1
|
Chen F, Zhao M, Zhang B, Zhao M, Ma Y. Surface Plasmon Resonance-Enhanced CdS/FTO Heterojunction for Cu 2+ Detection. SENSORS (BASEL, SWITZERLAND) 2024; 24:3809. [PMID: 38931593 PMCID: PMC11207611 DOI: 10.3390/s24123809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/09/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
Copper ion (Cu2+) pollution poses a serious threat to marine ecology and fisheries. However, the complexity of seawater and its interference factors make the online detection of Cu2+ quite challenging. To address this issue, we introduce the concept of the photo-assisted adjustment barrier effect into electrochemical detection, using it as a driving force to generate electrochemical responses. The Schottky barrier demonstrates a remarkable regulatory influence on the electrochemical response under photoexcitation, facilitating the response through Cu2+ adsorption. We developed a 4-MBA-AuNPs/CdS/FTO composite that serves as a sensitive platform for Cu2+ detection, achieving a detection limit of 70 nM. Notably, the photo-assisted adjustment of the barrier effect effectively counters the interference posed by ions in seawater, ensuring accurate detection. Furthermore, the sensor exhibits a promising recovery rate (99.62-104.9%) in real seawater samples, highlighting its practical applications. This innovative approach utilizing the photo-assisted adjustment barrier effect offers a promising path for developing electrochemical sensors that can withstand interference.
Collapse
Affiliation(s)
| | | | | | - Minggang Zhao
- School of Material Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, China
| | - Ye Ma
- School of Material Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, China
| |
Collapse
|
2
|
Gvozdev MY, Turomsha IS, Savich VV, Faletrov YV, Sidarenka AV, Shkumatov VM, Loginova NV. Sterically hindered phenolic derivatives: effect on the production of Pseudomonas aeruginosa virulence factors, high-throughput virtual screening and ADME properties prediction. Arch Microbiol 2024; 206:91. [PMID: 38316691 DOI: 10.1007/s00203-023-03827-y] [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: 11/16/2023] [Revised: 12/13/2023] [Accepted: 12/30/2023] [Indexed: 02/07/2024]
Abstract
Inhibition of quorum sensing is considered to be an effective strategy of control and treatment of a wide range of acute and persistent infections. Pseudomonas aeruginosa is an opportunistic bacterium with a high adaptation potential that contributes to healthcare-associated infections. In the present study, the effects of the synthesized hybrid structures bearing sterically hindered phenolic and heterocyclic moieties in a single scaffold on the production of virulence factors by P. aeruginosa were determined. It has been shown that the obtained compounds significantly reduce both pyocyanin and alginate production and stimulate the biosynthesis of siderophores in vitro, which may be attributed to their iron-chelating properties. The results of docking-based inverse high-throughput virtual screening indicate that transcription regulator LasR and Cu-transporter OPRC could be potential molecular targets for these compounds. Investigation of the impact small molecules exert on the molecular mechanisms of the production of bacterial virulence factors may pave the way for the design and development of novel antibacterial agents.
Collapse
Affiliation(s)
- Maxim Y Gvozdev
- Faculty of Chemistry, Belarusian State University, Leningradskaya Str. 14, Minsk, Belarus
- Research Institute for Physical Chemical Problems, Belarusian State University, Leningradskaya Str. 14, Minsk, Belarus
| | - Iveta S Turomsha
- Faculty of Chemistry, Belarusian State University, Leningradskaya Str. 14, Minsk, Belarus
- Research Institute for Physical Chemical Problems, Belarusian State University, Leningradskaya Str. 14, Minsk, Belarus
| | - Viktoryia V Savich
- Institute of Microbiology of the National Academy of Sciences of Belarus, Minsk, Belarus
| | - Yaroslav V Faletrov
- Faculty of Chemistry, Belarusian State University, Leningradskaya Str. 14, Minsk, Belarus
- Research Institute for Physical Chemical Problems, Belarusian State University, Leningradskaya Str. 14, Minsk, Belarus
| | - Anastasiya V Sidarenka
- Institute of Microbiology of the National Academy of Sciences of Belarus, Minsk, Belarus
| | - Vladimir M Shkumatov
- Faculty of Chemistry, Belarusian State University, Leningradskaya Str. 14, Minsk, Belarus
- Research Institute for Physical Chemical Problems, Belarusian State University, Leningradskaya Str. 14, Minsk, Belarus
| | - Natalia V Loginova
- Faculty of Chemistry, Belarusian State University, Leningradskaya Str. 14, Minsk, Belarus.
