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Hui R, Scheib CL, D’Atanasio E, Inskip SA, Cessford C, Biagini SA, Wohns AW, Ali MQ, Griffith SJ, Solnik A, Niinemäe H, Ge XJ, Rose AK, Beneker O, O’Connell TC, Robb JE, Kivisild T. Genetic history of Cambridgeshire before and after the Black Death. Sci Adv 2024; 10:eadi5903. [PMID: 38232165 PMCID: PMC10793959 DOI: 10.1126/sciadv.adi5903] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 12/14/2023] [Indexed: 01/19/2024]
Abstract
The extent of the devastation of the Black Death pandemic (1346-1353) on European populations is known from documentary sources and its bacterial source illuminated by studies of ancient pathogen DNA. What has remained less understood is the effect of the pandemic on human mobility and genetic diversity at the local scale. Here, we report 275 ancient genomes, including 109 with coverage >0.1×, from later medieval and postmedieval Cambridgeshire of individuals buried before and after the Black Death. Consistent with the function of the institutions, we found a lack of close relatives among the friars and the inmates of the hospital in contrast to their abundance in general urban and rural parish communities. While we detect long-term shifts in local genetic ancestry in Cambridgeshire, we find no evidence of major changes in genetic ancestry nor higher differentiation of immune loci between cohorts living before and after the Black Death.
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Affiliation(s)
- Ruoyun Hui
- Alan Turing Institute, London, UK
- McDonald Institute for Archaeological Research, University of Cambridge, Cambridge, UK
| | - Christiana L. Scheib
- McDonald Institute for Archaeological Research, University of Cambridge, Cambridge, UK
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia
- St John’s College, University of Cambridge, Cambridge, UK
| | | | - Sarah A. Inskip
- McDonald Institute for Archaeological Research, University of Cambridge, Cambridge, UK
- School of Archaeology and Ancient History, University of Leicester, Leicester, UK
| | - Craig Cessford
- McDonald Institute for Archaeological Research, University of Cambridge, Cambridge, UK
- Cambridge Archaeological Unit, Department of Archaeology, University of Cambridge, Cambridge, UK
| | | | - Anthony W. Wohns
- School of Medicine, Stanford University, Stanford, CA, USA
- Department of Genetics and Biology, Stanford University, Stanford, CA, USA
| | | | - Samuel J. Griffith
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Anu Solnik
- Core Facility, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Helja Niinemäe
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Xiangyu Jack Ge
- Wellcome Genome Campus, Wellcome Sanger Institute, Hinxton, UK
| | - Alice K. Rose
- McDonald Institute for Archaeological Research, University of Cambridge, Cambridge, UK
- Department of Archaeology, University of Durham, Durham, UK
| | - Owyn Beneker
- Department of Human Genetics, KU Leuven, Leuven, Belgium
| | - Tamsin C. O’Connell
- McDonald Institute for Archaeological Research, University of Cambridge, Cambridge, UK
| | - John E. Robb
- Department of Archaeology, University of Cambridge, Cambridge, UK
| | - Toomas Kivisild
- McDonald Institute for Archaeological Research, University of Cambridge, Cambridge, UK
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia
- Department of Human Genetics, KU Leuven, Leuven, Belgium
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2
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Haikukutu L, Lyaku JR, Lyimo CM, Eiseb SJ, Makundi RH, Olayemi A, Wilhelm K, Müller-Klein N, Schmid DW, Fleischer R, Sommer S. Immunogenetics, sylvatic plague and its vectors: insights from the pathogen reservoir Mastomys natalensis in Tanzania. Immunogenetics 2023; 75:517-530. [PMID: 37853246 PMCID: PMC10651713 DOI: 10.1007/s00251-023-01323-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 10/08/2023] [Indexed: 10/20/2023]
Abstract
Yersinia pestis is a historically important vector-borne pathogen causing plague in humans and other mammals. Contemporary zoonotic infections with Y. pestis still occur in sub-Saharan Africa, including Tanzania and Madagascar, but receive relatively little attention. Thus, the role of wildlife reservoirs in maintaining sylvatic plague and spillover risks to humans is largely unknown. The multimammate rodent Mastomys natalensis is the most abundant and widespread rodent in peri-domestic areas in Tanzania, where it plays a major role as a Y. pestis reservoir in endemic foci. Yet, how M. natalensis' immunogenetics contributes to the maintenance of plague has not been investigated to date. Here, we surveyed wild M. natalensis for Y. pestis vectors, i.e., fleas, and tested for the presence of antibodies against Y. pestis using enzyme-linked immunosorbent assays (ELISA) in areas known to be endemic or without previous records of Y. pestis in Tanzania. We characterized the allelic and functional (i.e., supertype) diversity of the major histocompatibility complex (MHC class II) of M. natalensis and investigated links to Y. pestis vectors and infections. We detected antibodies against Y. pestis in rodents inhabiting both endemic areas and areas considered non-endemic. Of the 111 nucleotide MHC alleles, only DRB*016 was associated with an increased infestation with the flea Xenopsylla. Surprisingly, we found no link between MHC alleles or supertypes and antibodies of Y. pestis. Our findings hint, however, at local adaptations towards Y. pestis vectors, an observation that more exhaustive sampling could unwind in the future.
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Affiliation(s)
- Lavinia Haikukutu
- Department of Wildlife Management, Sokoine University of Agriculture, Morogoro, Tanzania.
- Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Ulm, Germany.
- Africa Centre of Excellence for Innovative Rodent Pest Management and Biosensor Technology Development, Sokoine University of Agriculture, Morogoro, Tanzania.
| | - Japhet R Lyaku
- Department of Paraclinical Studies, School of Veterinary Medicine, University of Namibia, Windhoek, Namibia
| | - Charles M Lyimo
- Department of Animal, Aquaculture and Range Sciences, Sokoine University of Agriculture, Chuo Kikuu, Morogoro, Tanzania
| | - Seth J Eiseb
- Department of Environmental Sciences, University of Namibia, Windhoek, Namibia
| | - Rhodes H Makundi
- Africa Centre of Excellence for Innovative Rodent Pest Management and Biosensor Technology Development, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Ayodeji Olayemi
- Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Ulm, Germany
- Natural History Museum, Obafemi Awolowo University, Ile Ife, Osun State, Nigeria
| | - Kerstin Wilhelm
- Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Ulm, Germany
| | - Nadine Müller-Klein
- Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Ulm, Germany
| | - Dominik W Schmid
- Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Ulm, Germany
| | - Ramona Fleischer
- Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Ulm, Germany
| | - Simone Sommer
- Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Ulm, Germany
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3
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Price SL, Thibault D, Garrison TM, Brady A, Guo H, Kehl‐Fie TE, Garneau‐Tsodikova S, Perry RD, van Opijnen T, Lawrenz MB. Droplet Tn-Seq identifies the primary secretion mechanism for yersiniabactin in Yersinia pestis. EMBO Rep 2023; 24:e57369. [PMID: 37501563 PMCID: PMC10561177 DOI: 10.15252/embr.202357369] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/07/2023] [Accepted: 07/14/2023] [Indexed: 07/29/2023] Open
Abstract
Nutritional immunity includes sequestration of transition metals from invading pathogens. Yersinia pestis overcomes nutritional immunity by secreting yersiniabactin to acquire iron and zinc during infection. While the mechanisms for yersiniabactin synthesis and import are well-defined, those responsible for yersiniabactin secretion are unknown. Identification of this mechanism has been difficult because conventional mutagenesis approaches are unable to inhibit trans-complementation by secreted factors between mutants. To overcome this obstacle, we utilized a technique called droplet Tn-seq (dTn-seq), which uses microfluidics to isolate individual transposon mutants in oil droplets, eliminating trans-complementation between bacteria. Using this approach, we first demonstrated the applicability of dTn-seq to identify genes with secreted functions. We then applied dTn-seq to identify an AcrAB efflux system as required for growth in metal-limited conditions. Finally, we showed this efflux system is the primary yersiniabactin secretion mechanism and required for virulence during bubonic and pneumonic plague. Together, these studies have revealed the yersiniabactin secretion mechanism that has eluded researchers for over 30 years and identified a potential therapeutic target for bacteria that use yersiniabactin for metal acquisition.
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Affiliation(s)
- Sarah L Price
- Department of Microbiology and ImmunologyUniversity of LouisvilleLouisvilleKYUSA
| | | | - Taylor M Garrison
- Department of Microbiology and ImmunologyUniversity of LouisvilleLouisvilleKYUSA
| | - Amanda Brady
- Department of Microbiology and ImmunologyUniversity of LouisvilleLouisvilleKYUSA
| | - Haixun Guo
- Center for Predictive Medicine for Biodefense and Emerging Infectious DiseasesUniversity of LouisvilleLouisvilleKYUSA
- Department of RadiologyUniversity of LouisvilleLouisvilleKYUSA
| | - Thomas E Kehl‐Fie
- Department of MicrobiologyUniversity of Illinois Urbana‐ChampaignChampaignILUSA
- Carl R Woese Institute for Genomic BiologyUrbanaILUSA
| | | | - Robert D Perry
- Department of Microbiology, Immunology and Molecular GeneticsUniversity of KentuckyLexingtonKYUSA
| | | | - Matthew B Lawrenz
- Department of Microbiology and ImmunologyUniversity of LouisvilleLouisvilleKYUSA
- Center for Predictive Medicine for Biodefense and Emerging Infectious DiseasesUniversity of LouisvilleLouisvilleKYUSA
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4
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Klunk J, Vilgalys TP, Demeure CE, Cheng X, Shiratori M, Madej J, Beau R, Elli D, Patino MI, Redfern R, DeWitte SN, Gamble JA, Boldsen JL, Carmichael A, Varlik N, Eaton K, Grenier JC, Golding GB, Devault A, Rouillard JM, Yotova V, Sindeaux R, Ye CJ, Bikaran M, Dumaine A, Brinkworth JF, Missiakas D, Rouleau GA, Steinrücken M, Pizarro-Cerdá J, Poinar HN, Barreiro LB. Evolution of immune genes is associated with the Black Death. Nature 2022; 611:312-319. [PMID: 36261521 PMCID: PMC9580435 DOI: 10.1038/s41586-022-05349-x] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 09/14/2022] [Indexed: 01/10/2023]
Abstract
Infectious diseases are among the strongest selective pressures driving human evolution1,2. This includes the single greatest mortality event in recorded history, the first outbreak of the second pandemic of plague, commonly called the Black Death, which was caused by the bacterium Yersinia pestis3. This pandemic devastated Afro-Eurasia, killing up to 30-50% of the population4. To identify loci that may have been under selection during the Black Death, we characterized genetic variation around immune-related genes from 206 ancient DNA extracts, stemming from two different European populations before, during and after the Black Death. Immune loci are strongly enriched for highly differentiated sites relative to a set of non-immune loci, suggesting positive selection. We identify 245 variants that are highly differentiated within the London dataset, four of which were replicated in an independent cohort from Denmark, and represent the strongest candidates for positive selection. The selected allele for one of these variants, rs2549794, is associated with the production of a full-length (versus truncated) ERAP2 transcript, variation in cytokine response to Y. pestis and increased ability to control intracellular Y. pestis in macrophages. Finally, we show that protective variants overlap with alleles that are today associated with increased susceptibility to autoimmune diseases, providing empirical evidence for the role played by past pandemics in shaping present-day susceptibility to disease.
