1
|
Núño K, Jensen AS, O'Connor G, Houston TJ, Dikici E, Zingg JM, Deo S, Daunert S. Insights into Women's health: Exploring the vaginal microbiome, quorum sensing dynamics, and therapeutic potential of quorum sensing quenchers. Mol Aspects Med 2024; 100:101304. [PMID: 39255544 DOI: 10.1016/j.mam.2024.101304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 07/28/2024] [Indexed: 09/12/2024]
Abstract
The vaginal microbiome is an important aspect of women's health that changes dynamically with various stages of the woman's life. Just like the gut microbiome, the vaginal microbiome can also be affected by pathologies that dramatically change the typical composition of native vaginal microorganisms. However, the mechanism as to how both vaginal endemic and gut endemic opportunistic microbes can express pathogenicity in vaginal polymicrobial biofilms is poorly understood. Quorum sensing is the cellular density-dependent bacterial and fungal communication process in which chemical signaling molecules, known as autoinducers, activate expression for genes responsible for virulence and pathogenicity, such as biofilm formation and virulence factor production. Quorum sensing inhibition, or quorum quenching, has been explored as a potential therapeutic route for both bacterial and fungal infections. By applying these quorum quenchers, one can reduce biofilm formation of opportunistic vaginal microbes and combine them with antibiotics for a synergistic effect. This review aims to display the relationship between the vaginal and gut microbiome, the role of quorum sensing in polymicrobial biofilm formation which cause pathology in the vaginal microbiome, and how quorum quenchers can be utilized to attenuate the severity of bacterial and fungal infections.
Collapse
Affiliation(s)
- Kevin Núño
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, Miami, FL, 33136, USA
| | - Anne Sophie Jensen
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, Miami, FL, 33136, USA
| | - Gregory O'Connor
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, Miami, FL, 33136, USA; Dr. JT Macdonald Biomedical Nanotechnology Institute (BioNIUM), University of Miami, Miami, FL, 33136, USA
| | - Tiffani Janae Houston
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, Miami, FL, 33136, USA; Department of Internal Medicine, University of Miami, Miller School of Medicine, Miami, FL, 33136, USA
| | - Emre Dikici
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, Miami, FL, 33136, USA; Dr. JT Macdonald Biomedical Nanotechnology Institute (BioNIUM), University of Miami, Miami, FL, 33136, USA
| | - Jean Marc Zingg
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, Miami, FL, 33136, USA; Dr. JT Macdonald Biomedical Nanotechnology Institute (BioNIUM), University of Miami, Miami, FL, 33136, USA
| | - Sapna Deo
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, Miami, FL, 33136, USA; Dr. JT Macdonald Biomedical Nanotechnology Institute (BioNIUM), University of Miami, Miami, FL, 33136, USA
| | - Sylvia Daunert
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, Miami, FL, 33136, USA; Dr. JT Macdonald Biomedical Nanotechnology Institute (BioNIUM), University of Miami, Miami, FL, 33136, USA; Sylvester Comprehensive Cancer Center, University of Miami, Miller School of Medicine, Miami, FL, 33136, USA.
| |
Collapse
|
2
|
Zhou Y, Shen Z, Xu Y, Qian XN, Chen W, Qiu J. Antimicrobial efficiency and cytocompatibility of resveratrol and naringin as chemical decontaminants on SLA surface. Microbiol Spectr 2024:e0367923. [PMID: 39240122 DOI: 10.1128/spectrum.03679-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 07/23/2024] [Indexed: 09/07/2024] Open
Abstract
Bacterial biofilms are the major etiology agent of peri-implant disease. Chemical decontamination is a promising treatment strategy against bacterial biofilms; however, its applications are limited by its low efficiency and poor biocompatibility. In contrast to three conventional cleaners (sterile saline, hydrogen peroxide, and chlorhexidine), this study used resveratrol and naringin solutions to remove mature Staphylococcus aureus and Porphyromonas gingivalis biofilm on sandblasted (with large grit and acid-etched (SLA) titanium surface. To determine changes in surface characteristics, the surface wettability and roughness were measured, and micromorphology was observed by scanning electron microscopy. With crystal violet (CV) and live/dead bacterial staining, residual plaque quantity and composition were measured. The biocompatibility was tested using pH and cytotoxicity, as well as by osteoblasts (MC3T3-E1) adhesion, proliferation, and differentiation, and fibroblasts (L-929) proliferation were also analyzed. It was found that resveratrol and naringin solutions were more effective in restoring surface characteristics and also showed that less plaque and viable bacteria were left. Naringin removed S. aureus biofilms better than chlorhexidine. Alkaline resveratrol and naringin solutions increased cell adhesion, proliferation, and osteogenic differentiation without any cytotoxicity. Resveratrol increased the expression of mRNA and protein associated with osteogenesis. In conclusion, resveratrol and naringin effectively restored SLA titanium surface characteristics and decontaminated the biofilm with good biocompatibility, suggesting their therapeutic potential as chemical decontaminants. IMPORTANCE Bacterial biofilms are considered the primary etiology of peri-implant disease. Physical cleaning is the most common way to remove bacterial biofilm, but it can cause grooving, melting, and deposition of chemicals that alter the surface of implants, which may hamper biocompatibility and re-osseointegration. Chemical decontamination is one of the most promising treatments but is limited by low efficiency and poor biocompatibility. Our study aims to develop safer, more effective chemical decontaminants for peri-implant disease prevention and treatment. We focus on resveratrol and naringin, two natural compounds, which have shown to be more effective in decontaminating biofilms on dental implant surfaces and exerting better biocompatibility. This research is groundbreaking as it is the first exploration of natural plant extracts' impact on mature bacterial biofilms on rough titanium surfaces. By advancing this knowledge, we seek to contribute to more effective and biocompatible strategies for combating peri-implant diseases, enhancing oral health, and prolonging implant lifespan.
Collapse
Affiliation(s)
- You Zhou
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Zhe Shen
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing, China
| | - Yan Xu
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing, China
| | - Xin-Na Qian
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing, China
| | - Wei Chen
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing, China
| | - Jing Qiu
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| |
Collapse
|
3
|
Hartmann A, Binder T, Rothballer M. Quorum sensing-related activities of beneficial and pathogenic bacteria have important implications for plant and human health. FEMS Microbiol Ecol 2024; 100:fiae076. [PMID: 38744663 PMCID: PMC11149725 DOI: 10.1093/femsec/fiae076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/28/2024] [Accepted: 05/13/2024] [Indexed: 05/16/2024] Open
Abstract
Eukaryotic organisms coevolved with microbes from the environment forming holobiotic meta-genomic units. Members of host-associated microbiomes have commensalic, beneficial/symbiotic, or pathogenic phenotypes. More than 100 years ago, Lorenz Hiltner, pioneer of soil microbiology, introduced the term 'Rhizosphere' to characterize the observation that a high density of saprophytic, beneficial, and pathogenic microbes are attracted by root exudates. The balance between these types of microbes decide about the health of the host. Nowadays we know, that for the interaction of microbes with all eukaryotic hosts similar principles and processes of cooperative and competitive functions are in action. Small diffusible molecules like (phyto)hormones, volatiles and quorum sensing signals are examples for mediators of interspecies and cross-kingdom interactions. Quorum sensing of bacteria is mediated by different autoinducible metabolites in a density-dependent manner. In this perspective publication, the role of QS-related activities for the health of hosts will be discussed focussing mostly on N-acyl-homoserine lactones (AHL). It is also considered that in some cases very close phylogenetic relations exist between plant beneficial and opportunistic human pathogenic bacteria. Based on a genome and system-targeted new understanding, sociomicrobiological solutions are possible for the biocontrol of diseases and the health improvement of eukaryotic hosts.
