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Moran CL, Debowski A, Vrielink A, Stubbs K, Sarkar-Tyson M. N-acetyl-β-hexosaminidase activity is important for chitooligosaccharide metabolism and biofilm formation in Burkholderia pseudomallei. Environ Microbiol 2024; 26:e16571. [PMID: 38178319 DOI: 10.1111/1462-2920.16571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/18/2023] [Indexed: 01/06/2024]
Abstract
Burkholderia pseudomallei is a saprophytic Gram-negative bacillus that can cause the disease melioidosis. Although B. pseudomallei is a recognised member of terrestrial soil microbiomes, little is known about its contribution to the saprophytic degradation of polysaccharides within its niche. For example, while chitin is predicted to be abundant within terrestrial soils the chitinolytic capacity of B. pseudomallei is yet to be defined. This study identifies and characterises a putative glycoside hydrolase, bpsl0500, which is expressed by B. pseudomallei K96243. Recombinant BPSL0500 was found to exhibit activity against substrate analogues and GlcNAc disaccharides relevant to chitinolytic N-acetyl-β-d-hexosaminidases. In B. pseudomallei, bpsl0500 was found to be essential for both N-acetyl-β-d-hexosaminidase activity and chitooligosaccharide metabolism. Furthermore, bpsl0500 was also observed to significantly affect biofilm deposition. These observations led to the identification of BPSL0500 activity against model disaccharide linkages that are present in biofilm exopolysaccharides, a feature that has not yet been described for chitinolytic enzymes. The results in this study indicate that chitinolytic N-acetyl-β-d-hexosaminidases like bpsl0500 may facilitate biofilm disruption as well as chitin assimilation, providing dual functionality for saprophytic bacteria such as B. pseudomallei within the competitive soil microbiome.
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Affiliation(s)
- Clare L Moran
- Marshall Centre for Infectious Disease Research and Training, School of Biomedical Sciences, The University of Western Australia, Nedlands, Australia
| | - Aleksandra Debowski
- Marshall Centre for Infectious Disease Research and Training, School of Biomedical Sciences, The University of Western Australia, Nedlands, Australia
| | - Alice Vrielink
- School of Molecular Sciences, The University of Western Australia, Crawley, Australia
| | - Keith Stubbs
- School of Molecular Sciences, The University of Western Australia, Crawley, Australia
- ARC Training Centre for Next-Gen Technologies in Biomedical Analysis, School of Molecular Sciences, University of Western Australia, Crawley, Australia
| | - Mitali Sarkar-Tyson
- Marshall Centre for Infectious Disease Research and Training, School of Biomedical Sciences, The University of Western Australia, Nedlands, Australia
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2
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Samaniego LVB, Higasi PMR, de Mello Capetti CC, Cortez AA, Pratavieira S, de Oliveira Arnoldi Pellegrini V, Dabul ANG, Segato F, Polikarpov I. Staphylococcus aureus microbial biofilms degradation using cellobiose dehydrogenase from Thermothelomyces thermophilus M77. Int J Biol Macromol 2023; 247:125822. [PMID: 37451383 DOI: 10.1016/j.ijbiomac.2023.125822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
This work reports biochemical characterization of Thermothelomyces thermophilus cellobiose dehydrogenase (TthCDHIIa) and its application as an antimicrobial and antibiofilm agent. We demonstrate that TthCDHIIa is thermostable in different ionic solutions and is capable of oxidizing multiple mono and oligosaccharide substrates and to continuously produce H2O2. Kinetics measurements depict the enzyme catalytic characteristics consistent with an Ascomycota class II CDH. Our structural analyses show that TthCDHIIa substrate binding pocket is spacious enough to accommodate larger cello and xylooligosaccharides. We also reveal that TthCDHIIa supplemented with cellobiose reduces the viability of S. aureus ATCC 25923 up to 32 % in a planktonic growth model and also inhibits its biofilm growth on 62.5 %. Furthermore, TthCDHIIa eradicates preformed S. aureus biofilms via H2O2 oxidative degradation of the biofilm matrix, making these bacteria considerably more susceptible to gentamicin and tetracycline.