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Affiliation(s)
- Jennifer Klunk
- McMaster Ancient DNA Centre, Departments of Anthropology, Biology and Biochemistry, McMaster University, Hamilton, Ontario, Canada
- Daicel Arbor Biosciences, Ann Arbor, MI, USA
| | - Tauras P Vilgalys
- Section of Genetic Medicine, Department of Medicine, University of Chicago, Chicago, IL, USA
| | | | - Xiaoheng Cheng
- Department of Ecology and Evolution, University of Chicago, Chicago, IL, USA
| | - Mari Shiratori
- Section of Genetic Medicine, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Julien Madej
- Yersinia Research Unit, Institut Pasteur, Paris, France
| | - Rémi Beau
- Yersinia Research Unit, Institut Pasteur, Paris, France
| | - Derek Elli
- Department of Microbiology, Ricketts Laboratory, University of Chicago, Lemont, IL, USA
| | - Maria I Patino
- Section of Genetic Medicine, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Rebecca Redfern
- Centre for Human Bioarchaeology, Museum of London, London, UK
| | - Sharon N DeWitte
- Department of Anthropology, University of South Carolina, Columbia, SC, USA
| | - Julia A Gamble
- Department of Anthropology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Jesper L Boldsen
- Department of Forensic Medicine, Unit of Anthropology (ADBOU), University of Southern Denmark, Odense S, Denmark
| | - Ann Carmichael
- History Department, Indiana University, Bloomington, IN, USA
| | - Nükhet Varlik
- Department of History, Rutgers University, Newark, NJ, USA
| | - Katherine Eaton
- McMaster Ancient DNA Centre, Departments of Anthropology, Biology and Biochemistry, McMaster University, Hamilton, Ontario, Canada
| | - Jean-Christophe Grenier
- Montreal Heart Institute, Faculty of Medicine, Université de Montréal, Montréal, Quebec, Canada
| | - G Brian Golding
- McMaster Ancient DNA Centre, Departments of Anthropology, Biology and Biochemistry, McMaster University, Hamilton, Ontario, Canada
| | | | - Jean-Marie Rouillard
- Daicel Arbor Biosciences, Ann Arbor, MI, USA
- Department of Chemical Engineering, University of Michigan - Ann Arbor, Ann Arbor, MI, USA
| | - Vania Yotova
- Centre Hospitalier Universitaire Sainte-Justine, Montréal, Quebec, Canada
| | - Renata Sindeaux
- Centre Hospitalier Universitaire Sainte-Justine, Montréal, Quebec, Canada
| | - Chun Jimmie Ye
- Division of Rheumatology, Department of Medicine, University of California, San Francisco, CA, USA
- Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - Matin Bikaran
- Division of Rheumatology, Department of Medicine, University of California, San Francisco, CA, USA
- Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - Anne Dumaine
- Section of Genetic Medicine, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Jessica F Brinkworth
- Department of Anthropology, University of Illinois Urbana-Champaign, Urbana, IL, USA
- Carl R Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Dominique Missiakas
- Department of Microbiology, Ricketts Laboratory, University of Chicago, Lemont, IL, USA
| | - Guy A Rouleau
- Montreal Neurological Institute-Hospital, McGill University, Montréal, Quebec, Canada
| | - Matthias Steinrücken
- Department of Ecology and Evolution, University of Chicago, Chicago, IL, USA
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
| | | | - Hendrik N Poinar
- McMaster Ancient DNA Centre, Departments of Anthropology, Biology and Biochemistry, McMaster University, Hamilton, Ontario, Canada.
- Michael G. DeGroote Institute of Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada.
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, Ontario, Canada.
| | - Luis B Barreiro
- Section of Genetic Medicine, Department of Medicine, University of Chicago, Chicago, IL, USA.
- Department of Human Genetics, University of Chicago, Chicago, IL, USA.
- Committee on Genetics, Genomics, and Systems Biology, University of Chicago, Chicago, IL, USA.
- Committee on Immunology, University of Chicago, Chicago, IL, USA.
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5
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Gibbons A. How the Black Death left its mark on immune system genes. Science 2022; 378:237-238. [PMID: 36264804 DOI: 10.1126/science.adf3947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Study of DNA from medieval victims and survivors finds gene that helped protect people from deadly pathogen.
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6
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Gopalakrishnan S, Ebenesersdóttir SS, Lundstrøm IKC, Turner-Walker G, Moore KHS, Luisi P, Margaryan A, Martin MD, Ellegaard MR, Magnússon ÓÞ, Sigurðsson Á, Snorradóttir S, Magnúsdóttir DN, Laffoon JE, van Dorp L, Liu X, Moltke I, Ávila-Arcos MC, Schraiber JG, Rasmussen S, Juan D, Gelabert P, de-Dios T, Fotakis AK, Iraeta-Orbegozo M, Vågene ÅJ, Denham SD, Christophersen A, Stenøien HK, Vieira FG, Liu S, Günther T, Kivisild T, Moseng OG, Skar B, Cheung C, Sandoval-Velasco M, Wales N, Schroeder H, Campos PF, Guðmundsdóttir VB, Sicheritz-Ponten T, Petersen B, Halgunset J, Gilbert E, Cavalleri GL, Hovig E, Kockum I, Olsson T, Alfredsson L, Hansen TF, Werge T, Willerslev E, Balloux F, Marques-Bonet T, Lalueza-Fox C, Nielsen R, Stefánsson K, Helgason A, Gilbert MTP. The population genomic legacy of the second plague pandemic. Curr Biol 2022; 32:4743-4751.e6. [PMID: 36182700 DOI: 10.1016/j.cub.2022.09.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/15/2022] [Accepted: 09/09/2022] [Indexed: 11/18/2022]
Abstract
Human populations have been shaped by catastrophes that may have left long-lasting signatures in their genomes. One notable example is the second plague pandemic that entered Europe in ca. 1,347 CE and repeatedly returned for over 300 years, with typical village and town mortality estimated at 10%-40%.1 It is assumed that this high mortality affected the gene pools of these populations. First, local population crashes reduced genetic diversity. Second, a change in frequency is expected for sequence variants that may have affected survival or susceptibility to the etiologic agent (Yersinia pestis).2 Third, mass mortality might alter the local gene pools through its impact on subsequent migration patterns. We explored these factors using the Norwegian city of Trondheim as a model, by sequencing 54 genomes spanning three time periods: (1) prior to the plague striking Trondheim in 1,349 CE, (2) the 17th-19th century, and (3) the present. We find that the pandemic period shaped the gene pool by reducing long distance immigration, in particular from the British Isles, and inducing a bottleneck that reduced genetic diversity. Although we also observe an excess of large FST values at multiple loci in the genome, these are shaped by reference biases introduced by mapping our relatively low genome coverage degraded DNA to the reference genome. This implies that attempts to detect selection using ancient DNA (aDNA) datasets that vary by read length and depth of sequencing coverage may be particularly challenging until methods have been developed to account for the impact of differential reference bias on test statistics.
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Affiliation(s)
- Shyam Gopalakrishnan
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark.
| | - S Sunna Ebenesersdóttir
- deCODE Genetics, AMGEN Inc., Sturlugata 8, 102 Reykjavík, Iceland; Department of Anthropology, School of Social Sciences, University of Iceland, Gimli, Sæmundargata, 102 Reykjavík, Iceland
| | - Inge K C Lundstrøm
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark
| | - Gordon Turner-Walker
- National Yunlin University of Science & Technology, 123 University Road, Section 3, 64002 Douliu, Yun-Lin County, Taiwan; Department of Archaeology and Anthropology, National Museum of Natural Science, 1 Guanqian Road, North District Taichung City 404023, Taiwan
| | | | - Pierre Luisi
- Facultad de Filosofía y Humanidades, Universidad Nacional de Córdoba, Córdoba, Argentina; Microbial Paleogenomics Unit, Institut Pasteur, 25-28 Rue du Dr Roux, 75015 Paris, France
| | - Ashot Margaryan
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark
| | - Michael D Martin
- NTNU University Museum, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
| | - Martin Rene Ellegaard
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark; NTNU University Museum, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
| | | | | | | | | | - Jason E Laffoon
- Department of Archaeological Sciences, Faculty of Archaeology, Leiden University, Leiden, the Netherlands
| | - Lucy van Dorp
- UCL Genetics Institute, Department of Genetics, Evolution and Environment, University College London, Darwin Building, Gower Street, London WC1E 6BT, UK
| | - Xiaodong Liu
- Department of Biology, University of Copenhagen, Ole Maaløes Vej 5, 2200 Copenhagen, Denmark
| | - Ida Moltke
- Department of Biology, University of Copenhagen, Ole Maaløes Vej 5, 2200 Copenhagen, Denmark
| | - María C Ávila-Arcos
- International Laboratory for Human Genome Research, Laboratorio Internacional de Investigación sobre el Genoma Humano (LIIGH), Universidad Nacional Autónoma de México (UNAM), 3001 Boulevard Juriquilla, 76230 Querétaro, Mexico
| | - Joshua G Schraiber
- Illumina Artificial Intelligence Laboratory, Illumina Inc., San Diego, CA, USA
| | - Simon Rasmussen
- Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Blegdamsvej 3, 2200 Copenhagen, Denmark
| | - David Juan
- Institute of Evolutionary Biology (UPF-CSIC), PRBB, Dr. Aiguader 88, 08003 Barcelona, Spain
| | - Pere Gelabert
- Institute of Evolutionary Biology (UPF-CSIC), PRBB, Dr. Aiguader 88, 08003 Barcelona, Spain; Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Toni de-Dios
- Institute of Evolutionary Biology (UPF-CSIC), PRBB, Dr. Aiguader 88, 08003 Barcelona, Spain
| | - Anna K Fotakis
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark
| | - Miren Iraeta-Orbegozo
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark
| | - Åshild J Vågene
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark; Max Planck Institute for the Science of Human History, Kahlaische Strasse 10, 07745 Jena, Germany; Institute for Archaeological Sciences, University of Tübingen, Tübingen, Germany
| | | | - Axel Christophersen
- NTNU University Museum, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
| | - Hans K Stenøien
- NTNU University Museum, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
| | - Filipe G Vieira
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark
| | - Shanlin Liu
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark; China National GeneBank, BGI-Shenzhen, Shenzhen 518083, China
| | - Torsten Günther
- Evolutionsbiologisk Centrum EBC, Norbyv. 18A, 752 36 Uppsala, Sweden
| | - Toomas Kivisild
- KU Leuven, Herestraat 49, 3000 Leuven, Belgium; Institute of Genomics, University of Tartu, Riia 23b, 51010 Tartu, Estonia
| | - Ole Georg Moseng
- Department of Business, History and Social Sciences, University of South-Eastern Norway, Notodden, Norway
| | - Birgitte Skar
- NTNU University Museum, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
| | - Christina Cheung
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark; EA - Eco-anthropologie (UMR 7206), Muséum National d'Histoire Naturelle, CNRS, Université Paris Diderot, Paris, France
| | - Marcela Sandoval-Velasco
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark
| | - Nathan Wales
- Department of Archaeology, Kings Manor and Principals House, University of York, Exhibition Square, York YO1 7EP, UK
| | - Hannes Schroeder
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark
| | - Paula F Campos
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark; CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, Matosinhos, Portugal
| | - Valdís B Guðmundsdóttir
- deCODE Genetics, AMGEN Inc., Sturlugata 8, 102 Reykjavík, Iceland; Department of Anthropology, School of Social Sciences, University of Iceland, Gimli, Sæmundargata, 102 Reykjavík, Iceland
| | - Thomas Sicheritz-Ponten
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark; Centre of Excellence for Omics-Driven Computational Biodiscovery (COMBio), Faculty of Applied Sciences, Asian Institute of Medicine, Science and Technology (AIMST), 08100 Bedong, Kedah, Malaysia
| | - Bent Petersen
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark; Centre of Excellence for Omics-Driven Computational Biodiscovery (COMBio), Faculty of Applied Sciences, Asian Institute of Medicine, Science and Technology (AIMST), 08100 Bedong, Kedah, Malaysia
| | | | - Edmund Gilbert
- School of Pharmacy and Biomolecular Sciences, RCSI, Dublin, Ireland; FutureNeuro SFI Research Centre, RCSI, Dublin, Ireland
| | - Gianpiero L Cavalleri
- School of Pharmacy and Biomolecular Sciences, RCSI, Dublin, Ireland; FutureNeuro SFI Research Centre, RCSI, Dublin, Ireland
| | - Eivind Hovig
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway; Center for Bioinformatics, Department of Informatics, University of Oslo, Oslo, Norway
| | - Ingrid Kockum
- Center for Molecular Medicine, Department of Clinical Neuroscience, Neuroimmunology Unit, Karolinska Institutet, Stockholm, Sweden
| | - Tomas Olsson
- Center for Molecular Medicine, Department of Clinical Neuroscience, Neuroimmunology Unit, Karolinska Institutet, Stockholm, Sweden
| | - Lars Alfredsson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Thomas F Hansen
- Institute of Biological Psychiatry, Copenhagen Mental Health Services, Copenhagen, Denmark; Danish Headache Center, Department of Neurology, Copenhagen University Hospital, 2600 Glostrup, Denmark
| | - Thomas Werge
- Institute of Biological Psychiatry, Copenhagen Mental Health Services, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Copenhagen, Denmark; The Globe Institute, Lundbeck Foundation Center for Geogenetics, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
| | - Eske Willerslev
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark; Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
| | - Francois Balloux
- UCL Genetics Institute, Department of Genetics, Evolution and Environment, University College London, Darwin Building, Gower Street, London WC1E 6BT, UK
| | - Tomas Marques-Bonet
- Institute of Evolutionary Biology (UPF-CSIC), PRBB, Dr. Aiguader 88, 08003 Barcelona, Spain; Catalan Institution of Research and Advanced Studies (ICREA), Passeig de Lluís Companys, 23, 08010 Barcelona, Spain; CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, 08028 Barcelona, Spain; Institut Català de Paleontologia Miquel Crusafont, Universitat Autònoma de Barcelona, Edifici ICTA-ICP, c/ Columnes s/n, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Carles Lalueza-Fox
- Institute of Evolutionary Biology (UPF-CSIC), PRBB, Dr. Aiguader 88, 08003 Barcelona, Spain; Museu de Ciències Naturals de Barcelona, 08019 Barcelona, Spain
| | - Rasmus Nielsen
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark; Department of Integrative Biology, University of California, Berkeley, 3060 Valley Life Sciences Bldg #3140, Berkeley, CA 94720-3140, USA
| | - Kári Stefánsson
- deCODE Genetics, AMGEN Inc., Sturlugata 8, 102 Reykjavík, Iceland; Faculty of Medicine, University of Iceland, Reykjavík, Iceland
| | - Agnar Helgason
- deCODE Genetics, AMGEN Inc., Sturlugata 8, 102 Reykjavík, Iceland; Department of Anthropology, School of Social Sciences, University of Iceland, Gimli, Sæmundargata, 102 Reykjavík, Iceland
| | - M Thomas P Gilbert
- The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Øster Farimagsgade 5A, 1353 Copenhagen, Denmark; NTNU University Museum, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
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7
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Bramanti B, Wu Y, Yang R, Cui Y, Stenseth NC. Assessing the origins of the European Plagues following the Black Death: A synthesis of genomic, historical, and ecological information. Proc Natl Acad Sci U S A 2021; 118:e2101940118. [PMID: 34465619 PMCID: PMC8433512 DOI: 10.1073/pnas.2101940118] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The second plague pandemic started in Europe with the Black Death in 1346 and lasted until the 19th century. Based on ancient DNA studies, there is a scientific disagreement over whether the bacterium, Yersinia pestis, came into Europe once (Hypothesis 1) or repeatedly over the following four centuries (Hypothesis 2). Here, we synthesize the most updated phylogeny together with historical, archeological, evolutionary, and ecological information. On the basis of this holistic view, we conclude that Hypothesis 2 is the most plausible. We also suggest that Y. pestis lineages might have developed attenuated virulence during transmission, which can explain the convergent evolutionary signals, including pla decay, that appeared at the end of the pandemics.