Collapse
Affiliation(s)
- Anton Hartmann
- Faculty of Biology, Microbe-Host Interactions, Ludwig-Maximilian-University Munich, Grosshaderner Str. 2, D-82152 Planegg/Martinsried, Germany
- Department of Environmental Sciences, Helmholtz Zentrum Munich, German Research Center for Health and Environment, Research Unit Microbe-Plant Interactions, Ingolstädter Landstr. 1, D-85762 Neuherberg, Germany
| | - Tatiana Binder
- Department of Environmental Sciences, Helmholtz Zentrum Munich, German Research Center for Health and Environment, Research Unit Microbe-Plant Interactions, Ingolstädter Landstr. 1, D-85762 Neuherberg, Germany
| | - Michael Rothballer
- Department of Environmental Sciences, Helmholtz Zentrum Munich, German Research Center for Health and Environment, Research Unit Microbe-Plant Interactions, Ingolstädter Landstr. 1, D-85762 Neuherberg, Germany
- Helmholtz Zentrum Munich, German Research Center for Health and Environment, Institute of Network Biology, Ingolstädter Landstr. 1 D-85762 Neuherberg, Germany
| |
Collapse
|
4
|
Gonzales M, Jacquet P, Gaucher F, Chabrière É, Plener L, Daudé D. AHL-Based Quorum Sensing Regulates the Biosynthesis of a Variety of Bioactive Molecules in Bacteria. JOURNAL OF NATURAL PRODUCTS 2024; 87:1268-1284. [PMID: 38390739 DOI: 10.1021/acs.jnatprod.3c00672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Bacteria are social microorganisms that use communication systems known as quorum sensing (QS) to regulate diverse cellular behaviors including the production of various secreted molecules. Bacterial secondary metabolites are widely studied for their bioactivities including antibiotic, antifungal, antiparasitic, and cytotoxic compounds. Besides playing a crucial role in natural bacterial niches and intermicrobial competition by targeting neighboring organisms and conferring survival advantages to the producer, these bioactive molecules may be of prime interest to develop new antimicrobials or anticancer therapies. This review focuses on bioactive compounds produced under acyl homoserine lactone-based QS regulation by Gram-negative bacteria that are pathogenic to humans and animals, including the Burkholderia, Serratia, Pseudomonas, Chromobacterium, and Pseudoalteromonas genera. The synthesis, regulation, chemical nature, biocidal effects, and potential applications of these identified toxic molecules are presented and discussed in light of their role in microbial interactions.
Collapse
Affiliation(s)
- Mélanie Gonzales
- Aix Marseille Université, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille 13288, France
- Gene&GreenTK, Marseille 13005, France
| | | | | | - Éric Chabrière
- Aix Marseille Université, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille 13288, France
| | | | | |
Collapse
|
5
|
Sikdar R, Beauclaire MV, Lima BP, Herzberg MC, Elias MH. N-acyl homoserine lactone signaling modulates bacterial community associated with human dental plaque. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.15.585217. [PMID: 38559107 PMCID: PMC10980036 DOI: 10.1101/2024.03.15.585217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
N-acyl homoserine lactones (AHLs) are small diffusible signaling molecules that mediate a cell density-dependent bacterial communication system known as quorum sensing (QS). AHL-mediated QS regulates gene expression to control many critical bacterial behaviors including biofilm formation, pathogenicity, and antimicrobial resistance. Dental plaque is a complex multispecies oral biofilm formed by successive colonization of the tooth surface by groups of commensal, symbiotic, and pathogenic bacteria, which can contribute to tooth decay and periodontal diseases. While the existence and roles of AHL-mediated QS in oral microbiota have been debated, recent evidence indicates that AHLs play significant roles in oral biofilm development and community dysbiosis. The underlying mechanisms, however, remain poorly characterized. To better understand the importance of AHL signaling in dental plaque formation, we manipulated AHL signaling by adding AHL lactonases or exogenous AHL signaling molecules. We find that AHLs can be detected in dental plaque grown under 5% CO2 conditions, but not when grown under anaerobic conditions, and yet anaerobic cultures are still responsive to AHLs. QS signal disruption using lactonases leads to changes in microbial population structures in both planktonic and biofilm states, changes that are dependent on the substrate preference of the used lactonase but mainly result in the increase in the abundance of commensal and pioneer colonizer species. Remarkably, the opposite manipulation, that is the addition of exogenous AHLs increases the abundance of late colonizer bacterial species. Hence, this work highlights the importance of AHL-mediated QS in dental plaque communities, its potential different roles in anaerobic and aerobic parts of dental plaque, and underscores the potential of QS interference in the control of periodontal diseases.
Collapse
Affiliation(s)
- Rakesh Sikdar
- Biotechnology Institute, University of Minnesota, Saint Paul, MN 55108, USA
| | - Mai V. Beauclaire
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Saint Paul, MN 55108, USA
| | - Bruno P. Lima
- Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN 55455, USA
| | - Mark C. Herzberg
- Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN 55455, USA
| | - Mikael H. Elias
- Biotechnology Institute, University of Minnesota, Saint Paul, MN 55108, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Saint Paul, MN 55108, USA
| |
Collapse
|
6
|
Silva-Bea S, Romero M, Parga A, Fernández J, Mora A, Otero A. Comparative analysis of multidrug-resistant Klebsiella pneumoniae strains of food and human origin reveals overlapping populations. Int J Food Microbiol 2024; 413:110605. [PMID: 38308879 DOI: 10.1016/j.ijfoodmicro.2024.110605] [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: 09/25/2023] [Revised: 01/08/2024] [Accepted: 01/22/2024] [Indexed: 02/05/2024]
Abstract
Given the increasing incidence of multidrug-resistant (MDR) Klebsiella pneumoniae infections, it is of great interest to investigate the risk of transmission associated with the prevalence of this pathogen. Some studies have described fresh raw poultry meat as a reservoir of MDR K. pneumoniae, including clinically relevant sequence types (ST) and extended-spectrum β-lactamase (ESBL) strains, indicating possible consumer exposure. This study compared 47 MDR strains of K. pneumoniae from poultry meat and human clinical isolates to assess similarities, including analysis of antimicrobial resistance profiles and virulence factors involved in infection. In addition, several biofilm culture methods were evaluated for reproducible assessment of biofilm formation in K. pneumoniae strains. Globally, no association between strain origin and STs, hypermucoviscosity, biofilm formation or serum resistance could be found between isolates of food and clinical origin, nor an associated AMR pattern, suggesting overlapping populations. We found that LB supplemented with glucose in microaerobiosis was the best discrimination condition for biofilm formation in the active attachment biofilm cultivation model. The biofilm formation capacity was strongly dependent on culture conditions, with a strain-specific response, but only a minor increase in biofilm levels was recorded in clinical K. pneumoniae populations. Our results suggest that a similar risk of zoonosis transmission from potentially virulent foodborne strains previously observed in E. coli is also present in this high-priority pathogen. This study further confirms that foodborne isolates of K. pneumoniae pose a risk to consumers and therefore this pathogen should be included in the surveillance of foodborne pathogens with high risk of MDR infections and therapeutic failure.
Collapse
Affiliation(s)
- Sergio Silva-Bea
- Department of Microbiology and Parasitology, Faculty of Biology, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Manuel Romero
- Department of Microbiology and Parasitology, Faculty of Biology, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Ana Parga
- Department of Microbiology and Parasitology, Faculty of Biology, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Javier Fernández
- Servicio de Microbiología, Hospital Universitario Central de Asturias (HUCA), 33011 Oviedo, Spain; Grupo de Microbiología Traslacional, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain; Research & Innovation, Artificial Intelligence and Statistical Department, Pragmatech AI Solutions, Spain
| | - Azucena Mora
- Laboratorio de Referencia de Escherichia coli (LREC), Department of Microbiology and Parasitology, Universidade de Santiago de Compostela, Lugo, Spain; Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), 15706 Santiago, Spain
| | - Ana Otero
- Department of Microbiology and Parasitology, Faculty of Biology, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
| |
Collapse
|
7
|
Zhao ZZ, Wang J, Liu X, Wang Z, Zheng X, Li W, Cheng T, Zhang J. N-acyl homoserine lactones lactonase est816 suppresses biofilm formation and periodontitis in rats mediated by Aggregatibacter actinomycetemcomitans. J Oral Microbiol 2024; 16:2301200. [PMID: 38193137 PMCID: PMC10773656 DOI: 10.1080/20002297.2023.2301200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 12/28/2023] [Indexed: 01/10/2024] Open
Abstract
Aims The current study aimed to explore the adjuvant therapeutic effect of N-acyl homoserine lactones (AHLs)-lactonase est816 on Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans) biological behaviors and periodontitis progression. Methods The inhibitory properties of est816 were detected by live/dead bacterial staining, scanning electron microscope (SEM), crystal-violet staining and reverse-transcription quantitative PCR (RT-qPCR). Biocompatibility of est816 on human gingival fibroblasts (HGFs) and human gingival epithelial cells (HGEs) was evaluated by CCK8 and ELISA. The ligature-induced periodontitis model was established in rats. Micro computed tomography and immunohistochemical and histological staining served to evaluate the effect of est816 on the prevention of periodontitis in vivo. Results est816 significantly attenuated biofilm formation, reduced the mRNA expression of cytolethal distending toxin, leukotoxin and poly-N-acetyl glucosamine (PNAG) and downregulated expressions of interleukin-6 and tumor necrosis factor-α with low cell toxicity. In vivo investigations revealed est816 decreased alveolar bone resorption, suppressed matrix metalloproteinase-9 expression and increased osteoprotegerin expression. Conclusion est816 inhibited A. actinomycetemcomitans biofilm formation and virulence release, resulting in anti-inflammation and soothing of periodontitis in rats, indicating that est816 could be investigated in further research on periodontal diseases.
