1
|
Fernández-Barat L, López-Aladid R, Vázquez N, Cabrera R, Vila J, Ferrer M, Torres A. Bacterial Adaptive Memory in Methicillin-Resistant Staphylococcus aureus from Endotracheal Tubes. Pathogens 2024; 13:144. [PMID: 38392882 PMCID: PMC10892081 DOI: 10.3390/pathogens13020144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
OBJECTIVES To evaluate the expression dynamics of biofilm genes in methicillin-resistant Staphylococcus aureus (MRSA) retrieved from endotracheal tubes (ETT) and to determine how gene regulation is attenuated in vitro where host-environmental factors are no longer present. METHODS Biofilm was grown (24 h) in tryptic broth soy plus 0.25% glucose for a clinical MRSA isolate in planktonic state and after sessile growth named ETT-MRSA (S2, S3, S4, S5, S6, S7). Gene expression of five biofilm-related genes (icaC, clfB, ebps, fnbB, and RNA III) was assessed consecutively from day 1 to day 4 after ETT growth through real-time PCR. 16S rRNA was used as a control. RESULTS The MRSA isolates retrieved from ETT were capable of producing biofilms dependent on ica. The gene expression dynamics of ETT-MRSA changed progressively compared to planktonic MRSA gene expression under both ambient air (p < 0.001) and ambient air with 5% CO2 (p < 0.001). Dynamic assessment of icaC expression in both atmospheric conditions showed progressive downregulation in vitro compared to in vivo ETT biofilms. The expression patterns of clfB and ebps genes were similar to icaC. In contrast, the expression of the RNA III gene showed progressive upregulation from day 1 to day 4 (p < 0.001). CONCLUSIONS MRSA loses its biofilm gene expression in vitro, by adaptive features across multiple generations, as evidenced by the progressive downregulation of icaC and upregulation of RNA III. These findings underscore the significance of host-environment dependence in regulating bacterial biofilm genes, highlighting its importance in diagnostics. Bacterial strains lose their host-specific characteristics as they are cultured in vitro.
Collapse
Affiliation(s)
- Laia Fernández-Barat
- Centro de Investigación Biomedica En Red-Enfermedades Respiratorias (CibeRes, CB06/06/0028) and Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (R.L.-A.); (N.V.); (R.C.); (M.F.)
- University of Barcelona, 08193 Barcelona, Spain;
| | - Ruben López-Aladid
- Centro de Investigación Biomedica En Red-Enfermedades Respiratorias (CibeRes, CB06/06/0028) and Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (R.L.-A.); (N.V.); (R.C.); (M.F.)
- University of Barcelona, 08193 Barcelona, Spain;
| | - Nil Vázquez
- Centro de Investigación Biomedica En Red-Enfermedades Respiratorias (CibeRes, CB06/06/0028) and Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (R.L.-A.); (N.V.); (R.C.); (M.F.)
- University of Barcelona, 08193 Barcelona, Spain;
| | - Roberto Cabrera
- Centro de Investigación Biomedica En Red-Enfermedades Respiratorias (CibeRes, CB06/06/0028) and Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (R.L.-A.); (N.V.); (R.C.); (M.F.)
- University of Barcelona, 08193 Barcelona, Spain;
| | - Jordi Vila
- University of Barcelona, 08193 Barcelona, Spain;
- Microbiology Service at Hospital Clinic and Institute of Global Health (ISGlobal), 08036 Barcelona, Spain
| | - Miquel Ferrer
- Centro de Investigación Biomedica En Red-Enfermedades Respiratorias (CibeRes, CB06/06/0028) and Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (R.L.-A.); (N.V.); (R.C.); (M.F.)
- University of Barcelona, 08193 Barcelona, Spain;
- Pulmonary and Critical Care Unit, Respiratory Institute, Hospital Clinic, 08036 Barcelona, Spain
| | - Antoni Torres
- Centro de Investigación Biomedica En Red-Enfermedades Respiratorias (CibeRes, CB06/06/0028) and Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (R.L.-A.); (N.V.); (R.C.); (M.F.)