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Affiliation(s)
- Barbara Bramanti
- Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway;
- Department of Neuroscience and Rehabilitation, Faculty of Medicine, Pharmacy and Prevention, University of Ferrara, 44121 Ferrara, Italy
| | - Yarong Wu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Ruifu Yang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Yujun Cui
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China;
| | - Nils Chr Stenseth
- Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway;
- Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing 100084, China
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8
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Xu L, Stige LC, Leirs H, Neerinckx S, Gage KL, Yang R, Liu Q, Bramanti B, Dean KR, Tang H, Sun Z, Stenseth NC, Zhang Z. Historical and genomic data reveal the influencing factors on global transmission velocity of plague during the Third Pandemic. Proc Natl Acad Sci U S A 2019; 116:11833-11838. [PMID: 31138696 PMCID: PMC6584904 DOI: 10.1073/pnas.1901366116] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Quantitative knowledge about which natural and anthropogenic factors influence the global spread of plague remains sparse. We estimated the worldwide spreading velocity of plague during the Third Pandemic, using more than 200 years of extensive human plague case records and genomic data, and analyzed the association of spatiotemporal environmental factors with spreading velocity. Here, we show that two lineages, 2.MED and 1.ORI3, spread significantly faster than others, possibly reflecting differences among strains in transmission mechanisms and virulence. Plague spread fastest in regions with low population density and high proportion of pasture- or forestland, findings that should be taken into account for effective plague monitoring and control. Temperature exhibited a nonlinear, U-shaped association with spread speed, with a minimum around 20 °C, while precipitation showed a positive association. Our results suggest that global warming may accelerate plague spread in warm, tropical regions and that the projected increased precipitation in the Northern Hemisphere may increase plague spread in relevant regions.
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Affiliation(s)
- Lei Xu
- State Key Laboratory of Integrated Management on Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, 100101 Beijing, China
- Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 102206 Beijing, China
- Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, 100084 Beijing, China
| | - Leif C Stige
- Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway
| | - Herwig Leirs
- Evolutionary Ecology Group, Department of Biology, University of Antwerp, 2020 Antwerp, Belgium
| | - Simon Neerinckx
- Evolutionary Ecology Group, Department of Biology, University of Antwerp, 2020 Antwerp, Belgium
| | - Kenneth L Gage
- Bacterial Diseases Branch, Division of Vector-Borne Disease, Centers for Disease Control and Prevention, Fort Collins, CO 80523
| | - Ruifu Yang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 100071 Beijing, China
| | - Qiyong Liu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 102206 Beijing, China
| | - Barbara Bramanti
- Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway
| | - Katharine R Dean
- Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway
| | - Hui Tang
- Department of Geosciences, University of Oslo, N-0316 Oslo, Norway
| | - Zhe Sun
- Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway
- Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, 100084 Beijing, China
| | - Nils Chr Stenseth
- Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway;
- Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, 100084 Beijing, China
| | - Zhibin Zhang
- State Key Laboratory of Integrated Management on Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, 100101 Beijing, China;
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9
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Chakraborty N, Gautam A, Muhie S, Miller SA, Moyler C, Jett M, Hammamieh R. The responses of lungs and adjacent lymph nodes in responding to Yersinia pestis infection: A transcriptomic study using a non-human primate model. PLoS One 2019; 14:e0209592. [PMID: 30789917 PMCID: PMC6383991 DOI: 10.1371/journal.pone.0209592] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 12/08/2018] [Indexed: 01/08/2023] Open
Abstract
Initiation of treatment during the pre-symptomatic phase of Yersinia pestis (Y. pestis) infection is particularly critical. The rapid proliferation of Y. pestis typically couples with the manifestation of common flu-like early symptoms that often misguides the medical intervention. Our study used African green monkeys (AGM) that did not exhibit clear clinical symptoms for nearly two days after intranasal challenge with Y. pestis and succumbed within a day after showing the first signs of clinical symptoms. The lung, and mediastinal and submandibular lymph nodes (LN) accumulated significant Y. pestis colonization immediately after the intranasal challenge. Hence, organ-specific molecular investigations are deemed to be the key to elucidating mechanisms of the initial host response. Our previous study focused on the whole blood of AGM, and we found early perturbations in the ubiquitin-microtubule-mediated host defense. Altered expression of the genes present in ubiquitin and microtubule networks indicated an early suppression of these networks in the submandibular lymph nodes. In concert, the upstream toll-like receptor signaling and downstream NFκB signaling were inhibited at the multi-omics level. The inflammatory response was suppressed in the lungs, submandibular lymph nodes and mediastinal lymph nodes. We posited a causal chain of molecular mechanisms that indicated Y. pestis was probably able to impair host-mediated proteolysis activities and evade autophagosome capture by dysregulating both ubiquitin and microtubule networks in submandibular lymph nodes. Targeting these networks in a submandibular LN-specific and time-resolved fashion could be essential for development of the next generation therapeutics for pneumonic plague.
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Affiliation(s)
- Nabarun Chakraborty
- The Geneva Foundation, US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
| | - Aarti Gautam
- US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
| | - Seid Muhie
- The Geneva Foundation, US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
| | - Stacy-Ann Miller
- ORISE, US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
| | - Candace Moyler
- ORISE, US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
| | - Marti Jett
- US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
| | - Rasha Hammamieh
- US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
- * E-mail:
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Yan J, Chen H, Lin G, Li Q, Chen J, Qin W, Su J, Zhang T. Genetic evidence for subspecies differentiation of the Himalayan marmot, Marmota himalayana, in the Qinghai-Tibet Plateau. PLoS One 2017; 12:e0183375. [PMID: 28809943 PMCID: PMC5557547 DOI: 10.1371/journal.pone.0183375] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 08/02/2017] [Indexed: 01/14/2023] Open
Abstract
The primary host of plague in the Qinghai-Tibet Plateau (QTP), China, is Marmota himalayana, which plays an essential role in the maintenance, transmission, and prevalence of plague. To achieve a more clear insight into the differentiation of M. himalayana, complete cytochrome b (cyt b) gene and 11 microsatellite loci were analyzed for a total of 423 individuals from 43 localities in the northeast of the QTP. Phylogenetic analyses with maximum likelihood and Bayesian inference methods showed that all derived haplotypes diverged into two primary well-supported monophyletic lineages, I and II, which corresponded to the referential sequences of two recognized subspecies, M. h. himalayana and M. h. robusta, respectively. The divergence between the two lineages was estimated to be at about 1.03 million years ago, nearly synchronously with the divergence between M. baibacina and M. kastschenkoi and much earlier than that between M. vancouverensis and M. caligata. Genetic structure analyses based on the microsatellite dataset detected significant admixture between the two lineages in the mixed region, which verified the intraspecies level of the differentiation between the two lineages. Our results for the first time demonstrated the coexistence of M. h. himalayana and M. h. robusta, and also, determined the distribution range of the two subspecies in the northeast of QTP. We provided fundamental information for more effective plague control in the QTP.
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Affiliation(s)
- Jingyan Yan
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Hongjian Chen
- Qinghai Institute for Endemic Disease Prevention and Control, Xining, Qinghai, China
| | - Gonghua Lin
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
| | - Qian Li
- Qinghai Institute for Endemic Disease Prevention and Control, Xining, Qinghai, China
| | - Jiarui Chen
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
| | - Wen Qin
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
| | - Jianping Su
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
- * E-mail: (JS); (TZ)
| | - Tongzuo Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
- * E-mail: (JS); (TZ)
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11
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Serdyuk NS, Evchenko YM, Kuznetsova IV, Zhilchenko EB, Zharinova NV, Konyaeva OA, Mezentsev VM, Volynkina AS, Kotenev ES, Platonov ME, Anisimov AP, Kulichenko AN. [DETERMINATION OF PHYLOGENETIC RELATIONSHIP OF YERSINIA PESTIS STRAINS FROM NATURAL PLAGUE FOCI OF THE CAUCASUS BY MULTI-LO- CUS VNTR-ANALYSIS]. Zh Mikrobiol Epidemiol Immunobiol 2017:35-41. [PMID: 30695484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
AIM Determination of the degree of phylogenetic relationship of Yersinia pestis strains iso- lated from the territories of natural foci of plague from the Caucasus using VNTR-typing by 25 loci (MLVA25). MATERIALS AND METHODS 26 strains of Y pestis from Russian natural foci of the Caucasus were used in the study. 25 loci of tandem repeats in Y pestis genome by Le Fleche scheme were used for execution of multi-locus VNTR-analysis. Deciphering of nucleotide sequences was carried out in automatic sequencer ABI 3130 Genetic Analyser. Analysis of confinement of clusters to certain territories, objects and time of isolation of strains was carried out. using Arc GIS 10.1 program. RESULTS Groups of MLVA25-types of various levels of discrimination were formed: clusters, groups and subgroups. Clusters were formed by strains ofvarious taxonomic membership: main and subspecies of Y pestis. Subgroups reflect membership of strains in certain foci, and MLVA25-types - the degree of genetic relationship. CONCLUSION Genetic <<portraits>> of plague causative agents obtained using MLVA25-types circulating in various natural-focal territories allow to solve problems ofboth theoretical and practical character: from interpretation of microevolution processes to the search of the source of infection and ways of its spread during possible epidemic complications.