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Affiliation(s)
| | - Paula Miwa Rabelo Higasi
- Sao Carlos Institute of Physics, University of Sao Paulo, 1100 João Dagnone Avenue, 13563-120 São Carlos, SP, Brazil
| | - Caio Cesar de Mello Capetti
- Sao Carlos Institute of Physics, University of Sao Paulo, 1100 João Dagnone Avenue, 13563-120 São Carlos, SP, Brazil
| | - Anelyse Abreu Cortez
- Sao Carlos Institute of Physics, University of Sao Paulo, 1100 João Dagnone Avenue, 13563-120 São Carlos, SP, Brazil
| | - Sebastião Pratavieira
- Sao Carlos Institute of Physics, University of Sao Paulo, 1100 João Dagnone Avenue, 13563-120 São Carlos, SP, Brazil
| | | | - Andrei Nicoli Gebieluca Dabul
- Sao Carlos Institute of Physics, University of Sao Paulo, 1100 João Dagnone Avenue, 13563-120 São Carlos, SP, Brazil
| | - Fernando Segato
- Lorena School of Engineering, University of Sao Paulo, Estrada Municipal do Campinho, 12602-810 Lorena, SP, Brazil
| | - Igor Polikarpov
- Sao Carlos Institute of Physics, University of Sao Paulo, 1100 João Dagnone Avenue, 13563-120 São Carlos, SP, Brazil.
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3
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Czuba U, Quintana R, De Pauw-Gillet MC, Bourguignon M, Moreno-Couranjou M, Alexandre M, Detrembleur C, Choquet P. Atmospheric Plasma Deposition of Methacrylate Layers Containing Catechol/Quinone Groups: An Alternative to Polydopamine Bioconjugation for Biomedical Applications. Adv Healthc Mater 2018; 7:e1701059. [PMID: 29577666 DOI: 10.1002/adhm.201701059] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 12/22/2017] [Indexed: 01/08/2023]
Abstract
Bioconjugation of enzymes on coatings based on polydopamine (PDA) layers is an appealing approach to control biological responses on biomedical implant surfaces. As alternative to PDA wet deposition, a fast, solvent-free, and dynamic deposition approach based on atmospheric-pressure plasma dielectric barrier discharge process is considered to deposit on metallic surfaces acrylic-based interlayers containing highly chemically reactive catechol/quinone groups. A biomimetic approach based on covalent immobilization of Dispersin B, an enzyme with antibiofilm properties, shows the bioconjugation potential of the novel plasma polymer layers. The excellent antibiofilm activity against Staphylococcus epidermidis is comparable to the PDA-based layers prepared by wet chemical methods with slow deposition rates. A study of preosteoblastic MG-63 human cell line viability and adhesion properties on plasma polymer layers demonstrates early interaction required for biomedical applications.
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Affiliation(s)
- Urszula Czuba
- Materials Research and Technology Department; Luxembourg Institute of Science and Technology (LIST); L-4422 Belvaux Luxembourg
- Chemistry Department, Center for Education and Research on Macromolecules (CERM); CESAM Research Unit; University of Liege; 4000 Liège Belgium
| | - Robert Quintana
- Materials Research and Technology Department; Luxembourg Institute of Science and Technology (LIST); L-4422 Belvaux Luxembourg
| | | | - Maxime Bourguignon
- Chemistry Department, Center for Education and Research on Macromolecules (CERM); CESAM Research Unit; University of Liege; 4000 Liège Belgium
- Symbiose Biomaterials s.a.; 4000 Liège Belgium
| | - Maryline Moreno-Couranjou
- Materials Research and Technology Department; Luxembourg Institute of Science and Technology (LIST); L-4422 Belvaux Luxembourg
| | | | - Christophe Detrembleur
- Chemistry Department, Center for Education and Research on Macromolecules (CERM); CESAM Research Unit; University of Liege; 4000 Liège Belgium
| | - Patrick Choquet
- Materials Research and Technology Department; Luxembourg Institute of Science and Technology (LIST); L-4422 Belvaux Luxembourg
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4
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Torelli R, Cacaci M, Papi M, Paroni Sterbini F, Martini C, Posteraro B, Palmieri V, De Spirito M, Sanguinetti M, Bugli F. Different effects of matrix degrading enzymes towards biofilms formed by E. faecalis and E. faecium clinical isolates. Colloids Surf B Biointerfaces 2017; 158:349-355. [PMID: 28715766 DOI: 10.1016/j.colsurfb.2017.07.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/23/2017] [Accepted: 07/04/2017] [Indexed: 11/29/2022]
Abstract
E. faecalis and E. faecium cause urinary tract infections highly resistant to therapies due to a protective extracellular matrix. To exploit a new strategy able to treat infections without increasing antibiotic doses, we used enzymes targeting specific biofilm matrix components in combination with Vancomycin. We investigated the activity of Vancomycin combined with two matrix-degrading enzymes, Alginate Lyase (AlgL) and Deoxyribonuclease I (DNase I) against in vitro biofilm of E. faecalis and E. faecium clinical isolates. The heterogeneity of matrix composition leads to defined physiological responses of biofilm communities to their environment: we demonstrated that the use of DNase I and AlgL enzymes affects biofilm structure, cell viability and reduces MBEC values of Vancomycin in E. faecalis and E. faecium, respectively.
