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Tan Q, Møller AMJ, Qiu C, Madsen JS, Shen H, Bechmann T, Delaisse JM, Kristensen BW, Deng HW, Karasik D, Søe K. A variability in response of osteoclasts to zoledronic acid is mediated by smoking-associated modification in the DNA methylome. Clin Epigenetics 2023; 15:42. [PMID: 36915112 PMCID: PMC10012449 DOI: 10.1186/s13148-023-01449-1] [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: 10/25/2022] [Accepted: 02/15/2023] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND Clinical trials have shown zoledronic acid as a potent bisphosphonate in preventing bone loss, but with varying potency between patients. Human osteoclasts ex vivo reportedly displayed a variable sensitivity to zoledronic acid > 200-fold, determined by the half-maximal inhibitory concentration (IC50), with cigarette smoking as one of the reported contributors to this variation. To reveal the molecular basis of the smoking-mediated variation on treatment sensitivity, we performed a DNA methylome profiling on whole blood cells from 34 healthy female blood donors. Multiple regression models were fitted to associate DNA methylation with ex vivo determined IC50 values, smoking, and their interaction adjusting for age and cell compositions. RESULTS We identified 59 CpGs displaying genome-wide significance (p < 1e-08) with a false discovery rate (FDR) < 0.05 for the smoking-dependent association with IC50. Among them, 3 CpGs have p < 1e-08 and FDR < 2e-03. By comparing with genome-wide association studies, 15 significant CpGs were locally enriched (within < 50,000 bp) by SNPs associated with bone and body size measures. Furthermore, through a replication analysis using data from a published multi-omics association study on bone mineral density (BMD), we could validate that 29 out of the 59 CpGs were in close vicinity of genomic sites significantly associated with BMD. Gene Ontology (GO) analysis on genes linked to the 59 CpGs displaying smoking-dependent association with IC50, detected 18 significant GO terms including cation:cation antiporter activity, extracellular matrix conferring tensile strength, ligand-gated ion channel activity, etc. CONCLUSIONS: Our results suggest that smoking mediates individual sensitivity to zoledronic acid treatment through epigenetic regulation. Our novel findings could have important clinical implications since DNA methylation analysis may enable personalized zoledronic acid treatment.
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Affiliation(s)
- Qihua Tan
- grid.10825.3e0000 0001 0728 0170Epidemiology and Biostatistics, Department of Public Health, University of Southern Denmark, 5000 Odense C, Denmark
| | - Anaïs Marie Julie Møller
- grid.10825.3e0000 0001 0728 0170Clinical Cell Biology, Pathology Research Unit, Department of Clinical Research, University of Southern Denmark, J. B. Winsløvs Vej 25, 1st Floor, 5000 Odense C, Denmark
- grid.10825.3e0000 0001 0728 0170Clinical Cell Biology, Department of Regional Health Research, University of Southern Denmark, 7100 Vejle, Denmark
| | - Chuan Qiu
- grid.265219.b0000 0001 2217 8588Division of Biomedical Informatics and Genomics, Deming Department of Medicine, Tulane Center of Biomedical Informatics and Genomics, Tulane University, New Orleans, LA 70112 USA
| | - Jonna Skov Madsen
- grid.7143.10000 0004 0512 5013Department of Biochemistry and Immunology, Lillebaelt Hospital, University Hospital of Southern Denmark, 7100 Vejle, Denmark
- grid.10825.3e0000 0001 0728 0170Department of Regional Health Research, University of Southern Denmark, 5000 Odense C, Denmark
| | - Hui Shen
- grid.265219.b0000 0001 2217 8588Division of Biomedical Informatics and Genomics, Deming Department of Medicine, Tulane Center of Biomedical Informatics and Genomics, Tulane University, New Orleans, LA 70112 USA
| | - Troels Bechmann
- grid.7143.10000 0004 0512 5013Department of Oncology, Lillebaelt Hospital, University Hospital of Southern Denmark, 7100 Vejle, Denmark
- grid.452681.c0000 0004 0639 1735Department of Oncology, Regional Hospital West Jutland, 7400 Herning, Denmark
| | - Jean-Marie Delaisse
