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Ding M, Qin C, Sun W, Tian G, Zou X, Hu J, Yin J. Chemical Synthesis of a Densely Functionalized Aminodisaccharide from Fusobacterium nucleatum ATCC 23726 O-Antigen. Org Lett 2024; 26:4142-4146. [PMID: 38717147 DOI: 10.1021/acs.orglett.4c01344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Fusobacterium nucleatum, a colorectal-cancer-associated oncomicrobe, can trigger or accelerate numerous pathologies. We report the first synthesis of a conjugation-ready disaccharide containing six amino groups from F. nucleatum ATCC 23726 O-antigen. Rare 2,3-diamido-d-glucuronic acid amide and 2-acetamido-4-amino-d-fucose were synthesized from d-glucosamine through configuration inversion, nucleophilic substitution, C6 oxidation, and C6 deoxygenation. A judicious choice of protecting groups and reaction conditions enabled the selective installation of N-acetyl, N-propanoyl, N-formyl, and carboxamido groups.
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Affiliation(s)
- Meiru Ding
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Chunjun Qin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Wenbin Sun
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Guangzong Tian
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Xiaopeng Zou
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Jing Hu
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China
| | - Jian Yin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology & School of Life Sciences and Health Engineering, Jiangnan University, Wuxi 214122, China
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2
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Artyszuk D, Jachymek W, Izdebski R, Gniadkowski M, Lukasiewicz J. The OL101 O antigen locus specifies a novel Klebsiella pneumoniae serotype O13 structure. Carbohydr Polym 2024; 326:121581. [PMID: 38142087 DOI: 10.1016/j.carbpol.2023.121581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/27/2023] [Accepted: 11/09/2023] [Indexed: 12/25/2023]
Abstract
Klebsiella pneumoniae is one of the priority objects for the development of new therapies against infections. The species has been perceived as of limited variety of O antigens (11 O serotypes identified to date). That trait makes lipopolysaccharide an attractive target for protective antibodies. Nowadays, K. pneumoniae O antigens encoding genes are often analysed by bioinformatic tools, such as Kaptive, indicating higher actual diversity of the O antigen loci. One of the novel K. pneumoniae O loci for which the antigen structure has not been elucidated so far is OL101. In this study, four clinical isolates predicted as OL101 were characterized and found to have the O antigen structure composed of β-Kdop-[→3)-α-l-Rhap-(1→4)-α-d-Glcp-(1→]n, representing a novel serotype O13. Identification of the β-Kdop terminus was based on the analysis of the complete LPS molecule by the HR-MAS NMR spectroscopy. The bioinformatic analysis of 71,377 K. pneumoniae genomes from public databases (July 2023) revealed a notable OL101 prevalence of 6.55 %.
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Affiliation(s)
- Daria Artyszuk
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Laboratory of Microbial Immunochemistry and Vaccines, 53-114 Wroclaw, Poland
| | - Wojciech Jachymek
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Laboratory of Microbial Immunochemistry and Vaccines, 53-114 Wroclaw, Poland
| | - Radosław Izdebski
- National Medicines Institute, Department of Molecular Microbiology, 00-725 Warsaw, Poland
| | - Marek Gniadkowski
- National Medicines Institute, Department of Molecular Microbiology, 00-725 Warsaw, Poland
| | - Jolanta Lukasiewicz
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Laboratory of Microbial Immunochemistry and Vaccines, 53-114 Wroclaw, Poland.
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3
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Krivoruchko AA, Zdorovenko EL, Ivanova MF, Kostina EE, Fedonenko YP, Shashkov AS, Dmitrenok AS, Ul’chenko EA, Tkachenko OV, Astankova AS, Burygin GL. Structure, Physicochemical Properties and Biological Activity of Lipopolysaccharide from the Rhizospheric Bacterium Ochrobactrum quorumnocens T1Kr02, Containing d-Fucose Residues. Int J Mol Sci 2024; 25:1970. [PMID: 38396650 PMCID: PMC10888714 DOI: 10.3390/ijms25041970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/02/2024] [Accepted: 02/03/2024] [Indexed: 02/25/2024] Open
Abstract
Lipopolysaccharides (LPSs) are major components of the outer membranes of Gram-negative bacteria. In this work, the structure of the O-polysaccharide of Ochrobactrum quorumnocens T1Kr02 was identified by nuclear magnetic resonance (NMR), and the physical-chemical properties and biological activity of LPS were also investigated. The NMR analysis showed that the O-polysaccharide has the following structure: →2)-β-d-Fucf-(1→3)-β-d-Fucp-(1→. The structure of the periplasmic glucan coextracted with LPS was established by NMR spectroscopy and chemical methods: →2)-β-d-Glcp-(1→. Non-stoichiometric modifications were identified in both polysaccharides: 50% of d-fucofuranose residues at position 3 were O-acetylated, and 15% of d-Glcp residues at position 6 were linked with succinate. This is the first report of a polysaccharide containing both d-fucopyranose and d-fucofuranose residues. The fatty acid analysis of the LPS showed the prevalence of 3-hydroxytetradecanoic, hexadecenoic, octadecenoic, lactobacillic, and 27-hydroxyoctacosanoic acids. The dynamic light scattering demonstrated that LPS (in an aqueous solution) formed supramolecular particles with a size of 72.2 nm and a zeta-potential of -21.5 mV. The LPS solution (10 mkg/mL) promoted the growth of potato microplants under in vitro conditions. Thus, LPS of O. quorumnocens T1Kr02 can be recommended as a promoter for plants and as a source of biotechnological production of d-fucose.
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Affiliation(s)
- Aleksandra A. Krivoruchko
- Department of Organic and Bioorganic Chemistry, Institute of Chemistry, Saratov State University, 410012 Saratov, Russia
| | - Evelina L. Zdorovenko
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia; (E.L.Z.)
| | - Maria F. Ivanova
- Department of Plant Breeding, Selection, and Genetics, Faculty of Agronomy, Saratov State University of Genetics, Biotechnology and Engineering Named after N.I. Vavilov, 410012 Saratov, Russia (O.V.T.)
| | - Ekaterina E. Kostina
- Department of Plant Breeding, Selection, and Genetics, Faculty of Agronomy, Saratov State University of Genetics, Biotechnology and Engineering Named after N.I. Vavilov, 410012 Saratov, Russia (O.V.T.)
| | - Yulia P. Fedonenko
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences, 410049 Saratov, Russia
- Department of Biochemistry and Biophysics, Faculty of Biology, Saratov State University, 410012 Saratov, Russia
| | - Alexander S. Shashkov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia; (E.L.Z.)
| | - Andrey S. Dmitrenok
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia; (E.L.Z.)
| | - Elizaveta A. Ul’chenko
- Department of Biomedical Products, Faculty of Chemical Pharmaceutical Technologies, D.I. Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia
| | - Oksana V. Tkachenko
- Department of Plant Breeding, Selection, and Genetics, Faculty of Agronomy, Saratov State University of Genetics, Biotechnology and Engineering Named after N.I. Vavilov, 410012 Saratov, Russia (O.V.T.)
| | - Anastasia S. Astankova
- Department of Organic and Bioorganic Chemistry, Institute of Chemistry, Saratov State University, 410012 Saratov, Russia
| | - Gennady L. Burygin
- Department of Organic and Bioorganic Chemistry, Institute of Chemistry, Saratov State University, 410012 Saratov, Russia
- Department of Plant Breeding, Selection, and Genetics, Faculty of Agronomy, Saratov State University of Genetics, Biotechnology and Engineering Named after N.I. Vavilov, 410012 Saratov, Russia (O.V.T.)
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences, 410049 Saratov, Russia
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Sigida EN, Kuzina MS, Kokoulin MS, Ibrahim IM, Grinev VS, Konnova SA, Fedonenko YP. Structure of the O-polysaccharide from the moderately halophilic bacterium Halomonas fontilapidosi KR26. Carbohydr Res 2024; 536:109019. [PMID: 38211449 DOI: 10.1016/j.carres.2023.109019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 01/13/2024]
Abstract
Lipopolysaccharide was obtained from the aerobic moderately halophilic bacterium Halomonas fontilapidosi KR26. The O-polysaccharide was isolated by mild acid degradation of the lipopolysaccharide and was examined by chemical methods and by 1H and 13C NMR spectroscopy, including 1H,1H COSY, TOCSY, ROESY, and 1H,13C HSQC, and HMBC experiments. The following structure of the linear tetrasaccharide repeating unit was deduced. →2)-α-l-Rhap-(1→2)-α-l-Rhap-(1→3)-α-l-Rhap-(1→3)-β-d-Galp-(1→.
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Affiliation(s)
- Elena N Sigida
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov, 410049, Russia.
| | - Marina S Kuzina
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov, 410049, Russia
| | - Maxim S Kokoulin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159/2 Prospekt 100 let Vladivostoku, Vladivostok, 690022, Russia
| | - Ibrahim M Ibrahim
- Department of Agricultural Microbiology, Faculty of Agriculture, Fayoum University, Fayoum, 63514, Egypt
| | - Vyacheslav S Grinev
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov, 410049, Russia; Chernyshevsky Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov, 410012, Russia
| | - Svetlana A Konnova
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov, 410049, Russia; Chernyshevsky Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov, 410012, Russia
| | - Yuliya P Fedonenko
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov, 410049, Russia; Chernyshevsky Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov, 410012, Russia
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5
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Kasimova AA, Shashkov AS, Perepelov AV, Babich T, Demina L, Popova N, Krivonos D, Safonov A. Structure elucidation and gene cluster of the O-antigen of Shewanella xiamenensis strain DCB-2-1 containing an amide of d-glucuronic acid with d-alanine and its bonding with U, Cr and V. Int J Biol Macromol 2023; 253:127546. [PMID: 37863146 DOI: 10.1016/j.ijbiomac.2023.127546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/11/2023] [Accepted: 10/17/2023] [Indexed: 10/22/2023]
Abstract
The aim of this work was to examine the structure and gene cluster of O-OPS of S. xiamenensis strain DCB-2-1 and survey its conceivability for chelating uranyl, chromate and vanadate ions from solution. O-polysaccharide (OPS, O-antigen) was isolated from the lipopolysaccharide of Shewanella xiamenensis DCB-2-1 and studied by 1D and 2D nuclear magnetic resonance (NMR) spectroscopy and sugar analysis. The following structure of the brunched pentasaccharide was established: where d-β-GlcpA(d-Ala) is d-glucuronic acid acylated with NH group of d-Ala. The OPS structure established is unique among known bacterial polysaccharide structures. Interestingly, that dN-(d-glucuronoyl)-d-alanine derivative is not found in bacterial polysaccharides early. The O-antigen gene cluster of Shewanella xiamenensis strain DCB-2-1 has been sequenced. The gene functions were tentatively assigned by comparison with sequences in the available databases and found to be in agreement with the OPS structure. Based on the analysis of the IR spectra of the isolated polysaccharide DCB-2-1 and the products of its interaction with UO2(NO3)2 ∗ 6H2O, NH4VO3 and K2Cr2O7, a method of binding them can be proposed. Laboratory experiments show that the use of polysaccharide can be effective in removing uranyl, chromate and vanadate from solution.
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Affiliation(s)
- Anastasiya A Kasimova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Aleksander S Shashkov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Andrei V Perepelov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Tamara Babich
- Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
| | - Ludmila Demina
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31, Leninsky Ave., 199071 Moscow, Russia
| | - Nadezhda Popova
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31, Leninsky Ave., 199071 Moscow, Russia
| | - Danil Krivonos
- Research Institute for Systems Biology and Medicine (RISBM), Nauchniy proezd 18, 117246 Moscow, Russia; Institute of Physics and Technology (State University), Dolgoprudny, Russia
| | - Alexey Safonov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31, Leninsky Ave., 199071 Moscow, Russia.
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6
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Hong Y, Hu D, Verderosa AD, Qin J, Totsika M, Reeves PR. Repeat-Unit Elongations To Produce Bacterial Complex Long Polysaccharide Chains, an O-Antigen Perspective. EcoSal Plus 2023; 11:eesp00202022. [PMID: 36622162 DOI: 10.1128/ecosalplus.esp-0020-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 12/02/2022] [Indexed: 01/10/2023]
Abstract
The O-antigen, a long polysaccharide that constitutes the distal part of the outer membrane-anchored lipopolysaccharide, is one of the critical components in the protective outer membrane of Gram-negative bacteria. Most species produce one of the structurally diverse O-antigens, with nearly all the polysaccharide components having complex structures made by the Wzx/Wzy pathway. This pathway produces repeat-units of mostly 3-8 sugars on the cytosolic face of the cytoplasmic membrane that is translocated by Wzx flippase to the periplasmic face and polymerized by Wzy polymerase to give long-chain polysaccharides. The Wzy polymerase is a highly diverse integral membrane protein typically containing 10-14 transmembrane segments. Biochemical evidence confirmed that Wzy polymerase is the sole driver of polymerization, and recent progress also began to demystify its interacting partner, Wzz, shedding some light to speculate how the proteins may operate together during polysaccharide biogenesis. However, our knowledge of how the highly variable Wzy proteins work as part of the O-antigen processing machinery remains poor. Here, we discuss the progress to the current understanding of repeat-unit polymerization and propose an updated model to explain the formation of additional short chain O-antigen polymers found in the lipopolysaccharide of diverse Gram-negative species and their importance in the biosynthetic process.
