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Noioso CM, Bevilacqua L, Acerra GM, Valle PD, Serio M, Pecoraro A, Rienzo A, De Marca U, De Biasi G, Vinciguerra C, Piscosquito G, Toriello A, Tozza S, Barone P, Iovino A. The spectrum of anti-GQ1B antibody syndrome: beyond Miller Fisher syndrome and Bickerstaff brainstem encephalitis. Neurol Sci 2024:10.1007/s10072-024-07686-3. [PMID: 38987510 DOI: 10.1007/s10072-024-07686-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 07/03/2024] [Indexed: 07/12/2024]
Abstract
INTRODUCTION Since the initial identification of Miller Fisher syndrome (MFS) and Bickerstaff brainstem encephalitis (BBE),significant milestones have been achieved in understanding these diseases.Discoveries of common serum antibodies (IgG anti-GQ1b), antecedent infections, neurophysiological data, andneuroimaging suggested a shared autoimmune pathogenetic mechanism rather than distinct pathogenesis, leadingto the hypothesis that both diseases are part of a unified syndrome, termed "Fisher-Bickerstaff syndrome". The subsequent identification of atypical anti-GQ1b-positive forms expanded the classification to a broader condition known as "Anti-GQ1b-Antibody syndrome". METHODS An exhaustive literature review was conducted, analyzing a substantial body of research spanning from the initialdescriptions of the syndrome's components to recent developments in diagnostic classification and researchperspectives. RESULTS Anti-GQ1b syndrome encompasses a continuous spectrum of conditions defined by a common serological profilewith varying degrees of peripheral (PNS) and central nervous system (CNS) involvement. MFS and BBE represent theopposite ends of this spectrum, with MFS primarily affecting the PNS and BBE predominantly involving the CNS.Recently identified atypical forms, such as acute ophthalmoparesis, acute ataxic neuropathy withoutophthalmoparesis, Guillain-Barré syndrome (GBS) with ophthalmoparesis, MFS-GBS and BBE-GBS overlap syndromes,have broadened this spectrum. CONCLUSION This work aims to provide an extensive, detailed, and updated overview of all aspects of the anti-GQ1b syndromewith the intention of serving as a stepping stone for further shaping thereof. Special attention was given to therecently identified atypical forms, underscoring their significance in redefining the boundaries of the syndrome.
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Affiliation(s)
- Ciro Maria Noioso
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy.
| | - Liliana Bevilacqua
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Gabriella Maria Acerra
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Paola Della Valle
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Marina Serio
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Agnese Pecoraro
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Annalisa Rienzo
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Umberto De Marca
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Giuseppe De Biasi
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Claudia Vinciguerra
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Giuseppe Piscosquito
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Antonella Toriello
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Stefano Tozza
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy
| | - Paolo Barone
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
| | - Aniello Iovino
- Neurology Unit, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", University of Salerno, Salerno, Italy
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Ostenfeld LJ, Sørensen AN, Neve H, Vitt A, Klumpp J, Sørensen MCH. A hybrid receptor binding protein enables phage F341 infection of Campylobacter by binding to flagella and lipooligosaccharides. Front Microbiol 2024; 15:1358909. [PMID: 38380094 PMCID: PMC10877375 DOI: 10.3389/fmicb.2024.1358909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 01/18/2024] [Indexed: 02/22/2024] Open
Abstract
Flagellotropic bacteriophages are interesting candidates as therapeutics against pathogenic bacteria dependent on flagellar motility for colonization and causing disease. Yet, phage resistance other than loss of motility has been scarcely studied. Here we developed a soft agar assay to study flagellotropic phage F341 resistance in motile Campylobacter jejuni. We found that phage adsorption was prevented by diverse genetic mutations in the lipooligosaccharides forming the secondary receptor of phage F341. Genome sequencing showed phage F341 belongs to the Fletchervirus genus otherwise comprising capsular-dependent C. jejuni phages. Interestingly, phage F341 encodes a hybrid receptor binding protein (RBP) predicted as a short tail fiber showing partial similarity to RBP1 encoded by capsular-dependent Fletchervirus, but with a receptor binding domain similar to tail fiber protein H of C. jejuni CJIE1 prophages. Thus, C. jejuni prophages may represent a genetic pool from where lytic Fletchervirus phages can acquire new traits like recognition of new receptors.
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Affiliation(s)
- Line Jensen Ostenfeld
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | | | - Horst Neve
- Department of Microbiology and Biotechnology, Max-Rubner Institut, Kiel, Germany
| | - Amira Vitt
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Jochen Klumpp
- Institute for Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
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Ortega-Sanz I, García M, Bocigas C, Megías G, Melero B, Rovira J. Genomic Characterization of Campylobacter jejuni Associated with Perimyocarditis: A Family Case Report. Foodborne Pathog Dis 2023; 20:368-373. [PMID: 37366876 DOI: 10.1089/fpd.2023.0010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023] Open
Abstract
Campylobacter spp. is the leading cause of foodborne gastrointestinal infections in humans worldwide. This study reports the first case of four family members who had contact with the same source of Campylobacter jejuni contamination with different results. Only the little siblings were infected by the same C. jejuni strain, but with different symptoms. Whereas the daughter was slightly affected with mild enteritis, the son suffered a longer campylobacteriosis followed with a perimyocarditis. This is the first case of the youngest patient affected by C. jejuni-related perimyocarditis published to date. The genomes of both strains were characterized by whole-genome sequencing and compared with the C. jejuni NCTC 11168 genome to gain insights into the molecular features that may be associated with perimyocarditis. Various comparison tools were used for the comparative genomics analysis, including the identification of virulence and antimicrobial resistance genes, phase variable (PV) genes, and single nucleotide polymorphisms (SNPs) identification. Comparisons of the strains identified 16 SNPs between them, which constituted small but significant changes mainly affecting the ON/OFF state of PV genes after passing through both hosts. These results suggest that PV occurs during human colonization, which modulates bacteria virulence through human host adaptation, which ultimately is related to complications after a campylobacteriosis episode depending on the host status. The findings highlight the importance of the relation between host and pathogen in severe complications of Campylobacter infections.
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Affiliation(s)
- Irene Ortega-Sanz
- Department of Biotechnology and Food Science, University of Burgos, Burgos, Spain
| | - Marcial García
- Department of Biotechnology and Food Science, University of Burgos, Burgos, Spain
| | - Carolina Bocigas
- Department of Biotechnology and Food Science, University of Burgos, Burgos, Spain
| | - Gregoria Megías
- Microbiology Department of the University Hospital of Burgos (HUBU), Burgos, Spain
| | - Beatriz Melero
- Department of Biotechnology and Food Science, University of Burgos, Burgos, Spain
| | - Jordi Rovira
- Department of Biotechnology and Food Science, University of Burgos, Burgos, Spain
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4
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Bell A, Severi E, Owen CD, Latousakis D, Juge N. Biochemical and structural basis of sialic acid utilization by gut microbes. J Biol Chem 2023; 299:102989. [PMID: 36758803 PMCID: PMC10017367 DOI: 10.1016/j.jbc.2023.102989] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 02/01/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023] Open
Abstract
The human gastrointestinal (GI) tract harbors diverse microbial communities collectively known as the gut microbiota that exert a profound impact on human health and disease. The repartition and availability of sialic acid derivatives in the gut have a significant impact on the modulation of gut microbes and host susceptibility to infection and inflammation. Although N-acetylneuraminic acid (Neu5Ac) is the main form of sialic acids in humans, the sialic acid family regroups more than 50 structurally and chemically distinct modified derivatives. In the GI tract, sialic acids are found in the terminal location of mucin glycan chains constituting the mucus layer and also come from human milk oligosaccharides in the infant gut or from meat-based foods in adults. The repartition of sialic acid in the GI tract influences the gut microbiota composition and pathogen colonization. In this review, we provide an update on the mechanisms underpinning sialic acid utilization by gut microbes, focusing on sialidases, transporters, and metabolic enzymes.
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Affiliation(s)
- Andrew Bell
- Quadram Institute Bioscience, Gut Microbes and Health Institute Strategic Programme, Norwich, United Kingdom
| | - Emmanuele Severi
- Microbes in Health and Disease, Biosciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - C David Owen
- Diamond Light Source Ltd, Diamond House, Harwell Science and Innovation Campus, Didcot, United Kingdom
| | - Dimitrios Latousakis
- Quadram Institute Bioscience, Gut Microbes and Health Institute Strategic Programme, Norwich, United Kingdom
| | - Nathalie Juge
- Quadram Institute Bioscience, Gut Microbes and Health Institute Strategic Programme, Norwich, United Kingdom.
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Dudek B, Rybka J, Bugla-Płoskońska G, Korzeniowska-Kowal A, Futoma-Kołoch B, Pawlak A, Gamian A. Biological functions of sialic acid as a component of bacterial endotoxin. Front Microbiol 2022; 13:1028796. [PMID: 36338080 PMCID: PMC9631793 DOI: 10.3389/fmicb.2022.1028796] [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: 08/26/2022] [Accepted: 10/05/2022] [Indexed: 11/28/2022] Open
Abstract
Lipopolysaccharide (endotoxin, LPS) is an important Gram-negative bacteria antigen. LPS of some bacteria contains sialic acid (Neu5Ac) as a component of O-antigen (O-Ag), in this review we present an overview of bacteria in which the presence of Neu5Ac has been confirmed in their outer envelope and the possible ways that bacteria can acquire Neu5Ac. We explain the role of Neu5Ac in bacterial pathogenesis, and also involvement of Neu5Ac in bacterial evading the host innate immunity response and molecular mimicry phenomenon. We also highlight the role of sialic acid in the mechanism of bacterial resistance to action of serum complement. Despite a number of studies on involvement of Neu5Ac in bacterial pathogenesis many aspects of this phenomenon are still not understood.
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Affiliation(s)
- Bartłomiej Dudek
- Department of Microbiology, University of Wrocław, Wrocław, Poland
- *Correspondence: Bartłomiej Dudek,
| | - Jacek Rybka
- Department of Immunology of Infectious Diseases, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | | | - Agnieszka Korzeniowska-Kowal
- Department of Immunology of Infectious Diseases, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | | | | | - Andrzej Gamian
- Department of Immunology of Infectious Diseases, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
- Andrzej Gamian,
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6
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Stein RA. Campylobacter jejuni and Postinfectious Autoimmune Diseases: A Proof of Concept in Glycobiology. ACS Infect Dis 2022; 8:1981-1991. [PMID: 36137262 DOI: 10.1021/acsinfecdis.2c00397] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Glycans, one of the most diverse groups of macromolecules, are ubiquitous constituents of all cells and have many critical functions, including the interaction between microbes and their hosts. One of the best model organisms to study the host-pathogen interaction, the gastrointestinal pathogen Campylobacter jejuni dedicates extensive resources to glycosylation and exhibits a diverse array of surface sugar-coated displays. The first bacterium where N-linked glycosylation was described, C. jejuni can additionally modify proteins by O-linked glycosylation, has extracellular capsular polysaccharides that are important for virulence and represent the major determinant of the Penner serotyping scheme, and has outer membrane lipooligosaccharides that participate in processes such as colonization, survival, inflammation, and immune evasion. In addition to causing gastrointestinal disease and extraintestinal infections, C. jejuni was also linked to postinfectious autoimmune neuropathies, of which Guillain-Barré syndrome (GBS) and Miller Fisher syndrome (MFS) are the most extensively characterized ones. These postinfectious autoimmune neuropathies occur when specific bacterial surface lipooligosaccharides mimic gangliosides in the host nervous system. C. jejuni provided the first proof of concept for the involvement of molecular mimicry in the pathogenesis of an autoimmune disease and, also, for the ability of a bacterial polymorphism to shape the clinical presentation of the postinfectious autoimmune neuropathy. The scientific journey that culminated with elucidating the mechanistic details of the C. jejuni-GBS link was the result of contributions from several fields, including microbiology, structural biology, glycobiology, genetics, and immunology and provides an inspiring and important example to interrogate other instances of molecular mimicry and their involvement in autoimmune disease.