- University of Barcelona, 08193 Barcelona, Spain;
- Pulmonary and Critical Care Unit, Respiratory Institute, Hospital Clinic, 08036 Barcelona, Spain
| |
Collapse
|
2
|
Isolation and characterization of coagulase negative staphylococci with high proteolytic activity from dry fermented sausages as a potential starter culture. Food Res Int 2022; 162:111957. [DOI: 10.1016/j.foodres.2022.111957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 09/12/2022] [Accepted: 09/17/2022] [Indexed: 11/23/2022]
|
3
|
Influence of Environmental Factors on Biofilm Formation of Staphylococci Isolated from Wastewater and Surface Water. Pathogens 2022; 11:pathogens11101069. [PMID: 36297126 PMCID: PMC9611571 DOI: 10.3390/pathogens11101069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 08/22/2022] [Accepted: 09/14/2022] [Indexed: 11/17/2022] Open
Abstract
The presence of biofilms can negatively affect several different areas, such as the food industry, environment, and biomedical sectors. Conditions under which bacteria grow and develop, such as temperature, nutrients, and pH, among others, can largely influence biofilm production. Staphylococcus species survive in the natural environment due to their tolerance to a wide range of temperatures, dryness, dehydration, and low water activity. Therefore, we aimed to evaluate the influence of external environmental factors on the formation of biofilm of staphylococci isolated from hospital wastewater and surface waters. We investigated the biofilm formation of methicillin-resistant and -susceptible S. aureus (MRSA and MSSA) and coagulase-negative staphylococci (CoNS) under various temperatures, pH values, salt concentrations, glucose concentrations, and under anaerobic and aerobic conditions. CoNS had the ability to produce more biofilm biomass than MSSA and MRSA. All environmental factors studied influenced the biofilm formation of staphylococci isolates after 24 h of incubation. Higher biofilm formation was achieved at 4% of NaCl and 0.5% of glucose for MSSA and CoNS, and 1% of NaCl and 1.5% of glucose for MRSA isolates. Biofilm formation of isolates was greater at 25 °C and 37 °C than at 10 °C and 4 °C. pH values between 6 and 8 led to more robust biofilm formation than pH levels of 9 and 5. Although staphylococci are facultative anaerobes, biofilm formation was higher in the presence of oxygen. The results demonstrated that multiple environmental factors affect staphylococci biofilm formation. Different conditions affect differently the biofilm formation of MRSA, MSSA, and CoNS strains.
Collapse
|
4
|
Rebecchi A, Miragoli F, Lopez C, Bassi D, Fontana C. Exploring Coagulase-Negative Staphylococci Diversity from Artisanal Llama Sausages: Assessment of Technological and Safety Traits. Microorganisms 2020; 8:E629. [PMID: 32349211 PMCID: PMC7284484 DOI: 10.3390/microorganisms8050629] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 11/16/2022] Open
Abstract
Llama sausage is still produced following artisanal procedures, with the autochthonous microbiota being mainly responsible for the fermentation process. In this work, the taxonomical identification and technological-safety criteria of coagulase-negative staphylococci (CNS) isolated from two different productions of llama sausages (P: pilot and A: artisanal) were investigated. Staphylococcus (S) equorum and S. saprophyticus were the species most frequently found in P production, followed by S. succinis and S. warneri; a wider species variability was observed in A factory being S. equorum, S. capitis, S. xylosus, S. pasteuri, S. epidermidis and S. saprophyticus as the main identified species. The technological characterization of 28 CNS strains showed their ability to hydrolyze gelatin and tributyrin together with a relevant nitrate reductase activity. Phenotypic and genotypic approaches were conducted to investigate the main safety traits. Llama's CNS strains exhibited weak decarboxylase and hemolytic activity and low biofilm production; additionally, no enterotoxin genes were detected. Correlation analysis between phenotypic and genotypic data showed low values for the biofilm parameters, while high correlation was observed for oxacillin, ampicillin, tetracycline and aminoglycosides resistance and their genetic determinants. Data obtained may contribute to broaden knowledge about the autochthonous strains of this poorly studied fermented product, thus helping to select an appropriate combination of potential starter cultures to improve llama sausage safety and quality.