- Research Institute for Physical Chemical Problems, Belarusian State University, Leningradskaya Str. 14, Minsk, Belarus.
| |
Collapse
|
3
|
Qu M, Zhu H, Zhang X. Extracellular vesicle-mediated regulation of macrophage polarization in bacterial infections. Front Microbiol 2022; 13:1039040. [PMID: 36619996 PMCID: PMC9815515 DOI: 10.3389/fmicb.2022.1039040] [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: 09/07/2022] [Accepted: 11/25/2022] [Indexed: 12/24/2022] Open
Abstract
Extracellular vesicles (EVs) are nanoscale membrane-enveloped vesicles secreted by prokaryotic and eukaryotic cells, which are commonly defined as membrane vesicles (MVs) and exosomes, respectively. They play critical roles in the bacteria-bacteria and bacteria-host interactions. In infectious diseases caused by bacteria, as the first line of defense against pathogens, the macrophage polarization mode commonly determines the success or failure of the host's response to pathogen aggression. M1-type macrophages secrete pro-inflammatory factors that support microbicidal activity, while alternative M2-type macrophages secrete anti-inflammatory factors that perform an antimicrobial immune response but partially allow pathogens to replicate and survive intracellularly. Membrane vesicles (MVs) released from bacteria as a distinctive secretion system can carry various components, including bacterial effectors, nucleic acids, or lipids to modulate macrophage polarization in host-pathogen interaction. Similar to MVs, bacteria-infected macrophages can secrete exosomes containing a variety of components to manipulate the phenotypic polarization of "bystander" macrophages nearby or long distance to differentiate into type M1 or M2 to regulate the course of inflammation. Exosomes can also repair tissue damage associated with the infection by upregulating the levels of anti-inflammatory factors, downregulating the pro-inflammatory factors, and regulating cellular biological behaviors. The study of the mechanisms by which EVs modulate macrophage polarization has opened new frontiers in delineating the molecular machinery involved in bacterial pathogenesis and challenges in providing new strategies for diagnosis and therapy.
Collapse
Affiliation(s)
- Mingjuan Qu
- School of Life Sciences, Ludong University, Yantai, China,Yantai Key Laboratory of Animal Pathogenetic Microbiology and Immunology, Yantai, China
| | - Hongwei Zhu
- School of Life Sciences, Ludong University, Yantai, China,Yantai Key Laboratory of Animal Pathogenetic Microbiology and Immunology, Yantai, China,Shandong Provincial Key Laboratory of Quality Safety Monitoring and Risk Assessment for Animal Products, Jinan, China
| | - Xingxiao Zhang
- School of Life Sciences, Ludong University, Yantai, China,Yantai Key Laboratory of Animal Pathogenetic Microbiology and Immunology, Yantai, China,Shandong Breeding Environmental Control Engineering Laboratory, Yantai, China,*Correspondence: Xingxiao Zhang, ✉
| |
Collapse
|
4
|
Cui G, Zhang Y, Xu X, Liu Y, Li Z, Wu M, Liu J, Gan J, Liang H. PmiR senses 2-methylisocitrate levels to regulate bacterial virulence in Pseudomonas aeruginosa. SCIENCE ADVANCES 2022; 8:eadd4220. [PMID: 36475801 PMCID: PMC9728974 DOI: 10.1126/sciadv.add4220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 11/02/2022] [Indexed: 06/17/2023]
Abstract
To adapt to changes in environmental cues, Pseudomonas aeruginosa produces an array of virulence factors to survive the host immune responses during infection. Metabolic products contribute to bacterial virulence; however, only a limited number of these signaling receptors have been explored in detail for their ability to modulate virulence in bacteria. Here, we characterize the metabolic pathway of 2-methylcitrate cycle in P. aeruginosa and unveil that PmiR served as a receptor of 2-methylisocitrate (MIC) to govern bacterial virulence. Crystallographic studies and structural-guided mutagenesis uncovered several residues crucial for PmiR's allosteric activation by MIC. We also demonstrated that PmiR directly repressed the pqs quorum-sensing system and subsequently inhibited pyocyanin production. Moreover, mutation of pmiR reduces bacterial survival in a mouse model of acute pneumonia infection. Collectively, this study identified P. aeruginosa PmiR as an important metabolic sensor for regulating expression of bacterial virulence genes to adapt to the harsh environments.