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12
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Li N, Hennelly SP, Stubben CJ, Micheva-Viteva S, Hu B, Shou Y, Vuyisich M, Tung CS, Chain PS, Sanbonmatsu KY, Hong-Geller E. Functional and Structural Analysis of a Highly-Expressed Yersinia pestis Small RNA following Infection of Cultured Macrophages. PLoS One 2016; 11:e0168915. [PMID: 28030576 PMCID: PMC5193452 DOI: 10.1371/journal.pone.0168915] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 12/08/2016] [Indexed: 11/25/2022] Open
Abstract
Non-coding small RNAs (sRNAs) are found in practically all bacterial genomes and play important roles in regulating gene expression to impact bacterial metabolism, growth, and virulence. We performed transcriptomics analysis to identify sRNAs that are differentially expressed in Yersinia pestis that invaded the human macrophage cell line THP-1, compared to pathogens that remained extracellular in the presence of host. Using ultra high-throughput sequencing, we identified 37 novel and 143 previously known sRNAs in Y. pestis. In particular, the sRNA Ysr170 was highly expressed in intracellular Yersinia and exhibited a log2 fold change ~3.6 higher levels compared to extracellular bacteria. We found that knock-down of Ysr170 expression attenuated infection efficiency in cell culture and growth rate in response to different stressors. In addition, we applied selective 2’-hydroxyl acylation analyzed by primer extension (SHAPE) analysis to determine the secondary structure of Ysr170 and observed structural changes resulting from interactions with the aminoglycoside antibiotic gentamycin and the RNA chaperone Hfq. Interestingly, gentamicin stabilized helix 4 of Ysr170, which structurally resembles the native gentamicin 16S ribosomal binding site. Finally, we modeled the tertiary structure of Ysr170 binding to gentamycin using RNA motif modeling. Integration of these experimental and structural methods can provide further insight into the design of small molecules that can inhibit function of sRNAs required for pathogen virulence.
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Affiliation(s)
- Nan Li
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Scott P. Hennelly
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Chris J. Stubben
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Sofiya Micheva-Viteva
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Bin Hu
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Yulin Shou
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Momchilo Vuyisich
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Chang-Shung Tung
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Patrick S. Chain
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Karissa Y. Sanbonmatsu
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Elizabeth Hong-Geller
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
- * E-mail:
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13
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Afanas’ev MV, Balakhonov SV, Tokmakova EG, Polovinkina VS, Sidorova EA, Sinkov VV. [Analysis of complete sequence of cryptic plasmid pTP33 from Yersinia pestis isolated in Tuva natural focus of plague]. Genetika 2016; 52:1012-1020. [PMID: 29369556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This paper studies a full nucleotide sequence of cryptic plasmid pTP33, which was isolated from the typical plague strain of the Tuvinian natural focus, Yersinia pestis I-2638. Sequencing was carried out using the 454 GS Junior platform (Roche). In analysis using the software package GS De Novo Assembler v. 2.7 (Roche) and the algorithm Newbler v. 2.7, 1855 nucleotide reads, which contained 1101246 nucleotides, were assembled to a contig of 33 978 bp. The GC content of the obtained nucleotide sequence was 50.25%. During annotation, we found 56 open reading frames. Homologs of the predicted reading frames were sought in the BLAST databases. We detected 22 reading frames coding hypothetical proteins, 23 frames coding phagerelated proteins, and 11 frames coding proteins with known functions, including toxin–antitoxin system YefM-YoeB, nucleic acids and polysaccharides metabolism proteins (exopolysaccharide production protein ExoZ, exodeoxyribonuclease VIII), and replication proteins (ParA). Some predicted pTP33 proteins were found to be homologs (from 45 to 75%) with sequences of phage-related proteins of certain microorganisms—endosymbionts of insects (Sodalis glossinidius) and endosymbionts of entomopathogenic nematodes (Photorhabdus luminescens, P. asymbiotica, Xenorhabdus bovienii).
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Seifert L, Wiechmann I, Harbeck M, Thomas A, Grupe G, Projahn M, Scholz HC, Riehm JM. Genotyping Yersinia pestis in Historical Plague: Evidence for Long-Term Persistence of Y. pestis in Europe from the 14th to the 17th Century. PLoS One 2016; 11:e0145194. [PMID: 26760973 PMCID: PMC4712009 DOI: 10.1371/journal.pone.0145194] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 12/01/2015] [Indexed: 12/19/2022] Open
Abstract
Ancient DNA (aDNA) recovered from plague victims of the second plague pandemic (14th to 17th century), excavated from two different burial sites in Germany, and spanning a time period of more than 300 years, was characterized using single nucleotide polymorphism (SNP) analysis. Of 30 tested skeletons 8 were positive for Yersinia pestis-specific nucleic acid, as determined by qPCR targeting the pla gene. In one individual (MP-19-II), the pla copy number in DNA extracted from tooth pulp was as high as 700 gene copies/μl, indicating severe generalized infection. All positive individuals were identical in all 16 SNP positions, separating phylogenetic branches within nodes N07_N10 (14 SNPs), N07_N08 (SNP s19) and N06_N07 (s545), and were highly similar to previously investigated plague victims from other European countries. Thus, beside the assumed continuous reintroduction of Y. pestis from central Asia in multiple waves during the second pandemic, long-term persistence of Y. pestis in Europe in a yet unknown reservoir host has also to be considered.
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Affiliation(s)
- Lisa Seifert
- Ludwig Maximilian University of Munich, Munich, Germany
| | | | - Michaela Harbeck
- State Collection for Anthropology and Palaeoanatomy, Munich, Germany
| | - Astrid Thomas
- Bundeswehr Institute of Microbiology, Munich, Germany
| | - Gisela Grupe
- Ludwig Maximilian University of Munich, Munich, Germany
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Abstract
BACKGROUND We propose the computational reconstruction of a whole bacterial ancestral genome at the nucleotide scale, and its validation by a sequence of ancient DNA. This rare possibility is offered by an ancient sequence of the late middle ages plague agent. It has been hypothesized to be ancestral to extant Yersinia pestis strains based on the pattern of nucleotide substitutions. But the dynamics of indels, duplications, insertion sequences and rearrangements has impacted all genomes much more than the substitution process, which makes the ancestral reconstruction task challenging. RESULTS We use a set of gene families from 13 Yersinia species, construct reconciled phylogenies for all of them, and determine gene orders in ancestral species. Gene trees integrate information from the sequence, the species tree and gene order. We reconstruct ancestral sequences for ancestral genic and intergenic regions, providing nearly a complete genome sequence for the ancestor, containing a chromosome and three plasmids. CONCLUSION The comparison of the ancestral and ancient sequences provides a unique opportunity to assess the quality of ancestral genome reconstruction methods. But the quality of the sequencing and assembly of the ancient sequence can also be questioned by this comparison.
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Affiliation(s)
- Wandrille Duchemin
- Laboratoire de Biométrie et Biologie Évolutive, LBBE, UMR CNRS 5558, University of Lyon 1, 43 boulevard du 11 novembre 1918, 69622 Villeurbanne, France
| | - Vincent Daubin
- Laboratoire de Biométrie et Biologie Évolutive, LBBE, UMR CNRS 5558, University of Lyon 1, 43 boulevard du 11 novembre 1918, 69622 Villeurbanne, France
| | - Eric Tannier
- Laboratoire de Biométrie et Biologie Évolutive, LBBE, UMR CNRS 5558, University of Lyon 1, 43 boulevard du 11 novembre 1918, 69622 Villeurbanne, France
- Institut National de Recherche en Informatique et en Automatique (INRIA) Grenoble Rhône-Alpes, 655 avenue de l'Europe, 38330 Montbonnot, France
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16
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Vadyvaloo V, Hinz AK. A LysR-Type Transcriptional Regulator, RovM, Senses Nutritional Cues Suggesting that It Is Involved in Metabolic Adaptation of Yersinia pestis to the Flea Gut. PLoS One 2015; 10:e0137508. [PMID: 26348850 PMCID: PMC4562620 DOI: 10.1371/journal.pone.0137508] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 08/17/2015] [Indexed: 11/18/2022] Open
Abstract
Yersinia pestis has evolved as a clonal variant of Yersinia pseudotuberculosis to cause flea-borne biofilm–mediated transmission of the bubonic plague. The LysR-type transcriptional regulator, RovM, is highly induced only during Y. pestis infection of the flea host. RovM homologs in other pathogens regulate biofilm formation, nutrient sensing, and virulence; including in Y. pseudotuberculosis, where RovM represses the major virulence factor, RovA. Here the role that RovM plays during flea infection was investigated using a Y. pestis KIM6+ strain deleted of rovM, ΔrovM. The ΔrovM mutant strain was not affected in characteristic biofilm gut blockage, growth, or survival during single infection of fleas. Nonetheless, during a co-infection of fleas, the ΔrovM mutant exhibited a significant competitive fitness defect relative to the wild type strain. This competitive fitness defect was restored as a fitness advantage relative to the wild type in a ΔrovM mutant complemented in trans to over-express rovM. Consistent with this, Y. pestis strains, producing elevated transcriptional levels of rovM, displayed higher growth rates, and differential ability to form biofilm in response to specific nutrients in comparison to the wild type. In addition, we demonstrated that rovA was not repressed by RovM in fleas, but that elevated transcriptional levels of rovM in vitro correlated with repression of rovA under specific nutritional conditions. Collectively, these findings suggest that RovM likely senses specific nutrient cues in the flea gut environment, and accordingly directs metabolic adaptation to enhance flea gut colonization by Y. pestis.
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Affiliation(s)
- Viveka Vadyvaloo
- Paul G. Allen School for Global Animal Health, Washington State University, Pullman, Washington, 99164, United States of America
- * E-mail:
| | - Angela K. Hinz
- Paul G. Allen School for Global Animal Health, Washington State University, Pullman, Washington, 99164, United States of America
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17
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Suntsov VV. [On the origin of Yersinia pestis, a causative agent of the plague: A concept of population-genetic macroevolution in transitive environment]. Zh Obshch Biol 2015; 76:310-318. [PMID: 26353398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An ecological scenario is proposed for the origin of causative agent of the plague (the bacterium Yersenia pestis) from the clone of pseudotuberculous microbe of the first serotype Y. pseudotuberculosis O:1b. Disclosed are the conditions of gradual intrusion of psychrophile saprozoonosis ancestor into the blood of the primary host, Mongolian tarbagan marmot Marmota sibirica. As an inductor of speciation acted the Sartan cooling that occurred in the end of late Pleistocene under conditions of arid ultra-continental climate in Central Asia. Soil freezing down to the level of hibernating chambers in marmot burrows initiated the transition of marmot flea, Oropsylla silantiewi, larvae to optional hemophagy on the mucous coat inside the mouth cavity of sleeping marmots. In its turn, this promoted the conditions of mass traumatic intrusion of Y pseudotuberculosis into marmots bloodstream from faecal particles getting in their mouth cavity in course of building up a plug in a burrow for hibernating. In marmot populations, the selection of bacteria underwent under conditions of heterothermy with repeated changes of hibernating marmots body temperature within the range of 5-37 degrees C (torpor-euthermy). During the warm season, when pseudotuberculous microbes are totally eliminated from the bloodstream of healthy marmots with body temperature about 37 degrees C, bacteria could survive in fleas' digestive tract in the form of biofilm developing in proventriculus as a so called blockage. Final isolation between ancestral and daughter species was helped by the development of intrapopulation antagonism related with the beginning of full-scale synthesis of bacteriocin pesticin. Population-genetic processes in the "marmot-flea" system have led to a macroevolutionary event, that is, to passage of bacteria in a new ecological niche and adaptive zone that are principally different from those of the ancestor. All the present intraspecies forms of Y. pestis that appeared due to microevolution, have originated with the subspecies Y. pestis tarbagani that has formed in Central Asia during the Sartan cooling.