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Affiliation(s)
- Yaoqin Hong
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, New South Wales, Australia
| | - Dalong Hu
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Anthony D Verderosa
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Jilong Qin
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Makrina Totsika
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Peter R Reeves
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, New South Wales, Australia
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Kowalczyk A, Kaczyńska N, Motyka-Pomagruk A, Śledź W, Łojkowska E, Kaczyński Z. The chemical structure of the O-antigen and enterobacterial common antigen of Pectobacterium brasiliense NCPPB 4609 TS. Carbohydr Res 2023; 534:108983. [PMID: 37980861 DOI: 10.1016/j.carres.2023.108983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/07/2023] [Accepted: 11/07/2023] [Indexed: 11/21/2023]
Abstract
Pectobacterium brasiliense is a widely distributed phytopathogenic bacterium that causes diseases such as soft rot and blackleg, leading to significant yield losses in potatoes as well as other vegetables and ornamental plants. Lipopolysaccharide (LPS) is an important virulence factor that plays an essential role in colonisation of plant tissues and overcoming the host defence mechanisms. The O-polysaccharide from the LPS of P. brasiliense strain NCPPB 4609TS (=CFBP 6617TS = LMG 21371TS = IFB5390) was structurally characterised using spectroscopic techniques and chemical methods. The analyses revealed that the polysaccharide repeating unit consists of Gal, GlcN and an unusual 3-amino-3,6-dideoxyglucose decorated with (R)-3-hydroxybutyric acid according to the structure shown below: In addition, another polysaccharide was isolated from bacterial cells, analysis of which led to the identification of an enterobacterial common antigen, containing N-acetyl-d-glucosamine, N-acetyl-d-mannosaminouronic acid, and 4-acetamido-4,6-dideoxy-d-galactose.
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Affiliation(s)
- Agnieszka Kowalczyk
- Faculty of Chemistry, University of Gdansk, 63 Wita Stwosza, 80-308, Gdansk, Poland.
| | - Natalia Kaczyńska
- Laboratory of Plant Protection and Biotechnology, Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of Gdansk, University of Gdansk, 58 Abrahama, 80-307, Gdansk, Poland; Research & Development Laboratory, Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of Gdansk, University of Gdansk, 20 Podwale Przedmiejskie, 80-824, Gdansk, Poland
| | - Agata Motyka-Pomagruk
- Laboratory of Plant Protection and Biotechnology, Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of Gdansk, University of Gdansk, 58 Abrahama, 80-307, Gdansk, Poland; Research & Development Laboratory, Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of Gdansk, University of Gdansk, 20 Podwale Przedmiejskie, 80-824, Gdansk, Poland
| | - Wojciech Śledź
- Laboratory of Plant Protection and Biotechnology, Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of Gdansk, University of Gdansk, 58 Abrahama, 80-307, Gdansk, Poland; Research & Development Laboratory, Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of Gdansk, University of Gdansk, 20 Podwale Przedmiejskie, 80-824, Gdansk, Poland
| | - Ewa Łojkowska
- Laboratory of Plant Protection and Biotechnology, Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of Gdansk, University of Gdansk, 58 Abrahama, 80-307, Gdansk, Poland; Research & Development Laboratory, Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of Gdansk, University of Gdansk, 20 Podwale Przedmiejskie, 80-824, Gdansk, Poland
| | - Zbigniew Kaczyński
- Faculty of Chemistry, University of Gdansk, 63 Wita Stwosza, 80-308, Gdansk, Poland
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Halder T, Yadav SK, Yadav S. Chemical synthesis of the O-antigen repeating unit of Actinobacillus actinomycetemcomitans serotype f. Carbohydr Res 2023; 534:108977. [PMID: 37949033 DOI: 10.1016/j.carres.2023.108977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 10/14/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
Herein, we report the total synthesis of the trisaccharide repeating unit of the O-antigen of Actinobacillus actinomycetemcomitans serotype f. The trisaccharide comprising of α-(1-2) and α-(1-3)-linked L-rhamnopyranosides backbone with the latter rhamnose containing a branching N-acetyl-d-galactosaminopyranoside at the C2-O via a β-glycosidic bond was synthesized by two methods. Initially, the protected trisaccharide has been synthesized by step-wise assembly of the monosaccharide building blocks and subsequently the former was synthesized by the one-pot assembly of the latter components. The synthesized trisaccharide contains an aminoethyl linker appended as an O-glycoside at the reducing end, thereby providing scope for further conjugation for different applications.
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Affiliation(s)
- Tanmoy Halder
- Department of Chemistry & Chemical Biology, Indian Institute of Technology (ISM) Dhanbad, Dhanbad, 826004, Jharkhand, India
| | - Sunil K Yadav
- Department of Chemistry & Chemical Biology, Indian Institute of Technology (ISM) Dhanbad, Dhanbad, 826004, Jharkhand, India
| | - Somnath Yadav
- Department of Chemistry & Chemical Biology, Indian Institute of Technology (ISM) Dhanbad, Dhanbad, 826004, Jharkhand, India.
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9
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Palusiak A, Turska-Szewczuk A, Drzewiecka D. Antigenic and Structural Properties of the Lipopolysaccharide of the Uropathogenic Proteus mirabilis Dm55 Strain Classified to a New O85 Proteus Serogroup. Int J Mol Sci 2023; 24:16424. [PMID: 38003613 PMCID: PMC10671486 DOI: 10.3390/ijms242216424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/08/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
The aim of the study was the serological and structural characterization of the lipopolysaccharide (LPS) O antigen from P. mirabilis Dm55 coming from the urine of a patient from Lodz. The Dm55 LPS was recognized in ELISA only by the O54 antiserum, suggesting a serological distinction of the Dm55 O antigen from all the 84 Proteus LPS serotypes described. The obtained polyclonal rabbit serum against P. mirabilis Dm55 reacted in ELISA and Western blotting with a few LPSs (including O54), but the reactions were weaker than those observed in the homologous system. The LPS of P. mirabilis Dm55 was subjected to mild acid hydrolysis, and the obtained high-molecular-mass O polysaccharide was chemically studied using sugar and methylation analyses, mass spectrometry, and 1H and 13C NMR spectroscopy, including 1H,1H NOESY, and 1H,13C HMBC experiments. The Dm55 O unit is a branched three-saccharide, and its linear fragment contains α-GalpNAc and β-Galp, whereas α-GlcpNAc occupies a terminal position. The Dm55 OPS shares a disaccharide epitope with the Proteus O54 antigen. Due to the structural differences of the studied O antigen from the other described Proteus O polysaccharides, we propose to classify the P. mirabilis Dm55 strain to a new Proteus O85 serogroup.
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Affiliation(s)
- Agata Palusiak
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland;
| | - Anna Turska-Szewczuk
- Department of Genetics and Microbiology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland;
| | - Dominika Drzewiecka
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland;
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10
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Solovev AS, Denisova EM, Kurbatova EA, Kutsevalova OY, Boronina LG, Ageevets VA, Sidorenko SV, Krylov VB, Nifantiev NE. Synthesis of methylphosphorylated oligomannosides structurally related to lipopolysaccharide O-antigens of Klebsiella pneumoniae serotype O3 and their application for detection of specific antibodies in rabbit and human sera. Org Biomol Chem 2023; 21:8306-8319. [PMID: 37794804 DOI: 10.1039/d3ob01203d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Methylphosphorylated mono-, di- and trimannosides structurally related to the lipopolysaccharide (LPS) O-antigens of Klebsiella pneumoniae of serotype O3 were synthesized and conjugated with a biotin tag. The stereo- and regioselective assembly of target carbohydrate chains was conducted using uniform monosaccharide synthetic blocks. After that, a methylphosphate group was introduced by coupling with a methyl-H-phosphonate reagent followed by oxidation and deprotection to give the target oligosaccharides. The 1H and 13C NMR spectra of the obtained compounds showed a good fit with the spectrum of the corresponding natural polysaccharide. The newly prepared biotinylated oligosaccharides along with the previously reported biotinylated glycoconjugates related to galactan I and galactan II of K. pneumoniae LPS were used for the ELISA detection of antibodies in anti-K. pneumoniae rabbit sera. Anti-O3 serum antibodies specifically recognized the synthesized oligosaccharide ligands with terminal methylphosphomannosyl residues, whereas anti-O1 serum antibodies recognized the oligosaccharide related to K. pneumoniae galactan II. The analysis of human sera from patients with confirmed Klebsiella infection also revealed the presence of antibodies against the synthesized oligosaccharides in clinical cases. Thus, the described compounds together with other Klebsiella related antigenic oligosaccharides could be potentially used as molecular probes for K. pneumoniae serological diagnostics development and strain serotyping.
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Affiliation(s)
- Arsenii S Solovev
- Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russian Federation
| | - Evgeniya M Denisova
- Laboratory of Synthetic Glycovaccines, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russian Federation.
| | - Ekaterina A Kurbatova
- Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russian Federation
- Laboratory of Immunology, I. I. Mechnikov Research Institute for Vaccines and Sera, Moscow, Russia
| | - Olga Y Kutsevalova
- National Medical Research Center of Oncology, Laboratory of Clinical Microbiology, 14 Liniya Str., 63, 344037 Rostov-on-Don, Russia
| | - Liubov G Boronina
- Ural State Medical University, 3 Repina Str., 620028 Yekaterinburg, Russia
| | - Vladimir A Ageevets
- Pediatric Research and Clinical Center for Infectious Diseases, 9 Prof. Popov Street, 197022 Saint Petersburg, Russia
| | - Sergey V Sidorenko
- Pediatric Research and Clinical Center for Infectious Diseases, 9 Prof. Popov Street, 197022 Saint Petersburg, Russia
| | - Vadim B Krylov
- Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russian Federation
- Laboratory of Synthetic Glycovaccines, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russian Federation.
| | - Nikolay E Nifantiev
- Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russian Federation
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11
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Wang J, Qin C, Xu Y, Yin J, Hu J, Guo X. Structural and Genetic Identification of the O-Antigen from an Escherichia coli Isolate, SD2019180, Representing a Novel Serogroup. Int J Mol Sci 2023; 24:15040. [PMID: 37894721 PMCID: PMC10606467 DOI: 10.3390/ijms242015040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/07/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023] Open
Abstract
The O-antigen is one of the outermost surface components of Gram-negative bacteria. Its large structural variation provides the molecular basis for bacterial serological diversity. Here, we established the structure of the O-antigen from an Escherichia coli strain, SD2019180, which appeared to be completely different from the known E. coli serogroups. The O-antigen tetrasaccharide biological repeating unit was identified as → 2)-[β-d-GlcpA-(1 → 4)]-[α-d-Galp-(1 → 3)]-α-l-Fucp-(1 → 3)-α-d-GlcpNAc-(1 →. Furthermore, we analyzed the O-antigen gene cluster of SD2019180 and confirmed its role in O-antigen synthesis by using deletion and complementation experiments. Our findings indicate that SD2019180 is a novel serogroup of Escherichia coli.
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Affiliation(s)
- Jing Wang
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, 23 Hongda Street, TEDA, Tianjin 300457, China
| | - Chunjun Qin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Ave. 1800, Wuxi 214122, China
| | - Yujuan Xu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Ave. 1800, Wuxi 214122, China
| | - Jian Yin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Ave. 1800, Wuxi 214122, China
| | - Jing Hu
- Wuxi School of Medicine, Jiangnan University, Lihu Ave. 1800, Wuxi 214122, China
| | - Xi Guo
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, 23 Hongda Street, TEDA, Tianjin 300457, China
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12
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Duan L, Nie Q, Hu Y, Wang L, Guo K, Zhou Z, Song X, Tu Y, Liu H, Hansen T, Sun JS, Zhang Q. Stereoselective Synthesis of the O-antigen of A. baumannii ATCC 17961 Using Long-Range Levulinoyl Group Participation. Angew Chem Int Ed Engl 2023; 62:e202306971. [PMID: 37327196 DOI: 10.1002/anie.202306971] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/18/2023]
Abstract
Herein, we described the first synthesis of the pentasaccharide and decasaccharide of the A. baumannii ATCC 17961 O-antigen for developing a synthetic carbohydrate-based vaccine against A. baumannii infection. The efficient synthesis of the rare sugar 2,3-diacetamido-glucuronate was achieved using our recently introduced organocatalytic glycosylation method. We found, for the first time, that long-range levulinoyl group participation via a hydrogen bond can result in a significantly improved β-selectivity in glycosylations. This solves the stereoselectivity problem of highly branched galactose acceptors. The proposed mechanism was supported by control experiments and DFT computations. Benefiting from the long-range levulinoyl group participation strategy, the pentasaccharide donor and acceptor were obtained via an efficient [2+1+2] one-pot glycosylation method and were used for the target decasaccharide synthesis.
