed, stiff Mesenchymal tumors remain softer at the periphery than at the core, with stromal cells secreting high levels of collagens and showing an OXPHOS metabolism. Thus, our study suggests that tumor stiffness could be at the crossroad of three major processes, i.e. matrix remodeling, MEK activation and stromal metabolic switch that might explain at least in part Mesenchymal HGSOC aggressiveness.
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15
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Choi JM, Kim SG, Yang HJ, Lim JH, Cho NY, Kim WH, Kim JS, Jung HC. Helicobacter pylori Eradication Can Reverse the Methylation-Associated Regulation of miR-200a/b in Gastric Carcinogenesis. Gut Liver 2020; 14:571-580. [PMID: 31887809 PMCID: PMC7492500 DOI: 10.5009/gnl19299] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/21/2019] [Accepted: 10/23/2019] [Indexed: 01/09/2023] Open
Abstract
Background/Aims Epigenetic change is one of the mechanisms that regulates the expression of microRNAs (miRNAs) and is known to play a role in Helicobacter pylori-associated gastric carcinogenesis. We aimed to evaluate the epigenetic changes of miR-200a/b in H. pylori-associated gastric carcinogenesis and restoration after eradication. Methods The expression and methylation levels of miR-200a/b were evaluated in gastric cancer (GC) cell lines, human gastric mucosa of H. pylori-negative and -positive controls, and H. pylori-positive GC patients. Next, the changes in the expression and methylation levels of miR-200a/b were compared between H. pylori-eradication and H. pylori-persistence groups at 6 months. Real-time reverse transcription-polymerase chain reaction was conducted to investigate the miRNA expression levels, and MethyLight was performed to assess the methylation levels. Results In the GC cell lines, the level of miR-200a/b methylation decreased and the level of expression increased after demethylation. In the human gastric mucosa, the miR-200a/b methylation levels increased in the following group order: H. pylori-negative control group, H. pylori-positive control group, and H. pylori-positive GC group. Conversely, the miR-200a/b expression levels decreased in the same order. In the H. pylori-persistence group, no significant changes were observed in the methylation and expression levels of miR-200a/b after 6 months, whereas the level of methylation decreased and the level of expression of miR-200a/b increased significantly 6 months in the H. pylori-eradication group. Conclusions Epigenetic alterations of miR-200a/b may be implicated in H. pylori-induced gastric carcinogenesis. This field defect for cancerization is suggested to be improved by H. pylori eradication.
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Affiliation(s)
- Ji Min Choi
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Sang Gyun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Hyo-Joon Yang
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Joo Hyun Lim
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Nam-Yun Cho
- Laboratory of Epigenetics, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Woo Ho Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Joo Sung Kim
- Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Hyun Chae Jung
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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16
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Kasyanov ED, Merkulova TV, Kibitov AO, Mazo GE. Genetics of Bipolar Spectrum Disorders: Focus on Family Studies Using Whole Exome Sequencing. RUSS J GENET+ 2020. [DOI: 10.1134/s1022795420070054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Kieffer Y, Bonneau C, Popova T, Rouzier R, Stern MH, Mechta-Grigoriou F. Clinical Interest of Combining Transcriptomic and Genomic Signatures in High-Grade Serous Ovarian Cancer. Front Genet 2020; 11:219. [PMID: 32256521 PMCID: PMC7089941 DOI: 10.3389/fgene.2020.00219] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 02/24/2020] [Indexed: 01/08/2023] Open
Abstract
High-grade serous ovarian cancer is one of the deadliest gynecological malignancies and remains a clinical challenge. There is a critical need to effectively define patient stratification in a clinical setting. In this study, we address this question and determine the optimal number of molecular subgroups for ovarian cancer patients. By studying several independent patient cohorts, we observed that classifying high-grade serous ovarian tumors into four molecular subgroups using a transcriptomic-based approach did not reproducibly predict patient survival. In contrast, classifying these tumors into only two molecular subgroups, fibrosis and non-fibrosis, could reliably inform on patient survival. In addition, we found complementarity between transcriptomic data and the genomic signature for homologous recombination deficiency (HRD) that helped in defining prognosis of ovarian cancer patients. We also established that the transcriptomic and genomic signatures underlined independent biological processes and defined four different risk populations. Thus, combining genomic and transcriptomic information appears as the most appropriate stratification method to reliably subgroup high-grade serous ovarian cancer patients. This method can easily be transferred into the clinical setting.
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Affiliation(s)
- Yann Kieffer
- Institut Curie, Stress and Cancer Laboratory, Equipe labelisée Ligue Nationale Contre le Cancer, PSL University, Paris, France.,Inserm, U830, Paris, France
| | - Claire Bonneau
- Institut Curie, Stress and Cancer Laboratory, Equipe labelisée Ligue Nationale Contre le Cancer, PSL University, Paris, France.,Inserm, U830, Paris, France
| | - Tatiana Popova
- Inserm, U830, Paris, France.,Genomics and Biology of Hereditary Cancers, Institut Curie, Paris, France
| | - Roman Rouzier
- Department of Surgery, Institut Curie Hospital Group, René Huguenin Hospital, Saint-Cloud, France
| | - Marc-Henri Stern
- Inserm, U830, Paris, France.,Genomics and Biology of Hereditary Cancers, Institut Curie, Paris, France
| | - Fatima Mechta-Grigoriou
- Institut Curie, Stress and Cancer Laboratory, Equipe labelisée Ligue Nationale Contre le Cancer, PSL University, Paris, France.,Inserm, U830, Paris, France
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18
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Kozak J, Jonak K, Maciejewski R. The function of miR-200 family in oxidative stress response evoked in cancer chemotherapy and radiotherapy. Biomed Pharmacother 2020; 125:110037. [PMID: 32187964 DOI: 10.1016/j.biopha.2020.110037] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/14/2020] [Accepted: 02/17/2020] [Indexed: 12/14/2022] Open
Abstract
Since the beginning of the discovery of microRNAs (miRs), these molecules have attracted highly progressive attention due to their powerful regulatory roles in a broad spectrum of biological processes, including proliferation, differentiation, apoptosis and carcinogenesis. With regard to carcinogenesis, the miRs regulatory potency has been associated with cancer onset, progression, metastasis, diagnosis and therapeutic response. In this review we discuss the impact of miR-200 family on drug resistance development during anti-cancer therapy. Developing resistance to chemotherapeutic drugs as well as radiotherapy are major clinical obstacles in the successful therapeutic strategies to cancer treatment. Acquired cancer chemoresistance is a multifactorial phenomenon involving such factors as tumor type, tumor stage, cellular reactive oxygen species (ROS) level or ROS-responsive miRs profile. ROS level could influence the miRs expression level, which changes the cellular profile of the content of miRs. Such significant changes in the cellular miRs profile generate subsequent biological effects through the regulation of their target genes. This review outlines the interactions between ROS and miR-200 family in different kinds of cancers in response to chemotherapy.