Collapse
Affiliation(s)
- Zelda Ziyi Zhao
- Stomatological Hospital and College, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, Anhui, China
| | - Junmin Wang
- Stomatological Hospital and College, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, Anhui, China
| | - Xinpai Liu
- Stomatological Hospital and College, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, Anhui, China
| | - Zezhi Wang
- Stomatological Hospital and College, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, Anhui, China
| | - Xianyu Zheng
- Stomatological Hospital and College, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, Anhui, China
| | - Wuli Li
- Stomatological Hospital and College, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, Anhui, China
| | - Tianfan Cheng
- Division of Periodontology & Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Jing Zhang
- Stomatological Hospital and College, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, Anhui, China
| |
Collapse
|
8
|
Su Y, Xu MY, Cui Y, Chen RZ, Xie LX, Zhang JX, Chen YQ, Ding T. Bacterial quorum sensing orchestrates longitudinal interactions to shape microbiota assembly. MICROBIOME 2023; 11:241. [PMID: 37926838 PMCID: PMC10626739 DOI: 10.1186/s40168-023-01699-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 10/16/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND The mechanism of microbiota assembly is one of the main problems in microbiome research, which is also the primary theoretical basis for precise manipulation of microbial communities. Bacterial quorum sensing (QS), as the most common means for bacteria to exchange information and interactions, is characterized by universality, specificity, and regulatory power, which therefore may influence the assembly processes of human microbiota. However, the regulating role of QS in microbiota assembly is rarely reported. In this study, we developed an optimized in vitro oral biofilm microbiota assembling (OBMA) model to simulate the time-series assembly of oral biofilm microbiota (OBM), by which to excavate the QS network and its regulating power in the process. RESULTS By using the optimized OBMA model, we were able to restore the assembly process of OBM and generate time-series OBM metagenomes of each day. We discovered a total of 2291 QS protein homologues related to 21 QS pathways. Most of these pathways were newly reported and sequentially enriched during OBM assembling. These QS pathways formed a comprehensive longitudinal QS network that included successively enriched QS hubs, such as Streptococcus, Veillonella-Megasphaera group, and Prevotella-Fusobacteria group, for information delivery. Bidirectional cross-talk among the QS hubs was found to play critical role in the directional turnover of microbiota structure, which in turn, influenced the assembly process. Subsequent QS-interfering experiments accurately predicted and experimentally verified the directional shaping power of the longitudinal QS network in the assembly process. As a result, the QS-interfered OBM exhibited delayed and fragile maturity with prolonged membership of Streptococcus and impeded membership of Prevotella and Fusobacterium. CONCLUSION Our results revealed an unprecedented longitudinal QS network during OBM assembly and experimentally verified its power in predicting and manipulating the assembling process. Our work provides a new perspective to uncover underlying mechanism in natural complex microbiota assembling and a theoretical basis for ultimately precisely manipulating human microbiota through intervention in the QS network. Video Abstract.
Collapse
Affiliation(s)
- Ying Su
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
- Key Laboratory of Tropical Diseases Control (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China
| | - Ming-Ying Xu
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
- Department of Immunology and Pathogenic Biology, Zhaoqing Medical College, Zhaoqing, 526020, China
| | - Ying Cui
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
- Key Laboratory of Tropical Diseases Control (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China
| | - Run-Zhi Chen
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
- Key Laboratory of Tropical Diseases Control (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China
| | - Li-Xiang Xie
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
- Key Laboratory of Tropical Diseases Control (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China
| | - Jing-Xiang Zhang
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
- Key Laboratory of Tropical Diseases Control (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China
| | - Yong-Qiu Chen
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
- Key Laboratory of Tropical Diseases Control (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China
| | - Tao Ding
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China.
- Key Laboratory of Tropical Diseases Control (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China.
| |
Collapse
|
9
|
Parga A, Balboa S, Otero-Casal P, Otero A. New Preventive Strategy against Oral Biofilm Formation in Caries-Active Children: An In Vitro Study. Antibiotics (Basel) 2023; 12:1263. [PMID: 37627682 PMCID: PMC10451667 DOI: 10.3390/antibiotics12081263] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/27/2023] Open
Abstract
Quorum quenching (QQ) is the inhibition of bacterial communication, i.e., quorum sensing (QS). QS is a key mechanism in regulating biofilm formation and phenotype in complex bacterial communities, such as those found within cariogenic biofilms. Whereas QQ approaches were shown to effectively reduce biomass, knowledge of their impact on the taxonomic composition of oral polymicrobial biofilms remains scarce. Here, we investigate the effect of the QQ lactonase Aii20J on biomass production and taxonomical composition of biofilms. We collected supragingival plaque samples from 10 caries-free and 10 caries-active children and cultured them to generate in vitro biofilms. We describe significant biomass reductions upon Aii20J exposure, as assessed by crystal violet assays. Taxonomical profiling using 16S rRNA gene amplicon sequencing revealed no significant changes in bacterial composition at the genus level. Interestingly, at the species level Aii20J-treatment increased the abundance of Streptococcus cristatus and Streptococcus salivarius. Both S. cristatus and S. salivarius express pH-buffering enzymes (arginine deiminase and urease, respectively) that catalyze ammonia production, thereby potentially raising local pH and counteracting the biofilm's cariogenic potential. Within the limitations of the study, our findings provide evidence of the biofilm-modulating ability of QQ and offer novel insights into alternative strategies to restore homeostasis within dysbiotic ecosystems.
Collapse
Affiliation(s)
- Ana Parga
- Department of Microbiology and Parasitology, CIBUS-Faculty of Biology, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| | - Sabela Balboa
- Department of Microbiology and Parasitology, Center of Cross-Disciplinary Research in Environmental Technologies (CRETUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Paz Otero-Casal
- Department of Surgery and Medical-Surgical Specialties, Faculty of Medicine and Odontology, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Unit of Oral Health, Centro de Saúde Santa Comba-Negreira, SERGAS, 15841 Santa Comba, Spain
| | - Ana Otero
- Department of Microbiology and Parasitology, CIBUS-Faculty of Biology, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| |
Collapse
|
10
|
Nagi M, Chapple ILC, Sharma P, Kuehne SA, Hirschfeld J. Quorum Sensing in Oral Biofilms: Influence on Host Cells. Microorganisms 2023; 11:1688. [PMID: 37512861 PMCID: PMC10386421 DOI: 10.3390/microorganisms11071688] [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: 05/30/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023] Open
Abstract
Quorum sensing molecules (QSMs) in the oral cavity regulate biofilm formation, the acquisition of iron, stress responses, and the expression of virulence factors. However, knowledge of the direct QSM-host interactions in the oral environment is limited, although their understanding could provide greater insight into the cross-kingdom communication occurring during oral disease development. This review aims to explore the literature on oral QSM-host interactions and to highlight areas of advancement in this field. The studies included in this review encompass an array of cell types and oral QSMs, with particular emphasis on immune cells and their relationship to periodontal diseases. It can be inferred from the current literature that QSMs are utilised by host cells to detect bacterial presence and, in the majority of cases, elicit an immune response towards the environmental QSMs. This may provide a base to target QSMs as a novel treatment of oral diseases. However, N-acyl homoserine lactone (AHL) detection methods remain an area for development, through which a greater understanding of the influence of oral QSMs on host cells could be achieved.