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Affiliation(s)
- Richard A Stein
- Industry Associate Professor NYU Tandon School of Engineering, Department of Chemical and Biomolecular Engineering, 6 MetroTech Center, Brooklyn, New York 11201, United States
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7
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Hameed A, Ketley JM, Woodacre A, Machado LR, Marsden GL. Molecular and in silico typing of the lipooligosaccharide biosynthesis gene cluster in Campylobacter jejuni and Campylobacter coli. PLoS One 2022; 17:e0265585. [PMID: 35358234 PMCID: PMC8970381 DOI: 10.1371/journal.pone.0265585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 03/05/2022] [Indexed: 11/25/2022] Open
Abstract
The extensive genetic variation in the lipooligosaccharide (LOS) core biosynthesis gene cluster has led to the development of a classification system; with 8 classes (I-VIII) for Campylobacter coli (C. coli) LOS region and with 23 classes (A-W) or four groups (1–4) for Campylobacter jejuni (C. jejuni) LOS region. PCR based LOS locus type identification for C. jejuni clinical isolates from a UK hospital as well as in silico LOS locus analysis for C. jejuni and C. coli genome sequences from GenBank was carried out to determine the frequencies of various LOS genotypes in C. jejuni and C. coli. Analysis of LOS gene content in 60 clinical C. jejuni isolates and 703 C. jejuni genome sequences revealed that class B (Group 1) was the most abundant LOS class in C. jejuni. The hierarchy of C. jejuni LOS group prevalence (group 1 > group 2 > group 3 > group 4) as well as the hierarchy of the frequency of C. jejuni LOS classes present within the group 1 (B > C > A > R > M > V), group 2 (H/P > O > E > W), group 3 (F > K > S) and group 4 (G > L) was identified. In silico analysis of LOS gene content in 564 C. coli genome sequences showed class III as the most abundant LOS locus type in C. coli. In silico analysis of LOS gene content also identified three novel LOS types of C. jejuni and previously unknown LOS biosynthesis genes in C. coli LOS locus types I, II, III, V and VIII. This study provides C. jejuni and C. coli LOS loci class frequencies in a smaller collection of C. jejuni clinical isolates as well as within the larger, worldwide database of C. jejuni and C. coli.
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Affiliation(s)
- Amber Hameed
- Centre for Physical Activity and Life Sciences, University of Northampton, Northampton, United Kingdom
| | - Julian M. Ketley
- Department of Genetics and Genome Biology, University of Leicester, Leicester, United Kingdom
| | - Alexandra Woodacre
- Centre for Physical Activity and Life Sciences, University of Northampton, Northampton, United Kingdom
- Department of Genetics and Genome Biology, University of Leicester, Leicester, United Kingdom
| | - Lee R. Machado
- Centre for Physical Activity and Life Sciences, University of Northampton, Northampton, United Kingdom
- Department of Genetics and Genome Biology, University of Leicester, Leicester, United Kingdom
- * E-mail:
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8
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Wu Q, Ye J, Chao Y, Dong S, Niu M, Wang Y, Liu Z, Chen W, Ge N, Lu S, Wang PG, Chen M. Chemoenzymatic Labeling Pathogens Containing Terminal N-Acetylneuraminic Acid-α(2-3)-Galactose Glycans. ACS Infect Dis 2022; 8:657-664. [PMID: 35179863 DOI: 10.1021/acsinfecdis.2c00011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The N-acetylneuraminic acid-α(2-3)-galactose epitope is often located at the nonreducing terminal ends of glycans on the envelopes of many pathogens, and it is believed that this structure mimics a host's oligosaccharide so as to circumvent and/or counteract the host's immune responses. A chemoenzymatic method for the rapid and sensitive detection of N-acetylneuraminic acid-α(2-3)-galactose has been built, so we planned to examine whether the chemoenzymatic method could be applied on the detection of N-acetylneuraminic acid-α(2-3)-galactose on pathogens. Our results revealed that the chemoenzymatic method was rapid and sensitive for labeling live or dead Gram-positive Streptococcus agalactiae A909 and Gram-negative Campylobacter jejuni MK104 with N-acetylneuraminic acid-α(2-3)-galactose. This study suggested that the chemoenzymatic method was a new strategy for labeling pathogens and had potential for the diagnosis of or therapeutics for pathogenic infection.
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Affiliation(s)
- Qizheng Wu
- The State Key Laboratory of Microbial Technology and National Glycoengineering Research Center, Shandong University, Qingdao 266237, China
- Medical Research Center, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Jinfeng Ye
- The State Key Laboratory of Microbial Technology and National Glycoengineering Research Center, Shandong University, Qingdao 266237, China
| | - Yicong Chao
- Medical Research Center, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Shuchen Dong
- Department of Gastroenterology, Qingdao Municipal Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266000, China
| | - Min Niu
- Medical Research Center, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Yaqian Wang
- The State Key Laboratory of Microbial Technology and National Glycoengineering Research Center, Shandong University, Qingdao 266237, China
| | - Zhaoxi Liu
- The State Key Laboratory of Microbial Technology and National Glycoengineering Research Center, Shandong University, Qingdao 266237, China
| | - Wang Chen
- Department of Neurology, Linyi People’s Hospital, Linyi 276000, China
| | - Ningning Ge
- Department of Clinical Laboratory, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Shuhua Lu
- Department of Clinical Laboratory, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Peng George Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Min Chen
- The State Key Laboratory of Microbial Technology and National Glycoengineering Research Center, Shandong University, Qingdao 266237, China
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9
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Laman JD, Huizinga R, Boons GJ, Jacobs BC. Guillain-Barré syndrome: expanding the concept of molecular mimicry. Trends Immunol 2022; 43:296-308. [PMID: 35256276 PMCID: PMC9016725 DOI: 10.1016/j.it.2022.02.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/06/2022] [Accepted: 02/07/2022] [Indexed: 12/18/2022]
Abstract
Guillain-Barré syndrome (GBS) is a rapidly progressive, monophasic, and potentially devastating immune-mediated neuropathy in humans. Preceding infections trigger the production of cross-reactive antibodies against gangliosides concentrated in human peripheral nerves. GBS is elicited by at least five distinct common bacterial and viral pathogens, speaking to the notion of polymicrobial disease causation. This opinion emphasizes that GBS is the best-supported example of true molecular mimicry at the B cell level. Moreover, we argue that mechanistically, single and multiplexed microbial carbohydrate epitopes induce IgM, IgA, and IgG subclasses in ways that challenge the classic concept of thymus-dependent (TD) versus thymus-independent (TI) antibody responses in GBS. Finally, we discuss how GBS can be exemplary for driving innovation in diagnostics and immunotherapy for other antibody-driven neurological diseases.
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10
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Sim L, Thompson N, Geissner A, Withers SG, Wakarchuk WW. Mammalian sialyltransferases allow efficient E. coli-based production of mucin-type O-glycoproteins but can also transfer Kdo. Glycobiology 2021; 32:429-440. [PMID: 34939113 DOI: 10.1093/glycob/cwab130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/30/2021] [Accepted: 12/11/2021] [Indexed: 11/13/2022] Open
Abstract
The prospect of producing human-like glycoproteins in bacteria is becoming attractive as an alternative to already-established but costly mammalian cell expression systems. We previously described an E. coli expression platform that uses a dual-plasmid approach to produce simple mucin type O-glycoproteins: one plasmid encoding the target protein and another the O-glycosylation machinery. Here, we expand the capabilities of our platform to carry out sialylation and demonstrate the high-yielding production of human interferon α2b and human growth hormone bearing mono- and disialylated T-antigen glycans. This is achieved through engineering an E. coli strain to produce CMP-Neu5Ac and introducing various α-2,3- and α-2,6 mammalian or bacterial sialyltransferases into our O-glycosylation operons. We further demonstrate that mammalian sialyltransferases, including porcine ST3Gal1, human ST6GalNAc2, and human ST6GalNAc4, are very effective in vivo and outperform some of the bacterial sialyltransferases tested, including Campylobacter jejuni Cst-I and Cst-II. In the process we came upon a way of modifying T-Antigen with Kdo, using a previously uncharacterised Kdo-transferase activity of porcine ST3Gal1. Ultimately, the heterologous expression of mammalian sialyltransferases in E. coli shows promise for the further development of bacterial systems in therapeutic glycoprotein production.
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Affiliation(s)
- Lyann Sim
- Department of Chemistry and Michael Smith Laboratories, University of British Columbia, Vancouver, BC, V6T 1Z1
| | - Nicole Thompson
- Department of Biological Sciences, University of Alberta, T6G 2E9
| | - Andreas Geissner
- Department of Chemistry and Michael Smith Laboratories, University of British Columbia, Vancouver, BC, V6T 1Z1
| | - Stephen G Withers
- Department of Chemistry and Michael Smith Laboratories, University of British Columbia, Vancouver, BC, V6T 1Z1
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11
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Zhang X, Wang C, Lv X, Liu L, Li J, Du G, Wang M, Liu Y. Engineering of Synthetic Multiplexed Pathways for High-Level N-Acetylneuraminic Acid Bioproduction. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:14868-14877. [PMID: 34851104 DOI: 10.1021/acs.jafc.1c06017] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
N-Acetylneuraminic acid (NeuAc) is widely used as a supplement to promote brain health and enhance immunity. However, the low efficiency of de novo NeuAc synthesis limits its cost-efficient bioproduction. Herein, a synthetic multiplexed pathway engineering (SMPE) strategy is proposed to improve NeuAc synthesis. First, we compare the key enzyme sources and optimize the expression levels of three NeuAc synthesis pathways in Bacillus subtilis; the AGE, NeuC, and NanE pathways, for which NeuAc production reached 3.94, 5.67, and 0.19 g/L, respectively. Next, these synthesis pathways were combined and modularly optimized via the SMPE strategy, with production reaching 7.87 g/L. Finally, fed-batch fermentation in a 5 L fermenter reached 30.10 g/L NeuAc production, the highest reported production using glucose as the sole carbon source. Using a generally regarded as safe strain as a production host, the developed NeuAc-producing approach should be favorable for efficient bioproduction, without the need for plasmids, antibiotics, or chemical inducers.
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Affiliation(s)
- Xiaolong Zhang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Chenyun Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Xueqin Lv
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Long Liu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Jianghua Li
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Guocheng Du
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Miao Wang
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yanfeng Liu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Engineering Research Center of Ministry of Education on Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
- Jiangsu Province Engineering Research Center of Food Synthetic Biotechnology, Jiangnan University, Wuxi 214122, China
- Qingdao Special Food Research Institute, Qingdao 266109, China
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12
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Nothaft H, Bian X, Shajahan A, Miller WG, Bolick DT, Guerrant RL, Azadi P, Ng KKS, Szymanski CM. Detecting Glucose Fluctuations in the Campylobacter jejuni N-Glycan Structure. ACS Chem Biol 2021; 16:2690-2701. [PMID: 34726367 DOI: 10.1021/acschembio.1c00498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Campylobacter jejuni is a significant cause of human gastroenteritis worldwide, and all strains express an N-glycan that is added to at least 80 different proteins. We characterized 98 C. jejuni isolates from infants from 7 low- and middle-income countries and identified 4 isolates unreactive with our N-glycan-specific antiserum that was raised against the C. jejuni heptasaccharide composed of GalNAc-GalNAc-GalNAc(Glc)-GalNAc-GalNAc-diNAcBac. Mass spectrometric analyses indicated these isolates express a hexasaccharide lacking the glucose branch. Although all 4 strains encode the PglI glucosyltransferase (GlcTF), one aspartate in the DXDD motif was missing, an alteration also present in ∼4% of all available PglI sequences. Deleting this residue from an active PglI resulted in a nonfunctional GlcTF when the protein glycosylation system was reconstituted in E. coli, while replacement with Glu/Ala was not deleterious. Molecular modeling proposed a mechanism for how the DXDD residues and the structure/length beyond the motif influence activity. Mouse vaccination with an E. coli strain expressing the full-length heptasaccharide produced N-glycan-specific antibodies and a corresponding reduction in Campylobacter colonization and weight loss following challenge. However, the antibodies did not recognize the hexasaccharide and were unable to opsonize C. jejuni isolates lacking glucose, suggesting this should be considered when designing N-glycan-based vaccines to prevent campylobacteriosis.
