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Gaponova AV, Deneka AY, Beck TN, Liu H, Andrianov G, Nikonova AS, Nicolas E, Einarson MB, Golemis EA, Serebriiskii IG. Identification of evolutionarily conserved DNA damage response genes that alter sensitivity to cisplatin. Oncotarget 2017; 8:19156-19171. [PMID: 27863405 PMCID: PMC5386675 DOI: 10.18632/oncotarget.13353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 10/27/2016] [Indexed: 01/08/2023] Open
Abstract
Ovarian, head and neck, and other cancers are commonly treated with cisplatin and other DNA damaging cytotoxic agents. Altered DNA damage response (DDR) contributes to resistance of these tumors to chemotherapies, some targeted therapies, and radiation. DDR involves multiple protein complexes and signaling pathways, some of which are evolutionarily ancient and involve protein orthologs conserved from yeast to humans. To identify new regulators of cisplatin-resistance in human tumors, we integrated high throughput and curated datasets describing yeast genes that regulate sensitivity to cisplatin and/or ionizing radiation. Next, we clustered highly validated genes based on chemogenomic profiling, and then mapped orthologs of these genes in expanded genomic networks for multiple metazoans, including humans. This approach identified an enriched candidate set of genes involved in the regulation of resistance to radiation and/or cisplatin in humans. Direct functional assessment of selected candidate genes using RNA interference confirmed their activity in influencing cisplatin resistance, degree of γH2AX focus formation and ATR phosphorylation, in ovarian and head and neck cancer cell lines, suggesting impaired DDR signaling as the driving mechanism. This work enlarges the set of genes that may contribute to chemotherapy resistance and provides a new contextual resource for interpreting next generation sequencing (NGS) genomic profiling of tumors.
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Affiliation(s)
- Anna V Gaponova
- Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, PA 19111, USA.,Department of Biochemistry and Biotechnology, Kazan Federal University, Kazan 420008, Russian Federation
| | - Alexander Y Deneka
- Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, PA 19111, USA.,Department of Biochemistry and Biotechnology, Kazan Federal University, Kazan 420008, Russian Federation
| | - Tim N Beck
- Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, PA 19111, USA.,Department of Biochemistry & Molecular Biology, Program in Molecular and Cell Biology and Genetics, Drexel University College of Medicine, Philadelphia, PA 19129, USA
| | - Hanqing Liu
- Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, PA 19111, USA.,Department of Pharmaceutics, Jiangsu University, School of Pharmacy, Jingkou District Zhenjiang, Jiangsu 212013, China
| | - Gregory Andrianov
- Department of Biochemistry and Biotechnology, Kazan Federal University, Kazan 420008, Russian Federation
| | - Anna S Nikonova
- Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
| | - Emmanuelle Nicolas
- Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
| | - Margret B Einarson
- Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
| | - Erica A Golemis
- Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
| | - Ilya G Serebriiskii
- Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, PA 19111, USA.,Department of Biochemistry and Biotechnology, Kazan Federal University, Kazan 420008, Russian Federation
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Bozaquel-Morais BL, Madeira JB, Venâncio TM, Pacheco-Rosa T, Masuda CA, Montero-Lomeli M. A Chemogenomic Screen Reveals Novel Snf1p/AMPK Independent Regulators of Acetyl-CoA Carboxylase. PLoS One 2017; 12:e0169682. [PMID: 28076367 PMCID: PMC5226726 DOI: 10.1371/journal.pone.0169682] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 12/20/2016] [Indexed: 12/26/2022] Open
Abstract
Acetyl-CoA carboxylase (Acc1p) is a key enzyme in fatty acid biosynthesis and is essential for cell viability. To discover new regulators of its activity, we screened a Saccharomyces cerevisiae deletion library for increased sensitivity to soraphen A, a potent Acc1p inhibitor. The hits identified in the screen (118 hits) were filtered using a chemical-phenotype map to exclude those associated with pleiotropic drug resistance. This enabled the identification of 82 ORFs that are genetic interactors of Acc1p. The main functional clusters represented by these hits were “transcriptional regulation”, “protein post-translational modifications” and “lipid metabolism”. Further investigation of the “transcriptional regulation” cluster revealed that soraphen A sensitivity is poorly correlated with ACC1 transcript levels. We also studied the three top unknown ORFs that affected soraphen A sensitivity: SOR1 (YDL129W), SOR2 (YIL092W) and SOR3 (YJR039W). Since the C18/C16 ratio of lipid acyl lengths reflects Acc1p activity levels, we evaluated this ratio in the three mutants. Deletion of SOR2 and SOR3 led to reduced acyl lengths, suggesting that Acc1p is indeed down-regulated in these strains. Also, these mutants showed no differences in Snf1p/AMPK activation status and deletion of SNF1 in these backgrounds did not revert soraphen A sensitivity completely. Furthermore, plasmid maintenance was reduced in sor2Δ strain and this trait was shared with 18 other soraphen A sensitive hits. In summary, our screen uncovered novel Acc1p Snf1p/AMPK-independent regulators.