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Kukleva LM, Shavina NY, Odinokov GN, Oglodin EG, Nosov NY, Vinogradova NA, Guseva NP, Eroshenko GA, Kutyrev VV. [Analysis of diversity and identification of the genovariants of plague agent strains from Mongolian foci]. Genetika 2015; 51:298-305. [PMID: 26027368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The genetic diversity of Yersinia pestis strains from the Mongolian natural plague foci has been investigated. A total of 32 strains isolated from western, eastern, and central aimaks, as well as from the territory of the Gobi region, have been studied. Twenty-four strains belong to the main Y. pestis subspecies, while eight belong to other subspecies. There is only one strain of biovar medievalis (genovariant 2.MED1) among the strains of the main subspecies, while the rest of the subspecies belong to the biovar antiqua. Biovar antiqua strains are split into three groups. Strains from the eastern part of the country were classified as genovariant 2.ANT3, and those from the western and central regions were classified as genovariant 3.ANT2, which was endemic for Mongolia. One strain from the Bayan-Ulegeiskii aimak had the rare genovariant 4.ANT. None of the strains of the biovar antiqua belonged to its ancient 0.ANT branch, which is inconsistent with the commonly accepted idea that ancient marmot's plague agent race originates from Mongolia. Six out of eight strains of the minor subspecies belonged to the ulegeica subspecies, which are endemic to Mongolia, one strain belonged to the microtus group, and the last belonged to a previously uncharacterized variant of the minor subspecies.
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Chouikha I, Hinnebusch BJ. Silencing urease: a key evolutionary step that facilitated the adaptation of Yersinia pestis to the flea-borne transmission route. Proc Natl Acad Sci U S A 2014; 111:18709-14. [PMID: 25453069 PMCID: PMC4284590 DOI: 10.1073/pnas.1413209111] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The arthropod-borne transmission route of Yersinia pestis, the bacterial agent of plague, is a recent evolutionary adaptation. Yersinia pseudotuberculosis, the closely related food-and water-borne enteric species from which Y. pestis diverged less than 6,400 y ago, exhibits significant oral toxicity to the flea vectors of plague, whereas Y. pestis does not. In this study, we identify the Yersinia urease enzyme as the responsible oral toxin. All Y. pestis strains, including those phylogenetically closest to the Y. pseudotuberculosis progenitor, contain a mutated ureD allele that eliminated urease activity. Restoration of a functional ureD was sufficient to make Y. pestis orally toxic to fleas. Conversely, deletion of the urease operon in Y. pseudotuberculosis rendered it nontoxic. Enzymatic activity was required for toxicity. Because urease-related mortality eliminates 30-40% of infective flea vectors, ureD mutation early in the evolution of Y. pestis was likely subject to strong positive selection because it significantly increased transmission potential.
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Affiliation(s)
- Iman Chouikha
- Laboratory of Zoonotic Pathogens, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840
| | - B Joseph Hinnebusch
- Laboratory of Zoonotic Pathogens, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840
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Bozue J, Cote CK, Chance T, Kugelman J, Kern SJ, Kijek TK, Jenkins A, Mou S, Moody K, Fritz D, Robinson CG, Bell T, Worsham P. A Yersinia pestis tat mutant is attenuated in bubonic and small-aerosol pneumonic challenge models of infection but not as attenuated by intranasal challenge. PLoS One 2014; 9:e104524. [PMID: 25101850 PMCID: PMC4125294 DOI: 10.1371/journal.pone.0104524] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 07/11/2014] [Indexed: 01/01/2023] Open
Abstract
Bacterial proteins destined for the Tat pathway are folded before crossing the inner membrane and are typically identified by an N-terminal signal peptide containing a twin arginine motif. Translocation by the Tat pathway is dependent on the products of genes which encode proteins possessing the binding site of the signal peptide and mediating the actual translocation event. In the fully virulent CO92 strain of Yersinia pestis, the tatA gene was deleted. The mutant was assayed for loss of virulence through various in vitro and in vivo assays. Deletion of the tatA gene resulted in several consequences for the mutant as compared to wild-type. Cell morphology of the mutant bacteria was altered and demonstrated a more elongated form. In addition, while cultures of the mutant strain were able to produce a biofilm, we observed a loss of adhesion of the mutant biofilm structure compared to the biofilm produced by the wild-type strain. Immuno-electron microscopy revealed a partial disruption of the F1 antigen on the surface of the mutant. The virulence of the ΔtatA mutant was assessed in various murine models of plague. The mutant was severely attenuated in the bubonic model with full virulence restored by complementation with the native gene. After small-particle aerosol challenge in a pneumonic model of infection, the mutant was also shown to be attenuated. In contrast, when mice were challenged intranasally with the mutant, very little difference in the LD50 was observed between wild-type and mutant strains. However, an increased time-to-death and delay in bacterial dissemination was observed in mice infected with the ΔtatA mutant as compared to the parent strain. Collectively, these findings demonstrate an essential role for the Tat pathway in the virulence of Y. pestis in bubonic and small-aerosol pneumonic infection but less important role for intranasal challenge.
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Affiliation(s)
- Joel Bozue
- Bacteriology Division, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
- * E-mail:
| | - Christopher K. Cote
- Bacteriology Division, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - Taylor Chance
- Pathology Division, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - Jeffrey Kugelman
- Center for Genome Sciences, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - Steven J. Kern
- Office of Research Support, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - Todd K. Kijek
- Bacteriology Division, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - Amy Jenkins
- Bacteriology Division, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - Sherry Mou
- Bacteriology Division, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - Krishna Moody
- Bacteriology Division, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - David Fritz
- Bacteriology Division, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - Camenzind G. Robinson
- Pathology Division, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - Todd Bell
- Pathology Division, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
| | - Patricia Worsham
- Bacteriology Division, The United States Army of Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, United States of America
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Afanas'ev MV, Ostiak AS, Balakhonov SV. [The approbation of technique of mass spectrometry with matrix-activated laser desorption/ionization for identification of plague agent]. Klin Lab Diagn 2014; 59:39-43. [PMID: 25552052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The study of sampling of strains of Y. pestis of main and altaic subspecies was implemented. The modern technique of identification of microorganisms was applied using MALDI-TOF mass spectrometry analysis. The evaluation of biological safety of method of sampling preparation was implemented. To supplement the identification base "BioTyper" the spectrum of typical strains of Y. pestis were obtained. The enhanced identification base was used to evaluate possibilities of application of MALDI-TOF technology for identification and taxonomic differentiation of Y. pestis from other representatives of genus of Yersinia. In the process of study a complete concordance of results of mass spectrometry identification and classic cultural method was observed. On the basis of mass spectrometry characteristic of analyzed sampling the differentiation between strains of Y. pestis of subspecies pestis and strains of subspecies altaica was implemented. The study results testify the effectiveness of application of mass spectrometry analysis for reliable interspecies and intraspecific differentiation of plague agent. The simplicity and velocity of sampling preparation and implementation of analysis and low cost of active storage allow considering the MALDI-TOF technology of mass spectrometry identification as highly perspective method for laboratory diagnostic of plague agent.
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Du Z, Yang H, Tan Y, Tian G, Zhang Q, Cui Y, Yanfeng Yan, Wu X, Chen Z, Cao S, Bi Y, Han Y, Wang X, Song Y, Yang R. Transcriptomic response to Yersinia pestis: RIG-I like receptor signaling response is detrimental to the host against plague. J Genet Genomics 2014; 41:379-96. [PMID: 25064677 DOI: 10.1016/j.jgg.2014.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 05/09/2014] [Accepted: 05/14/2014] [Indexed: 02/07/2023]
Abstract
Bacterial pathogens have evolved various mechanisms to modulate host immune responses for successful infection. In this study, RNA-sequencing technology was used to analyze the responses of human monocytes THP1 to Yersinia pestis infection. Over 6000 genes were differentially expressed over the 12 h infection. Kinetic responses of pathogen recognition receptor signaling pathways, apoptosis, antigen processing, and presentation pathway and coagulation system were analyzed in detail. Among them, RIG-I-like receptor (RLR) signaling pathway, which was established for antiviral defense, was significantly affected. Mice lacking MAVS, the adaptor of the RLR signaling pathway, were less sensitive to infection and exhibited lower IFN-β production, higher Th1-type cytokines IFN-γ and IL-12 production, and lower Th2-type cytokines IL-4 and IL-13 production in the serum compared with wild-type mice. Moreover, infection of pathogenic bacteria other than Y. pestis also altered the expression of the RLR pathway, suggesting that the response of RLR pathway to bacterial infection is a universal mechanism.
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Affiliation(s)
- Zongmin Du
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China.
| | - Huiying Yang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Yafang Tan
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Guang Tian
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Qingwen Zhang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Xining 811602, China
| | - Yujun Cui
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Yanfeng Yan
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Xiaohong Wu
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | | | - Shiyang Cao
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Yujing Bi
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Yanping Han
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Xiaoyi Wang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Yajun Song
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Ruifu Yang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China.
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Piga M, Mathieu A. The origin of Behçet's disease geoepidemiology: possible role of a dual microbial-driven genetic selection. Clin Exp Rheumatol 2014; 32:S123-S129. [PMID: 24447390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 09/13/2013] [Indexed: 06/03/2023]
Abstract
It is recognised that the genetic profiles that give rise to chronic inflammatory diseases, under the influence of environmental agents, might have been implicated in the host defence mechanism against lethal infections in the past. Behçet's disease (BD) is an immune-mediated inflammatory disease, expressed as vasculitis, triggered by environmental factors in genetically susceptible individuals. We carried out a review of published data to draw up an evolutionary adaptation model, as Author's perspective, for genetic susceptibility factors and inflammatory immune response involved in BD pathogenesis. Two lethal infectious agents, Plasmodium Falciparum and Yersinia Pestis, are proposed as the putative driving forces that favoured the fixing of the major genetic susceptibility factors to BD, thus determining its geoepidemiology. Further studies are needed to confirm the validity of this evolutionary model which includes and integrates the key insights of previous hypotheses.
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Affiliation(s)
- Matteo Piga
- Chair of Rheumatology and Rheumatology Unit, University and AOU of Cagliari, Cagliari, Italy.
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24
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Szaba FM, Kummer LW, Duso DK, Koroleva EP, Tumanov AV, Cooper AM, Bliska JB, Smiley ST, Lin JS. TNFα and IFNγ but not perforin are critical for CD8 T cell-mediated protection against pulmonary Yersinia pestis infection. PLoS Pathog 2014; 10:e1004142. [PMID: 24854422 PMCID: PMC4031182 DOI: 10.1371/journal.ppat.1004142] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 04/07/2014] [Indexed: 11/18/2022] Open
Abstract
Septic pneumonias resulting from bacterial infections of the lung are a leading cause of human death worldwide. Little is known about the capacity of CD8 T cell-mediated immunity to combat these infections and the types of effector functions that may be most effective. Pneumonic plague is an acutely lethal septic pneumonia caused by the Gram-negative bacterium Yersinia pestis. We recently identified a dominant and protective Y. pestis antigen, YopE69-77, recognized by CD8 T cells in C57BL/6 mice. Here, we use gene-deficient mice, Ab-mediated depletion, cell transfers, and bone marrow chimeric mice to investigate the effector functions of YopE69-77-specific CD8 T cells and their relative contributions during pulmonary Y. pestis infection. We demonstrate that YopE69-77-specific CD8 T cells exhibit perforin-dependent cytotoxicity in vivo; however, perforin is dispensable for YopE69-77-mediated protection. In contrast, YopE69-77-mediated protection is severely impaired when production of TNFα and IFNγ by CD8 T cells is simultaneously ablated. Interestingly, TNFα is absolutely required at the time of challenge infection and can be provided by either T cells or non-T cells, whereas IFNγ provided by T cells prior to challenge appears to facilitate the differentiation of optimally protective CD8 T cells. We conclude that cytokine production, not cytotoxicity, is essential for CD8 T cell-mediated control of pulmonary Y. pestis infection and we suggest that assays detecting Ag-specific TNFα production in addition to antibody titers may be useful correlates of vaccine efficacy against plague and other acutely lethal septic bacterial pneumonias.