Collapse
Affiliation(s)
- Annalisa Rebecchi
- DISTAS, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, 29122 Piacenza, Italy; (A.R.); (D.B.)
- Biotechnology Research Centre (CRB), via Milano 24, 26100 Cremona, Italy; (F.M.); (C.L.)
| | - Francesco Miragoli
- Biotechnology Research Centre (CRB), via Milano 24, 26100 Cremona, Italy; (F.M.); (C.L.)
| | - Constanza Lopez
- Biotechnology Research Centre (CRB), via Milano 24, 26100 Cremona, Italy; (F.M.); (C.L.)
| | - Daniela Bassi
- DISTAS, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, 29122 Piacenza, Italy; (A.R.); (D.B.)
- Biotechnology Research Centre (CRB), via Milano 24, 26100 Cremona, Italy; (F.M.); (C.L.)
| | - Cecilia Fontana
- Instituto Nacional de Tecnología Agropecuaria, Estación Experimental Famaillá, Famaillá 4172, Tucumán, Argentina
| |
Collapse
|
5
|
Sun J, Cao CC, Feng MQ, Xu XL, Zhou GH. Technological and safety characterization of coagulase-negative staphylococci with high protease activity isolated from Traditional Chinese fermented sausages. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108371] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
6
|
Kwiecinski JM, Jacobsson G, Horswill AR, Josefsson E, Jin T. Biofilm formation by Staphylococcus aureus clinical isolates correlates with the infection type. Infect Dis (Lond) 2019; 51:446-451. [PMID: 30985241 DOI: 10.1080/23744235.2019.1593499] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Biofilms are involved in many Staphylococcus aureus infections, but relation of biofilm formation and the infection types or the clinical outcomes remain unclear. METHODS We measured biofilm formation, with a microtiter plate assay, of a collection of methicillin-sensitive clinical isolates from 159 invasive S. aureus infections, encompassing all cases occurring within a hospital catchment area during two years, and from additional 49 non-invasive skin infections from the same region. Results were related to available clinical and microbiological documentation. RESULTS Isolates from medical device infections (intravenous line-associated and prosthetic joint infections), as well as isolates from superficial skin infections, were particularly proficient in forming biofilms. No increased biofilm-forming capacity was seen in isolates from endocarditis, osteomyelitis, or other infections. There was also a correlation of biofilm formation with the agr type of the isolates. Thicker biofilms were more resistant to antibiotic treatment in vitro. No correlation between biofilm formation and clinical outcomes was noted. CONCLUSIONS S. aureus isolates from 'classical' biofilm-related infections, but also from superficial skin infections, are especially proficient in forming biofilms. There is, however, no obvious relation of biofilm-forming capacity of isolates and the clinical outcome of the infection, and more studies on this issue are needed.