Collapse
Affiliation(s)
- Guoyan Cui
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an, ShaanXi, China
| | - Yixi Zhang
- Shanghai Public Health Clinical Center, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Xuejie Xu
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an, ShaanXi, China
| | - Yingying Liu
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, USA
| | - Zhuang Li
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an, ShaanXi, China
| | - Min Wu
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, USA
| | - Jianling Liu
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an, ShaanXi, China
| | - Jianhua Gan
- Shanghai Public Health Clinical Center, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Haihua Liang
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi’an, ShaanXi, China
- College of Medicine, Southern University of Science and Technology, Shenzhen, China
| |
Collapse
|
5
|
Novoa-Aponte L, Argüello JM. Unique underlying principles shaping copper homeostasis networks. J Biol Inorg Chem 2022; 27:509-528. [PMID: 35802193 PMCID: PMC9470648 DOI: 10.1007/s00775-022-01947-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/27/2022] [Indexed: 12/27/2022]
Abstract
Abstract Copper is essential in cells as a cofactor for key redox enzymes. Bacteria have acquired molecular components that sense, uptake, distribute, and expel copper ensuring that cuproenzymes are metallated and steady-state metal levels are maintained. Toward preventing deleterious reactions, proteins bind copper ions with high affinities and transfer the metal via ligand exchange, warranting that copper ions are always complexed. Consequently, the directional copper distribution within cell compartments and across cell membranes requires specific dynamic interactions and metal exchange between cognate holo-apo protein partners. These metal exchange reactions are determined by thermodynamic and kinetics parameters and influenced by mass action. Then, copper distribution can be conceptualized as a molecular system of singular interacting elements that maintain a physiological copper homeostasis. This review focuses on the impact of copper high-affinity binding and exchange reactions on the homeostatic mechanisms, the conceptual models to describe the cell as a homeostatic system, the various molecule functions that contribute to copper homeostasis, and the alternative system architectures responsible for copper homeostasis in model bacteria. Graphical Abstract ![]()
Collapse
Affiliation(s)
- Lorena Novoa-Aponte
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 60 Prescott St, Worcester, MA, 01605, USA.,Genetics and Metabolism Section, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD, 20892, USA
| | - José M Argüello
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, 60 Prescott St, Worcester, MA, 01605, USA.
| |
Collapse
|
6
|
Pseudomonas aeruginosa: pathogenesis, virulence factors, antibiotic resistance, interaction with host, technology advances and emerging therapeutics. Signal Transduct Target Ther 2022; 7:199. [PMID: 35752612 PMCID: PMC9233671 DOI: 10.1038/s41392-022-01056-1] [Citation(s) in RCA: 241] [Impact Index Per Article: 120.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 06/04/2022] [Accepted: 06/08/2022] [Indexed: 02/05/2023] Open
Abstract
Pseudomonas aeruginosa (P. aeruginosa) is a Gram-negative opportunistic pathogen that infects patients with cystic fibrosis, burn wounds, immunodeficiency, chronic obstructive pulmonary disorder (COPD), cancer, and severe infection requiring ventilation, such as COVID-19. P. aeruginosa is also a widely-used model bacterium for all biological areas. In addition to continued, intense efforts in understanding bacterial pathogenesis of P. aeruginosa including virulence factors (LPS, quorum sensing, two-component systems, 6 type secretion systems, outer membrane vesicles (OMVs), CRISPR-Cas and their regulation), rapid progress has been made in further studying host-pathogen interaction, particularly host immune networks involving autophagy, inflammasome, non-coding RNAs, cGAS, etc. Furthermore, numerous technologic advances, such as bioinformatics, metabolomics, scRNA-seq, nanoparticles, drug screening, and phage therapy, have been used to improve our understanding of P. aeruginosa pathogenesis and host defense. Nevertheless, much remains to be uncovered about interactions between P. aeruginosa and host immune responses, including mechanisms of drug resistance by known or unannotated bacterial virulence factors as well as mammalian cell signaling pathways. The widespread use of antibiotics and the slow development of effective antimicrobials present daunting challenges and necessitate new theoretical and practical platforms to screen and develop mechanism-tested novel drugs to treat intractable infections, especially those caused by multi-drug resistance strains. Benefited from has advancing in research tools and technology, dissecting this pathogen's feature has entered into molecular and mechanistic details as well as dynamic and holistic views. Herein, we comprehensively review the progress and discuss the current status of P. aeruginosa biophysical traits, behaviors, virulence factors, invasive regulators, and host defense patterns against its infection, which point out new directions for future investigation and add to the design of novel and/or alternative therapeutics to combat this clinically significant pathogen.
