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Cowick CA, Russ BP, Bales AR, Nanduri B, Meyer F. Mannheimia haemolytica Negatively Affects Bovine Herpesvirus Type 1.1 Replication Capacity In Vitro. Microorganisms 2022; 10:microorganisms10112158. [PMID: 36363750 PMCID: PMC9697469 DOI: 10.3390/microorganisms10112158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 10/28/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
Bovine Respiratory Disease (BRD) is a multifactorial condition affecting cattle worldwide resulting in high rates of morbidity and mortality. The disease can be triggered by Bovine Herpesvirus-1 (BoHV-1) infection, stress, and the subsequent proliferation and lung colonization by commensal bacteria such as Mannheimia haemolytica, ultimately inducing severe pneumonic inflammation. Due to its polymicrobial nature, the study of BRD microbes requires co-infection models. While several past studies have mostly focused on the effects of co-infection on host gene expression, we focused on the relationship between BRD pathogens during co-infection, specifically on M. haemolytica’s effect on BoHV-1 replication. This study shows that M. haemolytica negatively impacts BoHV-1 replication in a dose-dependent manner in different in vitro models. The negative effect was observed at very low bacterial doses while increasing the viral dose counteracted this effect. Viral suppression was also dependent on the time at which each microbe was introduced to the cell culture. While acidification of the culture medium did not grossly affect cell viability, it significantly inhibited viral replication. We conclude that M. haemolytica and BoHV-1 interaction is dose and time-sensitive, wherein M. haemolytica proliferation induces significant viral suppression when the viral replication program is not fully established.
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Affiliation(s)
- Caitlyn A. Cowick
- Department of Biochemistry & Molecular Biology, Entomology & Plant Pathology, Mississippi State University, 408 Dorman Hall, 32 Creelman St., Box 9655, Starkville, MS 39762, USA
| | - Brynnan P. Russ
- Department of Biochemistry & Molecular Biology, Entomology & Plant Pathology, Mississippi State University, 408 Dorman Hall, 32 Creelman St., Box 9655, Starkville, MS 39762, USA
| | - Anna R. Bales
- Department of Biochemistry & Molecular Biology, Entomology & Plant Pathology, Mississippi State University, 408 Dorman Hall, 32 Creelman St., Box 9655, Starkville, MS 39762, USA
| | - Bindu Nanduri
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS 39762, USA
| | - Florencia Meyer
- Department of Biochemistry & Molecular Biology, Entomology & Plant Pathology, Mississippi State University, 408 Dorman Hall, 32 Creelman St., Box 9655, Starkville, MS 39762, USA
- Correspondence: ; Tel.: +1-(662)-325-2640; Fax: +1-(662)-325-8955
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Mannheimia haemolytica in bovine respiratory disease: immunogens, potential immunogens, and vaccines. Anim Health Res Rev 2019; 19:79-99. [PMID: 30683173 DOI: 10.1017/s1466252318000142] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Mannheimia haemolytica is the major cause of severe pneumonia in bovine respiratory disease (BRD). Early M. haemolytica bacterins were either ineffective or even enhanced disease in vaccinated cattle, which led to studies of the bacterium's virulence factors and potential immunogens to determine ways to improve vaccines. Studies have focused on the capsule, lipopolysaccharide, various adhesins, extracellular enzymes, outer membrane proteins, and leukotoxin (LKT) resulting in a strong database for understanding immune responses to the bacterium and production of more efficacious vaccines. The importance of immunity to LKT and to surface antigens in stimulating immunity led to studies of individual native or recombinant antigens, bacterial extracts, live-attenuated or mutant organisms, culture supernatants, combined bacterin-toxoids, outer membrane vesicles, and bacterial ghosts. Efficacy of several of these potential vaccines can be shown following experimental M. haemolytica challenge; however, efficacy in field trials is harder to determine due to the complexity of factors and etiologic agents involved in naturally occurring BRD. Studies of potential vaccines have led current commercial vaccines, which are composed primarily of culture supernatant, bacterin-toxoid, or live mutant bacteria. Several of those can be augmented experimentally by addition of recombinant LKT or outer membrane proteins.