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Affiliation(s)
- Bruno L. Bozaquel-Morais
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Juliana B. Madeira
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Thiago M. Venâncio
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Thiago Pacheco-Rosa
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Claudio A. Masuda
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Monica Montero-Lomeli
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- * E-mail:
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3
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Graziano S, Gullì M, Maestri E, Marmiroli N. The global effect of exposing bakers' yeast to 5-fluoruracil and nystatin; a view to Toxichip. CHEMOSPHERE 2016; 145:470-479. [PMID: 26694798 DOI: 10.1016/j.chemosphere.2015.11.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 10/07/2015] [Accepted: 11/15/2015] [Indexed: 06/05/2023]
Abstract
A genome-wide screen of a haploid deletion library of bakers' yeast (Saccharomyces cerevisiae) was conducted to document the phenotypic and transcriptional impact of exposure to each of the two pharmaceutical products 5-fluorouracil (an anti-tumor agent) and nystatin (an anti-fungal agent). The combined data set was handled by applying a systems biology perspective. A Gene Ontology analysis identified functional categories previously characterized as likely targets for both compounds. Induced transcription profiles were well correlated in yeast and human HepG2 cells. The identified molecular targets for both compounds were used to suggest a small set of human orthologues as appropriate for testing on human material. The yeast system developed here (denoted "Toxichip") has likely utility for identifying biomarkers relevant for health and environmental risk assessment applications required as part of the development process for novel pharmaceuticals.
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Affiliation(s)
- Sara Graziano
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Mariolina Gullì
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Elena Maestri
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Nelson Marmiroli
- Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy.
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Anantharaman V, Iyer LM, Aravind L. Ter-dependent stress response systems: novel pathways related to metal sensing, production of a nucleoside-like metabolite, and DNA-processing. MOLECULAR BIOSYSTEMS 2013; 8:3142-65. [PMID: 23044854 DOI: 10.1039/c2mb25239b] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The mode of action of the bacterial ter cluster and TelA genes, implicated in natural resistance to tellurite and other xenobiotic toxic compounds, pore-forming colicins and several bacteriophages, has remained enigmatic for almost two decades. Using comparative genomics, sequence-profile searches and structural analysis we present evidence that the ter gene products and their functional partners constitute previously underappreciated, chemical stress response and anti-viral defense systems of bacteria. Based on contextual information from conserved gene neighborhoods and domain architectures, we show that the ter gene products and TelA lie at the center of membrane-linked metal recognition complexes with regulatory ramifications encompassing phosphorylation-dependent signal transduction, RNA-dependent regulation, biosynthesis of nucleoside-like metabolites and DNA processing. Our analysis suggests that the multiple metal-binding and non-binding TerD paralogs and TerC are likely to constitute a membrane-associated complex, which might also include TerB and TerY, and feature several, distinct metal-binding sites. Versions of the TerB domain might also bind small molecule ligands and link the TerD paralog-TerC complex to biosynthetic modules comprising phosphoribosyltransferases (PRTases), ATP grasp amidoligases, TIM-barrel carbon-carbon lyases, and HAD phosphoesterases, which are predicted to synthesize novel nucleoside-like molecules. One of the PRTases is also likely to interact with RNA by means of its Pelota/Ribosomal protein L7AE-like domain. The von Willebrand factor A domain protein, TerY, is predicted to be part of a distinct phosphorylation switch, coupling a protein kinase and a PP2C phosphatase. We