Collapse
|
7
|
Acquisition of ionic copper by the bacterial outer membrane protein OprC through a novel binding site. PLoS Biol 2021; 19:e3001446. [PMID: 34762655 PMCID: PMC8610252 DOI: 10.1371/journal.pbio.3001446] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 11/23/2021] [Accepted: 10/18/2021] [Indexed: 11/19/2022] Open
Abstract
Copper, while toxic in excess, is an essential micronutrient in all kingdoms of life due to its essential role in the structure and function of many proteins. Proteins mediating ionic copper import have been characterised in detail for eukaryotes, but much less so for prokaryotes. In particular, it is still unclear whether and how gram-negative bacteria acquire ionic copper. Here, we show that Pseudomonas aeruginosa OprC is an outer membrane, TonB-dependent transporter that is conserved in many Proteobacteria and which mediates acquisition of both reduced and oxidised ionic copper via an unprecedented CxxxM-HxM metal binding site. Crystal structures of wild-type and mutant OprC variants with silver and copper suggest that acquisition of Cu(I) occurs via a surface-exposed “methionine track” leading towards the principal metal binding site. Together with whole-cell copper quantitation and quantitative proteomics in a murine lung infection model, our data identify OprC as an abundant component of bacterial copper biology that may enable copper acquisition under a wide range of conditions. How do Gram-negative bacteria acquire copper? This study shows that the outer membrane protein OprC from Pseudomonas aeruginosa is abundant during infection and mediates highly selective acquisition of both copper redox states via an extracellular "methionine track" and an unprecedented near-irreversible binding site.
Collapse
|
8
|
Transcriptomic Analysis of Pseudomonas aeruginosa Response to Pine Honey via RNA Sequencing Indicates Multiple Mechanisms of Antibacterial Activity. Foods 2021; 10:foods10050936. [PMID: 33923242 PMCID: PMC8145095 DOI: 10.3390/foods10050936] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/19/2021] [Accepted: 04/22/2021] [Indexed: 12/12/2022] Open
Abstract
Pine honey is a unique type of honeydew honey produced exclusively in Eastern Mediterranean countries like Greece and Turkey. Although the antioxidant and anti-inflammatory properties of pine honey are well documented, few studies have investigated so far its antibacterial activity. This study investigates the antibacterial effects of pine honey against P. aeruginosa PA14 at the molecular level using a global transcriptome approach via RNA-sequencing. Pine honey treatment was applied at sub-inhibitory concentration and short exposure time (0.5× of minimum inhibitory concentration –MIC- for 45 min). Pine honey induced the differential expression (>two-fold change and p ≤ 0.05) of 463 genes, with 274 of them being down-regulated and 189 being up-regulated. Gene ontology (GO) analysis revealed that pine honey affected a wide range of biological processes (BP). The most affected down-regulated BP GO terms were oxidation-reduction process, transmembrane transport, proteolysis, signal transduction, biosynthetic process, phenazine biosynthetic process, bacterial chemotaxis, and antibiotic biosynthetic process. The up-regulated BP terms, affected by pine honey treatment, were those related to the regulation of DNA-templated transcription, siderophore transport, and phosphorylation. Pathway analysis revealed that pine honey treatment significantly affected two-component regulatory systems, ABC transporter systems, quorum sensing, bacterial chemotaxis, biofilm formation and SOS response. These data collectively indicate that multiple mechanisms of action are implicated in antibacterial activity exerted by pine honey against P. aeruginosa.