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Affiliation(s)
- Liangshen Duan
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nan Chang, 330022, China
| | - Qin Nie
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nan Chang, 330022, China
| | - Yongxin Hu
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nan Chang, 330022, China
| | - Liming Wang
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nan Chang, 330022, China
| | - Kaiyan Guo
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nan Chang, 330022, China
| | - Zhuoyi Zhou
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nan Chang, 330022, China
| | - Xu Song
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nan Chang, 330022, China
| | - Yuanhong Tu
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nan Chang, 330022, China
| | - Hui Liu
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nan Chang, 330022, China
| | - Thomas Hansen
- Department of Chemistry and Pharmaceutical Sciences, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam (The, Netherlands
| | - Jian-Song Sun
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nan Chang, 330022, China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, and Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Qingju Zhang
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nan Chang, 330022, China
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13
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Rana A, Shit P, Misra AK. Straightforward synthesis of the hexasaccharide repeating unit of the O-specific polysaccharide of Salmonella arizonae O62. Glycoconj J 2023; 40:449-459. [PMID: 37219745 DOI: 10.1007/s10719-023-10122-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 01/17/2023] [Accepted: 05/10/2023] [Indexed: 05/24/2023]
Abstract
A straightforward synthesis of the hexasaccharide repeating unit of the O-specific polysaccharide of Salmonella arizonae O62 was achieved in very good yield applying sequential glycosylation strategy. Successful regioselective glycosylation of the di-hydroxylated L-rhamnose moiety allowed achieving the desired compound in minimum number of synthetic steps. TEMPO catalyzed and [bis(acetoxy)iodo]benzene (BAIB) mediated late stage regioselective oxidation of a primary hydroxyl group into carboxylic acid was achieved in the hexasaccharide derivative. The glycosylation steps were high yielding with high stereochemical outcome. The desired hexasaccharide was obtained in 7% over all yield in fourteen steps starting from suitably functionalized monosaccharide intermediates.
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Affiliation(s)
- Abhijit Rana
- Department of Chemical Science, Bose Institute, Block EN-80, Sector-V, Salt Lake, Kolkata, 700091, India
| | - Pradip Shit
- Department of Chemical Science, Bose Institute, Block EN-80, Sector-V, Salt Lake, Kolkata, 700091, India
| | - Anup Kumar Misra
- Department of Chemical Science, Bose Institute, Block EN-80, Sector-V, Salt Lake, Kolkata, 700091, India.
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14
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Weckener M, Woodward LS, Clarke BR, Liu H, Ward PN, Le Bas A, Bhella D, Whitfield C, Naismith JH. The lipid linked oligosaccharide polymerase Wzy and its regulating co-polymerase, Wzz, from enterobacterial common antigen biosynthesis form a complex. Open Biol 2023; 13:220373. [PMID: 36944376 PMCID: PMC10030265 DOI: 10.1098/rsob.220373] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 02/27/2023] [Indexed: 03/23/2023] Open
Abstract
The enterobacterial common antigen (ECA) is a carbohydrate polymer that is associated with the cell envelope in the Enterobacteriaceae. ECA contains a repeating trisaccharide which is polymerized by WzyE, a member of the Wzy membrane protein polymerase superfamily. WzyE activity is regulated by a membrane protein polysaccharide co-polymerase, WzzE. Förster resonance energy transfer experiments demonstrate that WzyE and WzzE from Pectobacterium atrosepticum form a complex in vivo, and immunoblotting and cryo-electron microscopy (cryo-EM) analysis confirm a defined stoichiometry of approximately eight WzzE to one WzyE. Low-resolution cryo-EM reconstructions of the complex, aided by an antibody recognizing the C-terminus of WzyE, reveals WzyE sits in the central membrane lumen formed by the octameric arrangement of the transmembrane helices of WzzE. The pairing of Wzy and Wzz is found in polymerization systems for other bacterial polymers, including lipopolysaccharide O-antigens and capsular polysaccharides. The data provide new structural insight into a conserved mechanism for regulating polysaccharide chain length in bacteria.
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Affiliation(s)
- Miriam Weckener
- Structural Biology, The Rosalind Franklin Institute, Harwell Campus, Didcot OX11 0QS, UK
- Division of Structural Biology, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK
| | - Laura S. Woodward
- Centre Biomedical Sciences, North Haugh, University of St Andrews, St Andrews KY16 9ST, UK
| | - Bradley R. Clarke
- Department of Molecular and Cellular Biology, The University of Guelph, Guelph, ON, Canada
| | - Huanting Liu
- Centre Biomedical Sciences, North Haugh, University of St Andrews, St Andrews KY16 9ST, UK
| | - Philip N. Ward
- Structural Biology, The Rosalind Franklin Institute, Harwell Campus, Didcot OX11 0QS, UK
- Division of Structural Biology, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK
| | - Audrey Le Bas
- Structural Biology, The Rosalind Franklin Institute, Harwell Campus, Didcot OX11 0QS, UK
- Division of Structural Biology, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK
| | - David Bhella
- MRC—University of Glasgow Centre for Virus Research, University of Glasgow, Sir Michael Stoker Building, Garscube Campus, 464 Bearsden Road, Glasgow G61 1Q, UK
| | - Chris Whitfield
- Department of Molecular and Cellular Biology, The University of Guelph, Guelph, ON, Canada
| | - James H. Naismith
- Structural Biology, The Rosalind Franklin Institute, Harwell Campus, Didcot OX11 0QS, UK
- Division of Structural Biology, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK
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15
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Drzewiecka D, Siwińska M, Senchenkova SN, Levina EA, Shashkov AS, Knirel YA. Structural and Serological Characterization of the O Antigen of Proteus mirabilis Clinical Isolates Classified into a New Proteus Serogroup, O84. Int J Mol Sci 2023; 24:ijms24054699. [PMID: 36902128 PMCID: PMC10003115 DOI: 10.3390/ijms24054699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/24/2023] [Accepted: 02/26/2023] [Indexed: 03/05/2023] Open
Abstract
Two closely related Proteus mirabilis smooth strains, Kr1 and Ks20, were isolated from wound and skin samples, respectively, of two infected patients in central Poland. Serological tests, using the rabbit Kr1-specific antiserum, revealed that both strains presented the same O serotype. Their O antigens are unique among the Proteus O serotypes, which had been described earlier, as they were not recognized in an enzyme-linked immunosorbent assay (ELISA) by a set of Proteus O1-O83 antisera. Additionally, the Kr1 antiserum did not react with O1-O83 lipopolysaccharides (LPSs). The O-specific polysaccharide (OPS, O antigen) of P. mirabilis Kr1 was obtained via the mild acid degradation of the LPSs, and its structure was established via a chemical analysis and one- and two-dimensional 1H and 13C nuclear magnetic resonance (NMR) spectroscopy applied to both initial and O-deacetylated polysaccharides, where most β-2-acetamido-2-deoxyglucose (N-acetylglucosamine) (GlcNAc) residues are non-stoichiometrically O-acetylated at positions 3, 4, and 6 or 3 and 6, and a minority of α-GlcNAc residues are 6-O-acetylated. Based on the serological features and chemical data, P. mirabilis Kr1 and Ks20 were proposed as candidates to a new successive O-serogroup in the genus Proteus, O84, which is another example of new Proteus O serotypes identified lately among serologically differentiated Proteus bacilli infecting patients in central Poland.
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Affiliation(s)
- Dominika Drzewiecka
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, 90-237 Lodz, Poland
- Correspondence: ; Tel.: +48-42-6354469; Fax: +48-42-6655818
| | - Małgorzata Siwińska
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, 90-237 Lodz, Poland
| | - Sof’ya N. Senchenkova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Evgeniya A. Levina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alexander S. Shashkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Yuriy A. Knirel
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
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16
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Swatek A, Kaczyński Z, Kasperkiewicz K, Pawlik M, Komaniecka I, Choma A. Structure of the lipopolysaccharide O-antigen of Serratia spp. strains 10.1WK and 1XS plant endophytes isolated from O. biennis and L. corniculatus. Carbohydr Res 2023; 524:108760. [PMID: 36753890 DOI: 10.1016/j.carres.2023.108760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/22/2023] [Accepted: 01/24/2023] [Indexed: 01/26/2023]
Abstract
O-specific polysaccharides (O-PSs) isolated from lipopolysaccharides of Serratia spp., strains 10.1WK and 1XS, which are endophytic bacteria of Oenothera biennis (common evening-primrose) and Lotus corniculatus (bird's-foot trefoil), plants growing on a petroleum hydrocarbon polluted site in the Silesia region, were investigated. The high-molecular-weight O-PS fractions liberated from lipopolysaccharides by mild acid hydrolysis were studied using chemical methods, MALDI-TOF mass spectrometry, and a set of 1D and 2D NMR spectroscopy techniques. It was found that both O-specific polysaccharides were built of an identical trisaccharide repeating unit composed of d-Rhap and d-Manp residues. The following structure of the O-PSs of Serratia spp. strains 10.1WK and 1XS was established: →4)-α-d-Rhap-(1 → 3)-β-d-Manp-(1 → 4)-β-d-Rhap-(1→.
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Affiliation(s)
- Anita Swatek
- Department of Genetics and Microbiology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, 20-033, Lublin, Poland
| | - Zbigniew Kaczyński
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308, Gdansk, Poland
| | - Katarzyna Kasperkiewicz
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28, 40-032, Katowice, Poland
| | - Małgorzata Pawlik
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28, 40-032, Katowice, Poland
| | - Iwona Komaniecka
- Department of Genetics and Microbiology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, 20-033, Lublin, Poland
| | - Adam Choma
- Department of Genetics and Microbiology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, 20-033, Lublin, Poland.
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17
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Larson MR, Biddle K, Gorman A, Boutom S, Rosenshine I, Saper MA. Escherichia coli O127 group 4 capsule proteins assemble at the outer membrane. PLoS One 2021; 16:e0259900. [PMID: 34780538 PMCID: PMC8592465 DOI: 10.1371/journal.pone.0259900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 10/28/2021] [Indexed: 12/26/2022] Open
Abstract
Enteropathogenic Escherichia coli O127 is encapsulated by a protective layer of polysaccharide made of the same strain specific O-antigen as the serotype lipopolysaccharide. Seven genes encoding capsule export functions comprise the group 4 capsule (gfc) operon. Genes gfcE, etk and etp encode homologs of the group 1 capsule secretion system but the upstream gfcABCD genes encode unknown functions specific to group 4 capsule export. We have developed an expression system for the large-scale production of the outer membrane protein GfcD. Contrary to annotations, we find that GfcD is a non-acylated integral membrane protein. Circular dichroism spectroscopy, light-scattering data, and the HHomp server suggested that GfcD is a monomeric β-barrel with 26 β-strands and an internal globular domain. We identified a set of novel protein-protein interactions between GfcB, GfcC, and GfcD, both in vivo and in vitro, and quantified the binding properties with isothermal calorimetry and biolayer interferometry. GfcC and GfcB form a high-affinity heterodimer with a KD near 100 nM. This heterodimer binds to GfcD (KD = 28 μM) significantly better than either GfcB or GfcC alone. These gfc proteins may form a complex at the outer membrane for group 4 capsule secretion or for a yet unknown function.
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Affiliation(s)
- Matthew R. Larson
- Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Kassia Biddle
- Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Adam Gorman
- Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Sarah Boutom
- Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan, United States of America
- Program in Biophysics, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Ilan Rosenshine
- Dept of Microbiology and Molecular Genetics, Hebrew University Faculty of Medicine, Ein Kerem, Jerusalem, Israel
| | - Mark A. Saper
- Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan, United States of America
- Program in Biophysics, University of Michigan, Ann Arbor, Michigan, United States of America
- * E-mail:
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18
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Li YN, Ren HY, Zhao N, Wang YQ, Li D, Qin T. Phylogenetic Analysis of Legionella Strains and Identification of Serogroups by Lipopolysaccharide- and O-antigen- based PCR Assay. Biomed Environ Sci 2021; 34:483-488. [PMID: 34284856 DOI: 10.3967/bes2021.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 01/21/2021] [Indexed: 06/13/2023]
Affiliation(s)
- Yi Nan Li
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102249, China
| | - Hong Yu Ren
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102249, China
| | - Na Zhao
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102249, China
| | - Yan Qing Wang
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102249, China;Nanchang Center for Disease Control and Prevention, Nanchang 330100, Jiangxi, China
| | - Dai Li
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102249, China
| | - Tian Qin
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102249, China;Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310021, Jiangsu, China
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19
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Garcia‐Vello P, Di Lorenzo F, Lamprinaki D, Notaro A, Speciale I, Molinaro A, Juge N, De Castro C. Structure of the O-Antigen and the Lipid A from the Lipopolysaccharide of Fusobacterium nucleatum ATCC 51191. Chembiochem 2021; 22:1252-1260. [PMID: 33197108 PMCID: PMC8048906 DOI: 10.1002/cbic.202000751] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/14/2020] [Indexed: 01/26/2023]
Abstract
Fusobacterium nucleatum is a common member of the oral microbiota. However, this symbiont has been found to play an active role in disease development. As a Gram-negative bacterium, F. nucleatum has a protective outer membrane layer whose external leaflet is mainly composed of lipopolysaccharides (LPSs). LPSs play a crucial role in the interaction between bacteria and the host immune system. Here, we characterised the structure of the O-antigen and lipid A from F. nucleatum ssp. animalis ATCC 51191 by using a combination of GC-MS, MALDI and NMR techniques. The results revealed a novel repeat of the O-antigen structure of the LPS, [→4)-β-d-GlcpNAcA-(1→4)-β-d-GlcpNAc3NAlaA-(1→3)-α-d-FucpNAc4NR-(1→], (R=acetylated 60 %), and a bis-phosphorylated hexa-acylated lipid A moiety. Taken together these data showed that F. nucleatum ATCC 51191 has a distinct LPS which might differentially influence recognition by immune cells.