Collapse
Affiliation(s)
- Malee Nagi
- Oral Microbiology Group, School of Dentistry, Institute of Microbiology and Infection, College of Medical and Dental Sciences, University of Birmingham, Birmingham B5 7EG, UK
- Periodontal Research Group, School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham B5 7EG, UK
| | - Iain L C Chapple
- Periodontal Research Group, School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham B5 7EG, UK
| | - Praveen Sharma
- Periodontal Research Group, School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham B5 7EG, UK
- NIHR Birmingham Biomedical Research Centre, Birmingham B5 7EG, UK
| | - Sarah A Kuehne
- Oral Microbiology Group, School of Dentistry, Institute of Microbiology and Infection, College of Medical and Dental Sciences, University of Birmingham, Birmingham B5 7EG, UK
- Periodontal Research Group, School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham B5 7EG, UK
| | - Josefine Hirschfeld
- Periodontal Research Group, School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, Birmingham B5 7EG, UK
| |
Collapse
|
11
|
Gonzales M, Plener L, Armengaud J, Armstrong N, Chabrière É, Daudé D. Lactonase-mediated inhibition of quorum sensing largely alters phenotypes, proteome, and antimicrobial activities in Burkholderia thailandensis E264. Front Cell Infect Microbiol 2023; 13:1190859. [PMID: 37333853 PMCID: PMC10272358 DOI: 10.3389/fcimb.2023.1190859] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/15/2023] [Indexed: 06/20/2023] Open
Abstract
Introduction Burkholderia thailandensis is a study model for Burkholderia pseudomallei, a highly virulent pathogen, known to be the causative agent of melioidosis and a potential bioterrorism agent. These two bacteria use an (acyl-homoserine lactone) AHL-mediated quorum sensing (QS) system to regulate different behaviors including biofilm formation, secondary metabolite productions, and motility. Methods Using an enzyme-based quorum quenching (QQ) strategy, with the lactonase SsoPox having the best activity on B. thailandensis AHLs, we evaluated the importance of QS in B. thailandensis by combining proteomic and phenotypic analyses. Results We demonstrated that QS disruption largely affects overall bacterial behavior including motility, proteolytic activity, and antimicrobial molecule production. We further showed that QQ treatment drastically decreases B. thailandensis bactericidal activity against two bacteria (Chromobacterium violaceum and Staphylococcus aureus), while a spectacular increase in antifungal activity was observed against fungi and yeast (Aspergillus niger, Fusarium graminearum and Saccharomyces cerevisiae). Discussion This study provides evidence that QS is of prime interest when it comes to understanding the virulence of Burkholderia species and developing alternative treatments.
Collapse
Affiliation(s)
- Mélanie Gonzales
- Aix Marseille Université, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
- Gene&GreenTK, Marseille, France
| | | | - Jean Armengaud
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, Bagnols-sur-Cèze, France
| | | | - Éric Chabrière
- Aix Marseille Université, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | | |
Collapse
|
12
|
Chiou LL, Panariello BHD, Hamada Y, Gregory RL, Blanchard S, Duarte S. Comparison of In Vitro Biofilm Formation on Titanium and Zirconia Implants. BIOMED RESEARCH INTERNATIONAL 2023; 2023:8728499. [PMID: 37096222 PMCID: PMC10122594 DOI: 10.1155/2023/8728499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 11/23/2022] [Accepted: 12/08/2022] [Indexed: 04/26/2023]
Abstract
Background Peri-implant diseases are emerging issues in contemporary implant dentistry. As biofilms play a critical role in peri-implant diseases, the characteristic of resisting bacterial adhesion would be ideal for dental implants. The aims of the study were to compare titanium (Ti) and zirconia (Zr) implants regarding the amount of biofilm formation at different time frames and assess the distribution of biofilm on different aspects of dental implants. Methods Biofilm was developed on Ti and Zr dental implants with a peri-implant-related multispecies model with Streptococcus oralis, Actinomyces naeslundii, Veillonella dispar, and Porphyromonas gingivalis, for 3 and 14 days. Quantitative assessment was performed with the measurement of total bacterial viability (colony forming units, CFU/mg). Scanning electron microscopy (SEM) was used to evaluate biofilm formation on different aspects of the implants. Results Three-day-old biofilm on Ti implants was significantly higher than that on Zr implants (p < 0.001). The Ti and Zr groups were not significantly different for 14-day-old biofilm. SEM images demonstrated that 3-day-old biofilm on Zr implants was sparse while biofilm growth was more pronounced for 3-day-old biofilm on Ti implants and 14-day-old biofilm groups. It appeared that less biofilm formed on the valley compared to the thread top for 3-day-old biofilm on Zr implants. Differences between the valley and the thread top became indistinguishable with the development of mature biofilm. Conclusion While early formed biofilms show greater accumulation on Ti implants compared to Zr implants, older biofilms between the two groups are comparable. The distribution of biofilms was not uniform on different areas of implant threads during early biofilm development.
Collapse
Affiliation(s)
- Lan-Lin Chiou
- Department of Periodontology, Indiana University School of Dentistry, Indianapolis, IN, USA
| | - Beatriz H. D. Panariello
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA
| | - Yusuke Hamada
- Department of Periodontology, Indiana University School of Dentistry, Indianapolis, IN, USA
| | - Richard L. Gregory
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA
| | - Steven Blanchard
- Department of Periodontology, Indiana University School of Dentistry, Indianapolis, IN, USA
| | - Simone Duarte
- American Dental Association Science and Research Institute, Chicago, IL, USA
| |
Collapse
|
13
|
Zhao A, Sun J, Liu Y. Understanding bacterial biofilms: From definition to treatment strategies. Front Cell Infect Microbiol 2023; 13:1137947. [PMID: 37091673 PMCID: PMC10117668 DOI: 10.3389/fcimb.2023.1137947] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/09/2023] [Indexed: 04/08/2023] Open
Abstract
Bacterial biofilms are complex microbial communities encased in extracellular polymeric substances. Their formation is a multi-step process. Biofilms are a significant problem in treating bacterial infections and are one of the main reasons for the persistence of infections. They can exhibit increased resistance to classical antibiotics and cause disease through device-related and non-device (tissue) -associated infections, posing a severe threat to global health issues. Therefore, early detection and search for new and alternative treatments are essential for treating and suppressing biofilm-associated infections. In this paper, we systematically reviewed the formation of bacterial biofilms, associated infections, detection methods, and potential treatment strategies, aiming to provide researchers with the latest progress in the detection and treatment of bacterial biofilms.
Collapse
Affiliation(s)
- Ailing Zhao
- Department of Gastroenterology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong, China
| | - Jiazheng Sun
- Department of Vasculocardiology, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Yipin Liu
- Department of Gastroenterology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong, China
- *Correspondence: Yipin Liu,
| |
Collapse
|
14
|
Parga A, Muras A, Otero-Casal P, Arredondo A, Soler-Ollé A, Àlvarez G, Alcaraz LD, Mira A, Blanc V, Otero A. The quorum quenching enzyme Aii20J modifies in vitro periodontal biofilm formation. Front Cell Infect Microbiol 2023; 13:1118630. [PMID: 36816581 PMCID: PMC9932050 DOI: 10.3389/fcimb.2023.1118630] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 01/20/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction Recent studies have revealed the presence of N-acyl-homoserine lactones (AHLs) quorum sensing (QS) signals in the oral environment. Yet, their role in oral biofilm development remains scarcely investigated. The use of quorum quenching (QQ) strategies targeting AHLs has been described as efficient for the control of pathogenic biofilms. Here, we evaluate the use of a highly active AHL-targeting QQ enzyme, Aii20J, to modulate oral biofilm formation in vitro. Methods The effect of the QQ enzyme was studied in in vitro multispecies biofilms generated from oral samples taken from healthy donors and patients with periodontal disease. Subgingival samples were used as inocula, aiming to select members of the microbiota of the periodontal pocket niche in the in vitro biofilms. Biofilm formation abilities and microbial composition were studied upon treating the biofilms with the QQ enzyme Aii20J. Results and Discussion The addition of the enzyme resulted in significant biofilm mass reductions in 30 - 60% of the subgingival-derived biofilms, although standard AHLs could not be found in the supernatants of the cultured biofilms. Changes in biofilm mass were not accompanied by significant alterations of bacterial relative abundance at the genus level. The investigation of 125 oral supragingival metagenomes and a synthetic subgingival metagenome revealed a surprisingly high abundance and broad distribution of homologous of the AHL synthase HdtS and several protein families of AHL receptors, as well as an enormous presence of QQ enzymes, pointing to the existence of an intricate signaling network in oral biofilms that has been so far unreported, and should be further investigated. Together, our findings support the use of Aii20J to modulate polymicrobial biofilm formation without changing the microbiome structure of the biofilm. Results in this study suggest that AHLs or AHL-like molecules affect oral biofilm formation, encouraging the application of QQ strategies for oral health improvement, and reinforcing the importance of personalized approaches to oral biofilm control.