- grid.10825.3e0000 0001 0728 0170Clinical Cell Biology, Pathology Research Unit, Department of Clinical Research, University of Southern Denmark, J. B. Winsløvs Vej 25, 1st Floor, 5000 Odense C, Denmark
- grid.7143.10000 0004 0512 5013Department of Pathology, Odense University Hospital, 5000 Odense C, Denmark
| | - Bjarne Winther Kristensen
- grid.7143.10000 0004 0512 5013Department of Pathology, Odense University Hospital, 5000 Odense C, Denmark
- grid.10825.3e0000 0001 0728 0170Pathology Research Unit, Department of Clinical Research, University of Southern Denmark, 5000 Odense C, Denmark
| | - Hong-Wen Deng
- grid.265219.b0000 0001 2217 8588Division of Biomedical Informatics and Genomics, Deming Department of Medicine, Tulane Center of Biomedical Informatics and Genomics, Tulane University, New Orleans, LA 70112 USA
| | - David Karasik
- grid.22098.310000 0004 1937 0503Azrieli Faculty of Medicine, Bar-Ilan University, 130010 Safed, Israel
| | - Kent Søe
- grid.10825.3e0000 0001 0728 0170Clinical Cell Biology, Pathology Research Unit, Department of Clinical Research, University of Southern Denmark, J. B. Winsløvs Vej 25, 1st Floor, 5000 Odense C, Denmark
- grid.7143.10000 0004 0512 5013Department of Pathology, Odense University Hospital, 5000 Odense C, Denmark
- grid.10825.3e0000 0001 0728 0170Department of Molecular Medicine, University of Southern Denmark, 5000 Odense C, Denmark
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2
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Saccharomyces cerevisiae as a Model System for Eukaryotic Cell Biology, from Cell Cycle Control to DNA Damage Response. Int J Mol Sci 2022; 23:ijms231911665. [PMID: 36232965 PMCID: PMC9570374 DOI: 10.3390/ijms231911665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/08/2022] Open
Abstract
The yeast Saccharomyces cerevisiae has been used for bread making and beer brewing for thousands of years. In addition, its ease of manipulation, well-annotated genome, expansive molecular toolbox, and its strong conservation of basic eukaryotic biology also make it a prime model for eukaryotic cell biology and genetics. In this review, we discuss the characteristics that made yeast such an extensively used model organism and specifically focus on the DNA damage response pathway as a prime example of how research in S. cerevisiae helped elucidate a highly conserved biological process. In addition, we also highlight differences in the DNA damage response of S. cerevisiae and humans and discuss the challenges of using S. cerevisiae as a model system.
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Qiu C, Yu F, Su K, Zhao Q, Zhang L, Xu C, Hu W, Wang Z, Zhao L, Tian Q, Wang Y, Deng H, Shen H. Multi-omics Data Integration for Identifying Osteoporosis Biomarkers and Their Biological Interaction and Causal Mechanisms. iScience 2020; 23:100847. [PMID: 32058959 PMCID: PMC6997862 DOI: 10.1016/j.isci.2020.100847] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/22/2019] [Accepted: 01/13/2020] [Indexed: 12/31/2022] Open
Abstract
Osteoporosis is characterized by low bone mineral density (BMD). The advancement of high-throughput technologies and integrative approaches provided an opportunity for deciphering the mechanisms underlying osteoporosis. Here, we generated genomic, transcriptomic, methylomic, and metabolomic datasets from 119 subjects with high (n = 61) and low (n = 58) BMDs. By adopting sparse multiple discriminative canonical correlation analysis, we identified an optimal multi-omics biomarker panel with 74 differentially expressed genes (DEGs), 75 differentially methylated CpG sites (DMCs), and 23 differential metabolic products (DMPs). By linking genetic data, we identified 199 targeted BMD-associated expression/methylation/metabolite quantitative trait loci (eQTLs/meQTLs/metaQTLs). The reconstructed networks/pathways showed extensive biomarker interactions, and a substantial proportion of these biomarkers were enriched in RANK/RANKL, MAPK/TGF-β, and WNT/β-catenin pathways and G-protein-coupled receptor, GTP-binding/GTPase, telomere/mitochondrial activities that are essential for bone metabolism. Five biomarkers (FADS2, ADRA2A, FMN1, RABL2A, SPRY1) revealed causal effects on BMD variation. Our study provided an innovative framework and insights into the pathogenesis of osteoporosis.