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Affiliation(s)
- Pilar Garcia‐Vello
- Departmentof Chemical SciencesUniversity of Naples Federico IIVia Cinthia, 2680126NapoliNAItaly
| | - Flaviana Di Lorenzo
- Departmentof Chemical SciencesUniversity of Naples Federico IIVia Cinthia, 2680126NapoliNAItaly
| | - Dimitra Lamprinaki
- Gut Microbes & Health Institute Strategic ProgrammeQuadram Institute BioscienceRosalind Franklin Road, Norwich Research ParkNorwichNR4 7UQUK
| | - Anna Notaro
- Departmentof Chemical SciencesUniversity of Naples Federico IIVia Cinthia, 2680126NapoliNAItaly
| | - Immacolata Speciale
- Department of Agricultural SciencesUniversity of Naples Federico IIVia Università, 10080055Portici NAItaly
| | - Antonio Molinaro
- Departmentof Chemical SciencesUniversity of Naples Federico IIVia Cinthia, 2680126NapoliNAItaly
| | - Nathalie Juge
- Gut Microbes & Health Institute Strategic ProgrammeQuadram Institute BioscienceRosalind Franklin Road, Norwich Research ParkNorwichNR4 7UQUK
| | - Cristina De Castro
- Department of Agricultural SciencesUniversity of Naples Federico IIVia Università, 10080055Portici NAItaly
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20
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Abstract
A variety of bacterial infections have been tackled by glycoconjugates over the recent years, and more vaccines are either under development at preclinical level or in clinical trials. So far, licensed glycoconjugate vaccines have made use of capsular polysaccharides or derived fragments. Today, many glycoconjugates are making use of other classes of sugars, in particular, the O-antigen portion of lipopolysaccharide molecules. Here, we report a simplified method for O-antigen extraction and purification that avoids the step of lipopolysaccharide isolation. Also, a selective chemistry for terminal linkage of O-antigen chains to a carrier protein is described, together with analytical methods for intermediates and final conjugate characterization.
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21
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Liu B, Furevi A, Perepelov AV, Guo X, Cao H, Wang Q, Reeves PR, Knirel YA, Wang L, Widmalm G. Structure and genetics of Escherichia coli O antigens. FEMS Microbiol Rev 2020; 44:655-683. [PMID: 31778182 PMCID: PMC7685785 DOI: 10.1093/femsre/fuz028] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 11/22/2019] [Indexed: 02/07/2023] Open
Abstract
Escherichia coli includes clonal groups of both commensal and pathogenic strains, with some of the latter causing serious infectious diseases. O antigen variation is current standard in defining strains for taxonomy and epidemiology, providing the basis for many serotyping schemes for Gram-negative bacteria. This review covers the diversity in E. coli O antigen structures and gene clusters, and the genetic basis for the structural diversity. Of the 187 formally defined O antigens, six (O31, O47, O67, O72, O94 and O122) have since been removed and three (O34, O89 and O144) strains do not produce any O antigen. Therefore, structures are presented for 176 of the 181 E. coli O antigens, some of which include subgroups. Most (93%) of these O antigens are synthesized via the Wzx/Wzy pathway, 11 via the ABC transporter pathway, with O20, O57 and O60 still uncharacterized due to failure to find their O antigen gene clusters. Biosynthetic pathways are given for 38 of the 49 sugars found in E. coli O antigens, and several pairs or groups of the E. coli antigens that have related structures show close relationships of the O antigen gene clusters within clades, thereby highlighting the genetic basis of the evolution of diversity.
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Affiliation(s)
- Bin Liu
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, 23 Hongda Street, TEDA, Tianjing 300457, China
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, 23 Hongda Street, TEDA, Tianjin 300457, China
- Tianjin Key Laboratory of Microbial Functional Genomics, 23 Hongda Street, TEDA, Tianjin 300457, China
| | - Axel Furevi
- Department of Organic Chemistry, Arrhenius Laboratory, Svante Arrhenius väg 16C, Stockholm University, S-106 91 Stockholm, Sweden
| | - Andrei V Perepelov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, Moscow, Russia
| | - Xi Guo
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, 23 Hongda Street, TEDA, Tianjing 300457, China
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, 23 Hongda Street, TEDA, Tianjin 300457, China
- Tianjin Key Laboratory of Microbial Functional Genomics, 23 Hongda Street, TEDA, Tianjin 300457, China
| | - Hengchun Cao
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, 23 Hongda Street, TEDA, Tianjing 300457, China
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, 23 Hongda Street, TEDA, Tianjin 300457, China
- Tianjin Key Laboratory of Microbial Functional Genomics, 23 Hongda Street, TEDA, Tianjin 300457, China
| | - Quan Wang
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, 23 Hongda Street, TEDA, Tianjing 300457, China
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, 23 Hongda Street, TEDA, Tianjin 300457, China
- Tianjin Key Laboratory of Microbial Functional Genomics, 23 Hongda Street, TEDA, Tianjin 300457, China
| | - Peter R Reeves
- School of Molecular and Microbial Bioscience, University of Sydney, 2 Butilin Ave, Darlington NSW 2008, Sydney, Australia
| | - Yuriy A Knirel
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, Moscow, Russia
| | - Lei Wang
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, 23 Hongda Street, TEDA, Tianjing 300457, China
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, 23 Hongda Street, TEDA, Tianjin 300457, China
- Tianjin Key Laboratory of Microbial Functional Genomics, 23 Hongda Street, TEDA, Tianjin 300457, China
| | - Göran Widmalm
- Department of Organic Chemistry, Arrhenius Laboratory, Svante Arrhenius väg 16C, Stockholm University, S-106 91 Stockholm, Sweden
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Maciejewska A, Bednarczyk B, Lugowski C, Lukasiewicz J. Structural Studies of the Lipopolysaccharide Isolated from Plesiomonas shigelloides O22:H3 (CNCTC 90/89). Int J Mol Sci 2020; 21:ijms21186788. [PMID: 32947917 PMCID: PMC7555982 DOI: 10.3390/ijms21186788] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/04/2020] [Accepted: 09/14/2020] [Indexed: 02/02/2023] Open
Abstract
Plesiomonas shigelloides is a Gram-negative, rod-shaped bacterium which causes foodborne intestinal infections, including gastroenteritis. It is one of the most frequent causes of travellers’ diarrhoea. Lipopolysaccharide (LPS, endotoxin), an important virulence factor of the species, is in most cases characterised by a smooth character, demonstrated by the presence of all regions, such as lipid A, core oligosaccharide, and O-specific polysaccharide, where the latter part determines O-serotype. P. shigelloides LPS is still a poorly characterised virulence factor considering a “translation” of the particular O-serotype into chemical structure. To date, LPS structure has only been elucidated for 15 strains out of 102 O-serotypes. Structures of the new O-specific polysaccharide and core oligosaccharide of P. shigelloides from the Czechoslovak National Collection of Type Cultures CNCTC 90/89 LPS (O22), investigated by chemical analysis, mass spectrometry, and 1H,13C nuclear magnetic resonance (NMR) spectroscopy, have now been reported. The pentasaccharide repeating unit of the O-specific polysaccharide is built of one d-QuipNAc and is rich in four d-GalpNAcAN residues. Moreover, the new core oligosaccharide shares common features of other P. shigelloides endotoxins, i.e., the lack of phosphate groups and the presence of uronic acids.
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23
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Ucieklak K, Koj S, Niedziela T. Bordetella holmesii Lipopolysaccharide Hide and Seek Game with Pertussis: Structural Analysis of the O-Specific Polysaccharide and the Core Oligosaccharide of the Type Strain ATCC 51541. Int J Mol Sci 2020; 21:E6433. [PMID: 32899371 PMCID: PMC7504554 DOI: 10.3390/ijms21176433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/26/2020] [Accepted: 08/28/2020] [Indexed: 11/16/2022] Open
Abstract
Whooping cough is a highly contagious disease caused predominantly by Bordetella pertussis, but it also comprises of a pertussis-like illness caused by B. holmesii. The virulence factors of B. holmesii and their role in the pathogenesis remain unknown. Lipopolysaccharide is the main surface antigen of all Bordetellae. Data on the structural features of the lipopolysaccharide (LPS) of B. holmesii are scarce. The poly- and oligosaccharide components released by mild acidic hydrolysis of the LPS were separated and investigated by 1H and 13C NMR spectroscopy, mass spectrometry, and chemical methods. The structures of the O-specific polysaccharide and the core oligosaccharide of B. holmesii ATCC 51541 have been identified for the first time. The novel pentasaccharide repeating unit of the B. holmesii O-specific polysaccharide has the following structure: {→2)-α-l-Rhap-(1→6)-α-d-Glcp-(1→4)-[β-d-GlcpNAc-(1→3]-α-d-Galp-(1→3)-α-d-GlcpNAc-(1→}n. The SDS-PAGE and serological cross-reactivities of the B. holmesii LPS suggested the similarity between the core oligosaccharides of B. holmesii ATCC 51541 and B. pertussis strain 606. The main oligosaccharide fraction contained a nonasaccharide. The comparative analysis of the NMR spectra of B. holmesii core oligosaccharide fraction with this of the B. pertussis strain 606 indicated that the investigated core oligosaccharides were identical.
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Affiliation(s)
| | | | - Tomasz Niedziela
- Hirszfeld Institute of Immunology and Experimental Therapy, 53-114 Wroclaw, Poland; (K.U.); (S.K.)
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24
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Zhu Q, Shen Z, Chiodo F, Nicolardi S, Molinaro A, Silipo A, Yu B. Chemical synthesis of glycans up to a 128-mer relevant to the O-antigen of Bacteroides vulgatus. Nat Commun 2020; 11:4142. [PMID: 32811831 PMCID: PMC7434892 DOI: 10.1038/s41467-020-17992-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 07/29/2020] [Indexed: 12/21/2022] Open
Abstract
Glycans are involved in various life processes and represent critical targets of biomedical developments. Nevertheless, the accessibility to long glycans with precise structures remains challenging. Here we report on the synthesis of glycans consisting of [→4)-α-Rha-(1 → 3)-β-Man-(1 → ] repeating unit, which are relevant to the O-antigen of Bacteroides vulgatus, a common component of gut microbiota. The optimal combination of assembly strategy, protecting group arrangement, and glycosylation reaction has enabled us to synthesize up to a 128-mer glycan. The synthetic glycans are accurately characterized by advanced NMR and MS approaches, the 3D structures are defined, and their potent binding activity with human DC-SIGN, a receptor associated with the gut lymphoid tissue, is disclosed.
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Affiliation(s)
- Qian Zhu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Zhengnan Shen
- School of Physical Science and Technology, ShanghaiTech University, 393 Huaxia Middle Road, Shanghai, 201210, China
| | - Fabrizio Chiodo
- Department of Molecular Cell Biology and Immunology, Amsterdam Infection and Immunity Institute, De Boelelaan 1108, 1081HZ, Amsterdam, The Netherlands
| | - Simone Nicolardi
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands
| | - Antonio Molinaro
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, 80126, Napoli, Italy
| | - Alba Silipo
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, 80126, Napoli, Italy.
| | - Biao Yu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China.
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-Lane Xiangshan, Hangzhou, 310024, China.
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25
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Siwińska M, Zabłotni A, Levina EA, Shashkov AS, Ovchinnikova OG, Różalski A, Knirel YA. The unique structure of bacterial polysaccharides - Immunochemical studies on the O-antigen of Proteus penneri 4034-85 clinical strain classified into a new O83 Proteus serogroup. Int J Biol Macromol 2020; 163:1168-1174. [PMID: 32652158 DOI: 10.1016/j.ijbiomac.2020.07.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 11/19/2022]
Abstract
The serological classification scheme of the opportunistic Proteus bacilli includes a number of Proteus penneri strains. The tested P. penneri 4034-85 strain turned out to be serologically distinguished in ELISA and Western blotting. The O-polysaccharide was obtained by mild acid degradation of the lipopolysaccharide of this strain and studied by sugar and methylation analyses and dephosphorylation along with 1H and 13C NMR spectroscopy, including 2D 1H,1H COSY, TOCSY, ROESY, 1H,13C HSQC, HMBC, and HSQC-TOCSY experiments, The O-polysaccharide was found to have a linear repeating unit containing glycerol 1-phosphate and two residues each of Gal and GlcNAc. The following O-polysaccharide structure was established, which, to our knowledge, is unique among known bacterial polysaccharide structures.