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Affiliation(s)
- Harald Nothaft
- Department of Medical Microbiology and Immunology, University of Alberta, Katz Group Centre, Edmonton, Alberta T6G 2E9, Canada
| | - Xiaoming Bian
- Department of Microbiology, University of Georgia, 527 Biological Sciences Building, Athens, Georgia 30602, United States
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
| | - Asif Shajahan
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
| | - William G. Miller
- Produce Safety and Microbiology Research Unit, Agricultural Research Service, United States Department of Agriculture, 800 Buchanan Street, Albany, California 94710, United States
| | - David T. Bolick
- Center for Global Health Equity, Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, Virginia 22908, United States
| | - Richard L. Guerrant
- Center for Global Health Equity, Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, Virginia 22908, United States
| | - Parastoo Azadi
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
| | - Kenneth K. S. Ng
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, Ontario N9B 3P4, Canada
| | - Christine M. Szymanski
- Department of Medical Microbiology and Immunology, University of Alberta, Katz Group Centre, Edmonton, Alberta T6G 2E9, Canada
- Department of Microbiology, University of Georgia, 527 Biological Sciences Building, Athens, Georgia 30602, United States
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
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13
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Heikema AP, Strepis N, Horst-Kreft D, Huynh S, Zomer A, Kelly DJ, Cooper KK, Parker CT. Biomolecule sulphation and novel methylations related to Guillain-Barré syndrome-associated Campylobacter jejuni serotype HS:19. Microb Genom 2021; 7. [PMID: 34723785 PMCID: PMC8743553 DOI: 10.1099/mgen.0.000660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Campylobacter jejuni strains that produce sialylated lipooligosaccharides (LOS) can cause the immune-mediated disease Guillain-Barré syndrome (GBS). The risk of GBS after infection with C. jejuni Penner serotype HS:19 is estimated to be at least six times higher than the average risk. Aside from LOS biosynthesis genes, genomic characteristics that promote an increased risk for GBS following C. jejuni HS:19 infection, remain uncharacterized. We hypothesized that strains with the HS:19 serotype have unique genomic features that explain the increased risk for GBS. We performed genome sequencing, alignments, single nucleotide polymorphisms' analysis and methylome characterization on a subset, and pan-genome analysis on a large number of genomes to compare HS:19 with non-HS:19 C. jejuni genome sequences. Comparison of 36 C. jejuni HS:19 with 874 C. jejuni non-HS:19 genome sequences led to the identification of three single genes and ten clusters containing contiguous genes that were significantly associated with C. jejuni HS:19. One gene cluster of seven genes, localized downstream of the capsular biosynthesis locus, was related to sulphation of biomolecules. This cluster also encoded the campylobacter sialyl transferase Cst-I. Interestingly, sulphated bacterial biomolecules such as polysaccharides can promote immune responses and, therefore, (in the presence of sialic acid) may play a role in the development of GBS. Additional gene clusters included those involved in persistence-mediated pathogenicity and gene clusters involved in restriction-modification systems. Furthermore, characterization of methylomes of two HS:19 strains exhibited novel methylation patterns (5′-CATG-3 and 5′-m6AGTNNNNNNRTTG-3) that could differentially effect gene-expression patterns of C. jejuni HS:19 strains. Our study provides novel insight into specific genetic features and possible virulence factors of C. jejuni associated with the HS:19 serotype that may explain the increased risk of GBS.
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Affiliation(s)
- Astrid P. Heikema
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre (Erasmus MC), Rotterdam, The Netherlands
- *Correspondence: Astrid P. Heikema,
| | - Nikolaos Strepis
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre (Erasmus MC), Rotterdam, The Netherlands
| | - Deborah Horst-Kreft
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre (Erasmus MC), Rotterdam, The Netherlands
| | - Steven Huynh
- Produce Safety and Microbiology Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, California, USA
| | - Aldert Zomer
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - David J. Kelly
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, UK
| | - Kerry K. Cooper
- School of Animal and Comparative Biomedical Sciences, College of Agriculture and Life Sciences, University of Arizona, Tucson, Arizona, USA
| | - Craig T. Parker
- Produce Safety and Microbiology Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, California, USA
- *Correspondence: Craig T. Parker,
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14
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Lopes GV, Ramires T, Kleinubing NR, Scheik LK, Fiorentini ÂM, Padilha da Silva W. Virulence factors of foodborne pathogen Campylobacterjejuni. Microb Pathog 2021; 161:105265. [PMID: 34699927 DOI: 10.1016/j.micpath.2021.105265] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 04/27/2021] [Accepted: 10/21/2021] [Indexed: 12/26/2022]
Abstract
Campylobacter jejuni is a highly frequent cause of gastrointestinal foodborne disease in humans throughout the world. Disease outcomes vary from mild to severe diarrhea, and in rare cases the Guillain-Barré syndrome or reactive arthritis can develop as a post-infection complication. Transmission to humans usually occurs via the consumption of a range of foods, especially those associated with the consumption of raw or undercooked poultry meat, unpasteurized milk, and water-based environmental sources. When associated to food or water ingestion, the C. jejuni enters the human host intestine via the oral route and colonizes the distal ileum and colon. When it adheres and colonizes the intestinal cell surfaces, the C. jejuni is expected to express several putative virulence factors, which cause damage to the intestine either directly, by cell invasion and/or production of toxin(s), or indirectly, by triggering inflammatory responses. This review article highlights various C. jejuni characteristics - such as motility and chemotaxis - that contribute to the biological fitness of the pathogen, as well as factors involved in human host cell adhesion and invasion, and their potential role in the development of the disease. We have analyzed and critically discussed nearly 180 scientific articles covering the latest improvements in the field.
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Affiliation(s)
- Graciela Volz Lopes
- Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas (UFPel), Caixa Postal 354, 96160-000, Pelotas, RS, Brazil
| | - Tassiana Ramires
- Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas (UFPel), Caixa Postal 354, 96160-000, Pelotas, RS, Brazil
| | - Natalie Rauber Kleinubing
- Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas (UFPel), Caixa Postal 354, 96160-000, Pelotas, RS, Brazil
| | - Letícia Klein Scheik
- Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas (UFPel), Caixa Postal 354, 96160-000, Pelotas, RS, Brazil
| | - Ângela Maria Fiorentini
- Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas (UFPel), Caixa Postal 354, 96160-000, Pelotas, RS, Brazil
| | - Wladimir Padilha da Silva
- Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas (UFPel), Caixa Postal 354, 96160-000, Pelotas, RS, Brazil.
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15
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Yakovlieva L, Fülleborn JA, Walvoort MTC. Opportunities and Challenges of Bacterial Glycosylation for the Development of Novel Antibacterial Strategies. Front Microbiol 2021; 12:745702. [PMID: 34630370 PMCID: PMC8498110 DOI: 10.3389/fmicb.2021.745702] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 08/27/2021] [Indexed: 12/29/2022] Open
Abstract
Glycosylation is a ubiquitous process that is universally conserved in nature. The various products of glycosylation, such as polysaccharides, glycoproteins, and glycolipids, perform a myriad of intra- and extracellular functions. The multitude of roles performed by these molecules is reflected in the significant diversity of glycan structures and linkages found in eukaryotes and prokaryotes. Importantly, glycosylation is highly relevant for the virulence of many bacterial pathogens. Various surface-associated glycoconjugates have been identified in bacteria that promote infectious behavior and survival in the host through motility, adhesion, molecular mimicry, and immune system manipulation. Interestingly, bacterial glycosylation systems that produce these virulence factors frequently feature rare monosaccharides and unusual glycosylation mechanisms. Owing to their marked difference from human glycosylation, bacterial glycosylation systems constitute promising antibacterial targets. With the rise of antibiotic resistance and depletion of the antibiotic pipeline, novel drug targets are urgently needed. Bacteria-specific glycosylation systems are especially promising for antivirulence therapies that do not eliminate a bacterial population, but rather alleviate its pathogenesis. In this review, we describe a selection of unique glycosylation systems in bacterial pathogens and their role in bacterial homeostasis and infection, with a focus on virulence factors. In addition, recent advances to inhibit the enzymes involved in these glycosylation systems and target the bacterial glycan structures directly will be highlighted. Together, this review provides an overview of the current status and promise for the future of using bacterial glycosylation to develop novel antibacterial strategies.
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Affiliation(s)
- Liubov Yakovlieva
- Faculty of Science and Engineering, Stratingh Institute for Chemistry, University of Groningen, Groningen, Netherlands
| | - Julius A Fülleborn
- Faculty of Science and Engineering, Stratingh Institute for Chemistry, University of Groningen, Groningen, Netherlands
| | - Marthe T C Walvoort
- Faculty of Science and Engineering, Stratingh Institute for Chemistry, University of Groningen, Groningen, Netherlands
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16
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Jong H, Wösten MMSM, Wennekes T. Sweet impersonators: Molecular mimicry of host glycans by bacteria. Glycobiology 2021; 32:11-22. [PMID: 34939094 PMCID: PMC8881735 DOI: 10.1093/glycob/cwab104] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/03/2021] [Accepted: 09/28/2021] [Indexed: 12/02/2022] Open
Abstract
All bacteria display surface-exposed glycans that can play an important role in their interaction with the host and in select cases mimic the glycans found on host cells, an event called molecular or glycan mimicry. In this review, we highlight the key bacteria that display human glycan mimicry and provide an overview of the involved glycan structures. We also discuss the general trends and outstanding questions associated with human glycan mimicry by bacteria. Finally, we provide an overview of several techniques that have emerged from the discipline of chemical glycobiology, which can aid in the study of the composition, variability, interaction and functional role of these mimicking glycans.
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Affiliation(s)
- Hanna Jong
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences and Bijvoet Center for Biomedical Research, Utrecht University, Utrecht, The Netherlands.,Department of Biomolecular Health Sciences, Utrecht University, Utrecht, The Netherlands
| | - Marc M S M Wösten
- Department of Biomolecular Health Sciences, Utrecht University, Utrecht, The Netherlands
| | - Tom Wennekes
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences and Bijvoet Center for Biomedical Research, Utrecht University, Utrecht, The Netherlands
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17
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Akase S, Yokoyama K, Obata H, Monma C, Konishi N, Hatakeyama K, Saiki D, Maeda M, Asayama C, Suzuki J, Sadamasu K. Multi-Locus Sequence Typing and Lipooligosaccharide Class Analysis of Campylobacter jejuni HS:19 Isolated in Japan. Jpn J Infect Dis 2021; 75:199-201. [PMID: 34470968 DOI: 10.7883/yoken.jjid.2021.341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Campylobacter jejuni is a major foodborne pathogen causing enteritis in humans and is also known as an antecedent infectious factor for Guillain-Barré syndrome (GBS). The onset of GBS after C. jejuni infection results from molecular mimicry between human neuronal ganglioside and C. jejuni lipooligosaccharide (LOS). C. jejuni HS:19 has been previously reported to be isolated from GBS cases more frequently than other serotypes in Japan. Therefore, in this study, we performed molecular analysis of 88 HS:19 isolates from GBS cases, sporadic diarrheal patients, and poultry meats using multi-locus sequence typing and LOS class analysis. As a result, 87 of the 88 HS:19 isolates were typed as ST22 / CC22 and LOS class A1, while one was typed as ST1947 / CC22 and LOS class A1. Furthermore, the analysis of other 331 isolates from sporadic enteritis cases shows that only 34 (10.3%) were typed as LOS class A, including HS:19 (25 isolates), HS:2 (8 isolates), and HS:4c (1 isolate). In conclusion, C. jejuni HS:19 had high clonality, regardless of its origin, over other capsule types in Japan.
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Affiliation(s)
- Satoru Akase
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Keiko Yokoyama
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Hiromi Obata
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Chie Monma
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Noriko Konishi
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Kaoru Hatakeyama
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Dai Saiki
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Masako Maeda
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Chikako Asayama
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Jun Suzuki
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Kenji Sadamasu
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
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18
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Cayrou C, Barratt NA, Ketley JM, Bayliss CD. Phase Variation During Host Colonization and Invasion by Campylobacter jejuni and Other Campylobacter Species. Front Microbiol 2021; 12:705139. [PMID: 34394054 PMCID: PMC8355987 DOI: 10.3389/fmicb.2021.705139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/09/2021] [Indexed: 11/13/2022] Open
Abstract
Phase variation (PV) is a phenomenon common to a variety of bacterial species for niche adaption and survival in challenging environments. Among Campylobacter species, PV depends on the presence of intergenic and intragenic hypermutable G/C homopolymeric tracts. The presence of phase-variable genes is of especial interest for species that cause foodborne or zoonotic infections in humans. PV influences the formation and the structure of the lipooligosaccharide, flagella, and capsule in Campylobacter species. PV of components of these molecules is potentially important during invasion of host tissues, spread within hosts and transmission between hosts. Motility is a critical phenotype that is potentially modulated by PV. Variation in the status of the phase-variable genes has been observed to occur during colonization in chickens and mouse infection models. Interestingly, PV is also involved in bacterial survival of attack by bacteriophages even during chicken colonization. This review aims to explore and discuss observations of PV during model and natural infections by Campylobacter species and how PV may affect strategies for fighting infections by this foodborne pathogen.
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Affiliation(s)
- Caroline Cayrou
- Department of Genetics and Genome Biology, University of Leicester, Leicester, United Kingdom
| | - Natalie A Barratt
- Department of Genetics and Genome Biology, University of Leicester, Leicester, United Kingdom
| | - Julian M Ketley
- Department of Genetics and Genome Biology, University of Leicester, Leicester, United Kingdom
| | - Christopher D Bayliss
- Department of Genetics and Genome Biology, University of Leicester, Leicester, United Kingdom
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19
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Guo Z, Tang Y, Tang W, Chen Y. Heptose-containing bacterial natural products: structures, bioactivities, and biosyntheses. Nat Prod Rep 2021; 38:1887-1909. [PMID: 33704304 DOI: 10.1039/d0np00075b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Covering: up to 2020Glycosylated natural products hold great potential as drugs for the treatment of human and animal diseases. Heptoses, known as seven-carbon-chain-containing sugars, are a group of saccharides that are rarely observed in natural products. Based on the structures of the heptoses, the heptose-containing natural products can be divided into four groups, characterized by heptofuranose, highly-reduced heptopyranose, d-heptopyranose, and l-heptopyranose. Many of them possess remarkable biological properties, including antibacterial, antifungal, antitumor, and pain relief activities, thereby attracting great interest in biosynthesis and chemical synthesis studies to understand their construction mechanisms and structure-activity relationships. In this review, we summarize the structural properties, biological activities, and recent progress in the biosynthesis of bacterial natural products featuring seven-carbon-chain-containing sugars. The biosynthetic origins of the heptose moieties are emphasized.