Collapse
Affiliation(s)
- Jakub M Kwiecinski
- a Department of Rheumatology and Inflammation Research , Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden.,b Department of Immunology and Microbiology , University of Colorado School of Medicine , Aurora , CO , USA
| | - Gunnar Jacobsson
- c Department of Infectious Diseases , Skaraborg Hospital , Skövde , Sweden
| | - Alexander R Horswill
- b Department of Immunology and Microbiology , University of Colorado School of Medicine , Aurora , CO , USA.,d Department of Veterans Affairs Eastern Colorado Healthcare System , Denver , CO , USA
| | - Elisabet Josefsson
- a Department of Rheumatology and Inflammation Research , Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
| | - Tao Jin
- a Department of Rheumatology and Inflammation Research , Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden.,e Department of Rheumatology , Sahlgrenska University Hospital , Gothenburg , Sweden
| |
Collapse
|
7
|
Di Bonaventura G, Pompilio A, Monaco M, Pimentel de Araujo F, Baldassarri L, Pantosti A, Gherardi G. Adhesion and biofilm formation by Staphylococcus aureus clinical isolates under conditions relevant to the host: relationship with macrolide resistance and clonal lineages. J Med Microbiol 2018; 68:148-160. [PMID: 30540247 DOI: 10.1099/jmm.0.000893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
PURPOSE Staphylococcus aureus isolates, collected from various clinical samples, were analysed to evaluate the contribution of the genetic background of both erythromycin-resistant (ERSA) and -susceptible (ESSA) S. aureus strains to biofilm formation. METHODS A total of 66 ESSA and 43 ERSA clinical isolates were studied for adhesiveness and biofilm formation under different atmospheres. All isolates were evaluated for phenotypic and genotypic macrolide resistance, and for clonal relatedness by pulsed-field gel electrophoresis (PFGE), and by spa typing on representative isolates. RESULTS A high genetic heterogeneity was encountered, although 10 major PFGE types accounted for 86 % with a few small spatially and temporally related clusters. Overall, biofilm formation under anoxia was significantly lower than under oxic and micro-aerophilic atmospheres. Biofilm formation by ESSA was significantly higher compared to ERSA under oxic and micro-aerophilic conditions. Adhesiveness to plastic was significantly higher among respiratory tract infection isolates under micro-aerophilic conditions, while surgical site infection isolates formed significantly higher biomass of biofilm under oxic and micro-aerophilic atmospheres compared to anoxia. Pulsotype 2 and 4 strains formed significantly higher biofilm biomass than pulsotype 1, with strains belonging to CC8 forming significantly more compared to those belonging to CC5, under both oxic and micro-aerophilic atmospheres. CONCLUSIONS S. aureus biofilm formation appears to be more efficient in ESSA than ERSA, associated with specific S. aureus lineages, mainly CC8 and CC15, and affected by atmosphere. Further studies investigating the relationship between antibiotic resistance and biofilm formation could prove useful in the development of new strategies for the management of S. aureus infections.
Collapse
Affiliation(s)
- Giovanni Di Bonaventura
- 1Department of Medical, Oral and Biotechnological Sciences, 'G. d'Annunzio' University of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti (CH), Italy
| | - Arianna Pompilio
- 1Department of Medical, Oral and Biotechnological Sciences, 'G. d'Annunzio' University of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti (CH), Italy
| | - Monica Monaco
- 2Department of Infectious, Parasitic and Immune-mediated Diseases, Italian National Health Institute, Viale Regina Elena 299, 00161 Rome, Italy
| | - Fernanda Pimentel de Araujo
- 2Department of Infectious, Parasitic and Immune-mediated Diseases, Italian National Health Institute, Viale Regina Elena 299, 00161 Rome, Italy
| | - Lucilla Baldassarri
- 3Centro Nazionale Sostanze Chimiche, Cosmetici e Protezione del Consumatore, Italian National Health Institute, Viale Regina Elena 299, 00161 Rome, Italy
| | - Annalisa Pantosti
- 2Department of Infectious, Parasitic and Immune-mediated Diseases, Italian National Health Institute, Viale Regina Elena 299, 00161 Rome, Italy
