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Wisztorski M, Aboulouard S, Roussel L, Duhamel M, Saudemont P, Cardon T, Narducci F, Robin YM, Lemaire AS, Bertin D, Hajjaji N, Kobeissy F, Leblanc E, Fournier I, Salzet M. Fallopian tube lesions as potential precursors of early ovarian cancer: a comprehensive proteomic analysis. Cell Death Dis 2023; 14:644. [PMID: 37775701 PMCID: PMC10541450 DOI: 10.1038/s41419-023-06165-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 09/08/2023] [Accepted: 09/20/2023] [Indexed: 10/01/2023]
Abstract
Ovarian cancer is the leading cause of death from gynecologic cancer worldwide. High-grade serous carcinoma (HGSC) is the most common and deadliest subtype of ovarian cancer. While the origin of ovarian tumors is still debated, it has been suggested that HGSC originates from cells in the fallopian tube epithelium (FTE), specifically the epithelial cells in the region of the tubal-peritoneal junction. Three main lesions, p53 signatures, STILs, and STICs, have been defined based on the immunohistochemistry (IHC) pattern of p53 and Ki67 markers and the architectural alterations of the cells, using the Sectioning and Extensively Examining the Fimbriated End Protocol. In this study, we performed an in-depth proteomic analysis of these pre-neoplastic epithelial lesions guided by mass spectrometry imaging and IHC. We evaluated specific markers related to each preneoplastic lesion. The study identified specific lesion markers, such as CAVIN1, Emilin2, and FBLN5. We also used SpiderMass technology to perform a lipidomic analysis and identified the specific presence of specific lipids signature including dietary Fatty acids precursors in lesions. Our study provides new insights into the molecular mechanisms underlying the progression of ovarian cancer and confirms the fimbria origin of HGSC.
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Affiliation(s)
- Maxence Wisztorski
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
| | - Soulaimane Aboulouard
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
| | - Lucas Roussel
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
| | - Marie Duhamel
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
| | - Philippe Saudemont
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
| | - Tristan Cardon
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
| | - Fabrice Narducci
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
- Department of Gynecology Oncology, Oscar Lambret Cancer Center, 59020, Lille, France
| | - Yves-Marie Robin
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
- Department of Gynecology Oncology, Oscar Lambret Cancer Center, 59020, Lille, France
| | - Anne-Sophie Lemaire
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
- Department of Gynecology Oncology, Oscar Lambret Cancer Center, 59020, Lille, France
| | - Delphine Bertin
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
- Department of Gynecology Oncology, Oscar Lambret Cancer Center, 59020, Lille, France
| | - Nawale Hajjaji
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
- Medical Oncology Department, Oscar Lambret Cancer Center, 59020, Lille, France
| | - Firas Kobeissy
- Department of Neurobiology, Center for Neurotrauma, Multiomics & Biomarkers (CNMB), MorehouseSchool of Medicine, Atlanta, GA, 30310, USA
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Eric Leblanc
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France.
- Department of Gynecology Oncology, Oscar Lambret Cancer Center, 59020, Lille, France.
| | - Isabelle Fournier
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France.
- Institut Universitaire de France, 75000, Paris, France.
| | - Michel Salzet
- Univ.Lille, Inserm, CHU Lille, U-1192 - Laboratoire Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France.
- Institut Universitaire de France, 75000, Paris, France.
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Bryant CJ, McCool MA, Abriola L, Surovtseva YV, Baserga SJ. A high-throughput assay for directly monitoring nucleolar rRNA biogenesis. Open Biol 2022; 12:210305. [PMID: 35078352 PMCID: PMC8790372 DOI: 10.1098/rsob.210305] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Studies of the regulation of nucleolar function are critical for ascertaining clearer insights into the basic biological underpinnings of ribosome biogenesis (RB), and for future development of therapeutics to treat cancer and ribosomopathies. A number of high-throughput primary assays based on morphological alterations of the nucleolus can indirectly identify hits affecting RB. However, there is a need for a more direct high-throughput assay for a nucleolar function to further evaluate hits. Previous reports have monitored nucleolar rRNA biogenesis using 5-ethynyl uridine (5-EU) in low-throughput. We report a miniaturized, high-throughput 5-EU assay that enables specific calculation of nucleolar rRNA biogenesis inhibition, based on co-staining of the nucleolar protein fibrillarin (FBL). The assay uses two siRNA controls: a negative non-targeting siRNA control and a positive siRNA control targeting RNA Polymerase 1 (RNAP1; POLR1A), and specifically quantifies median 5-EU signal within nucleoli. Maximum nuclear 5-EU signal can also be used to monitor the effects of putative small-molecule inhibitors of RNAP1, like BMH-21, or other treatment conditions that cause FBL dispersion. We validate the 5-EU assay on 68 predominately nucleolar hits from a high-throughput primary screen, showing that 58/68 hits significantly inhibit nucleolar rRNA biogenesis. Our new method establishes direct quantification of nucleolar function in high-throughput, facilitating closer study of RB in health and disease.