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Affiliation(s)
- Zhengyan Guo
- State Key Laboratory of Microbial Resources, CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, 100101 Beijing, China. and University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Yue Tang
- State Key Laboratory of Microbial Resources, CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, 100101 Beijing, China. and University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Wei Tang
- State Key Laboratory of Microbial Resources, CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, 100101 Beijing, China. and University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Yihua Chen
- State Key Laboratory of Microbial Resources, CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, 100101 Beijing, China. and University of Chinese Academy of Sciences, 100049 Beijing, China
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20
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Ramos AP, Leonhard SE, Halstead SK, Cuba MA, Castañeda CC, Dioses JA, Tipismana MA, Abanto JT, Llanos A, Gourlay D, Grogl M, Ramos M, Rojas JD, Meza R, Puiu D, Sherman RM, Salzberg SL, Simner PJ, Willison HJ, Jacobs BC, Cornblath DR, Umeres HF, Pardo CA. Guillain-Barré Syndrome Outbreak in Peru 2019 Associated With Campylobacter jejuni Infection. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2021; 8:e952. [PMID: 33547152 PMCID: PMC8057064 DOI: 10.1212/nxi.0000000000000952] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 11/23/2020] [Indexed: 12/02/2022]
Abstract
OBJECTIVE To identify the clinical phenotypes and infectious triggers in the 2019 Peruvian Guillain-Barré syndrome (GBS) outbreak. METHODS We prospectively collected clinical and neurophysiologic data of patients with GBS admitted to a tertiary hospital in Lima, Peru, between May and August 2019. Molecular, immunologic, and microbiological methods were used to identify causative infectious agents. Sera from 41 controls were compared with cases for antibodies to Campylobacter jejuni and gangliosides. Genomic analysis was performed on 4 C jejuni isolates. RESULTS The 49 included patients had a median age of 44 years (interquartile range [IQR] 30-54 years), and 28 (57%) were male. Thirty-two (65%) had symptoms of a preceding infection: 24 (49%) diarrhea and 13 (27%) upper respiratory tract infection. The median time between infectious to neurologic symptoms was 3 days (IQR 2-9 days). Eighty percent had a pure motor form of GBS, 21 (43%) had the axonal electrophysiologic subtype, and 18% the demyelinating subtype. Evidence of recent C jejuni infection was found in 28/43 (65%). No evidence of recent arbovirus infection was found. Twenty-three cases vs 11 controls (OR 3.3, confidence interval [CI] 95% 1.2-9.2, p < 0.01) had IgM and/or IgA antibodies against C jejuni. Anti-GM1:phosphatidylserine and/or anti-GT1a:GM1 heteromeric complex antibodies were strongly positive in cases (92.9% sensitivity and 68.3% specificity). Genomic analysis showed that the C jejuni strains were closely related and had the Asn51 polymorphism at cstII gene. CONCLUSIONS Our study indicates that the 2019 Peruvian GBS outbreak was associated with C jejuni infection and that the C jejuni strains linked to GBS circulate widely in different parts of the world.
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Affiliation(s)
- Ana P. Ramos
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Sonja E. Leonhard
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Susan K. Halstead
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Mireya A. Cuba
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Carlos C. Castañeda
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Jose A. Dioses
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Martin A. Tipismana
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Jesus T. Abanto
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Alejandro Llanos
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Dawn Gourlay
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Max Grogl
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Mariana Ramos
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Jesus D. Rojas
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Rina Meza
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Daniela Puiu
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Rachel M. Sherman
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Steven L. Salzberg
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Patricia J. Simner
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Hugh J. Willison
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Bart C. Jacobs
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - David R. Cornblath
- From the Departamento de Medicina (A.P.R., M.A.C., C.C.C., J.A.D., M.A.T., J.T.A., H.F.U.), Servicio de Neurología y Neuropsiquiatría, Hospital Cayetano Heredia, Lima, Perú; Department of Neurology (S.E.L.) and Department of Neurology and Department of Immunology (B.C.J.), Erasmus MC, University Medical Center Rotterdam, Netherlands; Institute of Infection, Immunity and Inflammation (S.K.H., D.G., H.J.W.), University of Glasgow, United Kingdom; Departamento de Enfermedades Infecciosas Tropicales y Dermatológicas (A.L.), Hospital Cayetano Heredia, Lima, Perú; U.S. Naval Medical Research Unit-6 (M.G., M.R., J.D.R., R.M.), Lima, Peru; Center for Computational Biology (D.P., R.M.S., S.L.S.), Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD; and Department of Pathology (P.J.S.), Department of Neurology (D.R.C.), and Department of Neurology and Department of Pathology (C.A.P.), Johns Hopkins University School of Medicine, Baltimore, MD
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Hull DM, Harrell E, van Vliet AHM, Correa M, Thakur S. Antimicrobial resistance and interspecies gene transfer in Campylobacter coli and Campylobacter jejuni isolated from food animals, poultry processing, and retail meat in North Carolina, 2018-2019. PLoS One 2021; 16:e0246571. [PMID: 33571292 PMCID: PMC7877606 DOI: 10.1371/journal.pone.0246571] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 01/21/2021] [Indexed: 12/17/2022] Open
Abstract
The Center for Disease Control and Prevention identifies antimicrobial resistant (AMR) Campylobacter as a serious threat to U.S. public health due to high community burden, increased transmissibility, and limited treatability. The National Antimicrobial Resistance Monitoring System (NARMS) plays an important role in surveillance of AMR bacterial pathogens in humans, food animals and retail meats. This study investigated C. coli and C. jejuni from live food animals, poultry carcasses at production, and retail meat in North Carolina between January 2018-December 2019. Whole genome sequencing and bioinformatics were used for phenotypic and genotypic characterization to compare AMR profiles, virulence factors associated with Guillain-Barré Syndrome (GBS) (neuABC and cst-II or cst-III), and phylogenic linkage between 541 Campylobacter isolates (C. coli n = 343, C. jejuni n = 198). Overall, 90.4% (489/541) Campylobacter isolates tested positive for AMR genes, while 43% (233/541) carried resistance genes for three or more antibiotic classes and were classified molecularly multidrug resistant. AMR gene frequencies were highest against tetracyclines (64.3%), beta-lactams (63.6%), aminoglycosides (38.6%), macrolides (34.8%), quinolones (24.4%), lincosamides (13.5%), and streptothricins (5%). A total of 57.6% (114/198) C. jejuni carried GBS virulence factors, while three C. coli carried the C. jejuni-like lipooligosaccharide locus, neuABC and cst-II. Further evidence of C. coli and C. jejuni interspecies genomic exchange was observed in identical multilocus sequence typing, shared sequence type (ST) 7818 clonal complex 828, and identical species-indicator genes mapA, ceuE, and hipO. There was a significant increase in novel STs from 2018 to 2019 (2 in 2018 and 21 in 2019, p<0.002), illustrating variable Campylobacter genomes within food animal production. Introgression between C. coli and C. jejuni may aid pathogen adaption, lead to higher AMR and increase Campylobacter persistence in food processing. Future studies should further characterize interspecies gene transfer and evolutionary trends in food animal production to track evolving risks to public health.
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Affiliation(s)
- Dawn M Hull
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Erin Harrell
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Arnoud H M van Vliet
- School of Veterinary Medicine, University of Surrey, Guildford, Surrey, United Kingdom
| | - Maria Correa
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Siddhartha Thakur
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States of America
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22
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Mousavi S, Bereswill S, Heimesaat MM. Murine Models for the Investigation of Colonization Resistance and Innate Immune Responses in Campylobacter Jejuni Infections. Curr Top Microbiol Immunol 2021; 431:233-263. [PMID: 33620654 DOI: 10.1007/978-3-030-65481-8_9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Human infections with the food-borne pathogen Campylobacter jejuni are progressively increasing worldwide and constitute a significant socioeconomic burden to mankind. Intestinal campylobacteriosis in humans is characterized by bloody diarrhea, fever, abdominal pain, and severe malaise. Some individuals develop chronic post-infectious sequelae including neurological and autoimmune diseases such as reactive arthritis and Guillain-Barré syndrome. Studies unraveling the molecular mechanisms underlying campylobacteriosis and post-infectious sequelae have been hampered by the scarcity of appropriate experimental in vivo models. Particularly, conventional laboratory mice are protected from C. jejuni infection due to the physiological colonization resistance exerted by the murine gut microbiota composition. Additionally, as compared to humans, mice are up to 10,000 times more resistant to C. jejuni lipooligosaccharide (LOS) constituting a major pathogenicity factor responsible for the immunopathological host responses during campylobacteriosis. In this chapter, we summarize the recent progress that has been made in overcoming these fundamental obstacles in Campylobacter research in mice. Modification of the murine host-specific gut microbiota composition and sensitization of the mice to C. jejuni LOS by deletion of genes encoding interleukin-10 or a single IL-1 receptor-related molecule as well as by dietary zinc depletion have yielded reliable murine infection models resembling key features of human campylobacteriosis. These substantial improvements pave the way for a better understanding of the molecular mechanisms underlying pathogen-host interactions. The ongoing validation and standardization of these novel murine infection models will provide the basis for the development of innovative treatment and prevention strategies to combat human campylobacteriosis and collateral damages of C. jejuni infections.
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Affiliation(s)
- Soraya Mousavi
- Institute of Microbiology, Infectious Diseases and Immunology, Gastrointestinal Microbiology Research Group, Charité-University Medicine Berlin, Corporate Member of Free University Berlin, Humboldt-University of Berlin, Berlin Institute of Health, Berlin, Germany
| | - Stefan Bereswill
- Institute of Microbiology, Infectious Diseases and Immunology, Gastrointestinal Microbiology Research Group, Charité-University Medicine Berlin, Corporate Member of Free University Berlin, Humboldt-University of Berlin, Berlin Institute of Health, Berlin, Germany
| | - Markus M Heimesaat
- Institute of Microbiology, Infectious Diseases and Immunology, Gastrointestinal Microbiology Research Group, Charité-University Medicine Berlin, Corporate Member of Free University Berlin, Humboldt-University of Berlin, Berlin Institute of Health, Berlin, Germany.
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23
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Kreling V, Falcone FH, Kehrenberg C, Hensel A. Campylobacter sp.: Pathogenicity factors and prevention methods-new molecular targets for innovative antivirulence drugs? Appl Microbiol Biotechnol 2020; 104:10409-10436. [PMID: 33185702 PMCID: PMC7662028 DOI: 10.1007/s00253-020-10974-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 08/24/2020] [Accepted: 10/21/2020] [Indexed: 02/08/2023]
Abstract
Infections caused by bacterial species from the genus Campylobacter are one of the four main causes of strong diarrheal enteritis worldwide. Campylobacteriosis, a typical food-borne disease, can range from mild symptoms to fatal illness. About 550 million people worldwide suffer from campylobacteriosis and lethality is about 33 million p.a. This review summarizes the state of the current knowledge on Campylobacter with focus on its specific virulence factors. Using this knowledge, multifactorial prevention strategies can be implemented to reduce the prevalence of Campylobacter in the food chain. In particular, antiadhesive strategies with specific adhesion inhibitors seem to be a promising concept for reducing Campylobacter bacterial load in poultry production. Antivirulence compounds against bacterial adhesion to and/or invasion into the host cells can open new fields for innovative antibacterial agents. Influencing chemotaxis, biofilm formation, quorum sensing, secretion systems, or toxins by specific inhibitors can help to reduce virulence of the bacterium. In addition, the unusual glycosylation of the bacterium, being a prerequisite for effective phase variation and adaption to different hosts, is yet an unexplored target for combating Campylobacter sp. Plant extracts are widely used remedies in developing countries to combat infections with Campylobacter. Therefore, the present review summarizes the use of natural products against the bacterium in an attempt to stimulate innovative research concepts on the manifold still open questions behind Campylobacter towards improved treatment and sanitation of animal vectors, treatment of infected patients, and new strategies for prevention. KEY POINTS: • Campylobacter sp. is a main cause of strong enteritis worldwide. • Main virulence factors: cytolethal distending toxin, adhesion proteins, invasion machinery. • Strong need for development of antivirulence compounds.
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Affiliation(s)
- Vanessa Kreling
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, 48149, Münster, Germany
| | - Franco H Falcone
- Institute of Parasitology, University of Gießen, Schubertstraße 81, 35392, Gießen, Germany
| | - Corinna Kehrenberg
- Institute of Veterinary Food Science, University of Gießen, Frankfurterstraße 81, 35392, Gießen, Germany
| | - Andreas Hensel
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, 48149, Münster, Germany.