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Affiliation(s)
- Joanna Kozak
- Department of Normal Anatomy, Medical University of Lublin, 20-090 Lublin, Poland.
| | - Katarzyna Jonak
- Interfaculty Centre for Didactics, Department of Foreign Languages, Medical University of Lublin, 20-081 Lublin, Poland
| | - Ryszard Maciejewski
- Department of Normal Anatomy, Medical University of Lublin, 20-090 Lublin, Poland
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19
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Sylvestre M, Tarte K, Roulois D. Epigenetic mechanisms driving tumor supportive microenvironment differentiation and function: a role in cancer therapy? Epigenomics 2019; 12:157-169. [PMID: 31849241 DOI: 10.2217/epi-2019-0165] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The tumor microenvironment (TME) plays a central role in tumor development and drug resistance. Within TME, the stromal cell subset, called cancer-associated fibroblasts, is a heterogeneous population originating from poorly characterized precursors. Since cancer-associated fibroblasts do not acquire somatic mutations, other mechanisms like epigenetic regulation, could be involved in the development of these cells and in the acquisition of tumor supportive phenotypes. Moreover, such epigenetic modulations have been correlated to the emergence of an immunosuppressive microenvironment facilitating tumor evasion. These findings underline the need to deepen our knowledge on epigenetic mechanisms driving TME development and function, and to understand the impact of epigenetic drugs that could be used in future to target both tumor cells and their TME.
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Affiliation(s)
- Marvin Sylvestre
- UMR _S 1236, Université de Rennes 1, INSERM, Établissement français du sang (EFS) Bretagne, Rennes, France
| | - Karin Tarte
- UMR _S 1236, Université de Rennes 1, INSERM, Établissement français du sang (EFS) Bretagne, Rennes, France.,Laboratoire Suivi Immunologique des Thérapeutiques Innovantes (SITI), Centre Hospitalier Universitaires de Rennes, Rennes, France
| | - David Roulois
- UMR _S 1236, Université de Rennes 1, INSERM, Établissement français du sang (EFS) Bretagne, Rennes, France.,Niches & Epigenetics of Tumors from Cancéropole Grand Ouest, France
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20
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Barresi V, Cosentini I, Scuderi C, Napoli S, Di Bella V, Spampinato G, Condorelli DF. Fusion Transcripts of Adjacent Genes: New Insights into the World of Human Complex Transcripts in Cancer. Int J Mol Sci 2019; 20:ijms20215252. [PMID: 31652751 PMCID: PMC6862657 DOI: 10.3390/ijms20215252] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/18/2019] [Accepted: 10/20/2019] [Indexed: 12/12/2022] Open
Abstract
The awareness of genome complexity brought a radical approach to the study of transcriptome, opening eyes to single RNAs generated from two or more adjacent genes according to the present consensus. This kind of transcript was thought to originate only from chromosomal rearrangements, but the discovery of readthrough transcription opens the doors to a new world of fusion RNAs. In the last years many possible intergenic cis-splicing mechanisms have been proposed, unveiling the origins of transcripts that contain some exons of both the upstream and downstream genes. In some cases, alternative mechanisms, such as trans-splicing and transcriptional slippage, have been proposed. Five databases, containing validated and predicted Fusion Transcripts of Adjacent Genes (FuTAGs), are available for the scientific community. A comparative analysis revealed that two of them contain the majority of the results. A complete analysis of the more widely characterized FuTAGs is provided in this review, including their expression pattern in normal tissues and in cancer. Gene structure, intergenic splicing patterns and exon junction sequences have been determined and here reported for well-characterized FuTAGs. The available functional data and the possible roles in cancer progression are discussed.
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Affiliation(s)
- Vincenza Barresi
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, 95123 Catania, Italy.
| | - Ilaria Cosentini
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, 95123 Catania, Italy.
| | - Chiara Scuderi
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, 95123 Catania, Italy.
| | - Salvatore Napoli
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, 95123 Catania, Italy.
| | - Virginia Di Bella
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, 95123 Catania, Italy.
| | - Giorgia Spampinato
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, 95123 Catania, Italy.
| | - Daniele Filippo Condorelli
- Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, 95123 Catania, Italy.