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Affiliation(s)
- Małgorzata Siwińska
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Agnieszka Zabłotni
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland.
| | - Evgeniya A Levina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991 Moscow, Russia; Higher Chemical College of the Russian Academy of Sciences, 125047 Moscow, Russia
| | - Alexander S Shashkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991 Moscow, Russia
| | - Olga G Ovchinnikova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991 Moscow, Russia
| | - Antoni Różalski
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Yuriy A Knirel
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991 Moscow, Russia
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26
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Kunstmann S, Engström O, Wehle M, Widmalm G, Santer M, Barbirz S. Increasing the Affinity of an O-Antigen Polysaccharide Binding Site in Shigella flexneri Bacteriophage Sf6 Tailspike Protein. Chemistry 2020; 26:7263-7273. [PMID: 32189378 PMCID: PMC7463171 DOI: 10.1002/chem.202000495] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/09/2020] [Indexed: 12/30/2022]
Abstract
Broad and unspecific use of antibiotics accelerates spread of resistances. Sensitive and robust pathogen detection is thus important for a more targeted application. Bacteriophages contain a large repertoire of pathogen-binding proteins. These tailspike proteins (TSP) often bind surface glycans and represent a promising design platform for specific pathogen sensors. We analysed bacteriophage Sf6 TSP that recognizes the O-polysaccharide of dysentery-causing Shigella flexneri to develop variants with increased sensitivity for sensor applications. Ligand polyrhamnose backbone conformations were obtained from 2D 1 H,1 H-trNOESY NMR utilizing methine-methine and methine-methyl correlations. They agreed well with conformations obtained from molecular dynamics (MD), validating the method for further predictions. In a set of mutants, MD predicted ligand flexibilities that were in good correlation with binding strength as confirmed on immobilized S. flexneri O-polysaccharide (PS) with surface plasmon resonance. In silico approaches combined with rapid screening on PS surfaces hence provide valuable strategies for TSP-based pathogen sensor design.
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Affiliation(s)
- Sonja Kunstmann
- Physikalische BiochemieUniversität PotsdamKarl-Liebknecht-Str. 24–2514476PotsdamGermany
- Theory and BiosystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Current address: Department of Biotechnology and BiomedicineTechnical University of DenmarkSøltofts Plads2800 Kgs.LyngbyDenmark
| | - Olof Engström
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Marko Wehle
- Theory and BiosystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
| | - Göran Widmalm
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Mark Santer
- Theory and BiosystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
| | - Stefanie Barbirz
- Physikalische BiochemieUniversität PotsdamKarl-Liebknecht-Str. 24–2514476PotsdamGermany
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27
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Bulyhina TV, Zdorovenko EL, Varbanets LD, Shashkov AS, Kadykova AA, Knirel YA, Lushchak OV. Structure of O-Polysaccharide and Lipid A of Pantoea Agglomerans 8488. Biomolecules 2020; 10:E804. [PMID: 32456025 PMCID: PMC7277085 DOI: 10.3390/biom10050804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 11/16/2022] Open
Abstract
The Pantoea agglomerans 8488 lipopolysaccharide (LPS) was isolated, purified and characterized by monosaccharide and fatty acid analysis. The O-polysaccharide and lipid A components of the LPS were separated by mild acid degradation. Lipid A was studied by electrospray ionization mass spectrometry (ESI-MS) and found to consist of hexa-, penta-, tetra- and tri-acylated species. Two-dimensional nuclear magnetic resonance (NMR) spectroscopy revealed the following structure of the O-polysaccharide repeating unit →3)-α-L-Rhap-(1→6)-α-D-Manp-(1→3)-α-L-Fucp-(1→3)-β-D-GlcNAcp-(1→. The LPS showed a low level of toxicity, was not pyrogenic, and reduced the adhesiveness index of microorganisms to 2.12, which was twofold less than the control. LPS modified by complex compounds of germanium (IV) and tin (IV) were obtained. It was found that six LPS samples modified by Sn compounds and two LPS samples modified by Ge compounds lost their toxic activity when administered to mice in a dose of LD50 (105 µg/mice or 5 mg/kg). However, none of the modified LPS samples changed their serological activity in an Ouchterlony double immunodiffusion test in agar.
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Affiliation(s)
- Tetiana V. Bulyhina
- D.K. Zabolotny Institute of Microbiology and Virology (IMV), The National Academy of Sciences, 154 Zabolotnoho Str., 03143 Kyiv, Ukraine
| | - Evelina L. Zdorovenko
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia; (E.L.Z.); (L.D.V.); (A.S.S.); (Y.A.K.)
| | - Ludmila D. Varbanets
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia; (E.L.Z.); (L.D.V.); (A.S.S.); (Y.A.K.)
| | - Alexander S. Shashkov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia; (E.L.Z.); (L.D.V.); (A.S.S.); (Y.A.K.)
| | - Alexandra A. Kadykova
- Higher Chemical College of the Russian Academy of Sciences, D.I. Mendeleev University of Chemical Technology of Russia, Moscow 125047, Russia;
| | - Yuriy A. Knirel
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia; (E.L.Z.); (L.D.V.); (A.S.S.); (Y.A.K.)
| | - Oleh V. Lushchak
- Department of Biochemistry and Biotechnology, Natural Sciences Institute, Vasyl Stefanyk Precarpathian National University, 76018 Ivano-Frankivsk, Ukraine;
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28
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Ravenscroft N, Braun M, Schneider J, Dreyer AM, Wetter M, Haeuptle MA, Kemmler S, Steffen M, Sirena D, Herwig S, Carranza P, Jones C, Pollard AJ, Wacker M, Kowarik M. Characterization and immunogenicity of a Shigella flexneri 2a O-antigen bioconjugate vaccine candidate. Glycobiology 2019; 29:669-680. [PMID: 31206156 PMCID: PMC6704370 DOI: 10.1093/glycob/cwz044] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 06/04/2019] [Accepted: 06/04/2019] [Indexed: 12/27/2022] Open
Abstract
Shigellosis remains a major cause of diarrheal disease in developing countries and causes substantial morbidity and mortality in children. Vaccination represents a promising preventive measure to fight the burden of the disease, but despite enormous efforts, an efficacious vaccine is not available to date. The use of an innovative biosynthetic Escherichia coli glycosylation system substantially simplifies the production of a multivalent conjugate vaccine to prevent shigellosis. This bioconjugation approach has been used to produce the Shigella dysenteriae type O1 conjugate that has been successfully tested in a phase I clinical study in humans. In this report, we describe a similar approach for the production of an additional serotype required for a broadly protective shigellosis vaccine candidate. The Shigella flexneri 2a O-polysaccharide is conjugated to introduced asparagine residues of the carrier protein exotoxin A (EPA) from Pseudomonas aeruginosa by co-expression with the PglB oligosaccharyltransferase. The bioconjugate was purified, characterized using physicochemical methods and subjected to preclinical evaluation in rats. The bioconjugate elicited functional antibodies as shown by a bactericidal assay for S. flexneri 2a. This study confirms the applicability of bioconjugation for the S. flexneri 2a O-antigen, which provides an intrinsic advantage over chemical conjugates due to the simplicity of a single production step and ease of characterization of the homogenous monomeric conjugate formed. In addition, it shows that bioconjugates are able to raise functional antibodies against the polysaccharide antigen.
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Affiliation(s)
- Neil Ravenscroft
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
| | - Martin Braun
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
| | - Joerg Schneider
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
| | - Anita M Dreyer
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
| | - Michael Wetter
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
| | - Micha A Haeuptle
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
| | - Stefan Kemmler
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
| | - Michael Steffen
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
| | - Dominique Sirena
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
| | - Stefan Herwig
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
| | - Paula Carranza
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
| | - Claire Jones
- Department of Paediatrics, University of Oxford, Oxford OX3 9DU, United Kingdom
| | - Andrew J Pollard
- Department of Paediatrics, University of Oxford, Oxford OX3 9DU, United Kingdom
| | - Michael Wacker
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
- Wacker Biotech Consulting AG, Obere Hönggerstrasse 9a, 8103 Unterengstringen, Switzerland
| | - Michael Kowarik
- LimmaTech Biologics AG, Grabenstrasse 3, 8952 Schlieren, Switzerland
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29
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Zdorovenko EL, Kadykova AA, Shashkov AS, Varbanets LD, Bulyhina TV. Pantoea agglomerans P1a lipopolysaccharide: Structure of the O-specific polysaccharide and lipid A and biological activity. Carbohydr Res 2019; 484:107767. [PMID: 31400668 DOI: 10.1016/j.carres.2019.107767] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/23/2019] [Accepted: 08/03/2019] [Indexed: 12/14/2022]
Abstract
O-specific polysaccharide and lipid A were obtained from the lipopolysaccharide from new strain of Рantoea agglomerans P1a by mild acid hydrolysis. It was found that the major form of lipid A presented by tetraacylated derivative containing biphosphorylated GlcN disaccharide, three 14:0 (3-OH) and 12:0 residues. The structure of the O-specific polysaccharide was established by chemical, NMR and computational methods: →3)-α-D-Manp-(1 → 4)-β-D-Fucp-(1 → 4)-ɑ-D-Fucp-(1→The LPS of Р. agglomerans P1a showed low level of toxicity and pyrogenicity to compare with LPS of E. coli O55:B5 and pyrogenal (respectively).
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Affiliation(s)
- Evelina L Zdorovenko
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991, Moscow, Russia.
| | - Alexandra A Kadykova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991, Moscow, Russia
| | - Alexander S Shashkov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991, Moscow, Russia
| | - Ludmila D Varbanets
- D.K. Zabolotny Institute of Microbiology and Virology of the National Academy of Sciences, 154 Zabolotnogo Str, 03143, Kiev, Ukraine
| | - Tetiana V Bulyhina
- D.K. Zabolotny Institute of Microbiology and Virology of the National Academy of Sciences, 154 Zabolotnogo Str, 03143, Kiev, Ukraine
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30
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Huo CX, Dhara D, Baliban SM, Tahmasebi Nick S, Tan Z, Simon R, Misra AK, Huang X. Synthetic and immunological studies of Salmonella Enteritidis O-antigen tetrasaccharides as potential anti-Salmonella vaccines. Chem Commun (Camb) 2019; 55:4519-4522. [PMID: 30924468 PMCID: PMC6525565 DOI: 10.1039/c8cc08622b] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first synthetic carbohydrate based potential anti-Salmonella Enteritidis vaccine has been developed by conjugating a synthetic tetrasaccharide antigen with bacteriophage Qβ. High levels of specific and long lasting anti-glycan IgG antibodies were induced by the conjugate, which completely protected mice from lethal bacterial challenges in a passive transfer model.
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Affiliation(s)
- Chang-Xin Huo
- Departments of Chemistry and Biomedical Engineering, Institute for Quantitative Health Science & Engineering, Michigan State University, 578 South Shaw Lane, East Lansing, MI 48824, USA.
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31
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Abstract
Bacterial polysaccharides that contain one amino group can be conjugated using squaric acid chemistry directly to a protein carrier. The conjugation is a two-step process consisting of labeling the polysaccharide with a squarate group and a reaction of the squarate formed with protein. The intermediate squarate derivative and the product glycoconjugate can be easily purified using centrifugal filtration devices. This method is experimentally simple and affords glycoconjugates with predictable carbohydrate-protein ratio (carbohydrate content), high conjugation efficiency, and excellent yield.
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Affiliation(s)
- Peng Xu
- Laboratory of Bioorganic Chemistry, National Institutes of Health, Bethesda, MD, USA
| | - Pavol Kováč
- Laboratory of Bioorganic Chemistry, National Institutes of Health, Bethesda, MD, USA.
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32
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Abstract
Escherichia coli serotype O104:H4 (ECO104) is a potent intestinal pathogen that causes severe bloody diarrhea and hemolytic-uremic syndrome. The O antigenic polysaccharides of ECO104 consist of repeating units with the structure [4Galα1-4Neu5,7,9Ac3α2-3Galβ1-3GalNAcβ1-]n. These repeating units are assembled sequentially by specific glycosyltransferases on a diphosphate-undecaprenol intermediate. Internal structures include mimics of the human T and sialyl-T antigen. This protocol describes the in vitro synthesis of the repeating unit by β1,3-Gal-transferase WbwC, α2,3-sialyltransferase WbwA, and α1,4-Gal-transferase WbwB. All of these enzymes require acceptor substrates based on GalNAc-diphosphate-lipid. These methods are applicable for the assembly of bacterial polysaccharides of gram-negative bacteria that require sugar-diphosphate intermediates and are a basis for vaccine synthesis.
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Affiliation(s)
- Inka Brockhausen
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada.
| | - Diana Czuchry
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
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Perepelov AV, Guo X, Filatov AV, Shashkov AS, Senchenkova SN, Li B. Structure elucidation and gene cluster annotation of the O-antigen of Vibrio cholerae O100 containing two rarely occurred amino sugar derivatives. Carbohydr Res 2018; 472:98-102. [PMID: 30530139 DOI: 10.1016/j.carres.2018.11.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 10/31/2018] [Accepted: 11/03/2018] [Indexed: 11/15/2022]
Abstract
O-polysaccharide (O-antigen) was isolated from the lipopolysaccharide of Vibrio cholerae O100 and studied by component analyses and 1D and 2D NMR spectroscopy. The following structure of the O-polysaccharide was established: →3)-β-d-QuipNAc4N(dHh)-(1 → 3)-α-d-Fucp4N(RHb)-(1 → 3)-α-l-FucpNAc-(1→ where Hb and dHh indicate 3-hydroxybutanoyl and 3,5-dihydroxyhexanoyl, respectively. The O-antigen gene cluster of V. cholerae O100 has been sequenced. The gene functions were tentatively assigned by comparison with sequences in the available databases and found to be in agreement with the OPS structure.