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Li T, Wolfert MA, Wei N, Huizinga R, Jacobs BC, Boons GJ. Chemoenzymatic Synthesis of Campylobacter jejuni Lipo-oligosaccharide Core Domains to Examine Guillain–Barré Syndrome Serum Antibody Specificities. J Am Chem Soc 2020; 142:19611-19621. [DOI: 10.1021/jacs.0c08583] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Tiehai Li
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602-4712, United States
| | - Margreet A. Wolfert
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602-4712, United States
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, 3584 Utrecht, The Netherlands
| | - Na Wei
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602-4712, United States
| | | | | | - Geert-Jan Boons
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602-4712, United States
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, 3584 Utrecht, The Netherlands
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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25
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Wu Z, Yaeger MJ, Sahin O, Xu C, Beyi AF, Plummer PJ, Meral Ocal M, Zhang Q. A Homologous Bacterin Protects Sheep against Abortion Induced by a Hypervirulent Campylobacter jejuni Clone. Vaccines (Basel) 2020; 8:vaccines8040662. [PMID: 33172100 PMCID: PMC7711547 DOI: 10.3390/vaccines8040662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/02/2020] [Accepted: 11/04/2020] [Indexed: 11/16/2022] Open
Abstract
Campylobacter jejuni clone SA has emerged as the predominant cause of ovine abortion outbreaks in the United States (US). Despite the fact that commercial Campylobacter vaccines are available, their efficacy in protecting abortion induced by C. jejuni clone SA is uncertain, and a protective vaccine is needed to control the disease. In this study, an experimental homologous bacterin (made of a clone SA isolate) and two commercial Campylobacter vaccines were evaluated for their protection against C. jejuni clone SA-induced sheep abortion. All vaccines induced high levels of antibodies against C. jejuni clone SA in pregnant ewes, but only the experimental homologous bacterin produced significant protection (80%). Immunoblotting showed that the experimental vaccine elicited more specific antibodies against C. jejuni clone SA. These findings strongly suggest the necessity of developing a homologous vaccine for the control C. jejuni clone SA induced abortion on sheep farms.
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Affiliation(s)
- Zuowei Wu
- Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA 50010, USA; (Z.W.); (C.X.); (A.F.B.); (P.J.P.); (M.M.O.)
| | | | - Orhan Sahin
- Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA 50010, USA;
| | - Changyun Xu
- Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA 50010, USA; (Z.W.); (C.X.); (A.F.B.); (P.J.P.); (M.M.O.)
| | - Ashenafi F. Beyi
- Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA 50010, USA; (Z.W.); (C.X.); (A.F.B.); (P.J.P.); (M.M.O.)
| | - Paul J. Plummer
- Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA 50010, USA; (Z.W.); (C.X.); (A.F.B.); (P.J.P.); (M.M.O.)
- Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA 50010, USA;
- National Institute of Antimicrobial Resistance Research and Education, Ames, IA 50010, USA
| | - Melda Meral Ocal
- Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA 50010, USA; (Z.W.); (C.X.); (A.F.B.); (P.J.P.); (M.M.O.)
| | - Qijing Zhang
- Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA 50010, USA; (Z.W.); (C.X.); (A.F.B.); (P.J.P.); (M.M.O.)
- Correspondence:
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26
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Pascoe B, Schiaffino F, Murray S, Méric G, Bayliss SC, Hitchings MD, Mourkas E, Calland JK, Burga R, Yori PP, Jolley KA, Cooper KK, Parker CT, Olortegui MP, Kosek MN, Sheppard SK. Genomic epidemiology of Campylobacter jejuni associated with asymptomatic pediatric infection in the Peruvian Amazon. PLoS Negl Trop Dis 2020; 14:e0008533. [PMID: 32776937 PMCID: PMC7440661 DOI: 10.1371/journal.pntd.0008533] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 08/20/2020] [Accepted: 06/29/2020] [Indexed: 12/20/2022] Open
Abstract
Campylobacter is the leading bacterial cause of gastroenteritis worldwide and its incidence is especially high in low- and middle-income countries (LMIC). Disease epidemiology in LMICs is different compared to high income countries like the USA or in Europe. Children in LMICs commonly have repeated and chronic infections even in the absence of symptoms, which can lead to deficits in early childhood development. In this study, we sequenced and characterized C. jejuni (n = 62) from a longitudinal cohort study of children under the age of 5 with and without diarrheal symptoms, and contextualized them within a global C. jejuni genome collection. Epidemiological differences in disease presentation were reflected in the genomes, specifically by the absence of some of the most common global disease-causing lineages. As in many other countries, poultry-associated strains were likely a major source of human infection but almost half of local disease cases (15 of 31) were attributable to genotypes that are rare outside of Peru. Asymptomatic infection was not limited to a single (or few) human adapted lineages but resulted from phylogenetically divergent strains suggesting an important role for host factors in the cryptic epidemiology of campylobacteriosis in LMICs. Campylobacter is the leading bacterial cause of gastroenteritis worldwide and despite high incidence in low- and middle-income countries (LMICs), where infection can be fatal, culture based isolation is rare and the genotypes responsible for disease have not broadly been identified. The epidemiology of disease is different to that in high income countries, where sporadic infection associated with contaminated food consumption typically leads to acute gastroenteritis. In some LMICs infection is endemic among children and common asymptomatic carriage is associated with malnutrition, attenuated growth in early childhood, and poor cognitive and physical development. Here, we sequenced the genomes of isolates sampled from children in the Peruvian Amazon to investigate genotypes associated with varying disease severity and the source of infection. Among the common globally circulating genotypes and local genotypes rarely seen before, no single lineage was responsible for symptomatic or asymptomatic infection–suggesting an important role for host factors. However, consistent with other countries, poultry-associated strains were a likely major source of infection. This genomic surveillance approach, that integrates microbial ecology with population based studies in humans and animals, has considerable potential for describing cryptic epidemiology in LMICs and will inform work to improve infant health worldwide.
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Affiliation(s)
- Ben Pascoe
- The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
- Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
- * E-mail: (BP); (MNK)
| | - Francesca Schiaffino
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
- Faculty of Veterinary Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Susan Murray
- Swansea University Medical School, Swansea University, Singleton Park, Swansea, United Kingdom
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratories, Uppsala University, Uppsala, Sweden
| | - Guillaume Méric
- The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
| | - Sion C. Bayliss
- The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
| | - Matthew D. Hitchings
- Swansea University Medical School, Swansea University, Singleton Park, Swansea, United Kingdom
| | - Evangelos Mourkas
- The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
| | - Jessica K. Calland
- The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
| | - Rosa Burga
- Bacteriology Department, Naval Medical Research Unit-6 (NAMRU-6), Iquitos, Peru
| | - Pablo Peñataro Yori
- The Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, United States of America
- Asociacion Benefica Prisma, Loreto, Peru
| | - Keith A. Jolley
- Department of Zoology, University of Oxford, South Parks Road, Oxford, United Kingdom
| | - Kerry K. Cooper
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona, United States of America
| | - Craig T. Parker
- Produce Safety and Microbiology Research Unit, Agricultural Research Service, US Department of Agriculture, Albany, California, United States of America
| | | | - Margaret N. Kosek
- The Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, United States of America
- Asociacion Benefica Prisma, Loreto, Peru
- * E-mail: (BP); (MNK)
| | - Samuel K. Sheppard
- The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
- Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
- Department of Zoology, University of Oxford, South Parks Road, Oxford, United Kingdom
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Hameed A, Woodacre A, Machado LR, Marsden GL. An Updated Classification System and Review of the Lipooligosaccharide Biosynthesis Gene Locus in Campylobacter jejuni. Front Microbiol 2020; 11:677. [PMID: 32508756 PMCID: PMC7248181 DOI: 10.3389/fmicb.2020.00677] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 03/24/2020] [Indexed: 01/21/2023] Open
Abstract
Lipooligosaccharide (LOS) is an integral component of the Campylobacter cell membrane with a structure of core oligosaccharides forming inner and outer core regions and a lipid A moiety. The gene content of the LOS core biosynthesis cluster exhibits extensive sequence variation, which leads to the production of variable cell surface LOS structures in Campylobacter. Some LOS outer core molecules in Campylobacter jejuni are molecular mimics of host structures (such as neuronal gangliosides) and are thought to trigger neuronal disorders (particularly Guillain–Barré syndrome and Miller Fisher syndrome) in humans. The extensive genetic variation in the LOS biosynthesis gene cluster, a majority of which occurs in the LOS outer core biosynthesis gene content present between lgtF and waaV, has led to the development of a classification system with 23 classes (A–W) and four groups (1–4) for the C. jejuni LOS region. This review presents an updated and simplified classification system for LOS typing alongside an overview of the frequency of C. jejuni LOS biosynthesis genotypes and structures in various C. jejuni populations.
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Affiliation(s)
- Amber Hameed
- Division of Life Sciences, University of Northampton, Northampton, United Kingdom
| | - Alexandra Woodacre
- Division of Life Sciences, University of Northampton, Northampton, United Kingdom
| | - Lee R Machado
- Division of Life Sciences, University of Northampton, Northampton, United Kingdom
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28
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Serichantalergs O, Wassanarungroj P, Khemnu N, Poly F, Guerry P, Bodhidatta L, Crawford J, Swierczewski B. Distribution of genes related to Type 6 secretion system and lipooligosaccharide that induced ganglioside mimicry among Campylobacter jejuni isolated from human diarrhea in Thailand. Gut Pathog 2020; 12:18. [PMID: 32308743 PMCID: PMC7146907 DOI: 10.1186/s13099-020-00357-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 04/04/2020] [Indexed: 11/10/2022] Open
Abstract
Background Campylobacter jejuni (C. jejuni) is one of the most common bacteria responsible for human gastroenteritis worldwide. The mode of human transmission is foodborne infections due to consumption of contaminated food, especially poultry. Type 6 secretion systems (T6SS) were described recently as Campylobacter virulence mechanisms. Furthermore, infection sequelae associated with neurological disorders like Guillain-Barré (GBS) and Miller Fisher (MF) syndromes can become serious health problems in some patients after Campylobacter gastroenteritis. Our objective was to determine the distribution of these virulence genes among C. jejuni isolated from stool of human diarrhea. Methods A total of 524 C. jejuni strains from travelers and pediatric cases of acute diarrhea in Thailand were selected for this study. All isolates belonged to one of 20 known capsule types and all were assayed by PCR for T6SS, a hemolysin co-regulated protein (hcp) gene, and GBS-associated genes (cgtA, cgtB, cstII HS19 and cstII HS2 ) which are involved in sialic acid production in the lipooligosaccharide (LOS) cores of C. jejuni. The distribution of these genes are summarized and discussed. Results Of all isolates with these 20 capsule types identified, 328 (62.6%) were positive for hcp, ranging from 29.2 to 100% among 10 capsule types. The GBS-associated LOS genes were detected among 14 capsule type isolates with 24.4% and 23.3% of C. jejuni isolates possessed either cstII HS19 or all three genes (cgtA, cgtB and cstII HS19 ), which were classified as LOS classes A and B whereas 9.2% of C. jejuni isolates possessing cstII HS2 were classified as LOS class C. The C. jejuni isolates of LOS A, B, and C together accounted for 56.9% of the isolates among 14 different capsule types while 31.1% of all C. jejuni isolates did not possess any GBS-associated genes. No significant difference was detected from C. jejuni isolates possessing GBS-associated LOS genes among travelers and children, but changes between those with hcp were significant (p < 0.05). Conclusions Our results suggested a high diversity of hcp and GBS-associated LOS genes among capsule types of C. jejuni isolated from Thailand.
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Affiliation(s)
- Oralak Serichantalergs
- 1Department of Bacterial and Parasitic Diseases, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
| | - Patcharawalai Wassanarungroj
- 1Department of Bacterial and Parasitic Diseases, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
| | - Nuanpan Khemnu
- 1Department of Bacterial and Parasitic Diseases, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
| | - Frédéric Poly
- 2Enteric Diseases Department, Naval Medical Research Center, Silver Spring, MD USA
| | - Patricia Guerry
- 2Enteric Diseases Department, Naval Medical Research Center, Silver Spring, MD USA
| | - Ladaporn Bodhidatta
- 1Department of Bacterial and Parasitic Diseases, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
| | - John Crawford
- 3US Army Medical Research Institute of Chemical Defense, Aberdeen, MD USA
| | - Brett Swierczewski
- 4Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD USA
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29
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Virulence Traits of Inpatient Campylobacter jejuni Isolates, and a Transcriptomic Approach to Identify Potential Genes Maintaining Intracellular Survival. Microorganisms 2020; 8:microorganisms8040531. [PMID: 32272707 PMCID: PMC7232156 DOI: 10.3390/microorganisms8040531] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/01/2020] [Accepted: 04/01/2020] [Indexed: 12/12/2022] Open
Abstract
There are still major gaps in our understanding of the bacterial factors that influence the outcomes of human Campylobacter jejuni infection. The aim of this study was to compare the virulence-associated features of 192 human C. jejuni strains isolated from hospitalized patients with diarrhoea (150/192, 78.1%), bloody diarrhoea (23/192, 11.9%), gastroenteritis (3/192, 1.6%), ulcerative colitis (3/192, 1.5%), and stomach ache (2/192, 1.0%). Traits were analysed with genotypic and phenotypic methods, including PCR and extracellular matrix protein (ECMP) binding, adhesion, and invasion capacities. Results were studied alongside patient symptoms, but no distinct links with them could be determined. Since the capacity of C. jejuni to invade host epithelial cells is one of its most enigmatic attributes, a high throughput transcriptomic analysis was performed in the third hour of internalization with a C. jejuni strain originally isolated from bloody diarrhoea. Characteristic groups of genes were significantly upregulated, outlining a survival strategy of internalized C. jejuni comprising genes related (1) to oxidative stress; (2) to a protective sheath formed by the capsule, LOS, N-, and O- glycosylation systems; (3) to dynamic metabolic activity supported by different translocases and the membrane-integrated component of the flagellar apparatus; and (4) to hitherto unknown genes.