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Affiliation(s)
- Riccardo Torelli
- Institute of Microbiology, Università Cattolica del SC, L.go F. Vito 1, 00168, Roma, Italy
| | - Margherita Cacaci
- Institute of Microbiology, Università Cattolica del SC, L.go F. Vito 1, 00168, Roma, Italy
| | - Massimiliano Papi
- Institute of Physics, Università Cattolica del SC, L.go F. Vito 1, 00168, Roma, Italy.
| | | | - Cecilia Martini
- Institute of Microbiology, Università Cattolica del SC, L.go F. Vito 1, 00168, Roma, Italy
| | - Brunella Posteraro
- Institute of Hygiene, Università Cattolica del SC, L.go F. Vito 1, 00168, Roma, Italy
| | - Valentina Palmieri
- Institute of Physics, Università Cattolica del SC, L.go F. Vito 1, 00168, Roma, Italy; Institute for Complex Systems, National Research Council (ISC-CNR), Via dei Taurini 19, 00185, Rome, Italy
| | - Marco De Spirito
- Institute of Physics, Università Cattolica del SC, L.go F. Vito 1, 00168, Roma, Italy
| | - Maurizio Sanguinetti
- Institute of Microbiology, Università Cattolica del SC, L.go F. Vito 1, 00168, Roma, Italy
| | - Francesca Bugli
- Institute of Microbiology, Università Cattolica del SC, L.go F. Vito 1, 00168, Roma, Italy
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Waryah CB, Wells K, Ulluwishewa D, Chen-Tan N, Gogoi-Tiwari J, Ravensdale J, Costantino P, Gökçen A, Vilcinskas A, Wiesner J, Mukkur T. In Vitro Antimicrobial Efficacy of Tobramycin Against Staphylococcus aureus Biofilms in Combination With or Without DNase I and/or Dispersin B: A Preliminary Investigation. Microb Drug Resist 2016; 23:384-390. [PMID: 27754780 DOI: 10.1089/mdr.2016.0100] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Staphylococcus aureus in biofilms is highly resistant to the treatment with antibiotics, to which the planktonic cells are susceptible. This is likely to be due to the biofilm creating a protective barrier that prevents antibiotics from accessing the live pathogens buried in the biofilm. S. aureus biofilms consist of an extracellular matrix comprising, but not limited to, extracellular bacterial DNA (eDNA) and poly-β-1, 6-N-acetyl-d-glucosamine (PNAG). Our study revealed that despite inferiority of dispersin B (an enzyme that degrades PNAG) to DNase I that cleaves eDNA, in dispersing the biofilm of S. aureus, both enzymes were equally efficient in enhancing the antibacterial efficiency of tobramycin, a relatively narrow-spectrum antibiotic against infections caused by gram-positive and gram-negative pathogens, including S. aureus, used in this investigation. However, a combination of these two biofilm-degrading enzymes was found to be significantly less effective in enhancing the antimicrobial efficacy of tobramycin than the individual application of the enzymes. These findings indicate that combinations of different biofilm-degrading enzymes may compromise the antimicrobial efficacy of antibiotics and need to be carefully assessed in vitro before being used for treating medical devices or in pharmaceutical formulations for use in the treatment of chronic ear or respiratory infections.