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21
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Chwalenia K, Qin F, Singh S, Li H. A cell-based splicing reporter system to identify regulators of cis-splicing between adjacent genes. Nucleic Acids Res 2019; 47:e24. [PMID: 30590765 PMCID: PMC6393300 DOI: 10.1093/nar/gky1288] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 11/14/2018] [Accepted: 12/14/2018] [Indexed: 12/14/2022] Open
Abstract
Chimeric RNAs generated by cis-splicing between adjacent genes (cis-SAGe) are increasingly recognized as a widespread phenomenon. These chimeric messenger RNAs are present in normal human cells, and are also detected in various cancers. The mechanisms for how this group of chimeras is formed are not yet clear, in part due to the lack of a tractable system for their experimental investigation. Here we developed a fast, easy and versatile cell-based reporter system to identify regulators of cis-SAGe. The reporter, consisting of four main cassettes, simultaneously measures the effects of a candidate regulator on cis-SAGe and canonical splicing. Using this cell-based assay, we screened 102 candidate factors involved in RNA pol II cleavage and termination, elongation, splicing, alternative splicing and R-loop formation. We discovered that two factors, SRRM1 and SF3B1, affect not only cis-SAGe chimeras, but also other types of chimeric RNAs in a genome-wide fashion. This system can be used for studying trans-acting factors and cis-acting sequence elements and factors, as well as for screening small molecule inhibitors.
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Affiliation(s)
- Katarzyna Chwalenia
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Fujun Qin
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Sandeep Singh
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Hui Li
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA.,Department of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA.,School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China
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22
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PML-Regulated Mitochondrial Metabolism Enhances Chemosensitivity in Human Ovarian Cancers. Cell Metab 2019; 29:156-173.e10. [PMID: 30244973 PMCID: PMC6331342 DOI: 10.1016/j.cmet.2018.09.002] [Citation(s) in RCA: 177] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 07/11/2018] [Accepted: 08/31/2018] [Indexed: 12/28/2022]
Abstract
High-grade serous ovarian cancer (HGSOC) remains an unmet medical challenge. Here, we unravel an unanticipated metabolic heterogeneity in HGSOC. By combining proteomic, metabolomic, and bioergenetic analyses, we identify two molecular subgroups, low- and high-OXPHOS. While low-OXPHOS exhibit a glycolytic metabolism, high-OXPHOS HGSOCs rely on oxidative phosphorylation, supported by glutamine and fatty acid oxidation, and show chronic oxidative stress. We identify an important role for the PML-PGC-1α axis in the metabolic features of high-OXPHOS HGSOC. In high-OXPHOS tumors, chronic oxidative stress promotes aggregation of PML-nuclear bodies, resulting in activation of the transcriptional co-activator PGC-1α. Active PGC-1α increases synthesis of electron transport chain complexes, thereby promoting mitochondrial respiration. Importantly, high-OXPHOS HGSOCs exhibit increased response to conventional chemotherapies, in which increased oxidative stress, PML, and potentially ferroptosis play key functions. Collectively, our data establish a stress-mediated PML-PGC-1α-dependent mechanism that promotes OXPHOS metabolism and chemosensitivity in ovarian cancer.
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Tsetsarkin KA, Maximova OA, Liu G, Kenney H, Teterina N, Bloom ME, Grabowski JM, Mlera L, Nagata BM, Moore I, Martens C, Amaro-Carambot E, Lamirande EW, Whitehead SS, Pletnev AG. Routes of Zika virus dissemination in the testis and epididymis of immunodeficient mice. Nat Commun 2018; 9:5350. [PMID: 30559387 PMCID: PMC6297220 DOI: 10.1038/s41467-018-07782-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 11/24/2018] [Indexed: 02/06/2023] Open
Abstract
Sexual transmission and persistence of Zika virus (ZIKV) in the male reproductive tract (MRT) poses new challenges for controlling virus outbreaks and developing live-attenuated vaccines. To elucidate routes of ZIKV dissemination in the MRT, we here generate microRNA-targeted ZIKV clones that lose the infectivity for (1) the cells inside seminiferous tubules of the testis, or (2) epithelial cells of the epididymis. We trace ZIKV dissemination in the MRT using an established mouse model of ZIKV pathogenesis. Our results support a model in which ZIKV infects the testis via a hematogenous route, while infection of the epididymis can occur via two routes: (1) hematogenous/lymphogenous and (2) excurrent testicular. Co-targeting of the ZIKV genome with brain-, testis-, and epididymis-specific microRNAs restricts virus infection of these organs, but does not affect virus-induced protective immunity in mice and monkeys. These defined alterations of ZIKV tropism represent a rational design of a safe live-attenuated ZIKV vaccine.
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Affiliation(s)
- Konstantin A Tsetsarkin
- Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, 20892-3203, MD, USA
| | - Olga A Maximova
- Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, 20892-3203, MD, USA
| | - Guangping Liu
- Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, 20892-3203, MD, USA
| | - Heather Kenney
- Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, 20892-3203, MD, USA
| | - Natalia Teterina
- Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, 20892-3203, MD, USA
| | - Marshall E Bloom
- Biology of Vector-Borne Viruses Section, Laboratory of Virology, Rocky Mountain Laboratories, NIAID, NIH, Hamilton, 59840, MT, USA
| | - Jeffrey M Grabowski
- Biology of Vector-Borne Viruses Section, Laboratory of Virology, Rocky Mountain Laboratories, NIAID, NIH, Hamilton, 59840, MT, USA
| | - Luwanika Mlera
- Biology of Vector-Borne Viruses Section, Laboratory of Virology, Rocky Mountain Laboratories, NIAID, NIH, Hamilton, 59840, MT, USA
| | - Bianca M Nagata
- Infectious Disease and Pathogenesis Section, Comparative Medicine Branch, NIAID, NIH, Rockville, 20892, MD, USA
| | - Ian Moore
- Infectious Disease and Pathogenesis Section, Comparative Medicine Branch, NIAID, NIH, Rockville, 20892, MD, USA
| | - Craig Martens
- Research Technologies (RT) Section, RT Branch, Rocky Mountain Laboratories, NIAID, NIH, Hamilton, 58940, MT, USA
| | | | | | | | - Alexander G Pletnev
- Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, 20892-3203, MD, USA.