| | - Giovanni Gherardi
- 4Department of Medicine, Campus Biomedico University, Via Alvaro del Portillo 200, 00128 Rome, Italy
| |
Collapse
|
8
|
Reffuveille F, Josse J, Velard F, Lamret F, Varin-Simon J, Dubus M, Haney EF, Hancock REW, Mongaret C, Gangloff SC. Bone Environment Influences Irreversible Adhesion of a Methicillin-Susceptible Staphylococcus aureus Strain. Front Microbiol 2018; 9:2865. [PMID: 30538688 PMCID: PMC6277558 DOI: 10.3389/fmicb.2018.02865] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 11/07/2018] [Indexed: 12/25/2022] Open
Abstract
Prosthesis and joint infections are an important threat in public health, especially due to the development of bacterial biofilms and their high resistance to antimicrobials. Biofilm-associated infections increase mortality and morbidity rates as well as hospitalization costs. Prevention is the best strategy for this serious issue, so there is an urgent need to understand the signals that could induce irreversible bacterial adhesion on a prosthesis. In this context, we investigated the influence of the bone environment on surface adhesion by a methicillin-susceptible Staphylococcus aureus strain. Using static and dynamic biofilm models, we tested various bone environment factors and showed that the presence of Mg2+, lack of oxygen, and starvation each increased bacterial adhesion. It was observed that human osteoblast-like cell culture supernatants, which contain secreted components that would be found in the bone environment, increased bacterial adhesion capacity by 2-fold (p = 0.015) compared to the medium control. Moreover, supernatants from osteoblast-like cells stimulated with TNF-α to mimic inflammatory conditions increased bacterial adhesion by almost 5-fold (p = 0.003) without impacting on the overall biomass. Interestingly, the effect of osteoblast-like cell supernatants on bacterial adhesion could be counteracted by the activity of synthetic antibiofilm peptides. Overall, the results of this study demonstrate that factors within the bone environment and products of osteoblast-like cells directly influence S. aureus adhesion and could contribute to biofilm initiation on bone and/or prosthetics implants.
Collapse
Affiliation(s)
- Fany Reffuveille
- EA 4691 Biomaterials and Inflammation in Bone Site (BIOS), SFR Cap Santé (FED 4231), University of Reims-Champagne-Ardenne, Reims, France
| | - Jérôme Josse
- EA 4691 Biomaterials and Inflammation in Bone Site (BIOS), SFR Cap Santé (FED 4231), University of Reims-Champagne-Ardenne, Reims, France.,CIRI, INSERM U1111 - CNRS UMR5308 - ENS Lyon, Team "Staphylococcal Pathogenesis", Lyon 1 University, Lyon, France
| | - Frédéric Velard
- EA 4691 Biomaterials and Inflammation in Bone Site (BIOS), SFR Cap Santé (FED 4231), University of Reims-Champagne-Ardenne, Reims, France
| | - Fabien Lamret
- EA 4691 Biomaterials and Inflammation in Bone Site (BIOS), SFR Cap Santé (FED 4231), University of Reims-Champagne-Ardenne, Reims, France
| | - Jennifer Varin-Simon
- EA 4691 Biomaterials and Inflammation in Bone Site (BIOS), SFR Cap Santé (FED 4231), University of Reims-Champagne-Ardenne, Reims, France
| | - Marie Dubus
- EA 4691 Biomaterials and Inflammation in Bone Site (BIOS), SFR Cap Santé (FED 4231), University of Reims-Champagne-Ardenne, Reims, France
| | - Evan F Haney
- Centre for Microbial Diseases and Immunity Research, Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
| | - Robert E W Hancock
- Centre for Microbial Diseases and Immunity Research, Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
| | - Céline Mongaret
- EA 4691 Biomaterials and Inflammation in Bone Site (BIOS), SFR Cap Santé (FED 4231), University of Reims-Champagne-Ardenne, Reims, France.,Pharmacy Department, University Hospital of Reims, Reims, France
| | - Sophie C Gangloff
- EA 4691 Biomaterials and Inflammation in Bone Site (BIOS), SFR Cap Santé (FED 4231), University of Reims-Champagne-Ardenne, Reims, France
| |
Collapse
|
9
|
Assessment of in vivo versus in vitro biofilm formation of clinical methicillin-resistant Staphylococcus aureus isolates from endotracheal tubes. Sci Rep 2018; 8:11906. [PMID: 30093624 PMCID: PMC6085380 DOI: 10.1038/s41598-018-30494-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 07/31/2018] [Indexed: 12/31/2022] Open