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Affiliation(s)
- Chuan Qiu
- Center for Bioinformatics and Genomics, Department of Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, New Orleans 70112, LA, USA
| | - Fangtang Yu
- Center for Bioinformatics and Genomics, Department of Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, New Orleans 70112, LA, USA
| | - Kuanjui Su
- Center for Bioinformatics and Genomics, Department of Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, New Orleans 70112, LA, USA
| | - Qi Zhao
- Department of Preventive Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis 38163, TN, USA
| | - Lan Zhang
- Center for Bioinformatics and Genomics, Department of Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, New Orleans 70112, LA, USA
| | - Chao Xu
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City 73104, OK, USA
| | - Wenxing Hu
- Department of Biomedical Engineering, Tulane University, New Orleans 70118, LA, USA
| | - Zun Wang
- Center for Bioinformatics and Genomics, Department of Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, New Orleans 70112, LA, USA; Xiangya Nursing School, Central South University, Changsha 410013, China
| | - Lanjuan Zhao
- Center for Bioinformatics and Genomics, Department of Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, New Orleans 70112, LA, USA
| | - Qing Tian
- Center for Bioinformatics and Genomics, Department of Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, New Orleans 70112, LA, USA
| | - Yuping Wang
- Department of Biomedical Engineering, Tulane University, New Orleans 70118, LA, USA
| | - Hongwen Deng
- Center for Bioinformatics and Genomics, Department of Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, New Orleans 70112, LA, USA; School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Hui Shen
- Center for Bioinformatics and Genomics, Department of Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, New Orleans 70112, LA, USA.
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Parker S, Fraczek MG, Wu J, Shamsah S, Manousaki A, Dungrattanalert K, de Almeida RA, Estrada-Rivadeneyra D, Omara W, Delneri D, O'Keefe RT. A resource for functional profiling of noncoding RNA in the yeast Saccharomyces cerevisiae. RNA (NEW YORK, N.Y.) 2017; 23:1166-1171. [PMID: 28468764 PMCID: PMC5513061 DOI: 10.1261/rna.061564.117] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 05/01/2017] [Indexed: 06/07/2023]
Abstract
Eukaryotic genomes are extensively transcribed, generating many different RNAs with no known function. We have constructed 1502 molecular barcoded ncRNA gene deletion strains encompassing 443 ncRNAs in the yeast Saccharomyces cerevisiae as tools for ncRNA functional analysis. This resource includes deletions of small nuclear RNAs (snRNAs), transfer RNAs (tRNAs), small nucleolar RNAs (snoRNAs), and other annotated ncRNAs as well as the more recently identified stable unannotated transcripts (SUTs) and cryptic unstable transcripts (CUTs) whose functions are largely unknown. Specifically, deletions have been constructed for ncRNAs found in the intergenic regions, not overlapping genes or their promoters (i.e., at least 200 bp minimum distance from the closest gene start codon). The deletion strains carry molecular barcodes designed to be complementary with the protein gene deletion collection enabling parallel analysis experiments. These strains will be useful for the numerous genomic and molecular techniques that utilize deletion strains, including genome-wide phenotypic screens under different growth conditions, pooled chemogenomic screens with drugs or chemicals, synthetic genetic array analysis to uncover novel genetic interactions, and synthetic dosage lethality screens to analyze gene dosage. Overall, we created a valuable resource for the RNA community and for future ncRNA research.
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Affiliation(s)
| | | | - Jian Wu
- Division of Molecular and Cellular Function, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PT, United Kingdom
| | - Sara Shamsah
- Division of Molecular and Cellular Function, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PT, United Kingdom
| | | | | | - Rogerio Alves de Almeida
- Division of Molecular and Cellular Function, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PT, United Kingdom
| | - Diego Estrada-Rivadeneyra
- Division of Molecular and Cellular Function, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PT, United Kingdom
| | - Walid Omara
- Division of Molecular and Cellular Function, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PT, United Kingdom
- Department of Microbiology and Immunology, Faculty of Pharmacy, Minia University, Minya 11432, Egypt
| | | | - Raymond T O'Keefe
- Division of Molecular and Cellular Function, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PT, United Kingdom
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Mansouri M, Mirzaei SA, Lage H, Mousavi SS, Elahian F. The cell cycle arrest and the anti-invasive effects of nitrogen-containing bisphosphonates are not mediated by DBF4 in breast cancer cells. Biochimie 2013; 99:71-6. [PMID: 24287290 DOI: 10.1016/j.biochi.2013.11.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 11/11/2013] [Indexed: 01/13/2023]
Abstract
Recent work has shown that a DBF4 analog in yeast may be a target of nitrogen-containing bisphosphonates. DBF4 is an essential protein kinase required for DNA replication from primary eukaryotes to humans and appears to play a critical role in the S-phase checkpoint. It is also required for cell migration and cell surface adhesion. The effects of Pamidronate, risedronate, or zoledronate on cell viability and DBF4 expression were measured via MTT assays and western blotting. In addition, FACS cell cycle analyses and invasion assays were conducted in cells in the presence of nitrogen-containing bisphosphonates to identify any correlations between DBF4 expression and S-phase arrest or anti-invasive effects of the bisphosphonates. Zoledronate transiently down-regulated DBF4 expression in all three cell lines in the first 24 h of the experiment, but after 72 h, DBF4 expression returned to the control levels in all treated cells. Following treatment of the tumor cells with the bisphosphonates, the number of cells in S-phase was increased. Pamidronate and zoledronate showed anti-invasive effects in BT20 cells. The anti-invasive effects of pamidronate, risedronate and zoledronate appeared after 48 h of exposure. In MDA-MB231 cells a reduction of invasiveness was only observed after 72 h of the pamidronate exposure. We finally concluded that the anti-invasive and cell cycle arrest-inducing effects of nitrogen-containing bisphosphonates are not DBF4 mediated, and other mediators are therefore needed to explain the observed complex behaviors.