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30
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Novel Clinical Campylobacter jejuni Infection Models Based on Sensitization of Mice to Lipooligosaccharide, a Major Bacterial Factor Triggering Innate Immune Responses in Human Campylobacteriosis. Microorganisms 2020; 8:microorganisms8040482. [PMID: 32231139 PMCID: PMC7232424 DOI: 10.3390/microorganisms8040482] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 12/12/2022] Open
Abstract
Human Campylobacter jejuni infections inducing campylobacteriosis including post-infectious sequelae such as Guillain-Barré syndrome and reactive arthritis are rising worldwide and progress into a global burden of high socioeconomic impact. Intestinal immunopathology underlying campylobacteriosis is a classical response of the innate immune system characterized by the accumulation of neutrophils and macrophages which cause tissue destruction, barrier defects and malabsorption leading to bloody diarrhea. Clinical studies revealed that enteritis and post-infectious morbidities of human C. jejuni infections are strongly dependent on the structure of pathogenic lipooligosaccharides (LOS) triggering the innate immune system via Toll-like-receptor (TLR)-4 signaling. Compared to humans, mice display an approximately 10,000 times weaker TLR-4 response and a pronounced colonization resistance (CR) against C. jejuni maintained by the murine gut microbiota. In consequence, investigations of campylobacteriosis have been hampered by the lack of experimental animal models. We here summarize recent progress made in the development of murine C. jejuni infection models that are based on the abolishment of CR by modulating the murine gut microbiota and by sensitization of mice to LOS. These advances support the major role of LOS driven innate immunity in pathogenesis of campylobacteriosis including post-infectious autoimmune diseases and promote the preclinical evaluation of novel pharmaceutical strategies for prophylaxis and treatment.
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31
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Huddleston JP, Anderson TK, Spencer KD, Thoden JB, Raushel FM, Holden HM. Structural Analysis of Cj1427, an Essential NAD-Dependent Dehydrogenase for the Biosynthesis of the Heptose Residues in the Capsular Polysaccharides of Campylobacter jejuni. Biochemistry 2020; 59:1314-1327. [PMID: 32168450 DOI: 10.1021/acs.biochem.0c00096] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Many strains of Campylobacter jejuni display modified heptose residues in their capsular polysaccharides (CPS). The precursor heptose was previously shown to be GDP-d-glycero-α-d-manno-heptose, from which a variety of modifications of the sugar moiety have been observed. These modifications include the generation of 6-deoxy derivatives and alterations of the stereochemistry at C3-C6. Previous work has focused on the enzymes responsible for the generation of the 6-deoxy derivatives and those involved in altering the stereochemistry at C3 and C5. However, the generation of the 6-hydroxyl heptose residues remains uncertain due to the lack of a specific enzyme to catalyze the initial oxidation at C4 of GDP-d-glycero-α-d-manno-heptose. Here we reexamine the previously reported role of Cj1427, a dehydrogenase found in C. jejuni NTCC 11168 (HS:2). We show that Cj1427 is co-purified with bound NADH, thus hindering catalysis of oxidation reactions. However, addition of a co-substrate, α-ketoglutarate, converts the bound NADH to NAD+. In this form, Cj1427 catalyzes the oxidation of l-2-hydroxyglutarate back to α-ketoglutarate. The crystal structure of Cj1427 with bound GDP-d-glycero-α-d-manno-heptose shows that the NAD(H) cofactor is ideally positioned to catalyze the oxidation at C4 of the sugar substrate. Additionally, the overall fold of the Cj1427 subunit places it into the well-defined short-chain dehydrogenase/reductase superfamily. The observed quaternary structure of the tetrameric enzyme, however, is highly unusual for members of this superfamily.
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Affiliation(s)
- Jamison P Huddleston
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Thomas K Anderson
- Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Keelan D Spencer
- Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - James B Thoden
- Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Frank M Raushel
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States.,Department of Biochemistry & Biophysics, Texas A&M University, College Station, Texas 77843, United States
| | - Hazel M Holden
- Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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32
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Yang JM, Kim GE, Kim KR, Kim CS. Expression and purification of the full-length N-acetylgalactosaminyltransferase and galactosyltransferase from Campylobacter jejuni in Escherichia coli. Enzyme Microb Technol 2020; 135:109489. [PMID: 32146932 DOI: 10.1016/j.enzmictec.2019.109489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/07/2019] [Accepted: 12/09/2019] [Indexed: 02/06/2023]
Abstract
The successful enzymatic synthesis of various ganglioside-related oligosaccharides requires many available glycan-processing enzymes. However, the number of available glycan-processing enzymes remains limited. In this study, the full-length CgtA43456 (β-(1→4)-N-acetylgalactosaminyltransferase) and CgtB11168 (β-(1→3)-galactosyltransferase) were successfully produced from Escherichia coli through the optimization of E. coli-preferable codon usage, selection of E. coli strain, and use of the molecular chaperone GroEL-GroES (GroEL/ES). The CgtA43456 enzyme was produced as a soluble form in E. coli C41(DE3) co-expressed with codon-optimized CgtA43456 and GroEL/ES. However, soluble CgtB11168 was well expressed in E. coli C41(DE3) with only the codon-optimized CgtB11168. Rather, when co-expressed with GroEL/ES, total production of CgtB11168 was reduced. Using immobilized-metal affinity chromatography, the CgtA43456 and CgtB11168 proteins were obtained with approximately 75-78 % purity. The purified CgtA43456 showed a specific activity of 21 mU/mg using UDP-N-acetylgalactosamine and GM3 trisaccharide as donor and acceptor, respectively. The purified CgtB11168 catalyzed the transfer of galactose from UDP-Gal to GM2 tetrasaccharide with a specific activity of 16 mU/mg. We propose that they could be used as catalysts for enzymatic synthesis of GM1 ganglioside-related oligosaccharides.
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Affiliation(s)
- Jong Min Yang
- Graduate School of Biochemistry, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Gi Eob Kim
- School of Biotechnology, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Kyeong Rok Kim
- Graduate School of Biochemistry, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Chang Sup Kim
- Graduate School of Biochemistry, Yeungnam University, Gyeongsan, 38541, Republic of Korea; School of Biotechnology, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
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Guirado P, Paytubi S, Miró E, Iglesias-Torrens Y, Navarro F, Cerdà-Cuéllar M, Stephan-Otto Attolini C, Balsalobre C, Madrid C. Differential Distribution of the wlaN and cgtB Genes, Associated with Guillain-Barré Syndrome, in Campylobacter jejuni Isolates from Humans, Broiler Chickens, and Wild Birds. Microorganisms 2020; 8:E325. [PMID: 32110976 PMCID: PMC7142995 DOI: 10.3390/microorganisms8030325] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/21/2020] [Accepted: 02/24/2020] [Indexed: 11/17/2022] Open
Abstract
Campylobacter jejuni causes campylobacteriosis, a bacterial gastroenteritis with high incidence worldwide. Moreover, C. jejuni infection can trigger the polyneuropathic disorder denominated Guillain-Barré syndrome (GBS). The C. jejuni strains that can elicit GBS carry either wlaN or cgtB, coding both genes for a β-1,3-galactosyltransferase enzyme that is required for the production of sialylated lipooligosaccharide (LOSSIAL). We described a differential prevalence of the genes wlaN and cgtB in C. jejuni isolates from three different ecological niches: humans, broiler chickens, and wild birds. The distribution of both genes, which is similar between broiler chicken and human isolates and distinct when compared to the wild bird isolates, suggests a host-dependent distribution. Moreover, the prevalence of the wlaN and cgtB genes seems to be restricted to some clonal complexes. Gene sequencing identified the presence of new variants of the G- homopolymeric tract within the wlaN gene. Furthermore, we detected two variants of a G rich region within the cgtB gene, suggesting that, similarly to wlaN, the G-tract in the cgtB gene mediates the phase variation control of cgtB expression. Caco-2 cell invasion assays indicate that there is no evident correlation between the production of LOSSIAL and the ability to invade eukaryotic cells.
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Affiliation(s)
- Pedro Guirado
- Departament de Genètica, Microbiologia i Estadística, Facultat de Biología, Universitat de Barcelona. Avda. Diagonal 643, 08028 Barcelona, Spain; (P.G.); (S.P.); (C.B.)
| | - Sonia Paytubi
- Departament de Genètica, Microbiologia i Estadística, Facultat de Biología, Universitat de Barcelona. Avda. Diagonal 643, 08028 Barcelona, Spain; (P.G.); (S.P.); (C.B.)
| | - Elisenda Miró
- Hospital de la Santa Creu i Sant Pau and Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau), Sant Quintí 89, 08041 Barcelona, Spain; (E.M.); (Y.I.-T.)
| | - Yaidelis Iglesias-Torrens
- Hospital de la Santa Creu i Sant Pau and Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau), Sant Quintí 89, 08041 Barcelona, Spain; (E.M.); (Y.I.-T.)
- Departament de Genètica i Microbiologia. Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès (Barcelona), Spain
| | - Ferran Navarro
- Hospital de la Santa Creu i Sant Pau and Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau), Sant Quintí 89, 08041 Barcelona, Spain; (E.M.); (Y.I.-T.)
- Departament de Genètica i Microbiologia. Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès (Barcelona), Spain
| | - Marta Cerdà-Cuéllar
- IRTA, Centre de Recerca en Sanitat Animal (CReSA-IRTA-UAB). Campus de la Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain;
| | - Camille Stephan-Otto Attolini
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028 Barcelona, Spain;
| | - Carlos Balsalobre
- Departament de Genètica, Microbiologia i Estadística, Facultat de Biología, Universitat de Barcelona. Avda. Diagonal 643, 08028 Barcelona, Spain; (P.G.); (S.P.); (C.B.)
| | - Cristina Madrid
- Departament de Genètica, Microbiologia i Estadística, Facultat de Biología, Universitat de Barcelona. Avda. Diagonal 643, 08028 Barcelona, Spain; (P.G.); (S.P.); (C.B.)
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Josenhans C, Müthing J, Elling L, Bartfeld S, Schmidt H. How bacterial pathogens of the gastrointestinal tract use the mucosal glyco-code to harness mucus and microbiota: New ways to study an ancient bag of tricks. Int J Med Microbiol 2020; 310:151392. [DOI: 10.1016/j.ijmm.2020.151392] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/28/2019] [Accepted: 12/06/2019] [Indexed: 12/13/2022] Open
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Hao Y, Wang W, Jacobs BC, Qiao B, Chen M, Liu D, Feng X, Wang Y. Antecedent infections in Guillain-Barré syndrome: a single-center, prospective study. Ann Clin Transl Neurol 2019; 6:2510-2517. [PMID: 31714025 PMCID: PMC6917331 DOI: 10.1002/acn3.50946] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 10/24/2019] [Accepted: 10/25/2019] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE To investigate the spectrum of antecedent infections in Chinese patients with Guillain-Barré syndrome (GBS) and analyze the infections-related clinical phenotypes locally. METHODS A prospective case-control study of 150 patients diagnosed with GBS and age- and sex-matched neurological and healthy controls was performed to investigate recent infections of 14 pathogens serologically and collect the clinical data during a follow-up of 12 months. RESULTS In total, 53% of patients with GBS had a positive serology for recent infection, including Campylobacter jejuni (27%), influenza A (17%) and B (16%), hepatitis A virus (5%), dengue virus (3%), cytomegalovirus (3%), Epstein-Barr virus (3%), Mycoplasma pneumoniae (2%), herpes simplex virus (2%), varicella-zoster virus (1%), and rubella virus (1%). Serology for infections of hepatitis E virus, Haemophilus influenzae, and Zika virus was negative. There was a higher frequency of C. jejuni, influenza A, influenza B, and hepatitis A virus infections in GBS patients than both the neurological and healthy controls. C. jejuni infection was more frequent in younger GBS patients and was associated with antibodies against GM1, GalNAc-GD1a, and GM1:galactocerebroside complex. Influenza B infection was associated with a pure motor form of GBS. INTERPRETATION C. jejuni, influenza A, influenza B, and hepatitis A virus serve as the most common cause of antecedent infections in GBS locally. Influenza B-related GBS may represent a pure motor phenotype. Differences in the infectious spectrum worldwide may contribute to the geographical clinical heterogeneity of GBS.