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Affiliation(s)
- Andrei V Perepelov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia.
| | - Xi Guo
- TEDA Institure of Biological Sciences and Biotechnology, Nankai University, TEDA, Tianjin, China
| | - Andrei V Filatov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Alexander S Shashkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Sofia N Senchenkova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Bin Li
- TEDA Institure of Biological Sciences and Biotechnology, Nankai University, TEDA, Tianjin, China
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Sarkar V, Mukhopadhyay B. Synthesis of the tetrasaccharide related to the repeating unit of the O-antigen from Azospirillum brasilense Jm125A2 in the form of its 2-aminoethyl glycoside. Carbohydr Res 2018; 470:13-18. [PMID: 30292926 DOI: 10.1016/j.carres.2018.09.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 09/26/2018] [Accepted: 09/26/2018] [Indexed: 01/11/2023]
Abstract
Total chemical synthesis of the linear tetrasaccharide repeating unit β-D-Glc-(1 → 2)-α-L-Rha-(1 → 3)-α-L-Rha-(1 → 2)-α-L-Rha-CH2CH2NH2 of the O-antigen from Azospirillum brasilense Jm125A2 is accomplished through rational protecting group manipulations of commercially available monosaccharides and stereoselective glycosylations. The target tetrasaccharide in the form of its 2-aminoethyl glycoside is obtained in ∼24% yield over 10 steps following a linear strategy. The structure is particularly suitable for further glycoconjugate formation through the terminal free amine without hampering the reducing end stereochemistry.
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Affiliation(s)
- Vikramjit Sarkar
- Sweet Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, Nadia, 741246, India
| | - Balaram Mukhopadhyay
- Sweet Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, Nadia, 741246, India.
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Védrine M, Berthault C, Leroux C, Répérant-Ferter M, Gitton C, Barbey S, Rainard P, Gilbert FB, Germon P. Sensing of Escherichia coli and LPS by mammary epithelial cells is modulated by O-antigen chain and CD14. PLoS One 2018; 13:e0202664. [PMID: 30142177 PMCID: PMC6108492 DOI: 10.1371/journal.pone.0202664] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 08/07/2018] [Indexed: 12/31/2022] Open
Abstract
Escherichia coli is one of the major pathogens causing mastitis in dairy cattle. Yet, the factors which mediate the ability for E. coli to develop in the bovine mammary gland remain poorly elucidated. In a mouse model, infections induced by the reference mastitis E. coli P4 showed a strong colonisation of the mammary gland, while this strain had a low stimulating power on cells of the PS bovine mammary epithelial cell line. In order to understand if such a reduced response contributes to the severity of infection, a library of random mutants of P4 strain was screened to identify mutants inducing stronger response of PS cells. Among hyper-stimulating mutants, six were altered in genes involved in biosynthesis of lipopolysaccharide (LPS) and had lost their O-polysaccharide region, suggesting that the presence of O-antigen impairs the response of PS cells to LPS. Using purified smooth (S) and rough (R) fractions of LPS, we showed that the R-LPS fraction induced a stronger response from PS cells than the smooth LPS fraction. Biological activity of the S-LPS fraction could be restored by the addition of recombinant bovine CD14 (rbCD14), indicating a crucial role of CD14 in the recognition of S-LPS by Mammary Epithelial Cells (MEC). When S-LPS and R-LPS were injected in udder quarters of healthy lactating cows, an inflammation developed in all infused quarters, but the S-LPS induced a more intense pro-inflammatory response, possibly in relation to sizeable concentrations of CD14 in milk. Altogether, our results demonstrate that the O-antigen modulates the pro-inflammatory response of MEC to LPS, that S-LPS and R-LPS trigger different responses of MEC and that these responses depend on the presence of CD14.
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Affiliation(s)
- Mégane Védrine
- ISP UMR 1282, INRA, Université François Rabelais de Tours, Nouzilly, France
| | - Camille Berthault
- ISP UMR 1282, INRA, Université François Rabelais de Tours, Nouzilly, France
| | - Cindy Leroux
- ISP UMR 1282, INRA, Université François Rabelais de Tours, Nouzilly, France
| | | | - Christophe Gitton
- ISP UMR 1282, INRA, Université François Rabelais de Tours, Nouzilly, France
| | - Sarah Barbey
- UE 0326 Domaine Expérimental du Pin-Au-Haras, INRA, Le-Pin-Au-Haras, France
| | - Pascal Rainard
- ISP UMR 1282, INRA, Université François Rabelais de Tours, Nouzilly, France
| | | | - Pierre Germon
- ISP UMR 1282, INRA, Université François Rabelais de Tours, Nouzilly, France
- * E-mail:
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Kunstmann S, Scheidt T, Buchwald S, Helm A, Mulard LA, Fruth A, Barbirz S. Bacteriophage Sf6 Tailspike Protein for Detection of Shigella flexneri Pathogens. Viruses 2018; 10:E431. [PMID: 30111705 PMCID: PMC6116271 DOI: 10.3390/v10080431] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/26/2018] [Accepted: 08/09/2018] [Indexed: 12/30/2022] Open
Abstract
Bacteriophage research is gaining more importance due to increasing antibiotic resistance. However, for treatment with bacteriophages, diagnostics have to be improved. Bacteriophages carry adhesion proteins, which bind to the bacterial cell surface, for example tailspike proteins (TSP) for specific recognition of bacterial O-antigen polysaccharide. TSP are highly stable proteins and thus might be suitable components for the integration into diagnostic tools. We used the TSP of bacteriophage Sf6 to establish two applications for detecting Shigella flexneri (S. flexneri), a highly contagious pathogen causing dysentery. We found that Sf6TSP not only bound O-antigen of S. flexneri serotype Y, but also the glucosylated O-antigen of serotype 2a. Moreover, mass spectrometry glycan analyses showed that Sf6TSP tolerated various O-acetyl modifications on these O-antigens. We established a microtiter plate-based ELISA like tailspike adsorption assay (ELITA) using a Strep-tag®II modified Sf6TSP. As sensitive screening alternative we produced a fluorescently labeled Sf6TSP via coupling to an environment sensitive dye. Binding of this probe to the S. flexneri O-antigen Y elicited a fluorescence intensity increase of 80% with an emission maximum in the visible light range. The Sf6TSP probes thus offer a promising route to a highly specific and sensitive bacteriophage TSP-based Shigella detection system.
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Affiliation(s)
- Sonja Kunstmann
- Physical Biochemistry, University of Potsdam, 14476 Potsdam, Germany.
| | - Tom Scheidt
- Physical Biochemistry, University of Potsdam, 14476 Potsdam, Germany.
| | - Saskia Buchwald
- Physical Biochemistry, University of Potsdam, 14476 Potsdam, Germany.
| | - Alexandra Helm
- Physical Biochemistry, University of Potsdam, 14476 Potsdam, Germany.
| | - Laurence A Mulard
- Institut Pasteur, Unité de Chimie des Biomolécules, 28 rue du Roux, 75015 Paris, France.
- CNRS UMR 3523, Institut Pasteur, 75015 Paris, France.
| | - Angelika Fruth
- National Reference Centre for Salmonella and other Bacterial Enterics, Robert Koch Institute, 38855 Wernigerode, Germany.
| | - Stefanie Barbirz
- Physical Biochemistry, University of Potsdam, 14476 Potsdam, Germany.
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Salman M, St Michael F, Ali A, Jabbar A, Cairns C, Hayes AC, Rahman M, Iqbal M, Haque A, Cox AD. First characterization of immunogenic conjugates of Vi negative Salmonella Typhi O-specific polysaccharides with rEPA protein for vaccine development. J Immunol Methods 2017; 450:27-33. [PMID: 28735760 DOI: 10.1016/j.jim.2017.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 07/17/2017] [Accepted: 07/17/2017] [Indexed: 10/19/2022]
Abstract
Efficacious typhoid vaccines for young children will significantly reduce the disease burden in developing world. The Vi polysaccharide based conjugate vaccines (Vi-rEPA) against Salmonella Typhi Vi positive strains has shown high efficacy but may be ineffective against Vi negative S. Typhi. In this study, for the first time, we report the synthesis and evaluation of polysaccharide-protein conjugates of Vi negative S. Typhi as potential vaccine candidates. Four different conjugates were synthesized using recombinant exoprotein A of Pseudomonas aeruginosa (rEPA) and human serum albumin (HSA) as the carrier proteins, using either direct reductive amination or an intermediate linker molecule, adipic acid dihydrazide (ADH). Upon injection into mice, a significantly higher antibody titer was observed in mice administrated with conjugate-1 (OSP-HSA) (P=0.0001) and conjugate 2 (OSP-rEPA) (P≤0.0001) as compared to OSP alone. In contrast, the antibody titer elicited by conjugate 3 (OSPADH-HSA) and conjugate 4 (OSPADH-rEPA) were insignificant (P=0.1684 and P=0.3794, respectively). We conclude that reductive amination is the superior method to prepare the S. Typhi OSP glycoconjugate. Moreover, rEPA was a better carrier protein than HSA. Thus OSP-rEPA conjugate seems to be efficacious typhoid vaccines candidate, it may be evaluated further and recommended for the clinical trials.
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Affiliation(s)
- M Salman
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, Canada; Health Biotechnology Division, National Institute for Biotechnology, Faisalabad, Pakistan; Department of Microbiology and Biotechnology, Abasyn University, Peshawar, Pakistan.
| | - F St Michael
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, Canada
| | - A Ali
- Health Biotechnology Division, National Institute for Biotechnology, Faisalabad, Pakistan
| | - A Jabbar
- Department of Biotechnology, Mirpur University of Science & Technology (MUST), Mirpur, AJK, Pakistan
| | - C Cairns
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, Canada
| | - A C Hayes
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, Canada
| | - M Rahman
- Health Biotechnology Division, National Institute for Biotechnology, Faisalabad, Pakistan
| | - M Iqbal
- Health Biotechnology Division, National Institute for Biotechnology, Faisalabad, Pakistan
| | - A Haque
- Faculty of Life Sciences, University of Faisalabad, Faisalabad, Pakistan
| | - A D Cox
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, Canada.
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Pawlak A, Rybka J, Dudek B, Krzyżewska E, Rybka W, Kędziora A, Klausa E, Bugla-Płoskońska G. Salmonella O48 Serum Resistance is Connected with the Elongation of the Lipopolysaccharide O-Antigen Containing Sialic Acid. Int J Mol Sci 2017; 18:E2022. [PMID: 28934165 PMCID: PMC5666704 DOI: 10.3390/ijms18102022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 09/09/2017] [Accepted: 09/12/2017] [Indexed: 12/27/2022] Open
Abstract
Complement is one of the most important parts of the innate immune system. Some bacteria can gain resistance against the bactericidal action of complement by decorating their outer cell surface with lipopolysaccharides (LPSs) containing a very long O-antigen or with specific outer membrane proteins. Additionally, the presence of sialic acid in the LPS molecules can provide a level of protection for bacteria, likening them to human cells, a phenomenon known as molecular mimicry. Salmonella O48, which contains sialic acid in the O-antigen, is the major cause of reptile-associated salmonellosis, a worldwide public health problem. In this study, we tested the effect of prolonged exposure to human serum on strains from Salmonella serogroup O48, specifically on the O-antigen length. After multiple passages in serum, three out of four tested strains became resistant to serum action. The gas-liquid chromatography/tandem mass spectrometry analysis showed that, for most of the strains, the average length of the LPS O-antigen increased. Thus, we have discovered a link between the resistance of bacterial cells to serum and the elongation of the LPS O-antigen.
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Affiliation(s)
- Aleksandra Pawlak
- Department of Microbiology, Institute of Genetics and Microbiology, University of Wrocław, 51-148 Wrocław, Poland.
| | - Jacek Rybka
- Department of Immunology of Infectious Diseases, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland.
| | - Bartłomiej Dudek
- Department of Microbiology, Institute of Genetics and Microbiology, University of Wrocław, 51-148 Wrocław, Poland.
| | - Eva Krzyżewska
- Department of Immunology of Infectious Diseases, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland.
| | - Wojciech Rybka
- Department of Immunology of Infectious Diseases, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland.
| | - Anna Kędziora
- Department of Microbiology, Institute of Genetics and Microbiology, University of Wrocław, 51-148 Wrocław, Poland.
| | - Elżbieta Klausa
- Regional Centre of Transfusion Medicine and Blood Bank, 50-345 Wrocław, Poland.
| | - Gabriela Bugla-Płoskońska
- Department of Microbiology, Institute of Genetics and Microbiology, University of Wrocław, 51-148 Wrocław, Poland.