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Affiliation(s)
- Mahdieh Mansouri
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Iran
| | - Seyed Abbas Mirzaei
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Iran; Institute of Pathology, Charité Campus Mitte, University Medicine Berlin, Berlin, Germany
| | - Hermann Lage
- Institute of Pathology, Charité Campus Mitte, University Medicine Berlin, Berlin, Germany
| | - Seyyedeh Soghra Mousavi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Iran
| | - Fatemeh Elahian
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Iran; Institute of Pathology, Charité Campus Mitte, University Medicine Berlin, Berlin, Germany.
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Dikicioglu D, Pir P, Oliver SG. Predicting complex phenotype-genotype interactions to enable yeast engineering: Saccharomyces cerevisiae as a model organism and a cell factory. Biotechnol J 2013; 8:1017-34. [PMID: 24031036 PMCID: PMC3910164 DOI: 10.1002/biot.201300138] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 07/15/2013] [Accepted: 08/07/2013] [Indexed: 11/08/2022]
Abstract
There is an increasing use of systems biology approaches in both "red" and "white" biotechnology in order to enable medical, medicinal, and industrial applications. The intricate links between genotype and phenotype may be explained through the use of the tools developed in systems biology, synthetic biology, and evolutionary engineering. Biomedical and biotechnological research are among the fields that could benefit most from the elucidation of this complex relationship. Researchers have studied fitness extensively to explain the phenotypic impacts of genetic variations. This elaborate network of dependencies and relationships so revealed are further complicated by the influence of environmental effects that present major challenges to our achieving an understanding of the cellular mechanisms leading to healthy or diseased phenotypes or optimized production yields. An improved comprehension of complex genotype-phenotype interactions and their accurate prediction should enable us to more effectively engineer yeast as a cell factory and to use it as a living model of human or pathogen cells in intelligent screens for new drugs. This review presents different methods and approaches undertaken toward improving our understanding and prediction of the growth phenotype of the yeast Saccharomyces cerevisiae as both a model and a production organism.
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Affiliation(s)
- Duygu Dikicioglu
- Cambridge Systems Biology Centre and Department of Biochemistry, University of Cambridge, CB2 1GA, Cambridge, UK
| | - Pınar Pir
- Babraham Institute, Babraham Research Campus, CB22 3AT, Cambridge, UK
| | - Stephen G Oliver
- Cambridge Systems Biology Centre and Department of Biochemistry, University of Cambridge, CB2 1GA, Cambridge, UK
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7
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Ziegler S, Pries V, Hedberg C, Waldmann H. Identifizierung der Zielproteine bioaktiver Verbindungen: Die Suche nach der Nadel im Heuhaufen. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208749] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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8
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Ziegler S, Pries V, Hedberg C, Waldmann H. Target identification for small bioactive molecules: finding the needle in the haystack. Angew Chem Int Ed Engl 2013; 52:2744-92. [PMID: 23418026 DOI: 10.1002/anie.201208749] [Citation(s) in RCA: 356] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Indexed: 01/10/2023]
Abstract
Identification and confirmation of bioactive small-molecule targets is a crucial, often decisive step both in academic and pharmaceutical research. Through the development and availability of several new experimental techniques, target identification is, in principle, feasible, and the number of successful examples steadily grows. However, a generic methodology that can successfully be applied in the majority of the cases has not yet been established. Herein we summarize current methods for target identification of small molecules, primarily for a chemistry audience but also the biological community, for example, the chemist or biologist attempting to identify the target of a given bioactive compound. We describe the most frequently employed experimental approaches for target identification and provide several representative examples illustrating the state-of-the-art. Among the techniques currently available, protein affinity isolation using suitable small-molecule probes (pulldown) and subsequent mass spectrometric analysis of the isolated proteins appears to be most powerful and most frequently applied. To provide guidance for rapid entry into the field and based on our own experience we propose a typical workflow for target identification, which centers on the application of chemical proteomics as the key step to generate hypotheses for potential target proteins.