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Affiliation(s)
- Yanlei Hao
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining, Shandong Province, China
| | - Weifang Wang
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining, Shandong Province, China
| | - Bart C Jacobs
- Department of Neurology and Immunology, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Baojun Qiao
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining, Shandong Province, China
| | - Mengshi Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan Province, China
| | - Daiqiang Liu
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining, Shandong Province, China
| | - Xungang Feng
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining, Shandong Province, China
| | - Yuzhong Wang
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining, Shandong Province, China.,Central Laboratory, Affiliated Hospital of Jining Medical University, Jining, Shandong Province, China
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Manfreda G, De Cesare A. Campylobacter and Salmonella in poultry and poultry products: hows and whys of molecular typing. WORLD POULTRY SCI J 2019. [DOI: 10.1079/wps200448] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- G. Manfreda
- Department of Food Science, Alma Mater Studiorum – University of Bologna, Via S. Giacomo 9, 40126 Bologna, Italy
| | - A. De Cesare
- Department of Food Science, Alma Mater Studiorum – University of Bologna, Via S. Giacomo 9, 40126 Bologna, Italy
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Identifying the culprits in neurological autoimmune diseases. J Transl Autoimmun 2019; 2:100015. [PMID: 32743503 PMCID: PMC7388404 DOI: 10.1016/j.jtauto.2019.100015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/27/2019] [Accepted: 09/03/2019] [Indexed: 12/16/2022] Open
Abstract
The target organ of neurological autoimmune diseases (NADs) is the central or peripheral nervous system. Multiple sclerosis (MS) is the most common NAD, whereas Guillain-Barré syndrome (GBS), myasthenia gravis (MG), and neuromyelitis optica (NMO) are less common NADs, but the incidence of these diseases has increased exponentially in the last few years. The identification of a specific culprit in NADs is challenging since a myriad of triggering factors interplay with each other to cause an autoimmune response. Among the factors that have been associated with NADs are genetic susceptibility, epigenetic mechanisms, and environmental factors such as infection, microbiota, vitamins, etc. This review focuses on the most studied culprits as well as the mechanisms used by these to trigger NADs. Neurological autoimmune diseases are caused by a complex interaction between genes, environmental factors, and epigenetic deregulation. Infectious agents can cause an autoimmune reaction to myelin epitopes through molecular mimicry and/or bystander activation. Gut microbiota dysbiosis contributes to neurological autoimmune diseases. Smoking increases the risk of NADs through inflammatory signaling pathways, oxidative stress, and Th17 differentiation. Deficiency in vitamin D favors NAD development through direct damage to the central and peripheral nervous system.
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Brooks PT, Bell JA, Bejcek CE, Malik A, Mansfield LS. An antibiotic depleted microbiome drives severe Campylobacter jejuni-mediated Type 1/17 colitis, Type 2 autoimmunity and neurologic sequelae in a mouse model. J Neuroimmunol 2019; 337:577048. [PMID: 31678855 DOI: 10.1016/j.jneuroim.2019.577048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 09/01/2019] [Accepted: 09/02/2019] [Indexed: 10/26/2022]
Abstract
The peripheral neuropathy Guillain-Barré Syndrome can follow Campylobacter jejuni infection when outer core lipooligosaccharides induce production of neurotoxic anti-ganglioside antibodies. We hypothesized that gut microbiota depletion with an antibiotic would increase C. jejuni colonization, severity of gastroenteritis, and GBS. Microbiota depletion increased C. jejuni colonization, invasion, and colitis with Type 1/17 T cells in gut lamina propria. It also stimulated Type 1/17 anti-C. jejuni and -antiganglioside-antibodies, Type 2 anti-C. jejuni and -antiganglioside antibodies, and neurologic phenotypes. Results indicate that both C. jejuni strain and gut microbiota affect development of inflammation and GBS and suggest that probiotics following C. jejuni infection may ameliorate inflammation and autoimmune disease.
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Affiliation(s)
- Phillip T Brooks
- Comparative Enteric Diseases Laboratory, Michigan State University, East Lansing, MI, USA; Comparative Medicine Integrative Biology Graduate Program, Michigan State University, East Lansing, MI, USA; College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA; Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, USA
| | - Julia A Bell
- Comparative Enteric Diseases Laboratory, Michigan State University, East Lansing, MI, USA; Departments of Microbiology and Molecular Genetics and Large Animal Clinical Sciences, Michigan State University, East Lansing, MI, USA; College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Christopher E Bejcek
- Comparative Enteric Diseases Laboratory, Michigan State University, East Lansing, MI, USA; Departments of Microbiology and Molecular Genetics and Large Animal Clinical Sciences, Michigan State University, East Lansing, MI, USA
| | - Ankit Malik
- Comparative Enteric Diseases Laboratory, Michigan State University, East Lansing, MI, USA; Departments of Microbiology and Molecular Genetics and Large Animal Clinical Sciences, Michigan State University, East Lansing, MI, USA
| | - Linda S Mansfield
- Comparative Enteric Diseases Laboratory, Michigan State University, East Lansing, MI, USA; Departments of Microbiology and Molecular Genetics and Large Animal Clinical Sciences, Michigan State University, East Lansing, MI, USA; College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA; Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, USA.
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Huddleston JP, Raushel FM. Biosynthesis of GDP-d- glycero-α-d- manno-heptose for the Capsular Polysaccharide of Campylobacter jejuni. Biochemistry 2019; 58:3893-3902. [PMID: 31449400 DOI: 10.1021/acs.biochem.9b00548] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The capsular polysaccharide (CPS) structure of Campylobacter jejuni contributes to its robust fitness. Many strains contain heptose moieties in their CPS units. The precursor heptose is GDP-d-glycero-α-d-manno-heptose; modifications to the stereochemistry at C3-C6 as well as additions of methyl and phosphoramidate groups lend to the hypervariability of the C. jejuni CPS structures. Synthesis of GDP-d-glycero-α-d-manno-heptose has been described previously, but using enzymes from Aneurinibacillus thermoaerophilus DSM 10155. Here we describe the complete synthesis of GDP-d-glycero-α-d-manno-heptose using enzymes from C. jejuni NTCC 11168: Cj1152 and Cj1423-Cj1425. Our results yield kinetic parameters for these enzymes and outline a successful strategy for milligram-gram scale synthesis of GDP-d-glycero-α-d-manno-heptose. This achievement is critical for the characterization of other carbohydrate tailoring enzymes, which are expected to utilize GDP-d-glycero-α-d-manno-heptose for the biosynthesis of more complex carbohydrates in the CPS of C. jejuni.
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Affiliation(s)
- Jamison P Huddleston
- Department of Chemistry , Texas A&M University , College Station , Texas 77843 , United States
| | - Frank M Raushel
- Department of Chemistry , Texas A&M University , College Station , Texas 77843 , United States
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Burnham PM, Hendrixson DR. Campylobacter jejuni: collective components promoting a successful enteric lifestyle. Nat Rev Microbiol 2019; 16:551-565. [PMID: 29892020 DOI: 10.1038/s41579-018-0037-9] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Campylobacter jejuni is the leading cause of bacterial diarrhoeal disease in many areas of the world. The high incidence of sporadic cases of disease in humans is largely due to its prevalence as a zoonotic agent in animals, both in agriculture and in the wild. Compared with many other enteric bacterial pathogens, C. jejuni has strict growth and nutritional requirements and lacks many virulence and colonization determinants that are typically used by bacterial pathogens to infect hosts. Instead, C. jejuni has a different collection of factors and pathways not typically associated together in enteric pathogens to establish commensalism in many animal hosts and to promote diarrhoeal disease in the human population. In this Review, we discuss the cellular architecture and structure of C. jejuni, intraspecies genotypic variation, the multiple roles of the flagellum, specific nutritional and environmental growth requirements and how these factors contribute to in vivo growth in human and avian hosts, persistent colonization and pathogenesis of diarrhoeal disease.
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Affiliation(s)
- Peter M Burnham
- Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - David R Hendrixson
- Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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Phase-variable bacterial loci: how bacteria gamble to maximise fitness in changing environments. Biochem Soc Trans 2019; 47:1131-1141. [PMID: 31341035 DOI: 10.1042/bst20180633] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/02/2019] [Accepted: 07/05/2019] [Indexed: 12/19/2022]
Abstract
Phase-variation of genes is defined as the rapid and reversible switching of expression - either ON-OFF switching or the expression of multiple allelic variants. Switching of expression can be achieved by a number of different mechanisms. Phase-variable genes typically encode bacterial surface structures, such as adhesins, pili, and lipooligosaccharide, and provide an extra contingency strategy in small-genome pathogens that may lack the plethora of 'sense-and-respond' gene regulation systems found in other organisms. Many bacterial pathogens also encode phase-variable DNA methyltransferases that control the expression of multiple genes in systems called phasevarions (phase-variable regulons). The presence of phase-variable genes allows a population of bacteria to generate a number of phenotypic variants, some of which may be better suited to either colonising certain host niches, surviving a particular environmental condition and/or evading an immune response. The presence of phase-variable genes complicates the determination of an organism's stably expressed antigenic repertoire; many phase-variable genes are highly immunogenic, and so would be ideal vaccine candidates, but unstable expression due to phase-variation may allow vaccine escape. This review will summarise our current understanding of phase-variable genes that switch expression by a variety of mechanisms, and describe their role in disease and pathobiology.
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Effects of antibiotic resistance (AR) and microbiota shifts on Campylobacter jejuni-mediated diseases. Anim Health Res Rev 2019; 18:99-111. [PMID: 29665882 DOI: 10.1017/s1466252318000014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Campylobacter jejuni is an important zoonotic pathogen recently designated a serious antimicrobial resistant (AR) threat. While most patients with C. jejuni experience hemorrhagic colitis, serious autoimmune conditions can follow including inflammatory bowel disease (IBD) and the acute neuropathy Guillain Barré Syndrome (GBS). This review examines inter-relationships among factors mediating C. jejuni diarrheal versus autoimmune disease especially AR C. jejuni and microbiome shifts. Because both susceptible and AR C. jejuni are acquired from animals or their products, we consider their role in harboring strains. Inter-relationships among factors mediating C. jejuni colonization, diarrheal and autoimmune disease include C. jejuni virulence factors and AR, the enteric microbiome, and host responses. Because AR C. jejuni have been suggested to affect the severity of disease, length of infections and propensity to develop GBS, it is important to understand how these interactions occur when strains are under selection by antimicrobials. More work is needed to elucidate host-pathogen interactions of AR C. jejuni compared with susceptible strains and how AR C. jejuni are maintained and evolve in animal reservoirs and the extent of transmission to humans. These knowledge gaps impair the development of effective strategies to prevent the emergence of AR C. jejuni in reservoir species and human populations.
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Genetics behind the Biosynthesis of Nonulosonic Acid-Containing Lipooligosaccharides in Campylobacter coli. J Bacteriol 2019; 201:JB.00759-18. [PMID: 30692173 DOI: 10.1128/jb.00759-18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 01/24/2019] [Indexed: 02/07/2023] Open
Abstract
Campylobacter jejuni and Campylobacter coli are the most common causes of bacterial gastroenteritis in the world. Ganglioside mimicry by C. jejuni lipooligosaccharide (LOS) is the triggering factor of Guillain-Barré syndrome (GBS), an acute polyneuropathy. Sialyltransferases from glycosyltransferase family 42 (GT-42) are essential for the expression of ganglioside mimics in C. jejuni Recently, two novel GT-42 genes, cstIV and cstV, have been identified in C. coli Despite being present in ∼11% of currently available C. coli genomes, the biological role of cstIV and cstV is unknown. In the present investigation, mutation studies with two strains expressing either cstIV or cstV were performed and mass spectrometry was used to investigate differences in the chemical composition of LOS. Attempts were made to identify donor and acceptor molecules using in vitro activity tests with recombinant GT-42 enzymes. Here we show that CstIV and CstV are involved in C. coli LOS biosynthesis. In particular, cstV is associated with LOS sialylation, while cstIV is linked to the addition of a diacetylated nonulosonic acid residue.IMPORTANCE Despite the fact that Campylobacter coli a major foodborne pathogen, its glycobiology has been largely neglected. The genetic makeup of the C. coli lipooligosaccharide biosynthesis locus was largely unknown until recently. C. coli harbors a large set of genes associated with lipooligosaccharide biosynthesis, including genes for several putative glycosyltransferases involved in the synthesis of sialylated lipooligosaccharide in Campylobacter jejuni In the present study, C. coli was found to express lipooligosaccharide structures containing sialic acid and other nonulosonate acids. These findings have a strong impact on our understanding of C. coli ecology, host-pathogen interaction, and pathogenesis.