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Suresh PK. Breast Cancer Heterogeneity: A focus on Epigenetics and In Vitro 3D Model Systems. CELL JOURNAL 2018; 20:302-311. [PMID: 29845782 PMCID: PMC6004987 DOI: 10.22074/cellj.2018.5442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 11/30/2017] [Indexed: 12/17/2022]
Abstract
Breast cancer (BC) is a widely prevalent form of neoplasia in women with fairly alarming mortality statistics. This aspect may
be attributed, in part, to the current spatial and temporal heterogeneity-based limitations in therapies with possible recurrence
of this tumour at primary and/or secondary sites. Such an extensive phenotypic heterogeneity in breast cancer is unlikely to be
adequately or completely comprehended by an immuno-histopathology-based classification alone. This finding has warranted
research and development in the area of microarray-based methods (i.e. transcriptomic and proteomic chips) for an improved
molecular classification of this complex and heterogeneous tumour. Further, since epigenetics can also be an important
determinant in terms of diagnosis, prognosis and therapy, this review provides an insight into the molecular portrait of BC in
genetic and epigenetic terms. Specifically, the roles of characteristic DNA and histone-based modifications as well as mi-RNA-
based alterations have been discussed with specific examples. Also, their involvement in epithelial mesenchymal transition
(EMT) processes in cancer stem cells (CSCs) has been outlined. Last but not least, the salient aspects and the advantages
of ex vivo/in vitro 3D model systems in recapitulating several aspects of BC tumour (particularly the architecture as well as
the apico-basal polarity) are mentioned. This review hopes to provide not only an improved and updated understanding of
the epigenetics of breast cancer, but to also elaborate on tumour model development/refinement, biomarker evaluation, drug
resistance and test of individual drugs or drug combinations and drug delivery systems.
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Affiliation(s)
- Palamadai Krishnan Suresh
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu.Electronic Address:
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Abstract
High-grade serous ovarian cancers (HGSOC) have been subdivided into molecular subtypes. The mesenchymal HGSOC subgroup, defined by stromal-related gene signatures, is invariably associated with poor patient survival. We demonstrate that stroma exerts a key function in mesenchymal HGSOC. We highlight stromal heterogeneity in HGSOC by identifying four subsets of carcinoma-associated fibroblasts (CAF-S1-4). Mesenchymal HGSOC show high content in CAF-S1 fibroblasts, which exhibit immunosuppressive functions by increasing attraction, survival, and differentiation of CD25+FOXP3+ T lymphocytes. The beta isoform of the CXCL12 chemokine (CXCL12β) specifically accumulates in the immunosuppressive CAF-S1 subset through a miR-141/200a dependent-mechanism. Moreover, CXCL12β expression in CAF-S1 cells plays a crucial role in CAF-S1 immunosuppressive activity and is a reliable prognosis factor in HGSOC, in contrast to CXCL12α. Thus, our data highlight the differential regulation of the CXCL12α and CXCL12β isoforms in HGSOC, and reveal a CXCL12β-associated stromal heterogeneity and immunosuppressive environment in mesenchymal HGSOC.
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Song Y, Lu S, Zhao J, Wang L. Nuclear Receptor SHP: A Critical Regulator of miRNA and lncRNA Expression and Function. NUCLEAR RECEPTOR RESEARCH 2017; 4:101312. [PMID: 30148159 PMCID: PMC6103530 DOI: 10.11131/2017/101312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Small heterodimer partner (SHP, NR0B2) is identified as a unique orphan nuclear receptor that acts as a transcriptional repressor. SHP plays a crucial role in the control of various physiological processes and in several diseases by regulating the expression of disease-specific genes. Non-coding RNAs (ncRNAs), including long noncoding RNAs (lncRNAs) and microRNAs (miRNAs), are encoded of RNAs that are transcribed but not translated into proteins, which are involved in diverse developmental and cellular processes in eukaryotic organisms. Research during the past decade has identified factors participating in the regulation of ncRNAs biogenesis and function. In this review, we summarize recent findings demonstrating a critical role of SHP as a transcriptional regulator of ncRNAs expression and function.
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Affiliation(s)
- Yongfeng Song
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, 250021, China
- Department of Physiology and Neurobiology, and the Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269, USA
| | - Shan Lu
- Genesis Biotechnology, Trenton, NJ 08619, USA
| | - Jiajun Zhao
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, 250021, China
| | - Li Wang
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, 250021, China
- Department of Physiology and Neurobiology, and the Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269, USA
- Veterans Affairs Connecticut Healthcare System, West Haven, CT 06516, USA
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06520, USA
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
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27
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Davies JMS, Cillard J, Friguet B, Cadenas E, Cadet J, Cayce R, Fishmann A, Liao D, Bulteau AL, Derbré F, Rébillard A, Burstein S, Hirsch E, Kloner RA, Jakowec M, Petzinger G, Sauce D, Sennlaub F, Limon I, Ursini F, Maiorino M, Economides C, Pike CJ, Cohen P, Salvayre AN, Halliday MR, Lundquist AJ, Jakowec NA, Mechta-Grigoriou F, Mericskay M, Mariani J, Li Z, Huang D, Grant E, Forman HJ, Finch CE, Sun PY, Pomatto LCD, Agbulut O, Warburton D, Neri C, Rouis M, Cillard P, Capeau J, Rosenbaum J, Davies KJA. The Oxygen Paradox, the French Paradox, and age-related diseases. GeroScience 2017; 39:499-550. [PMID: 29270905 PMCID: PMC5745211 DOI: 10.1007/s11357-017-0002-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 11/09/2017] [Indexed: 02/06/2023] Open