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Sizova OV, Kondakova AN, Shashkov AS, Knirel YA, Shaikhutdinova RZ, Ivanov SA, Platonov ME, Hurst MRH, Dentovskaya SV. Structure and gene cluster of a tyvelose-containing O-polysaccharide of an entomopathogenic bacterium Yersinia entomophaga MH96 T related to Yersinia pseudotuberculosis. Carbohydr Res 2017; 445:93-97. [PMID: 28460348 DOI: 10.1016/j.carres.2017.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 03/31/2017] [Accepted: 04/13/2017] [Indexed: 11/18/2022]
Abstract
An O-polysaccharide was isolated from the lipopolysaccharide of an entomopathogenic bacterium Yersinia entomophaga MH96T by mild acid hydrolysis and studied by 2D NMR spectroscopy. The following structure of the branched tetrasaccharide repeating unit of the polysaccharide was established: where Tyv indicates 3,6-dideoxy-d-arabino-hexose (tyvelose). The structure established is consistent with the gene content of the O-antigen gene cluster. The O-polysaccharide structure and gene cluster of Y. entomophaga are related to those of some Y. pseudotuberculosis serotypes.
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Affiliation(s)
- O V Sizova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russian Federation
| | - A N Kondakova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russian Federation
| | - A S Shashkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russian Federation
| | - Y A Knirel
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russian Federation
| | - R Z Shaikhutdinova
- State Research Center for Applied Microbiology and Biotechnology, 142279, Obolensk, Moscow Region, Russian Federation
| | - S A Ivanov
- State Research Center for Applied Microbiology and Biotechnology, 142279, Obolensk, Moscow Region, Russian Federation
| | - M E Platonov
- State Research Center for Applied Microbiology and Biotechnology, 142279, Obolensk, Moscow Region, Russian Federation
| | - M R H Hurst
- Forage Science, AgResearch, Lincoln Research Centre, Christchurch, 8140, New Zealand; Bio-Protection Research Centre, Lincoln, Christchurch, 8140, New Zealand
| | - S V Dentovskaya
- State Research Center for Applied Microbiology and Biotechnology, 142279, Obolensk, Moscow Region, Russian Federation.
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40
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Vinogradov E, St Michael F, Homma K, Sharma A, Cox AD. Structure of the LPS O-chain from Fusobacterium nucleatum strain 10953, containing sialic acid. Carbohydr Res 2017; 440-441:38-42. [PMID: 28199859 DOI: 10.1016/j.carres.2017.01.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 01/26/2017] [Accepted: 01/26/2017] [Indexed: 01/09/2023]
Abstract
Fusobacterium nucleatum is an anaerobic bacterium found in the human mouth where it causes periodontitis. Recently, it has been gaining attention as a potential causative agent for colorectal cancer and is strongly linked with pregnancy complications including pre-term and still births. Little is known about virulence factors of this organism and thus we have initiated studies to examine the bacterial surface glycochemistry. Consistent with a recent paper suggesting that F. nucleatum strain 10593 can synthesize sialic acid, a staining technique identified sialic acid on the bacterial surface. We isolated lipopolysaccharide from this F. nucleatum strain and performed structural analysis on the O-antigen. Our studies identified a trisaccharide repeating unit of the O-antigen with the following structure: -[→4)-α-Neup5Ac-(2 → 4)-β-d-Galp-(1 → 3)-α-d-FucpNAc4NAc-(1-]- where Ac indicates 4-N-acetylation of ∼30% FucNAc4N residues. The presence of sialic acid as a constituent of the O-antigen is consistent with recent data identifying de novo sialic acid synthesis in this strain.
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Affiliation(s)
- Evgeny Vinogradov
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, ON, K1A 0R6, Canada.
| | - Frank St Michael
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, ON, K1A 0R6, Canada
| | - Kiyonobu Homma
- Department of Oral Biology, University at Buffalo, Buffalo, NY, 14214, USA
| | - Ashu Sharma
- Department of Oral Biology, University at Buffalo, Buffalo, NY, 14214, USA
| | - Andrew D Cox
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, ON, K1A 0R6, Canada
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Drzewiecka D, Arbatsky NP, Kondakova AN, Shashkov AS, Knirel YA. Structures and serospecificity of threonine-containing O polysaccharides of two clinical isolates belonging to the genus Proteus and their classification into O11 subserogroups. J Med Microbiol 2016; 65:1260-1266. [PMID: 27902374 DOI: 10.1099/jmm.0.000360] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Two clinical isolates from Polish patients, Proteus mirabilis 9B-m and Proteus genomospecies 3J-r, were found to be serologically related to P mirabilis O11. However, serological studies involving ELISA and Western blotting methods, using lipopolysaccharides (LPSs) extracted from the strains as antigens and native or adsorbed rabbit polyclonal O antisera, specific to the studied strains, revealed slight differences in the cross-reactivity and specificity of the two studied Proteus isolates, when compared to P. mirabilis O11. Two different O polysaccharides containing N-(d-galacturonoyl)-l-threonine were isolated from the LPSs of the isolates. Their structures were determined by chemical analysis and NMR spectroscopy and found to be related to the P. mirabilis O11 antigen structure established earlier, the 9B-m structure differing in the absence of the lateral glucose residue and the 3J-r structure in non-stoichiometric O-acetylation of the threonine residue only. Thus, the Proteus O11 serogroup should be divided into two subgroups: O11a, represented by the 9B-m isolate and O11a, b possessing the additional b epitope, containing the lateral residue of glucose and formed by the 3J-r isolate as well as P. mirabilis 25/57 belonging to O11 serogroup so far. O11a is the sixth new serotype found in Proteus spp. strains recently isolated from patients in central Poland.
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Affiliation(s)
- Dominika Drzewiecka
- Department of General Microbiology, Institute of Microbiology, Biotechnology and Immunology, University of Łódź, Banacha 12/16, 90-237 Łódź, Poland
| | - Nikolay P Arbatsky
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt, 47, 119991 Moscow, Russia
| | - Anna N Kondakova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt, 47, 119991 Moscow, Russia
| | - Alexander S Shashkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt, 47, 119991 Moscow, Russia
| | - Yuriy A Knirel
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt, 47, 119991 Moscow, Russia
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Karlsson SL, Thomson N, Mutreja A, Connor T, Sur D, Ali M, Clemens J, Dougan G, Holmgren J, Lebens M. Retrospective Analysis of Serotype Switching of Vibrio cholerae O1 in a Cholera Endemic Region Shows It Is a Non-random Process. PLoS Negl Trop Dis 2016; 10:e0005044. [PMID: 27706170 PMCID: PMC5051702 DOI: 10.1371/journal.pntd.0005044] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 09/15/2016] [Indexed: 01/29/2023] Open
Abstract
Genomic data generated from clinical Vibrio cholerae O1 isolates collected over a five year period in an area of Kolkata, India with seasonal cholera outbreaks allowed a detailed genetic analysis of serotype switching that occurred from Ogawa to Inaba and back to Ogawa. The change from Ogawa to Inaba resulted from mutational disruption of the methyltransferase encoded by the wbeT gene. Re-emergence of the Ogawa serotype was found to result either from expansion of an already existing Ogawa clade or reversion of the mutation in an Inaba clade. Our data suggests that such transitions are not random events but rather driven by as yet unidentified selection mechanisms based on differences in the structure of the O1 antigen or in the serotype-determining wbeT gene. Cholera is a major health problem in many parts of the world causing seasonal outbreaks in endemic areas. Essentially only the O1 serogroup of Vibrio cholerae causes epidemic cholera. This serogroup has two immunologically distinguishable serotype variants called Ogawa and Inaba. The Inaba serotype is a consequence of a mutation in a single gene, wbeT, that in its intact form encodes for an enzyme that methylates the terminal perosamine sugar of the lipopolysaccharide side chain thus resulting in the Ogawa serotype. By careful examination over a five-year period of the genetic lineages of bacteria causing cholera in an endemic area we show data indicating that serotype switching is not a random process but is driven by selection pressures that have yet to be identified.
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Affiliation(s)
- Stefan L. Karlsson
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Nicholas Thomson
- Wellcome Trust Sanger Institute, Cambridge, United Kingdom
- Department of Pathogen Molecular Biology, the London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Ankur Mutreja
- Wellcome Trust Sanger Institute, Cambridge, United Kingdom
| | | | - Dipika Sur
- Indian Council of Medical Research, New Delhi, India
| | - Mohammad Ali
- Johns Hopkins Bloomberg School of Public Health, Maryland, Baltimore, United States of America
| | - John Clemens
- International Centre for Diarrhoeal Disease Research, Dhaka, Dhaka Bangladesh
| | - Gordon Dougan
- Wellcome Trust Sanger Institute, Cambridge, United Kingdom
| | - Jan Holmgren
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Michael Lebens
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
- * E-mail:
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Barker JH, Kaufman JW, Apicella MA, Weiss JP. Evidence Suggesting That Francisella tularensis O-Antigen Capsule Contains a Lipid A-Like Molecule That Is Structurally Distinct from the More Abundant Free Lipid A. PLoS One 2016; 11:e0157842. [PMID: 27326857 PMCID: PMC4915664 DOI: 10.1371/journal.pone.0157842] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 06/06/2016] [Indexed: 01/13/2023] Open
Abstract
Francisella tularensis, the Gram-negative bacterium that causes tularemia, produces a high molecular weight capsule that is immunologically distinct from Francisella lipopolysaccharide but contains the same O-antigen tetrasaccharide. To pursue the possibility that the capsule of Francisella live vaccine strain (LVS) has a structurally unique lipid anchor, we have metabolically labeled Francisella with [14C]acetate to facilitate highly sensitive compositional analysis of capsule-associated lipids. Capsule was purified by two independent methods and yielded similar results. Autoradiographic and immunologic analysis confirmed that this purified material was largely devoid of low molecular weight LPS and of the copious amounts of free lipid A that the Francisellae accumulate. Chemical hydrolysis yielded [14C]-labeled free fatty acids characteristic of Francisella lipid A but with a different molar ratio of 3-OH C18:0 to 3-OH C16:0 and different composition of non-hydroxylated fatty acids (mainly C14:0 rather than C16:0) than that of free Francisella lipid A. Mild acid hydrolysis to induce selective cleavage of KDO-lipid A linkage yielded a [14C]-labeled product that partitioned during Bligh/Dyer extraction and migrated during thin-layer chromatography like lipid A. These findings suggest that the O-antigen capsule of Francisella contains a covalently linked and structurally distinct lipid A species. The presence of a discrete lipid A-like molecule associated with capsule raises the possibility that Francisella selectively exploits lipid A structural heterogeneity to regulate synthesis, transport, and stable bacterial surface association of the O-antigen capsular layer.
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Affiliation(s)
- Jason H. Barker
- Inflammation Program and Department of Internal Medicine, University of Iowa, Iowa City, IA, United States of America, and Veterans Affairs Medical Center, Iowa City, IA, United States of America
- * E-mail:
| | - Justin W. Kaufman
- Inflammation Program and Department of Internal Medicine, University of Iowa, Iowa City, IA, United States of America, and Veterans Affairs Medical Center, Iowa City, IA, United States of America
| | - Michael A. Apicella
- Inflammation Program and Department of Microbiology, University of Iowa, Iowa City, IA, United States of America, and Veterans Affairs Medical Center, Iowa City, IA, United States of America
| | - Jerrold P. Weiss
- Inflammation Program and Department of Microbiology, University of Iowa, Iowa City, IA, United States of America, and Veterans Affairs Medical Center, Iowa City, IA, United States of America
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Shashkov AS, Zhang W, Perepelov AV, Weintraub A, Liu B, Widmalm G, Knirel YA. Structure of the O-polysaccharide of Escherichia coli O132. Carbohydr Res 2016; 427:44-7. [PMID: 27101383 DOI: 10.1016/j.carres.2016.03.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 03/20/2016] [Indexed: 11/19/2022]
Abstract
Mild acid degradation of the lipopolysaccharide of Escherichia coli O132 released its O-polysaccharide. Analysis by 1D and 2D (1)H and (13)C NMR spectroscopy prior and subsequent to O-deacetylation, in conjunction with sugar analysis, revealed a linear pentasaccharide repeating unit of the O-polysaccharide having the following structure: →2)-α-d-Galf-(1→3)-α-l-Rhap2Ac-(1→4)-α-d-Glcp-(1→2)-α-l-Rhap-(1→3)-β-d-GlcpNAc-(1→ Putative functions of genes in the O-antigen gene cluster of E. coli O132 are consistent with the O-polysaccharide structure.
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Affiliation(s)
- Alexander S Shashkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation
| | - Wenwen Zhang
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, TEDA, 300457 Tianjin, China
| | - Andrei V Perepelov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation.
| | - Andrej Weintraub
- Department of Laboratory Medicine, Division of Clinical Microbiology, Karolinska Institute, Karolinska University Hospital, S-141 86 Stockholm, Sweden
| | - Bin Liu
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, TEDA, 300457 Tianjin, China
| | - Göran Widmalm
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
| | - Yuriy A Knirel
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation
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Kenyon JJ, Duda KA, De Felice A, Cunneen MM, Molinaro A, Laitinen J, Skurnik M, Holst O, Reeves PR, De Castro C. Serotype O:8 isolates in the Yersinia pseudotuberculosis complex have different O-antigen gene clusters and produce various forms of rough LPS. Innate Immun 2016; 22:205-17. [PMID: 26873504 DOI: 10.1177/1753425916631403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 01/13/2016] [Indexed: 11/15/2022] Open
Abstract
In Yersinia pseudotuberculosis complex, the O-antigen of LPS is used for the serological characterization of strains, and 21 serotypes have been identified to date. The O-antigen biosynthesis gene cluster and corresponding O-antigen structure have been described for 18, leaving O:8, O:13 and O:14 unresolved. In this study, two O:8 isolates were examined. The O-antigen gene cluster sequence of strain 151 was near identical to serotype O:4a, though a frame-shift mutation was found in ddhD, while No. 6 was different to 151 and carried the O:1b gene cluster. Structural analysis revealed that No. 6 produced a deeply truncated LPS, suggesting a mutation within the waaF gene. Both ddhD and waaF were cloned and expressed in 151 and No. 6 strains, respectively, and it appeared that expression of ddhD gene in strain 151 restored the O-antigen on LPS, while waaF in No. 6 resulted in an LPS truncated less severely but still without the O-antigen, suggesting that other mutations occurred in this strain. Thus, both O:8 isolates were found to be spontaneous O-antigen-negative mutants derived from other validated serotypes, and we propose to remove this serotype from the O-serotyping scheme, as the O:8 serological specificity is not based on the O-antigen.