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Affiliation(s)
- Slava Ziegler
- Max-Planck-Institut für molekulare Physiologie, Abt. Chemische Biologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany.
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9
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Carranza G, Castaño R, Fanarraga ML, Villegas JC, Gonçalves J, Soares H, Avila J, Marenchino M, Campos-Olivas R, Montoya G, Zabala JC. Autoinhibition of TBCB regulates EB1-mediated microtubule dynamics. Cell Mol Life Sci 2013; 70:357-71. [PMID: 22940919 PMCID: PMC11113326 DOI: 10.1007/s00018-012-1114-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 07/26/2012] [Accepted: 07/31/2012] [Indexed: 12/22/2022]
Abstract
Tubulin cofactors (TBCs) participate in the folding, dimerization, and dissociation pathways of the tubulin dimer. Among them, TBCB and TBCE are two CAP-Gly domain-containing proteins that together efficiently interact with and dissociate the tubulin dimer. In the study reported here we showed that TBCB localizes at spindle and midzone microtubules during mitosis. Furthermore, the motif DEI/M-COO(-) present in TBCB, which is similar to the EEY/F-COO(-) element characteristic of EB proteins, CLIP-170, and α-tubulin, is required for TBCE-TBCB heterodimer formation and thus for tubulin dimer dissociation. This motif is responsible for TBCB autoinhibition, and our analysis suggests that TBCB is a monomer in solution. Mutants of TBCB lacking this motif are derepressed and induce microtubule depolymerization through an interaction with EB1 associated with microtubule tips. TBCB is also able to bind to the chaperonin complex CCT containing α-tubulin, suggesting that it could escort tubulin to facilitate its folding and dimerization, recycling or degradation.
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Affiliation(s)
- Gerardo Carranza
- Departamento de Biología Molecular, Facultad de Medicina, IFIMAV-Universidad de Cantabria, 39011 Santander, Spain
| | - Raquel Castaño
- Departamento de Biología Molecular, Facultad de Medicina, IFIMAV-Universidad de Cantabria, 39011 Santander, Spain
| | - Mónica L. Fanarraga
- Departamento de Biología Molecular, Facultad de Medicina, IFIMAV-Universidad de Cantabria, 39011 Santander, Spain
| | - Juan Carlos Villegas
- Departamento de Anatomía y Biología Celular, Facultad de Medicina, IFIMAV-Universidad de Cantabria, 39011 Santander, Spain
| | - João Gonçalves
- Centro de Química eBioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal
- Instituto Gulbenkian de Ciência, Ap. 14, 2781-901 Oeiras, Portugal
- Escola Superior de Tecnologia, Saude de Lisboa, 1990-096 Lisbon, Portugal
- Present Address: Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue, Room 1070, Toronto, ON M5G 1X5 Canada
| | - Helena Soares
- Centro de Química eBioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal
- Instituto Gulbenkian de Ciência, Ap. 14, 2781-901 Oeiras, Portugal
- Escola Superior de Tecnologia, Saude de Lisboa, 1990-096 Lisbon, Portugal
| | - Jesus Avila
- Centro de Biología Molecular (CSIC-UAM), Universidad Autónoma de Madrid, 28049 Cantoblanco, Madrid, Spain
| | - Marco Marenchino
- Spectroscopy and NMR Unit, Structural Biology and Biocomputing Program, Spanish National Cancer Research Center (CNIO), Melchor Fdez. Almagro 3, 28029 Madrid, Spain
| | - Ramón Campos-Olivas
- Spectroscopy and NMR Unit, Structural Biology and Biocomputing Program, Spanish National Cancer Research Center (CNIO), Melchor Fdez. Almagro 3, 28029 Madrid, Spain
| | - Guillermo Montoya
- Macromolecular Crystallography Group, Structural Biology and Biocomputing Program, Spanish National Cancer Research Center (CNIO), Melchor Fdez. Almagro 3, 28029 Madrid, Spain
| | - Juan Carlos Zabala
- Departamento de Biología Molecular, Facultad de Medicina, IFIMAV-Universidad de Cantabria, 39011 Santander, Spain
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Dos Santos SC, Teixeira MC, Cabrito TR, Sá-Correia I. Yeast toxicogenomics: genome-wide responses to chemical stresses with impact in environmental health, pharmacology, and biotechnology. Front Genet 2012; 3:63. [PMID: 22529852 PMCID: PMC3329712 DOI: 10.3389/fgene.2012.00063] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Accepted: 04/03/2012] [Indexed: 01/20/2023] Open
Abstract
The emerging transdisciplinary field of Toxicogenomics aims to study the cell response to a given toxicant at the genome, transcriptome, proteome, and metabolome levels. This approach is expected to provide earlier and more sensitive biomarkers of toxicological responses and help in the delineation of regulatory risk assessment. The use of model organisms to gather such genomic information, through the exploitation of Omics and Bioinformatics approaches and tools, together with more focused molecular and cellular biology studies are rapidly increasing our understanding and providing an integrative view on how cells interact with their environment. The use of the model eukaryote Saccharomyces cerevisiae in the field of Toxicogenomics is discussed in this review. Despite the limitations intrinsic to the use of such a simple single cell experimental model, S. cerevisiae appears to be very useful as a first screening tool, limiting the use of animal models. Moreover, it is also one of the most interesting systems to obtain a truly global understanding of the toxicological response and resistance mechanisms, being in the frontline of systems biology research and developments. The impact of the knowledge gathered in the yeast model, through the use of Toxicogenomics approaches, is highlighted here by its use in prediction of toxicological outcomes of exposure to pesticides and pharmaceutical drugs, but also by its impact in biotechnology, namely in the development of more robust crops and in the improvement of yeast strains as cell factories.