Abstract
A paradox is a seemingly absurd or impossible concept, proposition, or theory that is often difficult to understand or explain, sometimes apparently self-contradictory, and yet ultimately correct or true. How is it possible, for example, that oxygen "a toxic environmental poison" could be also indispensable for life (Beckman and Ames Physiol Rev 78(2):547-81, 1998; Stadtman and Berlett Chem Res Toxicol 10(5):485-94, 1997)?: the so-called Oxygen Paradox (Davies and Ursini 1995; Davies Biochem Soc Symp 61:1-31, 1995). How can French people apparently disregard the rule that high dietary intakes of cholesterol and saturated fats (e.g., cheese and paté) will result in an early death from cardiovascular diseases (Renaud and de Lorgeril Lancet 339(8808):1523-6, 1992; Catalgol et al. Front Pharmacol 3:141, 2012; Eisenberg et al. Nat Med 22(12):1428-1438, 2016)?: the so-called, French Paradox. Doubtless, the truth is not a duality and epistemological bias probably generates apparently self-contradictory conclusions. Perhaps nowhere in biology are there so many apparently contradictory views, and even experimental results, affecting human physiology and pathology as in the fields of free radicals and oxidative stress, antioxidants, foods and drinks, and dietary recommendations; this is particularly true when issues such as disease-susceptibility or avoidance, "healthspan," "lifespan," and ageing are involved. Consider, for example, the apparently paradoxical observation that treatment with low doses of a substance that is toxic at high concentrations may actually induce transient adaptations that protect against a subsequent exposure to the same (or similar) toxin. This particular paradox is now mechanistically explained as "Adaptive Homeostasis" (Davies Mol Asp Med 49:1-7, 2016; Pomatto et al. 2017a; Lomeli et al. Clin Sci (Lond) 131(21):2573-2599, 2017; Pomatto and Davies 2017); the non-damaging process by which an apparent toxicant can activate biological signal transduction pathways to increase expression of protective genes, by mechanisms that are completely different from those by which the same agent induces toxicity at high concentrations. In this review, we explore the influences and effects of paradoxes such as the Oxygen Paradox and the French Paradox on the etiology, progression, and outcomes of many of the major human age-related diseases, as well as the basic biological phenomenon of ageing itself.
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Affiliation(s)
- Joanna M S Davies
- The Medical Group, Internal Medicine, Rheumatology & Osteoporosis, Dermatology, Pulmonology, Ophthalmology, and Cardiology; the Hospital of the Good Samaritan, Los Angeles, CA, 90017, USA
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center, University of Southern California, Los Angeles, CA, 90089-0191, USA
| | - Josiane Cillard
- Lab de Biologie Cellulaire et Végétale, Faculté de Pharmacie, Université de Rennes, 35043, Rennes Cedex, France
| | - Bertrand Friguet
- Institut de Biologie Paris-Seine (IBPS), UMR CNRS 8256, Biological Adaptation and Ageing, Sorbonne Universités, UPMC Univ Paris 06, 75005, Paris, France
- INSERM ERL U1164, 75005, Paris, France
| | - Enrique Cadenas
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center, University of Southern California, Los Angeles, CA, 90089-0191, USA
- School of Pharmacy, University of Southern California, Los Angeles, CA, 90089-9121, USA
- Department of Biochemistry & Molecular Medicine, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, 90033, USA
| | - Jean Cadet
- Département de Médecine nucléaire et Radiobiologie, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, J1H 5N4, Canada
| | - Rachael Cayce
- The Medical Group, Internal Medicine, Rheumatology & Osteoporosis, Dermatology, Pulmonology, Ophthalmology, and Cardiology; the Hospital of the Good Samaritan, Los Angeles, CA, 90017, USA
| | - Andrew Fishmann
- The Medical Group, Internal Medicine, Rheumatology & Osteoporosis, Dermatology, Pulmonology, Ophthalmology, and Cardiology; the Hospital of the Good Samaritan, Los Angeles, CA, 90017, USA
| | - David Liao
- The Medical Group, Internal Medicine, Rheumatology & Osteoporosis, Dermatology, Pulmonology, Ophthalmology, and Cardiology; the Hospital of the Good Samaritan, Los Angeles, CA, 90017, USA
| | - Anne-Laure Bulteau
- Institut de Génomique Fonctionnelle de Lyon,ENS de Lyon, CNRS, 69364, Lyon Cedex 07, France
| | - Frédéric Derbré
- Laboratory for Movement, Sport and Health Sciences-EA 1274, M2S, Université de Rennes 2-ENS, Bruz, 35170, Rennes, France
| | - Amélie Rébillard
- Laboratory for Movement, Sport and Health Sciences-EA 1274, M2S, Université de Rennes 2-ENS, Bruz, 35170, Rennes, France
| | - Steven Burstein
- The Medical Group, Internal Medicine, Rheumatology & Osteoporosis, Dermatology, Pulmonology, Ophthalmology, and Cardiology; the Hospital of the Good Samaritan, Los Angeles, CA, 90017, USA
| | - Etienne Hirsch
- INSERM UMR 1127-CNRS UMR 7225, Institut du cerveau et de la moelle épinière-ICM Thérapeutique Expérimentale de la Maladie de Parkinson, Université Pierre et Marie Curie, 75651, Paris Cedex 13, France
| | - Robert A Kloner
- Huntington Medical Research Institutes, Pasadena, CA, 91105, USA
| | - Michael Jakowec
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Giselle Petzinger
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Delphine Sauce
- Chronic infections and Immune ageing, INSERM U1135, Hopital Pitie-Salpetriere, Pierre et Marie Curie University, 75013, Paris, France
| | | | - Isabelle Limon
- Institut de Biologie Paris-Seine (IBPS), UMR CNRS 8256, Biological Adaptation and Ageing, Sorbonne Universités, UPMC Univ Paris 06, 75005, Paris, France
| | - Fulvio Ursini
- Department of Molecular Medicine, University of Padova, 35121, Padova, Italy
| | - Matilde Maiorino
- Department of Molecular Medicine, University of Padova, 35121, Padova, Italy
| | - Christina Economides
- Los Angeles Cardiology Associates, Hospital of the Good Samaritan, Los Angeles, CA, 90017, USA