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Affiliation(s)
- Johanna J Kenyon
- School of Molecular Bioscience, University of Sydney, Sydney, NSW, Australia
| | - Katarzyna A Duda
- Division of Structural Biochemistry, Research Center Borstel, Leibniz-Center for Medicine and Biosciences, Borstel, Germany
| | - Antonia De Felice
- Department of Chemical Sciences, University of Napoli, Napoli, Italy
| | - Monica M Cunneen
- School of Molecular Bioscience, University of Sydney, Sydney, NSW, Australia
| | - Antonio Molinaro
- Department of Chemical Sciences, University of Napoli, Napoli, Italy
| | - Juha Laitinen
- Department of Bacteriology and Immunology, Medicum, and Research Programs Unit, Immunobiology, University of Helsinki, Helsinki, Finland
| | - Mikael Skurnik
- Department of Bacteriology and Immunology, Medicum, and Research Programs Unit, Immunobiology, University of Helsinki, Helsinki, Finland Helsinki University Central Hospital Laboratory Diagnostics, Helsinki, Finland
| | - Otto Holst
- Division of Structural Biochemistry, Research Center Borstel, Leibniz-Center for Medicine and Biosciences, Borstel, Germany
| | - Peter R Reeves
- School of Molecular Bioscience, University of Sydney, Sydney, NSW, Australia
| | - Cristina De Castro
- Department of Agriculture Sciences, University of Napoli, Portici, Italy
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Abstract
Elucidation of the O-specific polysaccharide chain of lipopolysaccharide (LPS) from Rickettsia typhi, the etiological agent of endemic typhus, is described. Structural information was established by a combination of monosaccharide and methylation analyses of the O-chain, and by mass (MS) and nuclear magnetic resonance (NMR) spectrometries of oligosaccharides arised through its hydrofluoric (HF) acid degradation. Based on the combined data from these experiments, two major polymer populations of the O-specific chain have been determined with the following structural features: α-L-QuiNAc-(1→4)-[α-D-Glc-(1→3)-α-L-QuiNAc-(1→4)]n-α-D-Glc-(1→4)-α-D-Glc→, α-D-Glc-(1→3)-α-L-QuiNAc-(1→4)-[α-D-Glc-(1→3)-α-L-QuiNAc-(1→4)]n-α-D-Glc→. The linear backbone is most probably flanked with short side chains of D-GlcNAc-(1→3)-α-L-QuiNAc-(1→3)-D-GlcNAc→ that are attached to it via L-QuiNAc as a branching point. It is suggested that a dimer α-L-QuiNAc-(1→3)-α-D-GlcNAc may represent a common epitope in the O-antigens of Proteus vulgaris OX19 and R. typhi responsible for the observed serological cross-reactivity.
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Guo X, Senchenkova SN, Shashkov AS, Perepelov AV, Liu B, Knirel YA. Structure and gene cluster of the o-antigen of Escherichia coli o96. Carbohydr Res 2015; 420:1-5. [PMID: 26706815 DOI: 10.1016/j.carres.2015.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 11/12/2015] [Indexed: 11/17/2022]
Abstract
Mild acid degradation of the lipopolysaccharide of Escherichia coli O96 afforded a mixture of two polysaccharides. The following structure of the pentasaccharide repeating unit of the major polymer was established by sugar analysis, Smith degradation, and (1)H and (13)C NMR spectroscopy: [Formula: see text]. The O-antigen gene cluster of E. coli O96 between conserved galF and gnd genes was found to be consistent with this structure, and hence, the major polysaccharide represents the O96-antigen. The O96-antigen structure and gene cluster are similar to those of E. coli O170, and two proteins encoded in the gene clusters of both bacteria were putatively assigned a function of galactofuranosyltransferases. The minor polymer has the same structure as a peptidoglycan-related polysaccharide reported earlier in Providencia alcalifeciens O45 and several other O-serogoups of this species (Ovchinnikova OG, Liu B, Kocharova NA, Shashkov AS, Kondakova AN, Siwinska M, Feng L, Rozalski A, Wang L, Knirel YA. Biochemistry (Moscow) 2012;77:609-15) → 4)-β-D-GlcpNAc-(1 → 4)-β-D-GlcpNAc3(Rlac-lAla)-(1 → where Rlac-lAla indicates (R)-1-[(S)-1-carboxyethylaminocarbonyl]ethyl.
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Affiliation(s)
- Xi Guo
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, TEDA, 300457 Tianjin, China
| | - Sof'ya N Senchenkova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alexander S Shashkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Andrei V Perepelov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia.
| | - Bin Liu
- TEDA Institute of Biological Sciences and Biotechnology, Nankai University, TEDA, 300457 Tianjin, China
| | - Yuriy A Knirel
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
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Cota I, Sánchez-Romero MA, Hernández SB, Pucciarelli MG, García-del Portillo F, Casadesús J. Epigenetic Control of Salmonella enterica O-Antigen Chain Length: A Tradeoff between Virulence and Bacteriophage Resistance. PLoS Genet 2015; 11:e1005667. [PMID: 26583926 PMCID: PMC4652898 DOI: 10.1371/journal.pgen.1005667] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 10/25/2015] [Indexed: 12/21/2022] Open
Abstract
The Salmonella enterica opvAB operon is a horizontally-acquired locus that undergoes phase variation under Dam methylation control. The OpvA and OpvB proteins form intertwining ribbons in the inner membrane. Synthesis of OpvA and OpvB alters lipopolysaccharide O-antigen chain length and confers resistance to bacteriophages 9NA (Siphoviridae), Det7 (Myoviridae), and P22 (Podoviridae). These phages use the O-antigen as receptor. Because opvAB undergoes phase variation, S. enterica cultures contain subpopulations of opvABOFF and opvABON cells. In the presence of a bacteriophage that uses the O-antigen as receptor, the opvABOFF subpopulation is killed and the opvABON subpopulation is selected. Acquisition of phage resistance by phase variation of O-antigen chain length requires a payoff: opvAB expression reduces Salmonella virulence. However, phase variation permits resuscitation of the opvABOFF subpopulation as soon as phage challenge ceases. Phenotypic heterogeneity generated by opvAB phase variation thus preadapts Salmonella to survive phage challenge with a fitness cost that is transient only.
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Affiliation(s)
- Ignacio Cota
- Departamento de Genética, Facultad de Biología, Universidad de Sevilla, Sevilla, Spain
| | | | - Sara B. Hernández
- Departamento de Genética, Facultad de Biología, Universidad de Sevilla, Sevilla, Spain
| | - M. Graciela Pucciarelli
- Centro Nacional de Biotecnología (CNB-CSIC), Madrid, Spain
- Departamento de Biología Molecular, Universidad Autónoma de Madrid, Centro de Biología Molecular Severo Ochoa (CBMSO-CSIC), Madrid, Spain
| | | | - Josep Casadesús
- Departamento de Genética, Facultad de Biología, Universidad de Sevilla, Sevilla, Spain
- * E-mail:
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Sigida EN, Fedonenko YP, Shashkov AS, Zdorovenko EL, Konnova SA, Ignatov VV, Knirel YA. Structure of the polysaccharides from the lipopolysaccharide of Azospirillum brasilense Jm125A2. Carbohydr Res 2015; 416:37-40. [PMID: 26343325 DOI: 10.1016/j.carres.2015.08.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 08/21/2015] [Accepted: 08/22/2015] [Indexed: 12/21/2022]
Abstract
Two polysaccharides were obtained by mild acid degradation of the lipopolysaccharide of associative nitrogen-fixing bacteria Azospirillum brasilense Jm125A2 isolated from the rhizosphere of a pearl millet. The following structures of the polysaccharides were established by sugar and methylation analyses, Smith degradation, and (1)H and (13)C NMR spectroscopy: [Formula: see text] Structure 1 has been reported earlier for a polysaccharide from A. brasilense S17 (Fedonenko YP, Konnova ON, Zdorovenko EL, Konnova SA, Zatonsky GV, Shaskov AS, Ignatov VV, Knirel YA. Carbohydr Res 2008;343:810-6), whereas to our knowledge structure 2 has not been hitherto found in bacterial polysaccharides.
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Affiliation(s)
- Elena N Sigida
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prospekt Entuziastov 13, 410049 Saratov, Russia.
| | - Yuliya P Fedonenko
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prospekt Entuziastov 13, 410049 Saratov, Russia
| | - Alexander S Shashkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991 Moscow, Russia
| | - Evelina L Zdorovenko
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991 Moscow, Russia
| | - Svetlana A Konnova
- Chernyshevsky Saratov State University, Ulitsa Astrakhanskaya 83, 410012 Saratov, Russia
| | - Vladimir V Ignatov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prospekt Entuziastov 13, 410049 Saratov, Russia
| | - Yuriy A Knirel
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991 Moscow, Russia
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50
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Korzeniowska-Kowal A, Kochman A, Gamian E, Lis-Nawara A, Lipiński T, Seweryn E, Ziółkowski P, Gamian A. Antibodies against Escherichia coli O24 and O56 O-Specific Polysaccharides Recognize Epitopes in Human Glandular Epithelium and Nervous Tissue. PLoS One 2015; 10:e0129492. [PMID: 26086646 PMCID: PMC4472344 DOI: 10.1371/journal.pone.0129492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 05/08/2015] [Indexed: 01/06/2023] Open
Abstract
Lipopolysaccharide (LPS), the major component of the outer membrane of Gram-negative bacteria, contains the O-polysaccharide, which is important to classify bacteria into different O-serological types within species. The O-polysaccharides of serotypes O24 and O56 of E. coli contain sialic acid in their structures, already established in our previous studies. Here, we report the isolation of specific antibodies with affinity chromatography using immobilized lipopolysaccharides. Next, we evaluated the reactivity of anti-O24 and anti-O56 antibody on human tissues histologically. The study was conducted under the assumption that the sialic acid based molecular identity of bacterial and tissue structures provides not only an understanding of the mimicry-based bacterial pathogenicity. Cross-reacting antibodies could be used to recognize specific human tissues depending on their histogenesis and differentiation, which might be useful for diagnostic purposes. The results indicate that various human tissues are recognized by anti-O24 and anti-O56 antibodies. Interestingly, only a single specific reactivity could be found in the anti-O56 antibody preparation. Several tissues studied were not reactive with either antibody, thus proving that the presence of cross-reactive antigens was tissue specific. In general, O56 antibody performed better than O24 in staining epithelial and nervous tissues. Positive staining was observed for both normal (ganglia) and tumor tissue (ganglioneuroma). Epithelial tissue showed positive staining, but an epitope recognized by O56 antibody should be considered as a marker of glandular epithelium. The reason is that malignant glandular tumor and its metastasis are stained, and also epithelium of renal tubules and glandular structures of the thyroid gland are stained. Stratified epithelium such as that of skin is definitely not stained. Therefore, the most relevant observation is that the epitope recognized by anti-O56 antibodies is a new marker specific for glandular epithelium and nervous tissue. Further studies should be performed to determine the structure of the tissue epitope recognized.
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Affiliation(s)
- Agnieszka Korzeniowska-Kowal
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53–114, Wrocław, Poland
- * E-mail:
| | - Agata Kochman
- Department of Pathology, Wrocław Medical University, Marcinkowskiego 1, 50–368, Wrocław, Poland
| | - Elżbieta Gamian
- Department of Pathology, Wrocław Medical University, Marcinkowskiego 1, 50–368, Wrocław, Poland
| | - Anna Lis-Nawara
- Department of Pathology, Wrocław Medical University, Marcinkowskiego 1, 50–368, Wrocław, Poland
| | - Tomasz Lipiński
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53–114, Wrocław, Poland
- Wroclaw Research Centre EIT+, Stabłowicka 147, 54–066, Wrocław, Poland
| | - Ewa Seweryn
- Department of Medical Biochemistry, Wrocław Medical University, Chałubińskiego 10, 50–368, Wrocław, Poland
| | - Piotr Ziółkowski
- Department of Pathology, Wrocław Medical University, Marcinkowskiego 1, 50–368, Wrocław, Poland
| | - Andrzej Gamian
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53–114, Wrocław, Poland
- Wroclaw Research Centre EIT+, Stabłowicka 147, 54–066, Wrocław, Poland
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