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Affiliation(s)
- Sandra C Dos Santos
- Institute for Biotechnology and Bioengineering, Centre for Biological and Chemical Engineering, Instituto Superior Técnico, Technical University of Lisbon Lisbon, Portugal
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Delneri D. Competition experiments coupled with high-throughput analyses for functional genomics studies in yeast. Methods Mol Biol 2011; 759:271-82. [PMID: 21863493 DOI: 10.1007/978-1-61779-173-4_16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Competition experiments are an effective way to provide a measurement of the fitness of yeast strains. The availability of the Saccharomyces cerevisiae yeast knock-out (YKO) deletion collection allows scientists to retrieve fitness data for the ~6,000 S. cerevisiae genes at the same time in a given environment. The molecular barcodes, characterizing each yeast mutant, serve as strain identifiers, which can be detected in a single microarray analysis. Competition experiments in continuous culture using chemically defined media allow a more specific discrimination of the strains based on their fitness profile. With this high-throughput approach, a series of genes that, when one allele is missing, result in either defective (haplo-insufficient) or favored (haplo-proficient) growth phenotype have been discovered, for each nutrient-limiting condition tested. While haplo-insufficient genes seemed to overlap largely across all the media used, the haplo-proficient ones seem to be more environment specific. For example, genes involved in the protein secretion pathway were highly haplo-insufficient in all the contexts, whereas most of the genes encoding for proteasome components showed a haplo-proficient phenotype specific to nitrogen-limiting conditions. In this chapter, the method used for implementation of competition experiments for high-throughput studies in yeast is presented.
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Affiliation(s)
- Daniela Delneri
- Faculty of Life Sciences, The University of Manchester, Manchester, UK.
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12
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Management of cytoskeleton architecture by molecular chaperones and immunophilins. Cell Signal 2011; 23:1907-20. [PMID: 21864675 DOI: 10.1016/j.cellsig.2011.07.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 07/22/2011] [Accepted: 07/26/2011] [Indexed: 11/20/2022]
Abstract
Cytoskeletal structure is continually remodeled to accommodate normal cell growth and to respond to pathophysiological cues. As a consequence, several cytoskeleton-interacting proteins become involved in a variety of cellular processes such as cell growth and division, cell movement, vesicle transportation, cellular organelle location and function, localization and distribution of membrane receptors, and cell-cell communication. Molecular chaperones and immunophilins are counted among the most important proteins that interact closely with the cytoskeleton network, in particular with microtubules and microtubule-associated factors. In several situations, heat-shock proteins and immunophilins work together as a functionally active heterocomplex, although both types of proteins also show independent actions. In circumstances where homeostasis is affected by environmental stresses or due to genetic alterations, chaperone proteins help to stabilize the system. Molecular chaperones facilitate the assembly, disassembly and/or folding/refolding of cytoskeletal proteins, so they prevent aberrant protein aggregation. Nonetheless, the roles of heat-shock proteins and immunophilins are not only limited to solve abnormal situations, but they also have an active participation during the normal differentiation process of the cell and are key factors for many structural and functional rearrangements during this course of action. Cytoskeleton modifications leading to altered localization of nuclear factors may result in loss- or gain-of-function of such factors, which affects the cell cycle and cell development. Therefore, cytoskeletal components are attractive therapeutic targets, particularly microtubules, to prevent pathological situations such as rapidly dividing tumor cells or to favor the process of cell differentiation in other cases. In this review we will address some classical and novel aspects of key regulatory functions of heat-shock proteins and immunophilins as housekeeping factors of the cytoskeletal network.