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Affiliation(s)
- Carson J. Bryant
- Department of Molecular Biophysics and Biochemistry, Yale School of Medicine, 333 Cedar Street, New Haven, CT, USA
| | - Mason A. McCool
- Department of Molecular Biophysics and Biochemistry, Yale School of Medicine, 333 Cedar Street, New Haven, CT, USA
| | - Laura Abriola
- Yale Center for Molecular Discovery, Yale University, West Haven, CT, USA
| | | | - Susan J. Baserga
- Department of Molecular Biophysics and Biochemistry, Yale School of Medicine, 333 Cedar Street, New Haven, CT, USA,Department of Genetics, Yale School of Medicine, New Haven, CT, USA,Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT, USA
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Huang W, Liu Z, Rong YS. Dynamic localization of DNA topoisomerase I and its functional relevance during Drosophila development. G3-GENES GENOMES GENETICS 2021; 11:6298592. [PMID: 34544118 PMCID: PMC8661406 DOI: 10.1093/g3journal/jkab202] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 06/09/2021] [Indexed: 11/23/2022]
Abstract
DNA topoisomerase I (Top1) maintains chromatin conformation during transcription. While Top1 is not essential in simple eukaryotic organisms such as yeast, it is required for the development of multicellular organisms. In fact, tissue and cell-type-specific functions of Top1 have been suggested in the fruit fly Drosophila. A better understanding of Top1’s function in the context of development is important as Top1 inhibitors are among the most widely used anticancer drugs. As a step toward such a better understanding, we studied its localization in live cells of Drosophila. Consistent with prior results, Top1 is highly enriched at the nucleolus in transcriptionally active polyploid cells, and this enrichment responds to perturbation of transcription. In diploid cells, we uncovered evidence for Top1 foci formation at genomic regions not limited to the active rDNA locus, suggestive of novel regulation of Top1 recruitment. In the male germline, Top1 is highly enriched at the paired rDNA loci on sex chromosomes suggesting that it might participate in regulating their segregation during meiosis. Results from RNAi-mediated Top1 knockdown lend support to this hypothesis. Our study has provided one of the most comprehensive descriptions of Top1 localization during animal development.
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Affiliation(s)
- Wuqiang Huang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong Province, 510275, China.,Hengyang College of Medicine, University of South China, Hengyang 421001, China
| | - Zhiping Liu
- School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong Province, 510275, China
| | - Yikang S Rong
- Hengyang College of Medicine, University of South China, Hengyang 421001, China
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Mayank, Rani R, Singh A, Garg N, Kaur N, Singh N. Mitochondria- and nucleolus-targeted copper(i) complexes with pyrazole-linked triphenylphosphine moieties for live cell imaging. Analyst 2020; 145:83-90. [PMID: 31710323 DOI: 10.1039/c9an01513b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The labelling and imaging of mitochondria and nucleolus have attracted great attention because of the involvement of these cellular organelles in critical cellular activities. Therefore, a large number of mitochondria- or nucleolus-labelling probes have been developed throughout the world. However, in the current study, we successfully developed two pyrazole-based, copper-linked triphenylphosphine-coupled emissive metallo-complexes (C1 and C2) for the simultaneous visualization of mitochondria and nucleolus in a single run. These complexes were very inexpensive and could be synthesized by a simple one-pot multicomponent reaction scheme. The complexes were very specific, and only a small concentration of 5 μM was found to be sufficient to probe both the organelles efficiently. Additionally, even under a shorter incubation period (half hour), the fluorescence intensity from the cells was appreciable. Also, both the compounds were found to be photostable when torched with 10% of a 100 mW laser for up to 10 min. All these results indicate that both the complexes may contribute towards the future development of cell imaging tools. To the best of our knowledge, this is the first report on the development of multifunctional live cell imaging tools for simultaneous mitochondria and nucleolus imaging and within the shortest incubation time of about 30 minutes.