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Affiliation(s)
- Frank M. Szaba
- Trudeau Institute, Saranac Lake, New York, United States of America
| | | | - Debra K. Duso
- Trudeau Institute, Saranac Lake, New York, United States of America
| | | | | | - Andrea M. Cooper
- Trudeau Institute, Saranac Lake, New York, United States of America
| | - James B. Bliska
- Center for Infectious Diseases and Department of Molecular Genetics and Microbiology, Stony Brook University, Stony Brook, New York, United States of America
| | | | - Jr-Shiuan Lin
- Trudeau Institute, Saranac Lake, New York, United States of America
- * E-mail:
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Abstract
Among the 13 TLRs in the vertebrate systems, only TLR4 utilizes both Myeloid differentiation factor 88 (MyD88) and Toll/Interleukin-1 receptor (TIR)-domain-containing adapter interferon-β-inducing Factor (TRIF) adaptors to transduce signals triggering host-protective immune responses. Earlier studies on the pathway combined various experimental data in the form of one comprehensive map of TLR signaling. But in the absence of adequate kinetic parameters quantitative mathematical models that reveal emerging systems level properties and dynamic inter-regulation among the kinases/phosphatases of the TLR4 network are not yet available. So, here we used reaction stoichiometry-based and parameter independent logical modeling formalism to build the TLR4 signaling network model that captured the feedback regulations, interdependencies between signaling kinases and phosphatases and the outcome of simulated infections. The analyses of the TLR4 signaling network revealed 360 feedback loops, 157 negative and 203 positive; of which, 334 loops had the phosphatase PP1 as an essential component. The network elements' interdependency (positive or negative dependencies) in perturbation conditions such as the phosphatase knockout conditions revealed interdependencies between the dual-specific phosphatases MKP-1 and MKP-3 and the kinases in MAPK modules and the role of PP2A in the auto-regulation of Calmodulin kinase-II. Our simulations under the specific kinase or phosphatase gene-deficiency or inhibition conditions corroborated with several previously reported experimental data. The simulations to mimic Yersinia pestis and E. coli infections identified the key perturbation in the network and potential drug targets. Thus, our analyses of TLR4 signaling highlights the role of phosphatases as key regulatory factors in determining the global interdependencies among the network elements; uncovers novel signaling connections; identifies potential drug targets for infections.
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Affiliation(s)
| | - Uddipan Sarma
- Lab-5, National Center for Cell Science, Pune, Maharashtra, India
| | - Bhaskar Saha
- Lab-5, National Center for Cell Science, Pune, Maharashtra, India
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Pradel E, Lemaître N, Merchez M, Ricard I, Reboul A, Dewitte A, Sebbane F. New insights into how Yersinia pestis adapts to its mammalian host during bubonic plague. PLoS Pathog 2014; 10:e1004029. [PMID: 24675805 PMCID: PMC3968184 DOI: 10.1371/journal.ppat.1004029] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 02/11/2014] [Indexed: 12/22/2022] Open
Abstract
Bubonic plague (a fatal, flea-transmitted disease) remains an international public health concern. Although our understanding of the pathogenesis of bubonic plague has improved significantly over the last few decades, researchers have still not been able to define the complete set of Y. pestis genes needed for disease or to characterize the mechanisms that enable infection. Here, we generated a library of Y. pestis mutants, each lacking one or more of the genes previously identified as being up-regulated in vivo. We then screened the library for attenuated virulence in rodent models of bubonic plague. Importantly, we tested mutants both individually and using a novel, “per-pool” screening method that we have developed. Our data showed that in addition to genes involved in physiological adaption and resistance to the stress generated by the host, several previously uncharacterized genes are required for virulence. One of these genes (ympt1.66c, which encodes a putative helicase) has been acquired by horizontal gene transfer. Deletion of ympt1.66c reduced Y. pestis' ability to spread to the lymph nodes draining the dermal inoculation site – probably because loss of this gene decreased the bacteria's ability to survive inside macrophages. Our results suggest that (i) intracellular survival during the early stage of infection is important for plague and (ii) horizontal gene transfer was crucial in the acquisition of this ability. In order to understand and combat infectious diseases, it is essential to characterize the full set of genes required by pathogenic bacteria to overcome the many immunological and physiological challenges encountered during infection. Here, we used a genome-scale approach to identify genes required by the bacterium Yersinia pestis in the production of bubonic plague (a fatal, flea-borne zoonosis). Our results suggest that when colonizing the mammalian host, the bacterium (i) relies on carbohydrates as its carbon source, (ii) shifts to anaerobic respiration or fermentation and (iii) experiences and resists several (but not all) types of stress generated by the host's innate immune system. Strikingly, only a small set of genes (including horizontally acquired and uncharacterized sequences) are required for these infectious processes. Further investigations of the ypmt1,66c gene provided evidence to suggest that accretion of genetic material via horizontal transfer has played a key role in Yersinia pestis' ability to successfully initiate infection after the dermal fleabite. Lastly, we believe that (i) application of our approach to other pathogens and (ii) additional studies of selected Yersinia pestis genes important for plague pathogenesis (some of which are shared with other pathogens) will provide a better understanding of bacterial pathogenesis in general.
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Affiliation(s)
- Elizabeth Pradel
- Equipe Peste et Yersinia pestis; INSERM U1019, Lille, France
- Centre National de la Recherche Scientifique UMR8204, Lille, France
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, Lille, France
- Univ Lille Nord de France, Lille, France
- UDSL, Centre d'Infection et d'Immunité de Lille, Lille, France
| | - Nadine Lemaître
- Equipe Peste et Yersinia pestis; INSERM U1019, Lille, France
- Centre National de la Recherche Scientifique UMR8204, Lille, France
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, Lille, France
- Univ Lille Nord de France, Lille, France
- UDSL, Centre d'Infection et d'Immunité de Lille, Lille, France
- CHU Lille, Lille, France
| | - Maud Merchez
- Equipe Peste et Yersinia pestis; INSERM U1019, Lille, France
- Centre National de la Recherche Scientifique UMR8204, Lille, France
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, Lille, France
- Univ Lille Nord de France, Lille, France
- UDSL, Centre d'Infection et d'Immunité de Lille, Lille, France
| | - Isabelle Ricard
- Equipe Peste et Yersinia pestis; INSERM U1019, Lille, France
- Centre National de la Recherche Scientifique UMR8204, Lille, France
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, Lille, France
- Univ Lille Nord de France, Lille, France
- UDSL, Centre d'Infection et d'Immunité de Lille, Lille, France
| | - Angéline Reboul
- Equipe Peste et Yersinia pestis; INSERM U1019, Lille, France
- Centre National de la Recherche Scientifique UMR8204, Lille, France
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, Lille, France
- Univ Lille Nord de France, Lille, France
- UDSL, Centre d'Infection et d'Immunité de Lille, Lille, France
| | - Amélie Dewitte
- Equipe Peste et Yersinia pestis; INSERM U1019, Lille, France
- Centre National de la Recherche Scientifique UMR8204, Lille, France
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, Lille, France
- Univ Lille Nord de France, Lille, France
- UDSL, Centre d'Infection et d'Immunité de Lille, Lille, France
| | - Florent Sebbane
- Equipe Peste et Yersinia pestis; INSERM U1019, Lille, France
- Centre National de la Recherche Scientifique UMR8204, Lille, France
- Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille, Lille, France
- Univ Lille Nord de France, Lille, France
- UDSL, Centre d'Infection et d'Immunité de Lille, Lille, France
- * E-mail:
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Wolfson W. Memento mori: investigating mummies for ancient diseases. ACTA ACUST UNITED AC 2013; 20:1087-8. [PMID: 24054180 DOI: 10.1016/j.chembiol.2013.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kutyrev VV, Popov NV, Eroshenko GA, Karaeva TB. [Improvement of typification of natural foci of plague based on ecological-genetic analysis of Yersinia pestis]. Zh Mikrobiol Epidemiol Immunobiol 2013:107-111. [PMID: 24605665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Contemporary features of distribution of various subspecies and biovars of plague causative agent by landscape-geographical zones and mountain belts on the territory of Russia and other CIS countries are examined. The most widely spread in plain and mountain natural foci were noted to be Yersinia pestis main subspecies medieval biovar strains. Strains of Y. pestis non-main subspecies are spread in mountain landscapes of Altai, Caucasus, Tian Shan. Change of dominating species of rodents considered as the main carriers of plague was noted not to result in change of genetic and biochemical characteristics of Y. pestis strains. Perspectives of study of "micro-focality" of plague are emphasized for deciphering the mechanism of the enzootic.
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Balakhonov SV, Bel'kova SA, Tokmakova EG, Khvoĭnova IG, Zakhlebnaia OD. [The sensitivity of plague agent from Siberian natural focuses of disease to antibacterial preparations in vitro]. Klin Lab Diagn 2013:36-40. [PMID: 23984554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The comparative analysis was applied concerning antimicrobic action of different groups of antibacterial preparations on the plague agent strains isolated from Siberian natural focuses of disease. The analysis was applied to results obtained using such different methods as disco-diffusive technique, serial dilution and HiCOMB MIC test. It is established that freshly isolated cultures of Yersinia pestis have high sensitivity to antibacterial preparations of different groups. The results obtained using three technical approaches intercorrelate in significant degree. The HiCOMB MIC test was applied for the first time for analysis Y. pestis strains from natural focuses of plague of Siberia.
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Dentovskaia SV, Kopylov PK, Ivanov SA, Ageev SA, Anisimov AP. [A molecular basis of the plague vaccine development]. Mol Gen Mikrobiol Virusol 2013:3-12. [PMID: 24364139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Molecular mechanisms of the Yersinia pestis pathogenicity and peculiarities of maturation of specific immunity to plague are reviewed. The history and modern state of the plague vaccine development are described. Special attention is focused on the prospects in the area of the plague vaccine development. The possible approaches to improvement of vaccine preparations are discussed.
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Fang XY, Zhou DS, Cui YJ, Li YJ, Liu QY, Xu L, Yang RF. [Eco-geographic landscapes of natural plague foci in China III. Biological characteristics of major DFR/MLVA-based genotypes of Yersinia pestis, China]. Zhonghua Liu Xing Bing Xue Za Zhi 2012; 33:536-539. [PMID: 22883187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Affiliation(s)
- Xi-ye Fang
- Institute of Laboratory Animal Sciences of Chinese Academy of Medical Sciences, Compared Medical Research Center of Peking Union Medical College, Beijing 100021, China.
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Odinokov GN, Eroshenko GA, Kukleva LM, Shavina NI, Krasnov IM, Kutyrev VV. [Determination of genetic bases of auxotrophy in Yersinia pestis ssp. caucasica strains]. Genetika 2012; 48:457-464. [PMID: 22730764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Based on the results of computer analysis of nucleotide sequences in strains Yersinia pestis and Y. pseudotuberculosis recorded in the files of NCBI GenBank database, differences between genes argA, aroG, aroF, thiH, and thiG of strain Pestoides F (subspecies caucasica) were found, compared to other strains of plaque agent and pseudotuberculosis microbe. Using PCR with calculated primers and the method of sequence analysis, the structure of variable regions of these genes was studied in 96 natural Y. pestis and Y. pseudotuberculosis strains. It was shown that all examined strains of subspecies caucasica, unlike strains of plague-causing agent of other subspecies and pseudotubercolosis microbe, had identical mutations in genes argA (integration of the insertion sequence IS100), aroG (insertion of ten nucleotides), aroF (inserion of IS100), thiH (insertion of nucleotide T), and thiG (deletion of 13 nucleotides). These mutations are the reason for the absence in strains belonging to this subspecies of the ability to synthesize arginine, phenylalanine, tyrosine, and vitamin B1 (thiamine), and cause their auxotrophy for these growth factors.
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Tollenaere C, Ivanova S, Duplantier JM, Loiseau A, Rahalison L, Rahelinirina S, Brouat C. Contrasted patterns of selection on MHC-linked microsatellites in natural populations of the Malagasy plague reservoir. PLoS One 2012; 7:e32814. [PMID: 22403713 PMCID: PMC3293896 DOI: 10.1371/journal.pone.0032814] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2011] [Accepted: 02/06/2012] [Indexed: 01/14/2023] Open
Abstract
Plague (Yersinia pestis infection) is a highly virulent rodent disease that persists in many natural ecosystems. The black rat (Rattus rattus) is the main host involved in the plague focus of the central highlands of Madagascar. Black rat populations from this area are highly resistant to plague, whereas those from areas in which the disease is absent (low altitude zones of Madagascar) are susceptible. Various lines of evidence suggest a role for the Major Histocompatibility Complex (MHC) in plague resistance. We therefore used the MHC region as a candidate for detecting signatures of plague-mediated selection in Malagasy black rats, by comparing population genetic structures for five MHC-linked microsatellites and neutral markers in two sampling designs. We first compared four pairs of populations, each pair including one population from the plague focus and one from the disease-free zone. Plague-mediated selection was expected to result in greater genetic differentiation between the two zones than expected under neutrality and this was observed for one MHC-class I-linked locus (D20Img2). For this marker as well as for four other MHC-linked loci, a geographic pattern of genetic structure was found at local scale within the plague focus. This pattern would be expected if plague selection pressures were spatially variable. Finally, another MHC-class I-linked locus (D20Rat21) showed evidences of balancing selection, but it seems more likely that this selection would be related to unknown pathogens more widely distributed in Madagascar than plague.