Abstract
Our aim was to demonstrate that biofilm formation in a clinical strain of methicillin-resistant Staphylococcus aureus (MRSA) can be enhanced by environment exposure in an endotracheal tube (ETT) and to determine how it is affected by systemic treatment and atmospheric conditions. Second, we aimed to assess biofilm production dynamics after extubation. We prospectively analyzed 70 ETT samples obtained from pigs randomized to be untreated (controls, n = 20), or treated with vancomycin (n = 32) or linezolid (n = 18). A clinical MRSA strain (MRSA-in) was inoculated in pigs to create a pneumonia model, before treating with antibiotics. Tracheally intubated pigs with MRSA severe pneumonia, were mechanically ventilated for 69 ± 16 hours. All MRSA isolates retrieved from ETTs (ETT-MRSA) were tested for their in vitro biofilm production by microtiter plate assay. In vitro biofilm production of MRSA isolates was sequentially studied over the next 8 days post-extubation to assess biofilm capability dynamics over time. All experiments were performed under ambient air (O2) or ambient air supplemented with 5% CO2. We collected 52 ETT-MRSA isolates (placebo N = 19, linezolid N = 11, and vancomycin N = 22) that were clonally identical to the MRSA-in. Among the ETT-MRSA isolates, biofilm production more than doubled after extubation in 40% and 50% under 5% CO2 and O2, respectively. Systemic antibiotic treatment during intubation did not affect this outcome. Under both atmospheric conditions, biofilm production for MRSA-in was at least doubled for 9 ETT-MRSA isolates, and assessment of these showed that biofilm production decreased progressively over a 4-day period after extubation. In conclusion, a weak biofilm producer MRSA strain significantly enhances its biofilm production within an ETT, but it is influenced by the ETT environment rather than by the systemic treatment used during intubation or by the atmospheric conditions used for bacterial growth.
Collapse
|
10
|
Wu X, Kwon SJ, Kim J, Kane RS, Dordick JS. Biocatalytic Nanocomposites for Combating Bacterial Pathogens. Annu Rev Chem Biomol Eng 2017; 8:87-113. [DOI: 10.1146/annurev-chembioeng-060816-101612] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xia Wu
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180
| | - Seok-Joon Kwon
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180
| | - Jungbae Kim
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Ravi S. Kane
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332
| | - Jonathan S. Dordick
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180
- Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, New York 12180
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180
| |
Collapse
|
11
|
Girbau C, Martinez-Malaxetxebarria I, Muruaga G, Carmona S, Alonso R, Fernandez-Astorga A. Study of Biofilm Formation Ability of Foodborne Arcobacter butzleri under Different Conditions. J Food Prot 2017; 80:758-762. [PMID: 28358260 DOI: 10.4315/0362-028x.jfp-16-505] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 01/10/2017] [Indexed: 11/11/2022]
Abstract
The transmission of Arcobacter butzleri, an emerging food- and waterborne pathogen, is possibly favored by its ability to adhere to abiotic surfaces. In this study, we assessed the biofilm formation ability of 42 A. butzleri isolates recovered from different food products. Overall, nine isolates (21.4%) were able to adhere to polystyrene. Among them, a chicken-derived isolate was classified as strongly adherent. Based on the chi-square test, no relation was found between the adhesive abilities of the isolates and their source (P > 0.05). An aerobic atmosphere enhanced the adhesion ability of the majority of the adherent isolates (66.7%), because when tested in microaerobic conditions, a t test indicated that only three isolates increased their biofilm formation ability significantly (P < 0.05). In addition, seven (77.8%) of these nine isolates were able to adhere to glass surfaces, and viable cells were recovered from all the stainless steel coupons tested. Therefore, our results confirm the biofilm formation ability of A. butzleri, which may be influenced by the incubation atmosphere and the abiotic surface.