| | - Christian J Pike
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center, University of Southern California, Los Angeles, CA, 90089-0191, USA
- Division of Neurobiology, Department of Biological Sciences of the Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA, 90089-0191, USA
| | - Pinchas Cohen
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center, University of Southern California, Los Angeles, CA, 90089-0191, USA
- Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, 90033, USA
| | - Anne Negre Salvayre
- Lipid peroxidation, Signalling and Vascular Diseases INSERM U1048, 31432, Toulouse Cedex 4, France
| | - Matthew R Halliday
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Adam J Lundquist
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Nicolaus A Jakowec
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | | | - Mathias Mericskay
- Laboratoire de Signalisation et Physiopathologie Cardiovasculaire-Inserm UMR-S 1180, Faculté de Pharmacie, Université Paris-Sud, 92296 Châtenay-Malabry, Paris, France
| | - Jean Mariani
- Institut de Biologie Paris-Seine (IBPS), UMR CNRS 8256, Biological Adaptation and Ageing, Sorbonne Universités, UPMC Univ Paris 06, 75005, Paris, France
| | - Zhenlin Li
- Institut de Biologie Paris-Seine (IBPS), UMR CNRS 8256, Biological Adaptation and Ageing, Sorbonne Universités, UPMC Univ Paris 06, 75005, Paris, France
- INSERM ERL U1164, 75005, Paris, France
| | - David Huang
- Department of Radiation Oncology, Hospital of the Good Samaritan, Los Angeles, CA, 90017, USA
| | - Ellsworth Grant
- Department of Oncology & Hematology, Hospital of the Good Samaritan, Los Angeles, CA, 90017, USA
| | - Henry J Forman
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center, University of Southern California, Los Angeles, CA, 90089-0191, USA
| | - Caleb E Finch
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center, University of Southern California, Los Angeles, CA, 90089-0191, USA
- Los Angeles Cardiology Associates, Hospital of the Good Samaritan, Los Angeles, CA, 90017, USA
- Division of Molecular & Computational Biology, Department of Biological Sciences of the Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA, 90089-0191, USA
| | - Patrick Y Sun
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center, University of Southern California, Los Angeles, CA, 90089-0191, USA
- Division of Molecular & Computational Biology, Department of Biological Sciences of the Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA, 90089-0191, USA
| | - Laura C D Pomatto
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center, University of Southern California, Los Angeles, CA, 90089-0191, USA
- Division of Molecular & Computational Biology, Department of Biological Sciences of the Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA, 90089-0191, USA
| | - Onnik Agbulut
- Institut de Biologie Paris-Seine (IBPS), UMR CNRS 8256, Biological Adaptation and Ageing, Sorbonne Universités, UPMC Univ Paris 06, 75005, Paris, France
| | - David Warburton
- Children's Hospital of Los Angeles, Developmental Biology, Regenerative Medicine and Stem Cell Therapeutics program and the Center for Environmental Impact on Global Health Across the Lifespan at The Saban Research Institute, Los Angeles, CA, 90027, USA
- Department of Pediatrics, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, 90033, USA
| | - Christian Neri
- Institut de Biologie Paris-Seine (IBPS), UMR CNRS 8256, Biological Adaptation and Ageing, Sorbonne Universités, UPMC Univ Paris 06, 75005, Paris, France
| | - Mustapha Rouis
- Institut de Biologie Paris-Seine (IBPS), UMR CNRS 8256, Biological Adaptation and Ageing, Sorbonne Universités, UPMC Univ Paris 06, 75005, Paris, France
- INSERM ERL U1164, 75005, Paris, France
| | - Pierre Cillard
- Lab de Biologie Cellulaire et Végétale, Faculté de Pharmacie, Université de Rennes, 35043, Rennes Cedex, France
| | - Jacqueline Capeau
- DR Saint-Antoine UMR_S938, UPMC, Inserm Faculté de Médecine, Université Pierre et Marie Curie, 75012, Paris, France
| | - Jean Rosenbaum
- Scientific Service of the Embassy of France in the USA, Consulate General of France in Los Angeles, Los Angeles, CA, 90025, USA
| | - Kelvin J A Davies
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology Center, University of Southern California, Los Angeles, CA, 90089-0191, USA.
- Department of Biochemistry & Molecular Medicine, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, 90033, USA.
- Division of Molecular & Computational Biology, Department of Biological Sciences of the Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA, 90089-0191, USA.
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Chwalenia K, Qin F, Singh S, Tangtrongstittikul P, Li H. Connections between Transcription Downstream of Genes and cis-SAGe Chimeric RNA. Genes (Basel) 2017; 8:genes8110338. [PMID: 29165374 PMCID: PMC5704251 DOI: 10.3390/genes8110338] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 11/10/2017] [Accepted: 11/16/2017] [Indexed: 02/03/2023] Open
Abstract
cis-Splicing between adjacent genes (cis-SAGe) is being recognized as one way to produce chimeric fusion RNAs. However, its detail mechanism is not clear. Recent study revealed induction of transcriptions downstream of genes (DoGs) under osmotic stress. Here, we investigated the influence of osmotic stress on cis-SAGe chimeric RNAs and their connection to DoGs. We found, the absence of induction of at least some cis-SAGe fusions and/or their corresponding DoGs at early time point(s). In fact, these DoGs and their cis-SAGe fusions are inversely correlated. This negative correlation was changed to positive at a later time point. These results suggest a direct competition between the two categories of transcripts when total pool of readthrough transcripts is limited at an early time point. At a later time point, DoGs and corresponding cis-SAGe fusions are both induced, indicating that total readthrough transcripts become more abundant. Finally, we observed overall enhancement of cis-SAGe chimeric RNAs in KCl-treated samples by RNA-Seq analysis.