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Reliability Evaluation of MALDI-TOF MS Associated with SARAMIS Software in Rapid Identification of Thermophilic Campylobacter Isolated from Food. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01447-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abukar T, Buenbrazo N, Janesch B, Kell L, Wakarchuk W. Assay Methods for the Glycosyltransferases Involved in Synthesis of Bacterial Polysaccharides. Methods Mol Biol 2019; 1954:215-235. [PMID: 30864135 DOI: 10.1007/978-1-4939-9154-9_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Glycans play many important roles in bacterial biology and the complexity of the glycan structures requires biochemical assays in place to help characterize the biosynthetic pathways. Our focus has been on the use of enzymes from pathogens which make molecular mimics of host glycans. We have been examining glycosyltransferases that make strategic linkages in biologically active glycans which can be also exploited for potential therapeutic glycoconjugate synthesis. This chapter will provide details on assays for a variety of bacterial glycosyltransferases that we and others have used for the characterization of pathogen glycoconjugate biosynthetic pathways, and for the in vitro synthesis of human-like glycans produced by bacterial pathogens. The methods presented here should enable other assays to be developed for new pathway characterization.
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Affiliation(s)
- Tasnim Abukar
- Department of Chemistry and Biology, Ryerson University, Toronto, ON, Canada
| | - Nakita Buenbrazo
- Department of Chemistry and Biology, Ryerson University, Toronto, ON, Canada
| | - Bettina Janesch
- Department of Chemistry and Biology, Ryerson University, Toronto, ON, Canada
| | - Laura Kell
- Department of Chemistry and Biology, Ryerson University, Toronto, ON, Canada
| | - Warren Wakarchuk
- Department of Chemistry and Biology, Ryerson University, Toronto, ON, Canada.
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Wen L, Gadi MR, Zheng Y, Gibbons C, Kondengaden SM, Zhang J, Wang PG. Chemoenzymatic Synthesis of Unnatural Nucleotide Sugars for Enzymatic Bioorthogonal Labeling. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02081] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Liuqing Wen
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Madhusudhan Reddy Gadi
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Yuan Zheng
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Christopher Gibbons
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | | | - Jiabin Zhang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Peng George Wang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
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Hunter CD, Guo T, Daskhan G, Richards MR, Cairo CW. Synthetic Strategies for Modified Glycosphingolipids and Their Design as Probes. Chem Rev 2018; 118:8188-8241. [DOI: 10.1021/acs.chemrev.8b00070] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Carmanah D. Hunter
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Tianlin Guo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Gour Daskhan
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Michele R. Richards
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Christopher W. Cairo
- Alberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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Rodríguez Y, Rojas M, Pacheco Y, Acosta-Ampudia Y, Ramírez-Santana C, Monsalve DM, Gershwin ME, Anaya JM. Guillain-Barré syndrome, transverse myelitis and infectious diseases. Cell Mol Immunol 2018; 15:547-562. [PMID: 29375121 PMCID: PMC6079071 DOI: 10.1038/cmi.2017.142] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 11/07/2017] [Accepted: 11/07/2017] [Indexed: 02/07/2023] Open
Abstract
Guillain-Barré syndrome (GBS) and transverse myelitis (TM) both represent immunologically mediated polyneuropathies of major clinical importance. Both are thought to have a genetic predisposition, but as of yet no specific genetic risk loci have been clearly defined. Both are considered autoimmune, but again the etiologies remain enigmatic. Both may be induced via molecular mimicry, particularly from infectious agents and vaccines, but clearly host factor and co-founding host responses will modulate disease susceptibility and natural history. GBS is an acute inflammatory immune-mediated polyradiculoneuropathy characterized by tingling, progressive weakness, autonomic dysfunction, and pain. Immune injury specifically takes place at the myelin sheath and related Schwann-cell components in acute inflammatory demyelinating polyneuropathy, whereas in acute motor axonal neuropathy membranes on the nerve axon (the axolemma) are the primary target for immune-related injury. Outbreaks of GBS have been reported, most frequently related to Campylobacter jejuni infection, however, other agents such as Zika Virus have been strongly associated. Patients with GBS related to infections frequently produce antibodies against human peripheral nerve gangliosides. In contrast, TM is an inflammatory disorder characterized by acute or subacute motor, sensory, and autonomic spinal cord dysfunction. There is interruption of ascending and descending neuroanatomical pathways on the transverse plane of the spinal cord similar to GBS. It has been suggested to be triggered by infectious agents and molecular mimicry. In this review, we will focus on the putative role of infectious agents as triggering factors of GBS and TM.
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Affiliation(s)
- Yhojan Rodríguez
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Manuel Rojas
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Yovana Pacheco
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Yeny Acosta-Ampudia
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Carolina Ramírez-Santana
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Diana M Monsalve
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California Davis, School of Medicine, Davis, USA, CA
| | - Juan-Manuel Anaya
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia.
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Elmi M, Azin A, Elnahas A, McCready DR, Cil TD. Concurrent risk-reduction surgery in patients with increased lifetime risk for breast and ovarian cancer: an analysis of the National Surgical Quality Improvement Program (NSQIP) database. Breast Cancer Res Treat 2018; 171:217-223. [PMID: 29761322 DOI: 10.1007/s10549-018-4818-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 05/03/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Patients with genetic susceptibility to breast and ovarian cancer are eligible for risk-reduction surgery. Surgical morbidity of risk-reduction mastectomy (RRM) with concurrent bilateral salpingo-oophorectomy (BSO) is unknown. Outcomes in these patients were compared to patients undergoing RRM without BSO using a large multi-institutional database. METHODS A retrospective cohort analysis was conducted using the American College of Surgeon's National Surgical Quality Improvement Program (NSQIP) 2007-2016 datasets, comparing postoperative morbidity between patients undergoing RRM with patients undergoing RRM with concurrent BSO. Patients with genetic susceptibility to breast/ovarian cancer undergoing risk-reduction surgery were identified. The primary outcome was 30-day postoperative major morbidity. Secondary outcomes included surgical site infections, reoperations, readmissions, length of stay, and venous thromboembolic events. A multivariate analysis was performed to determine predictors of postoperative morbidity and the adjusted effect of concurrent BSO on morbidity. RESULTS Of the 5470 patients undergoing RRM, 149 (2.7%) underwent concurrent BSO. The overall rate of major morbidity and postoperative infections was 4.5% and 4.6%, respectively. There was no significant difference in the rate of postoperative major morbidity (4.5% vs 4.7%, p = 0.91) or any of the secondary outcomes between patients undergoing RRM without BSO vs. those undergoing RRM with concurrent BSO. Multivariable analysis showed Body Mass Index (OR 1.05; p < 0.001) and smoking (OR 1.78; p = 0.003) to be the only predictors associated with major morbidity. Neither immediate breast reconstruction (OR 1.02; p = 0.93) nor concurrent BSO (OR 0.94; p = 0.89) were associated with increased postoperative major morbidity. CONCLUSION This study demonstrated that RRM with concurrent BSO was not associated with significant additional morbidity when compared to RRM without BSO. Therefore, this joint approach may be considered for select patients at risk for both breast and ovarian cancer.
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Affiliation(s)
- Maryam Elmi
- Department of Surgery, University of Toronto, Toronto, ON, Canada.
- Division of General Surgery, University Health Network, Toronto, ON, Canada.
| | - Arash Azin
- Department of Surgery, University of Toronto, Toronto, ON, Canada
- Division of General Surgery, University Health Network, Toronto, ON, Canada
| | - Ahmad Elnahas
- Department of Surgery, Western University, London, ON, Canada
| | - David R McCready
- Department of Surgery, University of Toronto, Toronto, ON, Canada
- Division of General Surgery, University Health Network, Toronto, ON, Canada
| | - Tulin D Cil
- Department of Surgery, University of Toronto, Toronto, ON, Canada
- Division of General Surgery, University Health Network, Toronto, ON, Canada
- Department of Surgery, Women's College Hospital, Toronto, ON, Canada
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Elhadidy M, Arguello H, Álvarez-Ordóñez A, Miller WG, Duarte A, Martiny D, Hallin M, Vandenberg O, Dierick K, Botteldoorn N. Orthogonal typing methods identify genetic diversity among Belgian Campylobacter jejuni strains isolated over a decade from poultry and cases of sporadic human illness. Int J Food Microbiol 2018; 275:66-75. [PMID: 29649751 DOI: 10.1016/j.ijfoodmicro.2018.04.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 02/08/2018] [Accepted: 04/02/2018] [Indexed: 11/30/2022]
Abstract
Campylobacter jejuni is a zoonotic pathogen commonly associated with human gastroenteritis. Retail poultry meat is a major food-related transmission source of C. jejuni to humans. The present study investigated the genetic diversity, clonal relationship, and strain risk-analysis of 403 representative C. jejuni isolates from chicken broilers (n = 204) and sporadic cases of human diarrhea (n = 199) over a decade (2006-2015) in Belgium, using multilocus sequence typing (MLST), PCR binary typing (P-BIT), and identification of lipooligosaccharide (LOS) biosynthesis locus classes. A total of 123 distinct sequence types (STs), clustered in 28 clonal complexes (CCs) were assigned, including ten novel sequence types that were not previously documented in the international database. Sequence types ST-48, ST-21, ST-50, ST-45, ST-464, ST-2274, ST-572, ST-19, ST-257 and ST-42 were the most prevalent. Clonal complex 21 was the main clonal complex in isolates from humans and chickens. Among observed STs, a total of 35 STs that represent 72.2% (291/403) of the isolates were identified in both chicken and human isolates confirming considerable epidemiological relatedness; these 35 STs also clustered together in the most prevalent CCs. A majority of the isolates harbored sialylated LOS loci associated with potential neuropathic outcomes in humans. Although the concordance between MLST and P-BIT, determined by the adjusted Rand and Wallace coefficients, showed low congruence between both typing methods. The discriminatory power of P-BIT and MLST was similar, with Simpson's diversity indexes of 0.978 and 0.975, respectively. Furthermore, P-BIT could provide additional epidemiological information that would provide further insights regarding the potential association to human health from each strain. In addition, certain clones could be linked to specific clinical symptoms. Indeed, LOS class E was associated with less severe infections. Moreover, ST-572 was significantly associated with clinical infections occurring after travelling abroad. Ultimately, the data generated from this study will help to better understand the molecular epidemiology of C. jejuni infection.
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Affiliation(s)
- Mohamed Elhadidy
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt; University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt.
| | - Hector Arguello
- Genomic and Animal Biotechnology, Department of Genetics, Veterinary Faculty, Universidad de Córdoba, 14047, Córdoba, Spain
| | - Avelino Álvarez-Ordóñez
- Department of Food Hygiene and Technology and Institute of Food Science and Technology, University of León, Spain
| | - William G Miller
- Produce Safety and Microbiology Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Albany, CA, USA
| | - Alexandra Duarte
- Laboratory of Food Microbiology and Food Preservation, Department of Food Safety and Food Quality, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Gent, Belgium; National Reference Laboratory for Campylobacter, Scientific Institute of Public Health (WIV-ISP), Scientific Service: Foodborne Pathogens, Juliette Wytsman Street 14, 1050 Brussels, Belgium
| | - Delphine Martiny
- National Reference Center for Campylobacter, Saint Pierre University Hospital, Brussels, Belgium; Department of Microbiology, LHUB-ULB, Pôle Hospitalier Universitaire de Bruxelles, Brussels, Belgium
| | - Marie Hallin
- National Reference Center for Campylobacter, Saint Pierre University Hospital, Brussels, Belgium; Department of Microbiology, LHUB-ULB, Pôle Hospitalier Universitaire de Bruxelles, Brussels, Belgium; Department of Molecular Diagnosis, LHUB-ULB, Pôle Hospitalier Universitaire de Bruxelles, Brussels, Belgium
| | - Olivier Vandenberg
- National Reference Center for Campylobacter, Saint Pierre University Hospital, Brussels, Belgium; Department of Microbiology, LHUB-ULB, Pôle Hospitalier Universitaire de Bruxelles, Brussels, Belgium; Center for Environmental Health and Occupational Health, School of Public Health, Université Libre de Bruxelles, Brussels, Belgium
| | - Katelijne Dierick
- National Reference Laboratory for Campylobacter, Scientific Institute of Public Health (WIV-ISP), Scientific Service: Foodborne Pathogens, Juliette Wytsman Street 14, 1050 Brussels, Belgium
| | - Nadine Botteldoorn
- National Reference Laboratory for Campylobacter, Scientific Institute of Public Health (WIV-ISP), Scientific Service: Foodborne Pathogens, Juliette Wytsman Street 14, 1050 Brussels, Belgium
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