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Affiliation(s)
- Charlene Babra Waryah
- 1 School of Biomedical Sciences, Faculty of Health Science, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia.,2 Department of Medicine, Albert Einstein College of Medicine , Bronx, New York.,3 Department of Cell Biology, Albert Einstein College of Medicine , Bronx, New York
| | - Kelsi Wells
- 1 School of Biomedical Sciences, Faculty of Health Science, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia
| | - Dulantha Ulluwishewa
- 1 School of Biomedical Sciences, Faculty of Health Science, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia
| | - Nigel Chen-Tan
- 4 Curtin Electron Microscope Facility, John de Laeter Centre, Faculty of Science and Engineering, Curtin University , Perth, Western Australia
| | - Jully Gogoi-Tiwari
- 1 School of Biomedical Sciences, Faculty of Health Science, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia
| | - Joshua Ravensdale
- 1 School of Biomedical Sciences, Faculty of Health Science, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia
| | - Paul Costantino
- 1 School of Biomedical Sciences, Faculty of Health Science, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia
| | - Anke Gökçen
- 5 Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology , Gießen, Germany
| | - Andreas Vilcinskas
- 5 Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology , Gießen, Germany
| | - Jochen Wiesner
- 5 Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology , Gießen, Germany
| | - Trilochan Mukkur
- 1 School of Biomedical Sciences, Faculty of Health Science, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia
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Baumann A, Lehmann R, Beckert A, Vilcinskas A, Franta Z. Selection and Evaluation of Tissue Specific Reference Genes in Lucilia sericata during an Immune Challenge. PLoS One 2015; 10:e0135093. [PMID: 26252388 PMCID: PMC4529112 DOI: 10.1371/journal.pone.0135093] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 07/16/2015] [Indexed: 11/30/2022] Open
Abstract
The larvae of the common green bottle fly Lucilia sericata (Diptera: Calliphoridae) have been used for centuries to promote wound healing, but the molecular basis of their antimicrobial, debridement and healing functions remains largely unknown. The analysis of differential gene expression in specific larval tissues before and after immune challenge could be used to identify key molecular factors, but the most sensitive and reproducible method qRT-PCR requires validated reference genes. We therefore selected 10 candidate reference genes encoding products from different functional classes (18S rRNA, 28S rRNA, actin, β-tubulin, RPS3, RPLP0, EF1α, PKA, GAPDH and GST1). Two widely applied algorithms (GeNorm and Normfinder) were used to analyze reference gene candidates in different larval tissues associated with secretion, digestion, and antimicrobial activity (midgut, hindgut, salivary glands, crop and fat body). The Gram-negative bacterium Pseudomonas aeruginosa was then used to boost the larval immune system and the stability of reference gene expression was tested in comparison to three immune genes (lucimycin, defensin-1 and attacin-2), which target different pathogen classes. We observed no differential expression of the antifungal peptide lucimycin, whereas the representative targeting Gram-positive bacteria (defensin-1) was upregulated in salivary glands, crop, nerve ganglion and reached its maximum in fat body (up to 300-fold). The strongest upregulation in all immune challenged tissues (over 50,000-fold induction in the fat body) was monitored for attacin-2, the representative targeting Gram-negative bacteria. Here we identified and validated a set of reference genes that allows the accurate normalization of gene expression in specific tissues of L. sericata after immune challenge.