show, based on the evidence from numerous conserved gene neighborhoods and domain architectures, that both the TerB and TelA domains have been linked to diverse lipid-interaction domains, such as two novel PH-like and the Coq4 domains, in different bacteria, and are likely to comprise membrane-associated sensory complexes that might additionally contain periplasmic binding-protein-II and OmpA domains. We also show that the TerD and TerB domains and the TerY-associated phosphorylation system are functionally linked to many distinct DNA-processing complexes, which feature proteins with SWI2/SNF2 and RecQ-like helicases, multiple AAA+ ATPases, McrC-N-terminal domain proteins, several restriction endonuclease fold DNases, DNA-binding domains and a type-VII/Esx-like system, which is at the center of a predicted DNA transfer apparatus. These DNA-processing modules and associated genes are predicted to be involved in restriction or suicidal action in response to phages and possibly repairing xenobiotic-induced DNA damage. In some eukaryotes, certain components of the ter system appear to be recruited to function in conjunction with the ubiquitin system and calcium-signaling pathways.
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Affiliation(s)
- Vivek Anantharaman
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland 20894, USA
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Bellieny-Rabelo D, Oliveira AEA, Venancio TM. Impact of whole-genome and tandem duplications in the expansion and functional diversification of the F-box family in legumes (Fabaceae). PLoS One 2013; 8:e55127. [PMID: 23390519 PMCID: PMC3563651 DOI: 10.1371/journal.pone.0055127] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Accepted: 12/18/2012] [Indexed: 12/16/2022] Open
Abstract
F-box proteins constitute a large gene family that regulates processes from hormone signaling to stress response. F-box proteins are the substrate recognition modules of SCF E3 ubiquitin ligases. Here we report very distinct trends in family size, duplication, synteny and transcription of F-box genes in two nitrogen-fixing legumes, Glycine max (soybean) and Medicago truncatula (alfafa). While the soybean FBX genes emerged mainly through segmental duplications (including whole-genome duplications), M. truncatula genome is dominated by locally-duplicated (tandem) F-box genes. Many of these young FBX genes evolved complex transcriptional patterns, including preferential transcription in different tissues, suggesting that they have probably been recruited to important biochemical pathways (e.g. nodulation and seed development).
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Affiliation(s)
- Daniel Bellieny-Rabelo
- Laboratório de Química e Função de Proteínas e Peptídeos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Antônia Elenir Amâncio Oliveira
- Laboratório de Química e Função de Proteínas e Peptídeos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Thiago Motta Venancio
- Laboratório de Química e Função de Proteínas e Peptídeos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
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Enserink JM. Chemical genetics: budding yeast as a platform for drug discovery and mapping of genetic pathways. Molecules 2012; 17:9258-73. [PMID: 22858845 PMCID: PMC6268143 DOI: 10.3390/molecules17089258] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 07/18/2012] [Accepted: 07/23/2012] [Indexed: 01/18/2023] Open
Abstract
The budding yeast Saccharomyces cerevisiae is a widely used model organism, and yeast genetic methods are powerful tools for discovery of novel functions of genes. Recent advancements in chemical-genetics and chemical-genomics have opened new avenues for development of clinically relevant drug treatments. Systematic mapping of genetic networks by high-throughput chemical-genetic screens have given extensive insight in connections between genetic pathways. Here, I review some of the recent developments in chemical-genetic techniques in budding yeast.
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Affiliation(s)
- Jorrit M Enserink
- Department of Molecular Biology, Institute of Medical Microbiology and Centre for Molecular Biology and Neuroscience, Oslo University Hospital, Sognsvannsveien 20, NO-0027 Oslo, Norway.
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