Collapse
Affiliation(s)
- Ana Parga
- Department of Microbiology and Parasitology, CIBUS-Faculty of Biology, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Andrea Muras
- Department of Microbiology and Parasitology, CIBUS-Faculty of Biology, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Paz Otero-Casal
- Department of Surgery and Medical-Surgical Specialties, Faculty of Medicine and Odontology, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Unit of Oral Health, Santa Comba-Negreira, (CS) SERGAS, Santiago de Compostela, Spain
| | - Alexandre Arredondo
- Department of Microbiology, Dentaid Research Center, Cerdanyola Del Vallès, Spain
| | - Agnès Soler-Ollé
- Department of Microbiology, Dentaid Research Center, Cerdanyola Del Vallès, Spain
| | - Gerard Àlvarez
- Department of Microbiology, Dentaid Research Center, Cerdanyola Del Vallès, Spain
| | - Luis D. Alcaraz
- Department of Cellular Biology, Faculty of Sciences, National Autonomous University of Mexico, Coyoacán, Mexico
| | - Alex Mira
- Department of Genomics and Health, FISABIO Foundation, Valencia, Spain
| | - Vanessa Blanc
- Department of Microbiology, Dentaid Research Center, Cerdanyola Del Vallès, Spain
| | - Ana Otero
- Department of Microbiology and Parasitology, CIBUS-Faculty of Biology, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- *Correspondence: Ana Otero,
| |
Collapse
|
15
|
Polizzi A, Donzella M, Nicolosi G, Santonocito S, Pesce P, Isola G. Drugs for the Quorum Sensing Inhibition of Oral Biofilm: New Frontiers and Insights in the Treatment of Periodontitis. Pharmaceutics 2022; 14:2740. [PMID: 36559234 PMCID: PMC9781207 DOI: 10.3390/pharmaceutics14122740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/01/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Chemical molecules are used by microorganisms to communicate with each other. Quorum sensing is the mechanism through which microorganisms regulate their population density and activity with chemical signaling. The inhibition of quorum sensing, called quorum quenching, may disrupt oral biofilm formation, which is the main etiological factor of oral diseases, including periodontitis. Periodontitis is a chronic inflammatory disorder of infectious etiology involving the hard and soft periodontal tissues and which is related to various systemic disorders, including cardiovascular diseases, diabetes and obesity. The employment of adjuvant therapies to traditional scaling and root planing is currently being studied to further reduce the impact of periodontitis. In this sense, using antibiotics and antiseptics involves non-negligible risks, such as antibiotic resistance phenomena and hinders the re-establishment of eubiosis. Different quorum sensing signal molecules have been identified in periodontal pathogenic oral bacteria. In this regard, quorum sensing inhibitors are emerging as some interesting solutions for the management of periodontitis. Therefore, the aim of this review is to summarize the current state of knowledge on the mechanisms of quorum sensing signal molecules produced by oral biofilm and to analyze the potential of quorum sensing inhibitors for the management of periodontitis.
Collapse
Affiliation(s)
- Alessandro Polizzi
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via Sofia 78, 95125 Catania, Italy
- Department of Surgical Sciences (DISC), University of Genova, 16132 Genoa, Italy
| | - Martina Donzella
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via Sofia 78, 95125 Catania, Italy
| | - Giada Nicolosi
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via Sofia 78, 95125 Catania, Italy
| | - Simona Santonocito
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via Sofia 78, 95125 Catania, Italy
| | - Paolo Pesce
- Department of Surgical Sciences (DISC), University of Genova, 16132 Genoa, Italy
| | - Gaetano Isola
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via Sofia 78, 95125 Catania, Italy
| |
Collapse
|
16
|
Sankar S, Yuwanati M, Sankar Ganesh P. Acyl Homoserine Lactone Inhibitors for Oral Squamous Cell Carcinoma - Novel Insights and Therapeutic Perspective. Med Hypotheses 2022. [DOI: 10.1016/j.mehy.2022.111003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
17
|
Farto-Vaamonde X, Diaz-Gomez L, Parga A, Otero A, Concheiro A, Alvarez-Lorenzo C. Perimeter and carvacrol-loading regulate angiogenesis and biofilm growth in 3D printed PLA scaffolds. J Control Release 2022; 352:776-792. [PMID: 36336096 DOI: 10.1016/j.jconrel.2022.10.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/07/2022] [Accepted: 10/30/2022] [Indexed: 11/13/2022]
Abstract
Carvacrol is a natural low-cost compound derived from oregano which presents anti-bacterial properties against both Gram-positive and Gram-negative bacteria. In this work, carvacrol-loaded PLA scaffolds were fabricated by 3D printing as platforms to support bone tissue regeneration while preventing biofilm development. Scaffolds were printed with or without a perimeter (lateral wall) mimicking the cortical structure of bone tissue to further evaluate if the lateral interconnectivity could affect the biological or antimicrobial properties of the scaffolds. Carvacrol incorporation was performed by loading either the PLA filament prior to 3D printing or the already printed PLA scaffold. The loading method determined carvacrol localization in the scaffolds and its release profile. Biphasic profiles were recorded in all cases, but scaffolds loaded post-printed released carvacrol much faster, with 50-80% released in the first day, compared to those containing carvacrol in PLA filament before printing which sustained the release for several weeks. The presence or absence of the perimeter did not affect the release rate, but total amount released. Tissue integration and vascularization of carvacrol-loaded scaffolds were evaluated in a chorioallantoic membrane model (CAM) using a novel quantitative micro-computed tomography (micro-CT) analysis approach. The obtained results confirmed the CAM tissue ingrowth and new vessel formation within the porous structure of the scaffolds after 7 days of incubation, without leading to hemorrhagic or cytotoxic effects. The absence of lateral wall facilitated lateral integration of the scaffolds in the host tissue, although increased the anisotropy of the mechanical properties. Scaffolds loaded with carvacrol post-printing showed antibiofilm activity against Staphylococcus aureus and Pseudomonas aeruginosa as observed in a decrease in CFU counting after biofilm detachment, changes in metabolic heat measured by calorimetry, and increased contact killing efficiency. In summary, this work demonstrated the feasibility of tuning carvacrol release rate and the amount released from PLA scaffolds to achieve antibiofilm protection without altering angiogenesis, which was mostly dependent on the perimeter density of the scaffolds.
Collapse
Affiliation(s)
- Xián Farto-Vaamonde
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma Group (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS), and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Luis Diaz-Gomez
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma Group (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS), and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ana Parga
- Departamento de Microbiología y Parasitología, Facultad de Biología, Edificio CiBUS, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ana Otero
- Departamento de Microbiología y Parasitología, Facultad de Biología, Edificio CiBUS, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma Group (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS), and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma Group (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS), and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| |
Collapse
|
18
|
Falà AK, Álvarez-Ordóñez A, Filloux A, Gahan CGM, Cotter PD. Quorum sensing in human gut and food microbiomes: Significance and potential for therapeutic targeting. Front Microbiol 2022; 13:1002185. [PMID: 36504831 PMCID: PMC9733432 DOI: 10.3389/fmicb.2022.1002185] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 10/17/2022] [Indexed: 11/27/2022] Open
Abstract
Human gut and food microbiomes interact during digestion. The outcome of these interactions influences the taxonomical composition and functional capacity of the resident human gut microbiome, with potential consequential impacts on health and disease. Microbe-microbe interactions between the resident and introduced microbiomes, which likely influence host colonisation, are orchestrated by environmental conditions, elements of the food matrix, host-associated factors as well as social cues from other microorganisms. Quorum sensing is one example of a social cue that allows bacterial communities to regulate genetic expression based on their respective population density and has emerged as an attractive target for therapeutic intervention. By interfering with bacterial quorum sensing, for instance, enzymatic degradation of signalling molecules (quorum quenching) or the application of quorum sensing inhibitory compounds, it may be possible to modulate the microbial composition of communities of interest without incurring negative effects associated with traditional antimicrobial approaches. In this review, we summarise and critically discuss the literature relating to quorum sensing from the perspective of the interactions between the food and human gut microbiome, providing a general overview of the current understanding of the prevalence and influence of quorum sensing in this context, and assessing the potential for therapeutic targeting of quorum sensing mechanisms.