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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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Klima CL, Zaheer R, Cook SR, Rasmussen J, Alexander TW, Potter A, Hendrick S, McAllister TA. In silico identification and high throughput screening of antigenic proteins as candidates for a Mannheimia haemolytica vaccine. Vet Immunol Immunopathol 2017; 195:19-24. [PMID: 29249313 DOI: 10.1016/j.vetimm.2017.11.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 11/05/2017] [Accepted: 11/06/2017] [Indexed: 01/06/2023]
Abstract
This study examined the use of comparative genomic analysis for vaccine design against Mannheimia haemolytica, a respiratory pathogen of ruminants. A total of 2,341genes were identified in at least half of the 23 genomes. Of these, a total of 240 were identified to code for N-terminal signal peptides with diverse sub-cellular localizations (78 periplasmic, 52 outer membrane, 15 extracellular, 13 cytoplasmic membrane and 82 unknown) and were examined in an ELISA assay using a coupled-cell free transcription/translation system for protein expressionwith antisera from cattle challenged with serovars 1, 2 or 6 of M. haemolytica. In total, 186 proteins were immunoreactive to at least one sera type and of these, 105 were immunoreactive to all sera screened. The top ten antigens based on immunoreactivity were serine protease Ssa-1 (AC570_10970), an ABC dipeptid transporter substrate-binding protein (AC570_04010), a ribonucleotide reductase (AC570_10780), competence protein ComE (AC570_11510), a filamentous hemagglutinin (AC570_01600), a molybdenum ABC transporter solute-binding protein (AC570_10275), a conserved hypothetical protein (AC570_07570), a porin protein (AC569_05045), an outer membrane assembly protein YeaT (AC570_03060), and an ABC transporter maltose binding protein MalE (AC570_00140). The framework generated from this research can be further applied towards rapid vaccine design against other pathogens involved in complex respiratory infections in cattle.
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Affiliation(s)
- Cassidy L Klima
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB, T1J 4B1, Canada
| | - Rahat Zaheer
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB, T1J 4B1, Canada
| | - Shaun R Cook
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB, T1J 4B1, Canada
| | - Jay Rasmussen
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB, T1J 4B1, Canada
| | - Trevor W Alexander
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB, T1J 4B1, Canada
| | - Andrew Potter
- Vaccine and Infectious Disease Organization, Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, SK, S7N 5E3, Canada
| | - Steve Hendrick
- Department of Large Animal Clinical Science, Western College of Veterinary Medicine, University of Saskatoon, Saskatoon, SK, S7N 5B4, Canada
| | - Tim A McAllister
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB, T1J 4B1, Canada.
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Klima CL, Cook SR, Zaheer R, Laing C, Gannon VP, Xu Y, Rasmussen J, Potter A, Hendrick S, Alexander TW, McAllister TA. Comparative Genomic Analysis of Mannheimia haemolytica from Bovine Sources. PLoS One 2016; 11:e0149520. [PMID: 26926339 PMCID: PMC4771134 DOI: 10.1371/journal.pone.0149520] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 02/02/2016] [Indexed: 11/18/2022] Open
Abstract
Bovine respiratory disease is a common health problem in beef production. The primary bacterial agent involved, Mannheimia haemolytica, is a target for antimicrobial therapy and at risk for associated antimicrobial resistance development. The role of M. haemolytica in pathogenesis is linked to serotype with serotypes 1 (S1) and 6 (S6) isolated from pneumonic lesions and serotype 2 (S2) found in the upper respiratory tract of healthy animals. Here, we sequenced the genomes of 11 strains of M. haemolytica, representing all three serotypes and performed comparative genomics analysis to identify genetic features that may contribute to pathogenesis. Possible virulence associated genes were identified within 14 distinct prophage, including a periplasmic chaperone, a lipoprotein, peptidoglycan glycosyltransferase and a stress response protein. Prophage content ranged from 2–8 per genome, but was higher in S1 and S6 strains. A type I-C CRISPR-Cas system was identified in each strain with spacer diversity and organization conserved among serotypes. The majority of spacers occur in S1 and S6 strains and originate from phage suggesting that serotypes 1 and 6 may be more resistant to phage predation. However, two spacers complementary to the host chromosome targeting a UDP-N-acetylglucosamine 2-epimerase and a glycosyl transferases group 1 gene are present in S1 and S6 strains only indicating these serotypes may employ CRISPR-Cas to regulate gene expression to avoid host immune responses or enhance adhesion during infection. Integrative conjugative elements are present in nine of the eleven genomes. Three of these harbor extensive multi-drug resistance cassettes encoding resistance against the majority of drugs used to combat infection in beef cattle, including macrolides and tetracyclines used in human medicine. The findings here identify key features that are likely contributing to serotype related pathogenesis and specific targets for vaccine design intended to reduce the dependency on antibiotics to treat respiratory infection in cattle.