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Affiliation(s)
- Charlotte Tollenaere
- Institut de Recherche pour le Développement, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro), Montferrier sur Lez, France
| | - Svilena Ivanova
- Institut de Recherche pour le Développement, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro), Montferrier sur Lez, France
| | - Jean-Marc Duplantier
- Institut de Recherche pour le Développement, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro), Montferrier sur Lez, France
| | - Anne Loiseau
- Institut National de la Recherche Agronomique, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro), Montferrier sur Lez, France
| | - Lila Rahalison
- Institut Pasteur de Madagascar, Unité Peste, Antananarivo, Madagascar
| | | | - Carine Brouat
- Institut de Recherche pour le Développement, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro), Montferrier sur Lez, France
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Gibbons HS, Krepps MD, Ouellette G, Karavis M, Onischuk L, Leonard P, Broomall S, Sickler T, Betters JL, McGregor P, Donarum G, Liem A, Fochler E, McNew L, Rosenzweig CN, Skowronski E. Comparative genomics of 2009 seasonal plague (Yersinia pestis) in New Mexico. PLoS One 2012; 7:e31604. [PMID: 22359605 PMCID: PMC3281092 DOI: 10.1371/journal.pone.0031604] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Accepted: 01/10/2012] [Indexed: 02/07/2023] Open
Abstract
Plague disease caused by the Gram-negative bacterium Yersinia pestis routinely affects animals and occasionally humans, in the western United States. The strains native to the North American continent are thought to be derived from a single introduction in the late 19th century. The degree to which these isolates have diverged genetically since their introduction is not clear, and new genomic markers to assay the diversity of North American plague are highly desired. To assay genetic diversity of plague isolates within confined geographic areas, draft genome sequences were generated by 454 pyrosequencing from nine environmental and clinical plague isolates. In silico assemblies of Variable Number Tandem Repeat (VNTR) loci were compared to laboratory-generated profiles for seven markers. High-confidence SNPs and small Insertion/Deletions (Indels) were compared to previously sequenced Y. pestis isolates. The resulting panel of mutations allowed clustering of the strains and tracing of the most likely evolutionary trajectory of the plague strains. The sequences also allowed the identification of new putative SNPs that differentiate the 2009 isolates from previously sequenced plague strains and from each other. In addition, new insertion points for the abundant insertion sequences (IS) of Y. pestis are present that allow additional discrimination of strains; several of these new insertions potentially inactivate genes implicated in virulence. These sequences enable whole-genome phylogenetic analysis and allow the unbiased comparison of closely related isolates of a genetically monomorphic pathogen.
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Affiliation(s)
- Henry S Gibbons
- United States Army Edgewood Chemical Biological Center, Aberdeen Proving Ground, Maryland, United States of America.
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Platonov ME, Evseeva VV, Svetoch TE, Efremenko DV, Kuznetsova IV, Dentovskaia SV, Kulichenko AN, Anisimov AP. [The phylogeography of the Yersinia pestis vole strains isolated from the natural foci of caucasian region]. Mol Gen Mikrobiol Virusol 2012:18-21. [PMID: 22984768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
57 Y pestis bv. caucasica strains were assayed using molecular typing. The results of these assays indicated the presence within this biovar of the three separate clonal clusters and necessity of detachment of the Leninakan mountain mesofocus (subfocus) from the structure of Transcaucasian-highland focus into self-supporting one, as well as inclusion of a part of the Pre-Araks low-mountain natural plague focus in the capacity of the subfocus along with Pre-Sevan mountain and Zanzegur-Karabakh mountain subfoci into the structure of Transcaucasian-highland focus. It was shown that the strains circulating in the East-Caucasian highland plague focus were the most ancient branch of bv. caucasica or even of the entire Y pestis phylogenetic tree.
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Eroshenko GA, Odinokov GN, Kukleva LM, Shavina NI, Kutyrev VV. [Structural analysis of genes participating in melibiose fermentation and isocitrate lyase production in Yersinia pestis strains of main and non main subspecies]. Genetika 2011; 47:1328-1334. [PMID: 22232920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Comparative analysis of nucleotide sequences of genes participating in melibiose fermentation and isocitrate lyase production was conducted in 90 natural Yersinia pestis strains of main and non main subspecies. It was ascertained that the lack of the ability to utilize disaccharide melibiose in strains of the main subspecies is caused by integration of the insertion sequence IS285 at 73 bp from the beginning of the structural gene melB that encodes the transport protein galactoside permease. In contrast, strains of non main subspecies (caucasica, altaica, and ulegeica) contain the intact gene melB and are capable of fermenting melibiose. Differences in the manifestation of the other differential trait, production of isocitrate lyase, are connected with the presence of mutation (insertion of two nucleotides +CC) in the regulatory gene iclR encoding repressor protein of the acetate operon, which is the reason for constitutive synthesis of this enzyme. Strains of non main subspecies do not contain mutations in gene iclR, and this correlates in these strains with their capacity for inducible synthesis of isocitrate lyase.
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Nau JY. [Genomic light on the path of plague]. Rev Med Suisse 2010; 6:2210-2211. [PMID: 21155297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Haensch S, Bianucci R, Signoli M, Rajerison M, Schultz M, Kacki S, Vermunt M, Weston DA, Hurst D, Achtman M, Carniel E, Bramanti B. Distinct clones of Yersinia pestis caused the black death. PLoS Pathog 2010; 6:e1001134. [PMID: 20949072 PMCID: PMC2951374 DOI: 10.1371/journal.ppat.1001134] [Citation(s) in RCA: 213] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2010] [Accepted: 09/07/2010] [Indexed: 11/21/2022] Open
Abstract
From AD 1347 to AD 1353, the Black Death killed tens of millions of people in Europe, leaving misery and devastation in its wake, with successive epidemics ravaging the continent until the 18(th) century. The etiology of this disease has remained highly controversial, ranging from claims based on genetics and the historical descriptions of symptoms that it was caused by Yersinia pestis to conclusions that it must have been caused by other pathogens. It has also been disputed whether plague had the same etiology in northern and southern Europe. Here we identified DNA and protein signatures specific for Y. pestis in human skeletons from mass graves in northern, central and southern Europe that were associated archaeologically with the Black Death and subsequent resurgences. We confirm that Y. pestis caused the Black Death and later epidemics on the entire European continent over the course of four centuries. Furthermore, on the basis of 17 single nucleotide polymorphisms plus the absence of a deletion in glpD gene, our aDNA results identified two previously unknown but related clades of Y. pestis associated with distinct medieval mass graves. These findings suggest that plague was imported to Europe on two or more occasions, each following a distinct route. These two clades are ancestral to modern isolates of Y. pestis biovars Orientalis and Medievalis. Our results clarify the etiology of the Black Death and provide a paradigm for a detailed historical reconstruction of the infection routes followed by this disease.
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Affiliation(s)
- Stephanie Haensch
- Institute for Anthropology, Johannes Gutenberg University, Mainz, Germany
| | - Raffaella Bianucci
- Laboratory of Criminalistic Sciences Department of Anatomy, Pharmacology and Legal Medicine, University of Turin, Turin, Italy
- Unité d'Anthropologie Bioculturelle, Faculté de Medecine, University of Mediterranean-CNRS-EFS, Marseille, France
| | - Michel Signoli
- Unité d'Anthropologie Bioculturelle, Faculté de Medecine, University of Mediterranean-CNRS-EFS, Marseille, France
- Centre d'Études Préhistoire, Antiquité, Moyen-âge, UMR 6130 CNRS–250 University of Nice, Valbonne, France
| | - Minoarisoa Rajerison
- Center for Plague, Institute Pasteur de Madagascar, World Health Organization Collaborating, Antananarivo, Madagascar
| | - Michael Schultz
- Department of Anatomy and Embryology Medical Faculty, Georg-August University, Göttingen, Germany
| | - Sacha Kacki
- Inrap, Villeneuve-d'Ascq Archaeological Center, Villeneuve-d'Ascq, France
- Laboratoire d'Anthropologie des Populations du Passé, Université Bordeaux 1, Talence, France
| | - Marco Vermunt
- Department of Monuments and Archaeology, Municipality of Bergen op Zoom, Bergen op Zoom, The Netherlands
| | - Darlene A. Weston
- Barge's Anthropologica, Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, The Netherlands
- Division of Archaeological Sciences, University of Bradford, Bradford, West Yorkshire, United Kingdom
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Derek Hurst
- Worcestershire Historic Environment and Archaeology Service, Worcestershire County Council, Worcester, United Kingdom
| | - Mark Achtman
- Environmental Research Institute, University College Cork, Cork, Ireland
| | | | - Barbara Bramanti
- Institute for Anthropology, Johannes Gutenberg University, Mainz, Germany
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Wozniak TM, Corbett SJ, Gilbert GL. The plague: not just an historical curiosity. N S W Public Health Bull 2010; 21:248. [PMID: 21322306 DOI: 10.1071/nb10034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Affiliation(s)
- Teresa M Wozniak
- NSW Public Health Officer Training Program, NSW Department of Health
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Suntsov VV, Suntsova NI. [Principles of speciation of the plague causative agent Yersinia pestis: gradualism or saltation?]. Izv Akad Nauk Ser Biol 2009:645-653. [PMID: 20146413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The saltation origin of the causative agent of the plague Yersinia pestis from the pseudotuberculosis microbe Y. pseudotuberculosis O:1b has been proclaimed in recent investigations on molecular genetics. The speciation process in this case is proposed to be connected with horizontal inclusion of exogenous genetic structures (such as specific plasmids pFra and pPst) into the genome of the ancestral form. The alternative "Darwinian" model of the gradual origin of the plague agent is proposed based on ecological factors. The comparison of two evolutionary scenarios, saltation and gradual, is performed; the latter seems more likely.
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Tidhar A, Flashner Y, Cohen S, Levi Y, Zauberman A, Gur D, Aftalion M, Elhanany E, Zvi A, Shafferman A, Mamroud E. The NlpD lipoprotein is a novel Yersinia pestis virulence factor essential for the development of plague. PLoS One 2009; 4:e7023. [PMID: 19759820 PMCID: PMC2736372 DOI: 10.1371/journal.pone.0007023] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2009] [Accepted: 08/13/2009] [Indexed: 12/22/2022] Open
Abstract
Yersinia pestis is the causative agent of plague. Previously we have isolated an attenuated Y. pestis transposon insertion mutant in which the pcm gene was disrupted. In the present study, we investigated the expression and the role of pcm locus genes in Y. pestis pathogenesis using a set of isogenic surE, pcm, nlpD and rpoS mutants of the fully virulent Kimberley53 strain. We show that in Y. pestis, nlpD expression is controlled from elements residing within the upstream genes surE and pcm. The NlpD lipoprotein is the only factor encoded from the pcm locus that is essential for Y. pestis virulence. A chromosomal deletion of the nlpD gene sequence resulted in a drastic reduction in virulence to an LD(50) of at least 10(7) cfu for subcutaneous and airway routes of infection. The mutant was unable to colonize mouse organs following infection. The filamented morphology of the nlpD mutant indicates that NlpD is involved in cell separation; however, deletion of nlpD did not affect in vitro growth rate. Trans-complementation experiments with the Y. pestis nlpD gene restored virulence and all other phenotypic defects. Finally, we demonstrated that subcutaneous administration of the nlpD mutant could protect animals against bubonic and primary pneumonic plague. Taken together, these results demonstrate that Y. pestis NlpD is a novel virulence factor essential for the development of bubonic and pneumonic plague. Further, the nlpD mutant is superior to the EV76 prototype live vaccine strain in immunogenicity and in conferring effective protective immunity. Thus it could serve as a basis for a very potent live vaccine against bubonic and pneumonic plague.