Collapse
Affiliation(s)
- A. Kate Falà
- APC Microbiome Ireland, University College Cork, Cork, Ireland,School of Microbiology, University College Cork, Cork, Ireland,Food Bioscience Department, Teagasc Food Research Centre, Fermoy, Ireland
| | - Avelino Álvarez-Ordóñez
- Department of Food Hygiene and Technology and Institute of Food Science and Technology, Universidad de León, León, Spain
| | - Alain Filloux
- MRC Centre for Molecular Bacteriology and Infection, Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Cormac G. M. Gahan
- APC Microbiome Ireland, University College Cork, Cork, Ireland,School of Microbiology, University College Cork, Cork, Ireland,School of Pharmacy, University College Cork, Cork, Ireland
| | - Paul D. Cotter
- APC Microbiome Ireland, University College Cork, Cork, Ireland,Food Bioscience Department, Teagasc Food Research Centre, Fermoy, Ireland,*Correspondence: Paul D. Cotter,
| |
Collapse
|
19
|
Vasudevan S, Srinivasan P, Neelakantan P, Rayappan JBB, Solomon AP. Photoluminescence-Based Bioassay With Cysteamine-Capped TiO 2 Nanoparticles for the Selective Recognition of N-Acyl Homoserine Lactones. Front Bioeng Biotechnol 2021; 9:750933. [PMID: 34926417 PMCID: PMC8678280 DOI: 10.3389/fbioe.2021.750933] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 11/08/2021] [Indexed: 11/13/2022] Open
Abstract
Currently available diagnostic procedures for infections are laborious and time-consuming, resulting in a substantial financial burden by increasing morbidity, increased costs of hospitalization, and mortality. Therefore, innovative approaches to design diagnostic biomarkers are imperative to assist in the rapid and sensitive diagnosis of microbial infections. Acyl homoserine lactones (AHLs) are ubiquitous bacterial signaling molecules that are found to be significantly upregulated in infected sites. In this pioneering work, we have developed a simple photoluminescence-based assay using cysteamine-capped titanium oxide (TiO2) nanoparticles for AHL detection. The PL intensity variation of the oxygen defect state of TiO2 was used for the biosensing measurements. The bioassays were validated using two well-studied AHL molecules (C4-HSL and 3-oxo-C12 HSL) of an important human pathogen, Pseudomonas aeruginosa. The developed system has a maximum relative response of 98%. Furthermore, the efficacy of the system in simulated host urine using an artificial urine medium showed a linear detection range of 10-160 nM. Also, we confirmed the relative response and specificity of the system in detecting AHLs produced by P. aeruginosa in a temporal manner.
Collapse
Affiliation(s)
- Sahana Vasudevan
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Parthasarathy Srinivasan
- Nanosensors Laboratory, School of Electrical & Electronics Engineering, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), SASTRA Deemed University, Thanjavur, India
- Department of Electronics and Communication Engineering, Amrita School of Engineering, AMRITA Vishwa Vidyapeetham Chennai Campus, Chennai, India
| | - Prasanna Neelakantan
- Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong KongSAR, China
| | - John Bosco Balaguru Rayappan
- Nanosensors Laboratory, School of Electrical & Electronics Engineering, Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), SASTRA Deemed University, Thanjavur, India
| | - Adline Princy Solomon
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| |
Collapse
|
20
|
Moraskie M, Roshid MHO, O'Connor G, Dikici E, Zingg JM, Deo S, Daunert S. Microbial whole-cell biosensors: Current applications, challenges, and future perspectives. Biosens Bioelectron 2021; 191:113359. [PMID: 34098470 PMCID: PMC8376793 DOI: 10.1016/j.bios.2021.113359] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/13/2021] [Accepted: 05/15/2021] [Indexed: 12/22/2022]
Abstract
Microbial Whole-Cell Biosensors (MWCBs) have seen rapid development with the arrival of 21st century biological and technological capabilities. They consist of microbial species which produce, or limit the production of, a reporter protein in the presence of a target analyte. The quantifiable signal from the reporter protein can be used to determine the bioavailable levels of the target analyte in a variety of sample types at a significantly lower cost than most widely used and well-established analytical instrumentation. Furthermore, the versatile and robust nature of MWCBs shows great potential for their use in otherwise unavailable settings and environments. While MWCBs have been developed for use in biomedical, environmental, and agricultural monitoring, they still face various challenges before they can transition from the laboratory into industrialized settings like their enzyme-based counterparts. In this comprehensive and critical review, we describe the underlying working principles of MWCBs, highlight developments for their use in a variety of fields, detail challenges and current efforts to address them, and discuss exciting implementations of MWCBs helping redefine what is thought to be possible with this expeditiously evolving technology.
Collapse
Affiliation(s)
- Michael Moraskie
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA; The Dr. John T. Macdonald Foundation Biomedical Nanotechnology Institute - BioNIUM, University of Miami, Miami, FL, 33136, USA
| | - Md Harun Or Roshid
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA; The Dr. John T. Macdonald Foundation Biomedical Nanotechnology Institute - BioNIUM, University of Miami, Miami, FL, 33136, USA; Department of Chemistry, University of Miami, Miami, FL, 33146, USA
| | - Gregory O'Connor
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA; The Dr. John T. Macdonald Foundation Biomedical Nanotechnology Institute - BioNIUM, University of Miami, Miami, FL, 33136, USA
| | - Emre Dikici
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA; The Dr. John T. Macdonald Foundation Biomedical Nanotechnology Institute - BioNIUM, University of Miami, Miami, FL, 33136, USA
| | - Jean-Marc Zingg
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA; The Dr. John T. Macdonald Foundation Biomedical Nanotechnology Institute - BioNIUM, University of Miami, Miami, FL, 33136, USA
| | - Sapna Deo
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA; The Dr. John T. Macdonald Foundation Biomedical Nanotechnology Institute - BioNIUM, University of Miami, Miami, FL, 33136, USA
| | - Sylvia Daunert
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA; The Dr. John T. Macdonald Foundation Biomedical Nanotechnology Institute - BioNIUM, University of Miami, Miami, FL, 33136, USA; Department of Chemistry, University of Miami, Miami, FL, 33146, USA; The Miami Clinical and Translational Science Institute, University of Miami, Miami, FL, 33146, USA; Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, 33146, USA.
| |
Collapse
|
21
|
Parhi S, Pal S, Das SK, Ghosh P. Strategies toward development of antimicrobial biomaterials for dental healthcare applications. Biotechnol Bioeng 2021; 118:4590-4622. [PMID: 34599764 DOI: 10.1002/bit.27948] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/19/2021] [Accepted: 09/26/2021] [Indexed: 12/25/2022]
Abstract
Several approaches for elimination of oral pathogens are being explored at the present time since oral diseases remain prevalent affecting approximately 3.5 billion people worldwide. Need for antimicrobial biomaterials in dental healthcare include but is not restricted to designing resin composites and adhesives for prevention of dental caries. Constant efforts are also being made to develop antimicrobial strategies for clearance of endodontic space prior root canal treatment and for treatment of periimplantitis and periodontitis. This article discusses various conventional and nanotechnology-based strategies to achieve antimicrobial efficacy in dental biomaterials. Recent developments in the design and synthesis of antimicrobial peptides and antifouling zwitterionic polymers to effectively lessen the risks of antimicrobial drug resistance are also outlined in this review. Further, the role of contemporary strategies such as use of smart biomaterials, ionic solvent-based biomaterials and quorum quenchers incorporated biomaterials in the elimination of dental pathogens are described in detail. Lastly, we mentioned the approach of using polymers to print custom-made three-dimensional antibacterial dental products via additive manufacturing technologies. This review provides a critical perspective on the chemical, biomimetic, and engineering strategies intended for developing antimicrobial biomaterials that have the potential to substantially improve the dental health.