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Kobayashi H, Tanaka Y, Yagi J, Minato N, Tanabe K. Phase I/II study of adoptive transfer of γδ T cells in combination with zoledronic acid and IL-2 to patients with advanced renal cell carcinoma. Cancer Immunol Immunother 2011; 60:1075-84. [PMID: 21519826 PMCID: PMC11029699 DOI: 10.1007/s00262-011-1021-7] [Citation(s) in RCA: 126] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Accepted: 04/07/2011] [Indexed: 10/18/2022]
Abstract
Human Vγ2 Vδ2-bearing T cells have recently received much attention in cancer immunotherapy. In this study, we conducted a phase I/II clinical trial of the adoptive transfer of γδ T cells to patients with advanced renal cell carcinoma. Eleven patients who had undergone nephrectomy and had lung metastasis were enrolled. Peripheral blood γδ T cells obtained from the patients were stimulated ex vivo with 2-methyl-3-butenyl-1-pyrophosphate (2M3B1PP), a synthetic pyrophosphomonoester antigen, and transferred in combination with zoledronic acid (Zol) and teceleukin (recombinant human interleukin-2). Expanded γδ T cells exhibited potent cytotoxic activity against tumor cells in vitro, and the proportion of peripheral blood γδ T cells among CD3(+) cells typically peaked three to 5 days after transfer. Tumor doubling time was prolonged in all 11 patients, and the best overall responses were 1 CR, 5 SD, and 5 PD, as defined based on Response Evaluation Criteria in Solid Tumors (RECIST). Although ten patients developed adverse reactions of grade ≥3, they were likely to have been the result of the concomitant infusion of Zol and IL-2, and most symptoms swiftly reverted to normal during the course of treatment. In conclusion, this clinical trial demonstrated that our regimen for the adoptive transfer of γδ T cells in combination with Zol and IL-2 was well tolerated and that objective clinical responses could be achieved in some patients with advanced renal cell carcinoma.
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Affiliation(s)
- Hirohito Kobayashi
- Department of Urology, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan.
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Bivi N, Picotti P, Müller LN, Romanello M, Moro L, Quadrifoglio F, Tell G. Shotgun proteomics analysis reveals new unsuspected molecular effectors of nitrogen-containing bisphosphonates in osteocytes. J Proteomics 2011; 74:1113-22. [PMID: 21504803 DOI: 10.1016/j.jprot.2011.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 03/15/2011] [Accepted: 04/04/2011] [Indexed: 12/28/2022]
Abstract
Nitrogen-containing bisphosphonates (N-BPs) are therapeutic agents used to treat osteoporosis and promote osteoblast and osteocyte survival. The molecular mechanisms underlying this effect have been extensively studied, but the global changes induced by N-BPs at the protein level are not known. In this context, we investigated the effect of 10(-7)M Risedronate for 1h and 48h on MLO-Y4 osteocytic cells, through a quantitative, label free shotgun proteomic analysis. We described herein a preliminary proteome map of untreated MLO-Y4 cells, composed of 353 protein species. Moreover, we identified 10 and 15 differentially expressed proteins after 1h and 48h of Risedronate treatment, respectively. Among these, PARK7/DJ-1 protein levels were induced up to 3 times and this event was associated with the activation of the pro-survival Akt pathway that we propose as a novel player in the effect of N-BPs on osteocytes. Risedronate was also able to induce the expression and the secretion of the growth factor pro-granulin. In addition, protein prenylation inhibition appeared to be involved in the modulation of MLO-Y4 proteome by RIS in a protein-specific manner. In conclusion, these findings unveil novel functions targeted by N-BPs in osteocytes and could be useful to design novel pharmaceutical compounds.