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Affiliation(s)
- Katarzyna Chwalenia
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA.
| | - Fujun Qin
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA.
| | - Sandeep Singh
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA.
| | | | - Hui Li
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA.
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA.
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29
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Asada R, Umeda M, Adachi A, Senmatsu S, Abe T, Iwasaki H, Ohta K, Hoffman CS, Hirota K. Recruitment and delivery of the fission yeast Rst2 transcription factor via a local genome structure counteracts repression by Tup1-family corepressors. Nucleic Acids Res 2017; 45:9361-9371. [PMID: 28934464 PMCID: PMC5766161 DOI: 10.1093/nar/gkx555] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 06/14/2017] [Indexed: 12/12/2022] Open
Abstract
Transcription factors (TFs) determine the transcription activity of target genes and play a central role in controlling the transcription in response to various environmental stresses. Three dimensional genome structures such as local loops play a fundamental role in the regulation of transcription, although the link between such structures and the regulation of TF binding to cis-regulatory elements remains to be elucidated. Here, we show that during transcriptional activation of the fission yeast fbp1 gene, binding of Rst2 (a critical C2H2 zinc-finger TF) is mediated by a local loop structure. During fbp1 activation, Rst2 is first recruited to upstream-activating sequence 1 (UAS1), then it subsequently binds to UAS2 (a critical cis-regulatory site located approximately 600 base pairs downstream of UAS1) through a loop structure that brings UAS1 and UAS2 into spatially close proximity. Tup11/12 (the Tup-family corepressors) suppress direct binding of Rst2 to UAS2, but this suppression is counteracted by the recruitment of Rst2 at UAS1 and following delivery to UAS2 through a loop structure. These data demonstrate a previously unappreciated mechanism for the recruitment and expansion of TF-DNA interactions within a promoter mediated by local three-dimensional genome structures and for timely TF-binding via counteractive regulation by the Tup-family corepressors.
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Affiliation(s)
- Ryuta Asada
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Minamiosawa 1-1, Hachioji-shi, Tokyo 192-0397, Japan
| | - Miki Umeda
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Minamiosawa 1-1, Hachioji-shi, Tokyo 192-0397, Japan
| | - Akira Adachi
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Minamiosawa 1-1, Hachioji-shi, Tokyo 192-0397, Japan
| | - Satoshi Senmatsu
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Minamiosawa 1-1, Hachioji-shi, Tokyo 192-0397, Japan
| | - Takuya Abe
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Minamiosawa 1-1, Hachioji-shi, Tokyo 192-0397, Japan
| | - Hiroshi Iwasaki
- Cell Biology Unit, Institute of Innovative Research, Tokyo Institute of Technology M6-11, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Kunihiro Ohta
- Department of Life Sciences, The University of Tokyo, Meguro-ku, Tokyo 153-8902, Japan.,Universal Biology Institute, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | | | - Kouji Hirota
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Minamiosawa 1-1, Hachioji-shi, Tokyo 192-0397, Japan
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30
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Pigeon P, Wang Y, Top S, Najlaoui F, Garcia Alvarez MC, Bignon J, McGlinchey MJ, Jaouen G. A New Series of Succinimido-ferrociphenols and Related Heterocyclic Species Induce Strong Antiproliferative Effects, Especially against Ovarian Cancer Cells Resistant to Cisplatin. J Med Chem 2017; 60:8358-8368. [DOI: 10.1021/acs.jmedchem.7b00743] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Pascal Pigeon
- PSL, Chimie ParisTech, 11 Rue Pierre et Marie Curie, F-75005 Paris, France
- UPMC
Univ Paris 6, UMR 8232 CNRS, IPCM, Sorbonne Universités, Place Jussieu, F-75005 Paris, France
| | - Yong Wang
- PSL, Chimie ParisTech, 11 Rue Pierre et Marie Curie, F-75005 Paris, France
- UPMC
Univ Paris 6, UMR 8232 CNRS, IPCM, Sorbonne Universités, Place Jussieu, F-75005 Paris, France
| | - Siden Top
- UPMC
Univ Paris 6, UMR 8232 CNRS, IPCM, Sorbonne Universités, Place Jussieu, F-75005 Paris, France
| | - Feten Najlaoui
- UPMC
Univ Paris 6, UMR 8232 CNRS, IPCM, Sorbonne Universités, Place Jussieu, F-75005 Paris, France
| | - Maria Concepcion Garcia Alvarez
- Centre
de Recherche de Gif, Institut de Chimie des Substances Naturelles,
UPR 2301 du CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Jérôme Bignon
- Centre
de Recherche de Gif, Institut de Chimie des Substances Naturelles,
UPR 2301 du CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Michael J. McGlinchey
- UCD
School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Gérard Jaouen
- PSL, Chimie ParisTech, 11 Rue Pierre et Marie Curie, F-75005 Paris, France
- UPMC
Univ Paris 6, UMR 8232 CNRS, IPCM, Sorbonne Universités, Place Jussieu, F-75005 Paris, France
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31
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miRNA-200c-3p is crucial in acute respiratory distress syndrome. Cell Discov 2017; 3:17021. [PMID: 28690868 PMCID: PMC5485385 DOI: 10.1038/celldisc.2017.21] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 06/01/2017] [Indexed: 02/07/2023] Open
Abstract
Influenza infection and pneumonia are known to cause much of their mortality by inducing acute respiratory distress syndrome (ARDS), which is the most severe form of acute lung injury (ALI). Angiotensin-converting enzyme 2 (ACE2), which is a negative regulator of angiotensin II in the renin–angiotensin system, has been reported to have a crucial role in ALI. Downregulation of ACE2 is always associated with the ALI or ARDS induced by avian influenza virus, severe acute respiratory syndrome-coronavirus, respiratory syncytial virus and sepsis. However, the molecular mechanism of the decreased expression of ACE2 in ALI is unclear. Here we show that avian influenza virus H5N1 induced the upregulation of miR-200c-3p, which was then demonstrated to target the 3′-untranslated region of ACE2. Then, we found that nonstructural protein 1 and viral RNA of H5N1 contributed to the induction of miR-200c-3p during viral infection. Additionally, the synthetic analog of viral double-stranded RNA (poly (I:C)), bacterial lipopolysaccharide and lipoteichoic acid can all markedly increase the expression of miR-200c-3p in a nuclear factor-κB-dependent manner. Furthermore, markedly elevated plasma levels of miR-200c-3p were observed in severe pneumonia patients. The inhibition of miR-200c-3p ameliorated the ALI induced by H5N1 virus infection in vivo, indicating a potential therapeutic target. Therefore, we identify a shared mechanism of viral and bacterial lung infection-induced ALI/ARDS via nuclear factor-κB-dependent upregulation of miR-200c-3p to reduce ACE2 levels, which leads increased angiotensin II levels and subsequently causes lung injury.