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Affiliation(s)
- Cassidy L. Klima
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB T1J 4B1, Canada
- Department of Large Animal Clinial Science, Western Colledge of Verterinary Medicine, University of Saskatoon, Saskatoon, Canada
| | - Shaun R. Cook
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB T1J 4B1, Canada
| | - Rahat Zaheer
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB T1J 4B1, Canada
| | - Chad Laing
- Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Lethbridge, Alberta, Canada
| | - Vick P. Gannon
- Laboratory for Foodborne Zoonoses, Public Health Agency of Canada, Lethbridge, Alberta, Canada
| | - Yong Xu
- Department of Biological Sciences, University of Lethbridge, Lethbridge, Alberta, Canada
| | - Jay Rasmussen
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB T1J 4B1, Canada
| | - Andrew Potter
- Vaccine and Infectious Disease Organization, Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Steve Hendrick
- Department of Large Animal Clinial Science, Western Colledge of Verterinary Medicine, University of Saskatoon, Saskatoon, Canada
| | - Trevor W. Alexander
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB T1J 4B1, Canada
- * E-mail: (TAM); (TWA)
| | - Tim A. McAllister
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB T1J 4B1, Canada
- * E-mail: (TAM); (TWA)
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Balachandran Y, Knaus S, Caldwell S, Singh B. Toll-like receptor 10 expression in chicken, cattle, pig, dog, and rat lungs. Vet Immunol Immunopathol 2015; 168:184-92. [DOI: 10.1016/j.vetimm.2015.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 08/12/2015] [Accepted: 09/12/2015] [Indexed: 10/23/2022]
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Rai AN, Epperson WB, Nanduri B. Application of Functional Genomics for Bovine Respiratory Disease Diagnostics. Bioinform Biol Insights 2015; 9:13-23. [PMID: 26526746 PMCID: PMC4620937 DOI: 10.4137/bbi.s30525] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 08/24/2015] [Accepted: 08/26/2015] [Indexed: 12/27/2022] Open
Abstract
Bovine respiratory disease (BRD) is the most common economically important disease affecting cattle. For developing accurate diagnostics that can predict disease susceptibility/resistance and stratification, it is necessary to identify the molecular mechanisms that underlie BRD. To study the complex interactions among the bovine host and the multitude of viral and bacterial pathogens, as well as the environmental factors associated with BRD etiology, genome-scale high-throughput functional genomics methods such as microarrays, RNA-seq, and proteomics are helpful. In this review, we summarize the progress made in our understanding of BRD using functional genomics approaches. We also discuss some of the available bioinformatics resources for analyzing high-throughput data, in the context of biological pathways and molecular interactions. Although resources for studying host response to infection are avail-able, the corresponding information is lacking for majority of BRD pathogens, impeding progress in identifying diagnostic signatures for BRD using functional genomics approaches.
