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Hurtado R, Maturrano L, Azevedo V, Aburjaile F. Pathogenomics insights for understanding Pasteurella multocida adaptation. Int J Med Microbiol 2020; 310:151417. [PMID: 32276876 DOI: 10.1016/j.ijmm.2020.151417] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/01/2020] [Accepted: 03/19/2020] [Indexed: 12/16/2022] Open
Abstract
Pasteurella multocida is an important veterinary pathogen able to infect a wide range of animals in a broad spectrum of diseases. P. multocida is a complex microorganism in relation to its genomic flexibility, host adaptation and pathogenesis. Epidemiological analysis based on multilocus sequence typing, serotyping, genotyping, association with virulence genes and single nucleotide polymorphisms (SNPs), enables assessment of intraspecies diversity, phylogenetic and strain-specific relationships associated with host predilection or disease. A high number of sequenced genomes provides us a more accurate genomic and epidemiological interpretation to determine whether certain lineages can infect a host or produce disease. Comparative genomic analysis and pan-genomic approaches have revealed a flexible genome for hosting mobile genetic elements (MGEs) and therefore significant variation in gene content. Moreover, it was possible to find lineage-specific MGEs from the same niche, showing acquisition probably due to an evolutionary convergence event or to a genetic group with infective capacity. Furthermore, diversification selection analysis exhibits proteins exposed on the surface subject to selection pressures with an interstrain heterogeneity related to their ability to adapt. This article is the first review describing the genomic relationship to elucidate the diversity and evolution of P. multocida.
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Affiliation(s)
- Raquel Hurtado
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, 31270-901, Minas Gerais, Brazil; Laboratory of Molecular Biology and Genetics, Veterinary Medicine Faculty, San Marcos University, Lima, Peru
| | - Lenin Maturrano
- Laboratory of Molecular Biology and Genetics, Veterinary Medicine Faculty, San Marcos University, Lima, Peru
| | - Vasco Azevedo
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, 31270-901, Minas Gerais, Brazil
| | - Flávia Aburjaile
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, 31270-901, Minas Gerais, Brazil; Laboratory of Plant Genetics and Biotechnology, Federal University of Pernambuco, Recife, 50670-901, Pernambuco, Brazil.
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Chitarra CS, Oliveira Filho JXD, Morés N, Silva MIVD, Cândido SL, Cezarino PG, Nakazato L, Dutra V. Identification of Pasteurella multocida transcribed genes in porcine lungs through RNAseq. Microb Pathog 2018; 122:180-183. [PMID: 29890333 DOI: 10.1016/j.micpath.2018.06.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 05/11/2018] [Accepted: 06/08/2018] [Indexed: 11/16/2022]
Abstract
Pasteurella multocida is one of the most important pathogen that causes pneumonia in swine. Although several virulence factors are known, the pathogenesis of this bacterium is not well-studied. Therefore, to study the pathogenesis of P. multocida infection in porcine lung, next-generation RNA sequencing was used to compare the transcriptomes of P. multocida grown in vivo and in vitro, respectively. After P. multocida infection a total of 704 genes were expressed in vitro, 1422 genes were expressed in vivo, and 237 genes were differentially expressed based on statistical analyses, padj of ≤0.1. Genes encoding ribosomal proteins or other products that function in the regulation of transcription and translation were downregulated, whereas genes whose products affected cellular processes (protein transport and RNA degradation) and metabolic pathways, such as those of amino acid metabolism and nucleotide metabolism, were upregulated in vitro compared with in vivo. This study shows that differentially expressed genes in P. multocida regulate pathways that operate during stress, iron capture, heat shock, and nitrogen regulation. However, extensive investigation of the pathogenic mechanism of P. multocida is still required.
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Affiliation(s)
- Cristiane Silva Chitarra
- Avenida Fernando Corrêa da Costa, nº 2367 - Bairro Boa Esperança, Cuiabá, Mato Grosso, CEP: 78060-900, Brazil.