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Affiliation(s)
- Avital Tidhar
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Yehuda Flashner
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Sara Cohen
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Yinon Levi
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Ayelet Zauberman
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - David Gur
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Moshe Aftalion
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Eytan Elhanany
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Anat Zvi
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Avigdor Shafferman
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Emanuelle Mamroud
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
- * E-mail:
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Savostina EP, Popov IA, Kashtanova TN, Vinogradova NA, Plotnikov OP, Balakhonov SV. [Genomic polymorphism of the main subspecies of the plague agent strains]. Mol Gen Mikrobiol Virusol 2009:23-27. [PMID: 20050162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Genomic fingerprinting analysis of plague agent strains of the main subspecies isolated in natural foci of various types in the Russian Federation and neighboring countries suggests their genetic polymorphism, while they are similar in phenotypic properties. The strains of the main subspecies, Y. pesis subsp. Pestis, fall into four genetic variants, each of them being associated with specific carrier species. The conserved genomic fingerprinting profile of each genovariant of Y. pesis subsp. Pestis strains ensures the suggested methodic approach to be promising for the intraspecies differentiation of plague agent strains (including atypical strains). Correlation of genovariants with carrier species permits their application for research into enzootic territories, where carrier change-over takes place.
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Ryzhko IV, Tsuraeva RI, Anisimov BI, Trishina AV. [Efficacy of levofloxacin, lomefloxacin and moxifloxacin vs. other fluoroquinolones in experimental plague due to FI+ and FI- strains of Yersinia pestis in Albino mice]. Antibiot Khimioter 2009; 54:37-40. [PMID: 20052916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Activity of levofloxacin, lomefloxacin and moxifloxacin against 20 FI+ and 20 FI- strains of Yersinia pestis was studied. It was shown that the strains were highly susceptible to the fluoroquinolones. In the experiments on mice subcutaneously infected with suspension of strains 231 FI+ and 231 FI- of Y. pestis in a dose of about 1000 LD50 (10(4) microbial cells) the ED50 of levofloxacin and moxifloxacin was 5.5-14.0 mg/kg independent of the infective culture phenotype and that of lomefloxacin was 18.5 mg/kg. Estimation of the impact of the pathogen infective dose value on the results of the experimental plague treatment with the therapeutic dose equivalent to the human one showed high efficacy of the fluoroquinolones (efficacy index of 10(4)). The treatment for 7 days provided 90-100-percent survival of the animals. The prophylactive use of lomefloxacin (in 5 hours - 5 days) was less efficient (70-80% of the survivals) in the animals infected with the antigen-changed (FI-) variant of the pathogen. Levofloxacin and moxifloxacin provided 90-100-percent survival of the animals treated for a course of 5 days independent of the pathogen phenotype. The study demonstrated that the use oflevofloxacin, lomefloxacin and moxifloxacin was prospective for the prophylaxis and therapy of experimental plague.
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Trukhachev AL, Ivanova VS, Arsen'eva TE, Lebedeva SA, Goncharenko EV. [Search for primers on the basis of Yersinia pestis chromosomal DNA for effective PCR identification of typical and atypical plague pathogen strains]. Klin Lab Diagn 2008:49-52. [PMID: 19198278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The authors present the results of a comparative appraisal of a set of species-specific primers in the polymerase chain reaction (PCR) identification of typical and atypical plague pathogen strains. A hundred and seventy-three strains with a species specificity of Y. pestis and 67 heterologous strains were used to appraise the well-known Y. pestis chromosomal DNA-based primers: "3a", "yp2769ms06", "vlml2for/ISrev216", "vlm33/ISfor1754", as well as "JS" specific to Y. pseudotuberculosis". In some plague bacterial strains, the DNA sequences complementary to the primers "3a" and "yp2769ms06" were not found. All conceivable plague pathogen strains were detectable only with the primers "vlml2for/ISrev216" and "vlm33/ISfor1754". The primers "JS" recognized only the strains of pseudotuberculosis causative agent. The DNA of other microorganisms failed to react with none species of primers. For the effective detection and differentiation of typical and atypical Y. pestis strains, the authors propose PCR using a few pairs of primers with the merits of the primers of the group "vlm" and 'JS".
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Auerbach RK, Tuanyok A, Probert WS, Kenefic L, Vogler AJ, Bruce DC, Munk C, Brettin TS, Eppinger M, Ravel J, Wagner DM, Keim P. Yersinia pestis evolution on a small timescale: comparison of whole genome sequences from North America. PLoS One 2007; 2:e770. [PMID: 17712418 PMCID: PMC1940323 DOI: 10.1371/journal.pone.0000770] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2007] [Accepted: 07/25/2007] [Indexed: 11/29/2022] Open
Abstract
Background Yersinia pestis, the etiologic agent of plague, was responsible for several devastating epidemics throughout history and is currently of global importance to current public heath and biodefense efforts. Y. pestis is widespread in the Western United States. Because Y. pestis was first introduced to this region just over 100 years ago, there has been little time for genetic diversity to accumulate. Recent studies based upon single nucleotide polymorphisms have begun to quantify the genetic diversity of Y. pestis in North America. Methodology/Principal Findings To examine the evolution of Y. pestis in North America, a gapped genome sequence of CA88-4125 was generated. Sequence comparison with another North American Y. pestis strain, CO92, identified seven regions of difference (six inversions, one rearrangement), differing IS element copy numbers, and several SNPs. Conclusions/Significance The relatively large number of inverted/rearranged segments suggests that North American Y. pestis strains may be undergoing inversion fixation at high rates over a short time span, contributing to higher-than-expected diversity in this region. These findings will hopefully encourage the scientific community to sequence additional Y. pestis strains from North America and abroad, leading to a greater understanding of the evolutionary history of this pathogen.
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Affiliation(s)
- Raymond K. Auerbach
- Department of Biological Sciences, Northern Arizona University, Flagstaff, Arizona, United States of America
| | - Apichai Tuanyok
- Department of Biological Sciences, Northern Arizona University, Flagstaff, Arizona, United States of America
| | - William S. Probert
- Microbial Diseases Laboratory, California Department of Public Health, Richmond, California, United States of America
| | - Leo Kenefic
- Department of Biological Sciences, Northern Arizona University, Flagstaff, Arizona, United States of America
| | - Amy J. Vogler
- Department of Biological Sciences, Northern Arizona University, Flagstaff, Arizona, United States of America
| | - David C. Bruce
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Christine Munk
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Thomas S. Brettin
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Mark Eppinger
- J. Craig Venter Institute, The Institute for Genomic Research, Rockville, Maryland, United States of America
| | - Jacques Ravel
- J. Craig Venter Institute, The Institute for Genomic Research, Rockville, Maryland, United States of America
| | - David M. Wagner
- Department of Biological Sciences, Northern Arizona University, Flagstaff, Arizona, United States of America
| | - Paul Keim
- Department of Biological Sciences, Northern Arizona University, Flagstaff, Arizona, United States of America
- Pathogen Genomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States of America
- * To whom correspondence should be addressed. E-mail:
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Das R, Dhokalia A, Huang XZ, Hammamieh R, Chakraborty N, Lindler LE, Jett M. Study of proinflammatory responses induced by Yersinia pestis in human monocytes using cDNA arrays. Genes Immun 2007; 8:308-19. [PMID: 17429414 DOI: 10.1038/sj.gene.6364389] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Yersinia pestis, the causative agent of plague, is known to develop strategies to overcome the host immune mechanisms and survive in the host. The molecular changes induced by Y. pestis in the host are not well delineated. Here, we examined the early events triggered after the intracellular infection of Y. pestis in human monocytes and lymphocytes by analyzing the host transcriptional profiles using cDNA arrays. We found that sets of genes that, especially at early time periods, were highly upregulated in monocytes alone when compared with a mixed culture of lymphocytes and monocytes. Gene expression responses revealed genes coding for cytokines, chemokines, transcription factors, inflammatory and apoptosis-related genes. Protein levels were measured, and real-time polymerase chain reaction was used to validate the microarray results. Our data suggest that intracellular infection of human monocytes with Y. pestis results in a strong inflammatory response at early time periods and a downregulation of genes such as thromobomodulin, which may play a role in coagulation, resulting in disseminated intravascular coagulation, a primary cause of death in plague infected hosts. We provide evidence that genomic analysis can provide a solid foundation to mechanistic insights to explain some of the symptoms induced by Y. pestis.
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Affiliation(s)
- R Das
- Department of Molecular Pathology, Walter Reed Army Institute of Research, 503 Robert Grant Avenue, Silver Spring, MD 20910, USA
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Abstract
Yersinia pestis, the causative agent of plague, can be transmitted by infected flea bite or inhaled aerosol. Both routes of infection have a high mortality rate, and pneumonic infections of Y. pestis represent a significant concern as a tool of bioterrorism. Understanding the transcriptional program of this pathogen during pulmonary infection should be valuable in understanding plague pathogenesis, as well as potentially offering insights into new vaccines and therapeutics. Toward this goal we developed a long oligonucleotide microarray to the plague bacillus and evaluated the expression profiles of Y. pestis in vitro and in the mouse pulmonary infection model in vivo. The in vitro analysis compared expression patterns at 27 versus 37 degrees C, as a surrogate of the transition from the flea to the mammalian host. The in vivo analysis used intranasal challenge to the mouse lung. By amplifying the Y. pestis RNA from individual mouse lungs we were able to map the transcriptional profile of plague at postinfection days 1 to 3. Our data present a very different transcriptional profile between in vivo and in vitro expression, suggesting Y. pestis responds to a variety of host signals during infection. Of note was the number of genes found in genomic regions with altered %GC content that are upregulated within the mouse lung environment. These data suggest these regions may provide particularly promising targets for both vaccines and therapeutics.
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Affiliation(s)
- Jonathan N Lawson
- Center for Biomedical Inventions, The University of Texas-Southwestern Medical School, Dallas, Texas, USA
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Congleton YHK, Wulff CR, Kerschen EJ, Straley SC. Mice naturally resistant to Yersinia pestis Delta pgm strains commonly used in pathogenicity studies. Infect Immun 2006; 74:6501-4. [PMID: 16954401 PMCID: PMC1695521 DOI: 10.1128/iai.00597-06] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We report that females of some substrains of inbred mouse strain 129 are resistant to systemic plague due to conditionally virulent Deltapgm strains of Yersinia pestis; however, fully virulent Y. pestis is not attenuated in these mice. Therefore, these mice offer a powerful system in which to map in parallel host resistance traits and opposing bacterial virulence properties for plague.
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Affiliation(s)
- Yasemin H K Congleton
- Department of Microbiology, Immunology, and Molecular Genetics, University of Kentucky, Lexington, KY 40536-0298, USA
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Abstract
Black Death and AIDS are global pandemics that have captured the popular imagination, both attracting extravagant hypotheses to account for their origins and geographical distributions. Medical scientists have recently attempted to connect these two great pandemics. Some argue that the Black Death of 1346-52 was responsible for a genetic shift that conferred a degree of resistance to HIV 1 infection, that this shift was almost unique to European descendents, and that it mirrors the intensity of Black Death mortality within Europe. Such a hypothesis is not supported by the historical evidence: the Black Death did not strike Europe alone but spread from the east, devastating regions such as China, North Africa, and the Middle East as much or even more than Europe. Further, in Europe its levels of mortality do not correspond with the geographic distribution of the proportion of descendents with this CCR5 gene. If anything, the gradient of Black Death mortality sloped in the opposite direction from that of present-day genotypes: the heaviest casualties were in the Mediterranean, the very regions whose descendents account for the lowest incidences of the HIV-1 resistant allele. We argue that closer collaboration between historians and scientists is needed to understand the selective pressures on genetic mutation, and the possible triggers for changes in genetic spatial frequencies over the past millennia. This requires care and respect for each other's methods of evaluating data.
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Affiliation(s)
- S K Cohn
- Department of History (Medieval), 10 University Gardens, Glasgow G12 8QQ.
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