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32
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Chwalenia K, Facemire L, Li H. Chimeric RNAs in cancer and normal physiology. WILEY INTERDISCIPLINARY REVIEWS-RNA 2017; 8. [DOI: 10.1002/wrna.1427] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 04/27/2017] [Accepted: 04/28/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Katarzyna Chwalenia
- Department of Pathology, School of Medicine; University of Virginia; Charlottesville VA USA
| | - Loryn Facemire
- Department of Pathology, School of Medicine; University of Virginia; Charlottesville VA USA
| | - Hui Li
- Department of Pathology, School of Medicine; University of Virginia; Charlottesville VA USA
- Department of Biochemistry and Molecular Genetics, School of Medicine; University of Virginia; Charlottesville VA USA
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33
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Ding L, Yu LL, Han N, Zhang BT. miR-141 promotes colon cancer cell proliferation by inhibiting MAP2K4. Oncol Lett 2017; 13:1665-1671. [PMID: 28454307 PMCID: PMC5403415 DOI: 10.3892/ol.2017.5653] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 09/09/2016] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNAs or miRs) can function as tumor-suppressor or oncogenic genes. Upregulation of miRNA-141 has been frequently observed in colorectal cancer (CRC) samples. The experimentally observed targets of miR-141 include the tumor-suppressor gene mitogen-activated protein kinase kinase 4 (MAP2K4). The aim of the present study was to investigate the role of miR-141 in the proliferation of colonic cancer. Western blotting, immunohistochemistry and reverse transcription-quantitative polymerase chain reaction were used to detect the expression levels of miR-141 and MAP2K4 in colonic adenocarcinoma (CAC) and adjacent non-cancerous (NC) tissue samples, as well as in human CAC cell lines (HT29, T94 and LS174). MTT assay was used to investigate the proliferation and apoptosis of these three cell lines. The expression levels of miR-141 were significantly upregulated in clinical samples of CAC, compared with adjacent NC tissues. By contrast, MAP2K4 was downregulated in CAC. The in vitro assays demonstrated that overexpression of miR-141 resulted in cell proliferation of CAC by inhibiting MAP2K4 activity. Our study suggests that targeting the miR-141-MAP2K4 signaling pathway may represent a novel approach for the treatment of CRC.
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Affiliation(s)
- Lei Ding
- Department of Radiology, The Third Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Li-Li Yu
- Department of Radiology, The Third Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Ning Han
- Department of Radiology, The Third Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Bu-Tian Zhang
- Department of Radiology, The Third Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
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34
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Senfter D, Madlener S, Krupitza G, Mader RM. The microRNA-200 family: still much to discover. Biomol Concepts 2016; 7:311-319. [DOI: 10.1515/bmc-2016-0020] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 09/23/2016] [Indexed: 12/14/2022] Open
Abstract
AbstractIn the last decade, microRNAs (miRs or miRNAs) became of great interest in cancer research due to their multifunctional and active regulation in a variety of vital cellular processes. In this review, we discuss the miR-200 family, which is composed of five members (miR-141, miR-200a/200b/200c and miR-429). Although being among the best investigated miRNAs in the field, there are still many open issues. Here, we describe the potential role of miR-200 as prognostic and/or predictive biomarker, its influence on motility and cell migration as well as its role in epithelial to mesenchymal transition (EMT) and metastasis formation in different tumour types. Recent studies also demonstrated the influence of miR-200 on drug resistance and described a correlation between miR-200 expression levels and overall survival of patients. Despite intense research in this field, the full role of the miR-200 family in cancer progression and metastasis is not completely understood and seems to differ between different tumour types and different cellular backgrounds. To elucidate these differences further, a finer characterisation of the role of the individual miRNA-200 family members is currently under investigation.
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Affiliation(s)
- Daniel Senfter
- 1Department of Paediatrics, Molecular Neuro-Oncology Research Unit, Medical University of Vienna, A-1090 Vienna, Austria
| | - Sibylle Madlener
- 1Department of Paediatrics, Molecular Neuro-Oncology Research Unit, Medical University of Vienna, A-1090 Vienna, Austria
| | - Georg Krupitza
- 2Institute of Clinical Pathology, Comprehensive Cancer Center of the Medical University of Vienna, A-1090 Vienna, Austria
| | - Robert M. Mader
- 3Department of Medicine I, Comprehensive Cancer Center of the Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria
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35
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Murtha M, Esteller M. Extraordinary Cancer Epigenomics: Thinking Outside the Classical Coding and Promoter Box. Trends Cancer 2016; 2:572-584. [DOI: 10.1016/j.trecan.2016.08.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 08/17/2016] [Accepted: 08/23/2016] [Indexed: 12/23/2022]
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