Collapse
Affiliation(s)
- Shivangi Parhi
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India
| | - Sreyasi Pal
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Sujoy K Das
- Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India.,Division of Infectious Diseases and Immunology, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Paulomi Ghosh
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India
| |
Collapse
|
22
|
Urvoy M, Lami R, Dreanno C, Daudé D, Rodrigues AMS, Gourmelon M, L'Helguen S, Labry C. Quorum sensing disruption regulates hydrolytic enzyme and biofilm production in estuarine bacteria. Environ Microbiol 2021; 23:7183-7200. [PMID: 34528354 DOI: 10.1111/1462-2920.15775] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/02/2021] [Accepted: 09/10/2021] [Indexed: 12/18/2022]
Abstract
Biofilms of heterotrophic bacteria cover organic matter aggregates and constitute hotspots of mineralization, primarily acting through extracellular hydrolytic enzyme production. Nevertheless, regulation of both biofilm and hydrolytic enzyme synthesis remains poorly investigated, especially in estuarine ecosystems. In this study, various bioassays, mass spectrometry and genomics approaches were combined to test the possible involvement of quorum sensing (QS) in these mechanisms. QS is a bacterial cell-cell communication system that relies notably on the emission of N-acylhomoserine lactones (AHLs). In our estuarine bacterial collection, we found that 28 strains (9%), mainly Vibrio, Pseudomonas and Acinetobacter isolates, produced at least 14 different types of AHLs encoded by various luxI genes. We then inhibited the AHL QS circuits of those 28 strains using a broad-spectrum lactonase preparation and tested whether biofilm production as well as β-glucosidase and leucine-aminopeptidase activities were impacted. Interestingly, we recorded contrasted responses, as biofilm production, dissolved and cell-bound β-glucosidase and leucine-aminopeptidase activities significantly increased in 4%-68% of strains but decreased in 0%-21% of strains. These findings highlight the key role of AHL-based QS in estuarine bacterial physiology and ultimately on biogeochemical cycles. They also point out the complexity of QS regulations within natural microbial assemblages.
Collapse
Affiliation(s)
- Marion Urvoy
- Ifremer, DYNECO, Plouzané, F-29280, France.,Université de Bretagne Occidentale, CNRS, IRD, Ifremer, UMR 6539, Laboratoire des Sciences de l'Environnement Marin (LEMAR), Plouzané, F-29280, France
| | - Raphaël Lami
- Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), 66650 Banyuls-sur-Mer, France
| | | | - David Daudé
- Gene&GreenTK, 19-21 Boulevard Jean Moulin, Marseille, 13005, France
| | - Alice M S Rodrigues
- Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), 66650 Banyuls-sur-Mer, France
| | | | - Stéphane L'Helguen
- Université de Bretagne Occidentale, CNRS, IRD, Ifremer, UMR 6539, Laboratoire des Sciences de l'Environnement Marin (LEMAR), Plouzané, F-29280, France
| | | |
Collapse
|
23
|
Willis JR, Saus E, Iraola-Guzmán S, Cabello-Yeves E, Ksiezopolska E, Cozzuto L, Bejarano LA, Andreu-Somavilla N, Alloza-Trabado M, Blanco A, Puig-Sola A, Broglio E, Carolis C, Ponomarenko J, Hecht J, Gabaldón T. Citizen-science based study of the oral microbiome in Cystic fibrosis and matched controls reveals major differences in diversity and abundance of bacterial and fungal species. J Oral Microbiol 2021; 13:1897328. [PMID: 34104346 PMCID: PMC8143623 DOI: 10.1080/20002297.2021.1897328] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Introduction: Cystic fibrosis (CF) is an autosomal genetic disease, associated with the production of excessively thick mucosa and with life-threatening chronic lung infections. The microbiota of the oral cavity can act as a reservoir or as a barrier for infectious microorganisms that can colonize the lungs. However, the specific composition of the oral microbiome in CF is poorly understood.Methods: In collaboration with CF associations in Spain, we collected oral rinse samples from 31 CF persons (age range 7-47) and matched controls, and then performed 16S rRNA metabarcoding and high-throughput sequencing, combined with culture and proteomics-based identification of fungi to survey the bacterial and fungal oral microbiome.Results: We found that CF is associated with less diverse oral microbiomes, which were characterized by higher prevalence of Candida albicans and differential abundances of a number of bacterial taxa that have implications in both the connection to lung infections in CF, as well as potential oral health concerns, particularly periodontitis and dental caries.Conclusion: Overall, our study provides a first global snapshot of the oral microbiome in CF. Future studies are required to establish the relationships between the composition of the oral and lung microbiomes in CF.
Collapse
Affiliation(s)
- Jesse R Willis
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Life Sciences Programme, Barcelona Supercomputing Centre (BSC-CNS) Jordi Girona, Barcelona, Spain.,Mechanisms of Disease Programme, Institute for Research in Biomedicine (IRB), the Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Ester Saus
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Life Sciences Programme, Barcelona Supercomputing Centre (BSC-CNS) Jordi Girona, Barcelona, Spain.,Mechanisms of Disease Programme, Institute for Research in Biomedicine (IRB), the Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Susana Iraola-Guzmán
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Life Sciences Programme, Barcelona Supercomputing Centre (BSC-CNS) Jordi Girona, Barcelona, Spain.,Mechanisms of Disease Programme, Institute for Research in Biomedicine (IRB), the Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Elena Cabello-Yeves
- Life Sciences Programme, Barcelona Supercomputing Centre (BSC-CNS) Jordi Girona, Barcelona, Spain.,Mechanisms of Disease Programme, Institute for Research in Biomedicine (IRB), the Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Ewa Ksiezopolska
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Life Sciences Programme, Barcelona Supercomputing Centre (BSC-CNS) Jordi Girona, Barcelona, Spain.,Mechanisms of Disease Programme, Institute for Research in Biomedicine (IRB), the Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Luca Cozzuto
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Experimental and Health Sciences Department, Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Luis A Bejarano
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Nuria Andreu-Somavilla
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Experimental and Health Sciences Department, Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Miriam Alloza-Trabado
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Experimental and Health Sciences Department, Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Andrea Blanco
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Anna Puig-Sola
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Experimental and Health Sciences Department, Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Elisabetta Broglio
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Experimental and Health Sciences Department, Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Carlo Carolis
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Experimental and Health Sciences Department, Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Julia Ponomarenko
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Experimental and Health Sciences Department, Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Jochen Hecht
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Experimental and Health Sciences Department, Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Toni Gabaldón
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Life Sciences Programme, Barcelona Supercomputing Centre (BSC-CNS) Jordi Girona, Barcelona, Spain.,Mechanisms of Disease Programme, Institute for Research in Biomedicine (IRB), the Barcelona Institute of Science and Technology, Barcelona, Spain.,Experimental and Health Sciences Department, Universitat Pompeu Fabra (UPF), Barcelona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
| |
Collapse
|
24
|
Sun X, Hill P, Liu J, Qian J, Ma Y, Zhou S. Marine-Source Quorum Quenching Enzyme YtnP to Improve Hygiene Quality in Dental Units. Mar Drugs 2021; 19:md19040225. [PMID: 33923695 PMCID: PMC8073825 DOI: 10.3390/md19040225] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 12/02/2022] Open
Abstract
Biofilm in dental unit water lines may pose a health risk to patients and dental practitioners. An AdiC-like quorum quenching enzyme, YtnP, was cloned from a deep-sea probiotic Bacillus velezensis, and heterologously expressed in E. coli to examine the application on the improvement of hygiene problems caused by biofilm infection of Pseudomonas aeruginosa in dental units. Pseudomonas bacteria were isolated from dental chair units and used to grow static biofilms in the laboratory. A water filter system was designed to test the antifouling activity of YtnP in Laboratory, to simulate the biofilm contamination on water filter in dental unit water lines. The results demonstrated that the enzyme of YtnP was able to degrade the N-acyl homoserine lactones, significantly inhibited the EPS generation, biofilm formation, and virulence factors production (pyocyanin and rhamnolipid) of P. aeruginosa, and was efficient on the antifouling against P. aeruginosa. The findings in this study indicated the possibility of YtnP as novel disinfectant reagent for hygiene treatment in dental units.