Collapse
Affiliation(s)
- Cecilia Girbau
- Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), C/Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain (ORCID: http://orcid.org/0000-0002-6576-6707 [I.M.-M.])
| | - Irati Martinez-Malaxetxebarria
- Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), C/Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain (ORCID: http://orcid.org/0000-0002-6576-6707 [I.M.-M.])
| | - Gorka Muruaga
- Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), C/Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain (ORCID: http://orcid.org/0000-0002-6576-6707 [I.M.-M.])
| | - Sandra Carmona
- Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), C/Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain (ORCID: http://orcid.org/0000-0002-6576-6707 [I.M.-M.])
| | - Rodrigo Alonso
- Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), C/Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain (ORCID: http://orcid.org/0000-0002-6576-6707 [I.M.-M.])
| | - Aurora Fernandez-Astorga
- Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), C/Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain (ORCID: http://orcid.org/0000-0002-6576-6707 [I.M.-M.])
| |
Collapse
|
12
|
Ruiz P, Barragán I, Seseña S, Palop ML. Is staphylococci population from milk of healthy goats safe? Int J Food Microbiol 2016; 238:146-152. [PMID: 27620826 DOI: 10.1016/j.ijfoodmicro.2016.08.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 08/13/2016] [Accepted: 08/24/2016] [Indexed: 10/21/2022]
Abstract
The aim of this study was to assess the species and the genetic diversity of the staphylococci population in raw milk from healthy goats. Isolates representative of all genotypes were screened for their potential pathogenicity by the occurrence of some relevant safety-related properties, such as antibiotic resistance, presence of virulence factor genes, biofilm formation ability and biogenic amine production. A total of 314 staphylococci were isolated, and randomly amplified polymorphic DNA-PCR analysis displayed 48 genotypes. Isolates were identified as belonging to S. epidermidis (87.5%), S. caprae (6.2%), S. aureus (4.2%) and S. simulans (2.1%) species. The antibiotic resistance varied strongly with strains, with S. epidermidis and S. aureus strains showing resistance to more number of antibiotics. A high occurrence of strains harbouring hemolysin genes was also found in both species. On the contrary, none of the strains assayed harboured enterotoxin or amino acid decarboxylase genes, and, although a moderate or high biofilm formation was observed in 29% of the strains, they did not harbour icaA or icaD genes. This study gives a first and extensive picture of safety-related properties within Staphylococcus species isolated from milk of healthy goats, displaying that these species can act as a reservoir for spreading genes related to safety.
Collapse
Affiliation(s)
- Patricia Ruiz
- Department of Analytical Chemistry and Food Technology, Environmental Sciences and Biochemistry Faculty, University of Castilla-La Mancha, Avda. Carlos III, s/n, 45071 Toledo, Spain
| | - Iris Barragán
- Department of Analytical Chemistry and Food Technology, Environmental Sciences and Biochemistry Faculty, University of Castilla-La Mancha, Avda. Carlos III, s/n, 45071 Toledo, Spain
| | - Susana Seseña
- Department of Analytical Chemistry and Food Technology, Environmental Sciences and Biochemistry Faculty, University of Castilla-La Mancha, Avda. Carlos III, s/n, 45071 Toledo, Spain
| | - María Llanos Palop
- Department of Analytical Chemistry and Food Technology, Environmental Sciences and Biochemistry Faculty, University of Castilla-La Mancha, Avda. Carlos III, s/n, 45071 Toledo, Spain.
| |
Collapse
|
13
|
Wolcott RD, Hanson JD, Rees EJ, Koenig LD, Phillips CD, Wolcott RA, Cox SB, White JS. Analysis of the chronic wound microbiota of 2,963 patients by 16S rDNA pyrosequencing. Wound Repair Regen 2015; 24:163-74. [DOI: 10.1111/wrr.12370] [Citation(s) in RCA: 209] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 10/10/2015] [Indexed: 12/17/2022]
Affiliation(s)
| | | | - Eric J. Rees
- Research and Testing LaboratoryLubbock Texas and
| | | | | | - Richard A. Wolcott
- Research and Testing LaboratoryLubbock Texas and
- PathoGenius LaboratoryLubbock Texas
| | | | | |
Collapse
|