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Affiliation(s)
- Aswathy N Rai
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, MS, USA
| | - William B Epperson
- Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, MS, USA
| | - Bindu Nanduri
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, MS, USA. ; Institute for Genomics, Biocomputing, and Biotechnology, Mississippi State University, MS, USA
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Bello-Ortí B, Howell KJ, Tucker AW, Maskell DJ, Aragon V. Metatranscriptomics reveals metabolic adaptation and induction of virulence factors by Haemophilus parasuis during lung infection. Vet Res 2015; 46:102. [PMID: 26395877 PMCID: PMC4580352 DOI: 10.1186/s13567-015-0225-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 07/21/2015] [Indexed: 01/08/2023] Open
Abstract
Haemophilus parasuis is a common inhabitant of the upper respiratory tract of pigs, and the causative agent of Glässer’s disease. This disease is characterized by polyserositis and arthritis, produced by the severe inflammation caused by the systemic spread of the bacterium. After an initial colonization of the upper respiratory tract, H. parasuis enters the lung during the early stages of pig infection. In order to study gene expression at this location, we sequenced the ex vivo and in vivo H. parasuis Nagasaki transcriptome in the lung using a metatranscriptomic approach. Comparison of gene expression under these conditions with that found in conventional plate culture showed generally reduced expression of genes associated with anabolic and catabolic pathways, coupled with up-regulation of membrane-related genes involved in carbon acquisition, iron binding and pathogenesis. Some of the up-regulated membrane genes, including ABC transporters, virulence-associated autotransporters (vtaAs) and several hypothetical proteins, were only present in virulent H. parasuis strains, highlighting their significance as markers of disease potential. Finally, the analysis also revealed the presence of numerous antisense transcripts with possible roles in gene regulation. In summary, this data sheds some light on the scarcely studied in vivo transcriptome of H. parasuis, revealing nutritional virulence as an adaptive strategy for host survival, besides induction of classical virulence factors.
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Affiliation(s)
- Bernardo Bello-Ortí
- Centre de Recerca en Sanitat Animal (CReSA), Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Campus de la Universitat Autònoma de Barcelona, Bellaterra, 08193, Cerdanyola del Vallès, Spain.
| | - Kate J Howell
- Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge, CB3 0ES, UK.
| | - Alexander W Tucker
- Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge, CB3 0ES, UK.
| | - Duncan J Maskell
- Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge, CB3 0ES, UK.
| | - Virginia Aragon
- Centre de Recerca en Sanitat Animal (CReSA), Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Campus de la Universitat Autònoma de Barcelona, Bellaterra, 08193, Cerdanyola del Vallès, Spain.
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In vivo gene expression in Mannheimia haemolytica A1 during a time-course trial in the bovine host. Vet Microbiol 2012; 158:163-71. [PMID: 22386672 DOI: 10.1016/j.vetmic.2012.01.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 01/25/2012] [Accepted: 01/31/2012] [Indexed: 12/21/2022]
Abstract
The objective of this study is to examine the expression of Mannheimia haemolytica genes over time during the early stage of infection. In addition, gene expression at different sites of infection in the bovine host was examined. A time-course experiment was designed to collect pharyngeal swabs and lung washings from the same animals over two time points. Six calves were experimentally challenged with M. haemolytica A1; pharyngeal swabs were collected from all animals 5h post infection. Three calves were euthanized at 6h; pharyngeal swabs were collected from the remaining 3 calves at 12h and the calves were euthanized. Lung washings were recovered from all animals at necropsy. Total RNA was prepared from the pharyngeal swabs and lung washings and primers for eight well characterized virulence-associated genes were used in qRT-PCR to examine mRNA levels. The expression of key virulence genes such as lktA, gcp and tbpB was higher in vivo compared to in vitro with the highest changes observed from 6 to 12h. The expression of lktA and gapA increased while expression of fbpA, gs60, nmaA and tbpB was found to decreased over time in the 6h period. Gene expression profiles in the lungs versus the pharynx also differed, with most genes (fbpA, tbpB, nmaA, gs60, lktA and narP) showing higher expressing in lung washings. This is the first study to follow gene expression by M. haemolytica in the same animal over time during an infection.
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