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Affiliation(s)
- Mayank
- Department of Chemistry, Indian Institute of Technology Ropar, India.
| | - Richa Rani
- Department of Chemistry, Indian Institute of Technology Ropar, India.
| | - Ashutosh Singh
- School of Basic Sciences, Indian Institute of Technology Mandi, India.
| | - Neha Garg
- School of Basic Sciences, Indian Institute of Technology Mandi, India.
| | - Navneet Kaur
- Department of Chemistry, Punjab University Chandigarh, India.
| | - Narinder Singh
- Department of Chemistry, Indian Institute of Technology Ropar, India.
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A Humanized Yeast Phenomic Model of Deoxycytidine Kinase to Predict Genetic Buffering of Nucleoside Analog Cytotoxicity. Genes (Basel) 2019; 10:genes10100770. [PMID: 31575041 PMCID: PMC6826991 DOI: 10.3390/genes10100770] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/17/2019] [Accepted: 09/23/2019] [Indexed: 12/22/2022] Open
Abstract
Knowledge about synthetic lethality can be applied to enhance the efficacy of anticancer therapies in individual patients harboring genetic alterations in their cancer that specifically render it vulnerable. We investigated the potential for high-resolution phenomic analysis in yeast to predict such genetic vulnerabilities by systematic, comprehensive, and quantitative assessment of drug–gene interaction for gemcitabine and cytarabine, substrates of deoxycytidine kinase that have similar molecular structures yet distinct antitumor efficacy. Human deoxycytidine kinase (dCK) was conditionally expressed in the Saccharomyces cerevisiae genomic library of knockout and knockdown (YKO/KD) strains, to globally and quantitatively characterize differential drug–gene interaction for gemcitabine and cytarabine. Pathway enrichment analysis revealed that autophagy, histone modification, chromatin remodeling, and apoptosis-related processes influence gemcitabine specifically, while drug–gene interaction specific to cytarabine was less enriched in gene ontology. Processes having influence over both drugs were DNA repair and integrity checkpoints and vesicle transport and fusion. Non-gene ontology (GO)-enriched genes were also informative. Yeast phenomic and cancer cell line pharmacogenomics data were integrated to identify yeast–human homologs with correlated differential gene expression and drug efficacy, thus providing a unique resource to predict whether differential gene expression observed in cancer genetic profiles are causal in tumor-specific responses to cytotoxic agents.
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Abstract
The rates of ribosome production by a nucleolus and of protein biosynthesis by ribosomes are tightly correlated with the rate of cell growth and proliferation. All these processes must be matched and appropriately regulated to provide optimal cell functioning. Deregulation of certain factors, including oncogenes, controlling these processes, especially ribosome biosynthesis, can lead to cell transformation. Cancer cells are characterized by intense ribosome biosynthesis which is advantageous for their growth and proliferation. On the other hand, this feature can be engaged as an anticancer strategy. Numerous nucleolar factors such as nucleolar and ribosomal proteins as well as different RNAs, in addition to their role in ribosome biosynthesis, have other functions, including those associated with cancer biology. Some of them can contribute to cell transformation and cancer development. Others, under stress evoked by different factors which often hamper function of nucleoli and thus induce nucleolar/ribosomal stress, can participate in combating cancer cells. In this sense, intentional application of therapeutic agents affecting ribosome biosynthesis can cause either release of these molecules from nucleoli or their de novo biosynthesis to mediate the activation of pathways leading to elimination of harmful cells. This review underlines the role of a nucleolus not only as a ribosome constituting apparatus but also as a hub of both positive and negative control of cancer development. The article is mainly based on original papers concerning mechanisms in which the nucleolus is implicated directly or indirectly in processes associated with neoplasia.
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Affiliation(s)
- Dariusz Stępiński
- Department of Cytophysiology, Faculty of Biology and Environmental Protection, University of Łódź, Pomorska 141/143, 90-236, Łódź, Poland.
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