| | | | - Nelson Morés
- Rodovia BR-153, Km 110, Distrito de Tamanduá Caixa Postal: 321, Concórdia, Santa Catarina, CEP: 89715-899, Brazil
| | | | - Stefhano Luis Cândido
- Avenida Fernando Corrêa da Costa, nº 2367 - Bairro Boa Esperança, Cuiabá, Mato Grosso, CEP: 78060-900, Brazil
| | - Paula Gabriela Cezarino
- Avenida Fernando Corrêa da Costa, nº 2367 - Bairro Boa Esperança, Cuiabá, Mato Grosso, CEP: 78060-900, Brazil
| | - Luciano Nakazato
- Avenida Fernando Corrêa da Costa, nº 2367 - Bairro Boa Esperança, Cuiabá, Mato Grosso, CEP: 78060-900, Brazil
| | - Valéria Dutra
- Avenida Fernando Corrêa da Costa, nº 2367 - Bairro Boa Esperança, Cuiabá, Mato Grosso, CEP: 78060-900, Brazil
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Cao P, Guo D, Liu J, Jiang Q, Xu Z, Qu L. Genome-Wide Analyses Reveal Genes Subject to Positive Selection in Pasteurella multocida. Front Microbiol 2017; 8:961. [PMID: 28611758 PMCID: PMC5447721 DOI: 10.3389/fmicb.2017.00961] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 05/15/2017] [Indexed: 01/02/2023] Open
Abstract
Pasteurella multocida, a Gram-negative opportunistic pathogen, has led to a broad range of diseases in mammals and birds, including fowl cholera in poultry, pneumonia and atrophic rhinitis in swine and rabbit, hemorrhagic septicemia in cattle, and bite infections in humans. In order to better interpret the genetic diversity and adaptation evolution of this pathogen, seven genomes of P. multocida strains isolated from fowls, rabbit and pigs were determined by using high-throughput sequencing approach. Together with publicly available P. multocida genomes, evolutionary features were systematically analyzed in this study. Clustering of 70,565 protein-coding genes showed that the pangenome of 33 P. multocida strains was composed of 1,602 core genes, 1,364 dispensable genes, and 1,070 strain-specific genes. Of these, we identified a full spectrum of genes related to virulence factors and revealed genetic diversity of these potential virulence markers across P. multocida strains, e.g., bcbAB, fcbC, lipA, bexDCA, ctrCD, lgtA, lgtC, lic2A involved in biogenesis of surface polysaccharides, hsf encoding autotransporter adhesin, and fhaB encoding filamentous haemagglutinin. Furthermore, based on genome-wide positive selection scanning, a total of 35 genes were subject to strong selection pressure. Extensive analyses of protein subcellular location indicated that membrane-associated genes were highly abundant among all positively selected genes. The detected amino acid sites undergoing adaptive selection were preferably located in extracellular space, perhaps associated with bacterial evasion of host immune responses. Our findings shed more light on conservation and distribution of virulence-associated genes across P. multocida strains. Meanwhile, this study provides a genetic context for future researches on the mechanism of adaptive evolution in P. multocida.
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Affiliation(s)
- Peili Cao
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural SciencesHarbin, China
| | - Dongchun Guo
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural SciencesHarbin, China
| | - Jiasen Liu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural SciencesHarbin, China
| | - Qian Jiang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural SciencesHarbin, China
| | - Zhuofei Xu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural UniversityWuhan, China
| | - Liandong Qu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural SciencesHarbin, China
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Insights into Campylobacter jejuni colonization and enteritis using a novel infant rabbit model. Sci Rep 2016; 6:28737. [PMID: 27357336 PMCID: PMC4928045 DOI: 10.1038/srep28737] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 06/07/2016] [Indexed: 01/26/2023] Open
Abstract
A lack of relevant disease models for Campylobacter jejuni has long been an obstacle to research into this common enteric pathogen. Here we used an infant rabbit to study C. jejuni infection, which enables us to define several previously unknown but key features of the organism. C. jejuni is capable of systemic invasion in the rabbit, and developed a diarrhea symptom that mimicked that observed in many human campylobacteriosis. The large intestine was the most consistently colonized site and produced intestinal inflammation, where specific cytokines were induced. Genes preferentially expressed during C. jejuni infection were screened, and acs, cj1385, cj0259 seem to be responsible for C. jejuni invasion. Our results demonstrates that the infant rabbit can be used as an alternative experimental model for the study of diarrheagenic Campylobacter species and will be useful in exploring the pathogenesis of other related pathogens.
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Okay S, Kurt Kızıldoğan A. Comparative genome analysis of five Pasteurella multocida strains to decipher the diversification in pathogenicity and host specialization. Gene 2015; 567:58-72. [DOI: 10.1016/j.gene.2015.04.063] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 04/08/2015] [Accepted: 04/23/2015] [Indexed: 01/15/2023]
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Nowland MH, Brammer DW, Garcia A, Rush HG. Biology and Diseases of Rabbits. LABORATORY ANIMAL MEDICINE 2015. [PMCID: PMC7150064 DOI: 10.1016/b978-0-12-409527-4.00010-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Beginning in 1931, an inbred rabbit colony was developed at the Phipps Institute for the Study, Treatment and Prevention of Tuberculosis at the University of Pennsylvania. This colony was used to study natural resistance to infection with tuberculosis (Robertson et al., 1966). Other inbred colonies or well-defined breeding colonies were also developed at the University of Illinois College of Medicine Center for Genetics, the Laboratories of the International Health Division of The Rockefeller Foundation, the University of Utrecht in the Netherlands, and Jackson Laboratories. These colonies were moved or closed in the years to follow. Since 1973, the U.S. Department of Agriculture has reported the total number of certain species of animals used by registered research facilities (1997). In 1973, 447,570 rabbits were used in research. There has been an overall decrease in numbers of rabbits used. This decreasing trend started in the mid-1990s. In 2010, 210,172 rabbits were used in research. Despite the overall drop in the number used in research, the rabbit is still a valuable model and tool for many disciplines.