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Affiliation(s)
- Nicoletta Bivi
- Department of Medical and Biological Sciences, University of Udine, 33100 Udine, Italy
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Wasko BM, Dudakovic A, Hohl RJ. Bisphosphonates Induce Autophagy by Depleting Geranylgeranyl Diphosphate. J Pharmacol Exp Ther 2011; 337:540-6. [DOI: 10.1124/jpet.110.175521] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Clézardin P. Bisphosphonates' antitumor activity: an unravelled side of a multifaceted drug class. Bone 2011; 48:71-9. [PMID: 20655399 DOI: 10.1016/j.bone.2010.07.016] [Citation(s) in RCA: 122] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2010] [Revised: 07/11/2010] [Accepted: 07/12/2010] [Indexed: 12/13/2022]
Abstract
Bisphosphonates, especially nitrogen-containing bisphosphonates (N-BPs), are widely used to preserve and improve bone health in patients with cancer because they inhibit osteoclast-mediated bone resorption. In addition to their effects on bone, preclinical evidence strongly suggests that N-BPs exert anticancer activity without the involvement of osteoclasts by interacting with macrophages, endothelial cells and tumor cells, and by stimulating the cytotoxicity of γδ T cells, a subset of human T cells. This review examines the current insights and fronts of ongoing preclinical research on N-BPs' antitumor activity.
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Affiliation(s)
- Philippe Clézardin
- INSERM, Research Unit U664, University of Lyon-1, Faculty of Medicine Lyon-Est (domaine Laennec), rue Guillaume Paradin, 69372 Lyon Cedex 08, France.
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How do bisphosphonates inhibit bone metastasis in vivo? Neoplasia 2010; 12:571-8. [PMID: 20651986 DOI: 10.1593/neo.10282] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2010] [Revised: 02/15/2010] [Accepted: 04/23/2010] [Indexed: 01/06/2023] Open
Abstract
Bisphosphonates are potent inhibitors of osteoclast-mediated bone resorption and have demonstrated clinical utility in the treatment of patients with osteolytic bone metastases. They also exhibit direct antitumor activity in vitro and can reduce skeletal tumor burden and inhibit the formation of bone metastases in vivo. However, whether such effects are caused by a direct action of bisphosphonates on tumor cells or indirectly through inhibition of bone resorption remains unclear. To address this question, we used here a structural analog of the bisphosphonate risedronate, NE-58051, which has a bone mineral affinity similar to that of risedronate, but a 3000-fold lower bone antiresorptive activity. In vitro, risedronate and NE-58051 inhibited proliferation of breast cancer and melanoma cell lines. In vivo, risedronate and NE-58051 did not inhibit the growth of subcutaneous B02 breast tumor xenografts or the formation of B16F10 melanoma lung metastasis. In contrast to NE-58051, risedronate did inhibit B02 breast cancer bone metastasis formation by reducing both bone destruction and skeletal tumor burden, indicating that the antitumor effect of bisphosphonates is achieved mainly through inhibition of osteoclast-mediated bone resorption.
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Abstract
Zoledronic acid effectively reduces/delays skeletal-related events in patients with metastatic disease or skeletal-related cancers. Emerging data suggest that zoledronic acid may also exhibit anticancer properties. Zoledronic acid ± anticancer therapies in animal models inhibits soft-tissue tumor growth, decreases tumor cell proliferation, increases apoptosis, inhibits angiogenesis, alters tumor-associated macrophage function, and enhances immune surveillance. Data from in vitro and pilot studies suggest that zoledronic acid inhibits tumor cell dissemination in bone marrow, and early clinical data show that it may improve disease-related outcomes. Ongoing studies will further elucidate the role of zoledronic acid in cancer patients.
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Lundin VF, Leroux MR, Stirling PC. Quality control of cytoskeletal proteins and human disease. Trends Biochem Sci 2010; 35:288-97. [PMID: 20116259 DOI: 10.1016/j.tibs.2009.12.007] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2009] [Revised: 12/22/2009] [Accepted: 12/23/2009] [Indexed: 11/25/2022]
Abstract
Actins and tubulins are abundant cytoskeletal proteins that support diverse cellular processes. Owing to the unique properties of these filament-forming proteins, an intricate cellular machinery consisting minimally of the chaperonin CCT, prefoldin, phosducin-like proteins, and tubulin cofactors has evolved to facilitate their biogenesis. More recent evidence also suggests that regulated degradation pathways exist for actin (via TRIM32) and tubulin (via parkin or cofactor E-like). Collectively, these pathways maintain the quality control of cytoskeletal proteins ('proteostasis'), ensuring the appropriate function of microfilaments and microtubules. Here, we focus on the molecular mechanisms of the quality control of actin and tubulin, and discuss emerging links between cytoskeletal proteostasis and human diseases.
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Affiliation(s)
- Victor F Lundin
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
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