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Affiliation(s)
- Andre Baumann
- Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Giessen, Germany
| | - Rüdiger Lehmann
- Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Giessen, Germany
| | - Annika Beckert
- Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Giessen, Germany
| | - Andreas Vilcinskas
- Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Giessen, Germany
- Institute of Phytopathology and Applied Zoology, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Zdeněk Franta
- Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Giessen, Germany
- * E-mail:
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Dobrynina OY, Bolshakova TN, Umyarov AM, Boksha IS, Lavrova NV, Grishin AV, Lyashchuk AM, Galushkina ZM, Avetisian LR, Chernukha MY, Shaginian IA, Lunin VG, Karyagina AS. Disruption of bacterial biofilms using recombinant dispersin B. Microbiology (Reading) 2015. [DOI: 10.1134/s0026261715040062] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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8
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Gökçen A, Vilcinskas A, Wiesner J. Biofilm-degrading enzymes from Lysobacter gummosus. Virulence 2014; 5:378-87. [PMID: 24518560 DOI: 10.4161/viru.27919] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Biofilm-degrading enzymes could be used for the gentle cleaning of industrial and medical devices and the manufacture of biofilm-resistant materials. We therefore investigated 20 species and strains of the bacterial genus Lysobacter for their ability to degrade experimental biofilms formed by Staphylococcus epidermidis, a common nosocomial pathogen typically associated with device-related infections. The highest biofilm-degradation activity was achieved by L. gummosus. The corresponding enzymes were identified by sequencing the L. gummosus genome. Partial purification of the biofilm-degrading activity from an extract of extracellular material followed by peptide mass fingerprinting resulted in the identification of two peptidases (α-lytic protease and β-lytic metalloendopeptidase) that were predicted to degrade bacterial cell walls. In addition, we identified two isoforms of a lysyl endopeptidase and an enzyme similar to metalloproteases from Vibrio spp. Potential peptidoglycan-binding C-terminal fragments of two OmpA-like proteins also co-purified with the biofilm-degrading activity. The L. gummosus genome was found to encode five isoenzymes of α-lytic protease and three isoenzymes of lysyl endopeptidase. These results indicated that the extracellular digestion of biofilms by L. gummosus depends on multiple bacteriolytic and proteolytic enzymes, which could now be exploited for biofilm control.
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Affiliation(s)
- Anke Gökçen
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME; Project Group Bioresources; Gießen, Germany
| | - Andreas Vilcinskas
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME; Project Group Bioresources; Gießen, Germany; Justus-Liebig University of Gießen; Institute of Phytopathology and Applied Zoology at the Interdisciplinary Research Center; Gießen, Germany
| | - Jochen Wiesner
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME; Project Group Bioresources; Gießen, Germany
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Monnappa AK, Dwidar M, Seo JK, Hur JH, Mitchell RJ. Bdellovibrio bacteriovorus inhibits Staphylococcus aureus biofilm formation and invasion into human epithelial cells. Sci Rep 2014; 4:3811. [PMID: 24448451 PMCID: PMC3898049 DOI: 10.1038/srep03811] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 01/02/2014] [Indexed: 12/29/2022] Open
Abstract
Bdellovibrio bacteriovorus HD100 is a predatory bacterium that attacks many Gram-negative human pathogens. A serious drawback of this strain, however, is its ineffectiveness against Gram-positive strains, such as the human pathogen Staphylococcus aureus. Here we demonstrate that the extracellular proteases produced by a host-independent B. bacteriovorus (HIB) effectively degrade/inhibit the formation of S. aureus biofilms and reduce its virulence. A 10% addition of HIB supernatant caused a 75% or greater reduction in S. aureus biofilm formation as well as 75% dispersal of pre-formed biofilms. LC-MS-MS analyses identified various B. bacteriovorus proteases within the supernatant, including the serine proteases Bd2269 and Bd2321. Tests with AEBSF confirmed that serine proteases were active in the supernatant and that they impacted S. aureus biofilm formation. The supernatant also possessed a slight DNAse activity. Furthermore, treatment of planktonic S. aureus with the supernatant diminished its ability to invade MCF-10a epithelial cells by 5-fold but did not affect the MCF-10a viability. In conclusion, this study illustrates the hitherto unknown ability of B. bacteriovorus to disperse Gram-positive pathogenic biofilms and mitigate their virulence.
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Affiliation(s)
- Ajay K. Monnappa
- School of Life Sciences, Ulsan National Institute of Science and Technology
- These authors contributed equally to this work
| | - Mohammed Dwidar
- School of Life Sciences, Ulsan National Institute of Science and Technology
- These authors contributed equally to this work
| | - Jeong Kon Seo
- UNIST Central Research Facility, Ulsan National Institute of Science and Technology
| | - Jin-Hoe Hur
- UNIST Central Research Facility, Ulsan National Institute of Science and Technology
| | - Robert J. Mitchell
- School of Life Sciences, Ulsan National Institute of Science and Technology
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