Collapse
Affiliation(s)
- Xiaohui Sun
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; (J.L.); (J.Q.); (Y.M.); (S.Z.)
- Correspondence: (X.S.); (P.H.); Tel.: +86-595-616-2305 (X.S.)
| | - Philip Hill
- School of Biosciences, Sutton Bonington Campus, University of Nottingham, Loughbrough LE12 5RD, UK
- Correspondence: (X.S.); (P.H.); Tel.: +86-595-616-2305 (X.S.)
| | - Jia Liu
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; (J.L.); (J.Q.); (Y.M.); (S.Z.)
| | - Jing Qian
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; (J.L.); (J.Q.); (Y.M.); (S.Z.)
| | - Yuting Ma
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; (J.L.); (J.Q.); (Y.M.); (S.Z.)
| | - Shufeng Zhou
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; (J.L.); (J.Q.); (Y.M.); (S.Z.)
| |
Collapse
|
25
|
Use of Quorum Sensing Inhibition Strategies to Control Microfouling. Mar Drugs 2021; 19:md19020074. [PMID: 33573187 PMCID: PMC7912365 DOI: 10.3390/md19020074] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/21/2021] [Accepted: 01/27/2021] [Indexed: 01/10/2023] Open
Abstract
Interfering with the quorum sensing bacterial communication systems has been proposed as a promising strategy to control bacterial biofilm formation, a key process in biofouling development. Appropriate in vitro biofilm-forming bacteria models are needed to establish screening methods for innovative anti-biofilm and anti-microfouling compounds. Four marine strains, two Pseudoalteromonas spp. and two Vibrio spp., were selected and studied with regard to their biofilm-forming capacity and sensitivity to quorum sensing (QS) inhibitors. Biofilm experiments were performed using two biofilm cultivation and quantification methods: the xCELLigence® system, which allows online monitoring of biofilm formation, and the active attachment model, which allows refreshment of the culture medium to obtain a strong biofilm that can be quantified with standard staining methods. Although all selected strains produced acyl-homoserine-lactone (AHL) QS signals, only the P. flavipulchra biofilm, measured with both quantification systems, was significantly reduced with the addition of the AHL-lactonase Aii20J without a significant effect on planktonic growth. Two-species biofilms containing P. flavipulchra were also affected by the addition of Aii20J, indicating an influence on the target bacterial strain as well as an indirect effect on the co-cultured bacterium. The use of xCELLigence® is proposed as a time-saving method to quantify biofilm formation and search for eco-friendly anti-microfouling compounds based on quorum sensing inhibition (QSI) strategies. The results obtained from these two in vitro biofilm formation methods revealed important differences in the response of biosensor bacteria to culture medium and conditions, indicating that several strains should be used simultaneously for screening purposes and the cultivation conditions should be carefully optimized for each specific purpose.
Collapse
|
26
|
Muras A, Mallo N, Otero-Casal P, Pose-Rodríguez JM, Otero A. Quorum sensing systems as a new target to prevent biofilm-related oral diseases. Oral Dis 2020; 28:307-313. [PMID: 33080080 DOI: 10.1111/odi.13689] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 09/23/2020] [Accepted: 10/11/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The present study summarizes the current knowledge on the role of bacterial extracellular signaling systems, known as quorum sensing (QS), in oral biofilm formation, and on the possibility of blocking these microbial communication systems as a potential approach to prevent and treat oral infectious diseases. METHODS A detailed literature review of the current knowledge of QS in the oral cavity was performed, using the databases MEDLINE (through PubMed) and Web of Science. RESULTS Accumulating direct and indirect evidence indicates an important role of QS molecules in the oral microbial ecosystem. CONCLUSIONS The mechanisms regulating gene expression through bacterial communication systems constitute a promising target to control oral biofilm formation. Although cell-to-cell communication is pivotal for biofilm formation of many pathogenic bacteria, knowledge concerning microbial interactions and signaling processes within multispecies biofilms in the oral cavity is still limited.
Collapse
Affiliation(s)
- Andrea Muras
- Department of Microbiology and Parasitology, Faculty of Biology-CIBUS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Natalia Mallo
- Department of Microbiology and Parasitology, Faculty of Biology-CIBUS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Paz Otero-Casal
- Department of Surgery and Medical-Surgical Specialty, Faculty of Medicine and Dentistry, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.,Unit of Oral Health, C.S. Santa Comba-Negreira, SERGAS, Santa Comba, Spain
| | - José M Pose-Rodríguez
- Department of Surgery and Medical-Surgical Specialty, Faculty of Medicine and Dentistry, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Ana Otero
- Department of Microbiology and Parasitology, Faculty of Biology-CIBUS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| |
Collapse
|
27
|
Mayer C, Muras A, Parga A, Romero M, Rumbo-Feal S, Poza M, Ramos-Vivas J, Otero A. Quorum Sensing as a Target for Controlling Surface Associated Motility and Biofilm Formation in Acinetobacter baumannii ATCC ® 17978 TM. Front Microbiol 2020; 11:565548. [PMID: 33101239 PMCID: PMC7554515 DOI: 10.3389/fmicb.2020.565548] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/10/2020] [Indexed: 12/14/2022] Open
Abstract
The important nosocomial pathogen Acinetobacter baumannii presents a quorum sensing (QS) system (abaI/abaR) mediated by acyl-homoserine-lactones (AHLs) and several quorum quenching (QQ) enzymes. However, the roles of this complex network in the control of the expression of important virulence-related phenotypes such as surface-associated motility and biofilm formation is not clear. Therefore, the effect of the mutation of the AHL synthase AbaI, and the exogenous addition of the QQ enzyme Aii20J on surface-associated motility and biofilm formation by A. baumannii ATCC® 17978TM was studied in detail. The effect of the enzyme on biofilm formation by several multidrug-resistant A. baumannii clinical isolates differing in their motility pattern was also tested. We provide evidence that a functional QS system is required for surface-associated motility and robust biofilm formation in A. baumannii ATCC® 17978TM. Important differences were found with the well-studied strain A. nosocomialis M2 regarding the relevance of the QS system depending on environmental conditions The in vitro biofilm-formation capacity of A. baumannii clinical strains was highly variable and was not related to the antibiotic resistance or surface-associated motility profiles. A high variability was also found in the sensitivity of the clinical strains to the action of the QQ enzyme, revealing important differences in virulence regulation between A. baumannii isolates and confirming that studies restricted to a single strain are not representative for the development of novel antimicrobial strategies. Extracellular DNA emerges as a key component of the extracellular matrix in A. baumannii biofilms since the combined action of the QQ enzyme Aii20J and DNase reduced biofilm formation in all tested strains. Results demonstrate that QQ strategies in combination with other enzymatic treatments such as DNase could represent an alternative approach for the prevention of A. baumannii colonization and survival on surfaces and the prevention and treatment of infections caused by this pathogen.
Collapse
Affiliation(s)
- Celia Mayer
- Departamento de Microbioloxía e Parasitoloxía, Facultade de Bioloxía, Edificio CIBUS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.,National Biofilms Innovation Centre, Biodiscovery Institute and School of Life Sciences, University of Nottingham, Nottingham, United Kingdom
| | - Andrea Muras
- Departamento de Microbioloxía e Parasitoloxía, Facultade de Bioloxía, Edificio CIBUS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Ana Parga
- Departamento de Microbioloxía e Parasitoloxía, Facultade de Bioloxía, Edificio CIBUS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Manuel Romero
- National Biofilms Innovation Centre, Biodiscovery Institute and School of Life Sciences, University of Nottingham, Nottingham, United Kingdom
| | - Soraya Rumbo-Feal
- Microbioloxía, Instituto de Investigación Biomédica da Coruña, Centro de Investigacións Científicas Avanzadas da Coruña, Universidade da Coruña, A Coruña, Spain
| | - Margarita Poza
- Microbioloxía, Instituto de Investigación Biomédica da Coruña, Centro de Investigacións Científicas Avanzadas da Coruña, Universidade da Coruña, A Coruña, Spain
| | - José Ramos-Vivas
- Servicio de Microbiología, Hospital Universitario Marqués de Valdecilla-Instituto de Investigación Valdecilla, Santander, Spain
| | - Ana Otero
- Departamento de Microbioloxía e Parasitoloxía, Facultade de Bioloxía, Edificio CIBUS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| |
Collapse
|