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Wang Y, Yi L, Wang S, Lu C, Ding C. Selective capture of transcribed sequences in the functional gene analysis of microbial pathogens. Appl Microbiol Biotechnol 2014; 98:9983-92. [PMID: 25381492 DOI: 10.1007/s00253-014-6190-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 10/23/2014] [Accepted: 10/25/2014] [Indexed: 01/26/2023]
Abstract
Selective capture of transcribed sequences (SCOTS) is an effective method to identify bacterial genes differentially expressed during different biological processes, including pathogenic interactions with a host species. The method can be used to elucidate molecular mechanisms driving and maintaining such interactions. The method is a powerful genetic tool that overcomes limitations found in other methods, by working with small amounts of mRNA and allowing for the separation of bacterial cDNA from host cDNA. It has been increasingly used in the discovery of genes involved in the bacterium-host interaction. In this review, we briefly introduce the SCOTS method, outline the technical advances offered in the method, and focus on the method's applications in several microbial pathogens.
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Affiliation(s)
- Yang Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China,
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Guo CM, Chen RR, Kalhoro DH, Wang ZF, Liu GJ, Lu CP, Liu YJ. Identification of genes preferentially expressed by highly virulent piscine Streptococcus agalactiae upon interaction with macrophages. PLoS One 2014; 9:e87980. [PMID: 24498419 PMCID: PMC3912197 DOI: 10.1371/journal.pone.0087980] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 12/31/2013] [Indexed: 11/19/2022] Open
Abstract
Streptococcus agalactiae, long recognized as a mammalian pathogen, is an emerging concern with regard to fish. In this study, we used a mouse model and in vitro cell infection to evaluate the pathogenetic characteristics of S. agalactiae GD201008-001, isolated from tilapia in China. This bacterium was found to be highly virulent and capable of inducing brain damage by migrating into the brain by crossing the blood–brain barrier (BBB). The phagocytosis assays indicated that this bacterium could be internalized by murine macrophages and survive intracellularly for more than 24 h, inducing injury to macrophages. Further, selective capture of transcribed sequences (SCOTS) was used to investigate microbial gene expression associated with intracellular survival. This positive cDNA selection technique identified 60 distinct genes that could be characterized into 6 functional categories. More than 50% of the differentially expressed genes were involved in metabolic adaptation. Some genes have previously been described as associated with virulence in other bacteria, and four showed no significant similarities to any other previously described genes. This study constitutes the first step in further gene expression analyses that will lead to a better understanding of the molecular mechanisms used by S. agalactiae to survive in macrophages and to cross the BBB.
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Affiliation(s)
- Chang-Ming Guo
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Rong-Rong Chen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | | | - Zhao-Fei Wang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Guang-Jin Liu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Cheng-Ping Lu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yong-Jie Liu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- * E-mail:
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Abstract
In a world where most emerging and reemerging infectious diseases are zoonotic in nature and our contacts with both domestic and wild animals abound, there is growing awareness of the potential for human acquisition of animal diseases. Like other Pasteurellaceae, Pasteurella species are highly prevalent among animal populations, where they are often found as part of the normal microbiota of the oral, nasopharyngeal, and upper respiratory tracts. Many Pasteurella species are opportunistic pathogens that can cause endemic disease and are associated increasingly with epizootic outbreaks. Zoonotic transmission to humans usually occurs through animal bites or contact with nasal secretions, with P. multocida being the most prevalent isolate observed in human infections. Here we review recent comparative genomics and molecular pathogenesis studies that have advanced our understanding of the multiple virulence mechanisms employed by Pasteurella species to establish acute and chronic infections. We also summarize efforts being explored to enhance our ability to rapidly and accurately identify and distinguish among clinical isolates and to control pasteurellosis by improved development of new vaccines and treatment regimens.
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Affiliation(s)
- Brenda A Wilson
- Department of Microbiology and Host-Microbe Systems Theme of the Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.
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Identification of genes transcribed by Streptococcus equi ssp. zooepidemicus in infected porcine lung. Microb Pathog 2013; 59-60:7-12. [DOI: 10.1016/j.micpath.2013.02.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 01/31/2013] [Accepted: 02/04/2013] [Indexed: 01/03/2023]
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