Collapse
|
9
|
Renieris G, Droggiti DE, Katrini K, Koufargyris P, Gkavogianni T, Karakike E, Antonakos N, Damoraki G, Karageorgos A, Sabracos L, Katsouda A, Jentho E, Weis S, Wang R, Bauer M, Szabo C, Platoni K, Kouloulias V, Papapetropoulos A, Giamarellos-Bourboulis EJ. Host cystathionine-γ lyase derived hydrogen sulfide protects against Pseudomonas aeruginosa sepsis. PLoS Pathog 2021; 17:e1009473. [PMID: 33770141 PMCID: PMC8051778 DOI: 10.1371/journal.ppat.1009473] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 04/16/2021] [Accepted: 03/12/2021] [Indexed: 11/18/2022] Open
Abstract
Hydrogen sulfide (H2S) has recently been recognized as a novel gaseous transmitter with several anti-inflammatory properties. The role of host- derived H2S in infections by Pseudomonas aeruginosa was investigated in clinical and mouse models. H2S concentrations and survival was assessed in septic patients with lung infection. Animal experiments using a model of severe systemic multidrug-resistant P. aeruginosa infection were performed using mice with a constitutive knock-out of cystathionine-γ lyase (Cse) gene (Cse-/-) and wild-type mice with a physiological expression (Cse+/+). Experiments were repeated in mice after a) treatment with cyclophosphamide; b) bone marrow transplantation (BMT) from a Cse+/+ donor; c) treatment with H2S synthesis inhibitor aminooxyacetic acid (ΑΟΑΑ) or propargylglycine (PAG) and d) H2S donor sodium thiosulfate (STS) or GYY3147. Bacterial loads and myeloperoxidase activity were measured in tissue samples. The expression of quorum sensing genes (QS) was determined in vivo and in vitro. Cytokine concentration was measured in serum and incubated splenocytes. Patients survivors at day 28 had significantly higher serum H2S compared to non-survivors. A cut- off point of 5.3 μΜ discriminated survivors with sensitivity 92.3%. Mortality after 28 days was 30.9% and 93.7% in patients with H2S higher and less than 5.3 μΜ (p = 7 x 10-6). In mice expression of Cse and application of STS afforded protection against infection with multidrug-resistant P. aeruginosa. Cyclophosphamide pretreatment eliminated the survival benefit of Cse+/+ mice, whereas BMT increased the survival of Cse-/- mice. Cse-/- mice had increased pathogen loads compared to Cse+/+ mice. Phagocytic activity of leukocytes from Cse-/- mice was reduced but was restored after H2S supplementation. An H2S dependent down- regulation of quorum sensing genes of P.aeruginosa could be demonstrated in vivo and in vitro. Endogenous H2S is a potential independent parameter correlating with the outcome of P. aeruginosa. H2S provides resistance to infection by MDR bacterial pathogens.
Collapse
Affiliation(s)
- Georgios Renieris
- 4 Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Dionysia-Eirini Droggiti
- 4 Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Konstantina Katrini
- 4 Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Panagiotis Koufargyris
- 4 Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Theologia Gkavogianni
- 4 Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Eleni Karakike
- 4 Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Nikolaos Antonakos
- 4 Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Georgia Damoraki
- 4 Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Athanasios Karageorgos
- 4 Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Labros Sabracos
- 4 Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Antonia Katsouda
- Center of Clinical, Experimental Surgery & Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Elisa Jentho
- Department of Anesthesiology and Intensive Care, Jena University Hospital, Jena, Germany
- Institute for Infectious Disease and Infection Control, Jena University Hospital, Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany
| | - Sebastian Weis
- Department of Anesthesiology and Intensive Care, Jena University Hospital, Jena, Germany
- Institute for Infectious Disease and Infection Control, Jena University Hospital, Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany
| | - Rui Wang
- Department of Biology, York University, Toronto, Canada
| | - Michael Bauer
- Department of Anesthesiology and Intensive Care, Jena University Hospital, Jena, Germany
| | - Csaba Szabo
- Department of Anaesthesiology, University of Texas Medical Branch, Galveston, Texas, United States of America
- Chair of Pharmacology, Department of Medicine, University of Fribourg, Fribourg, Switzerland
| | - Kalliopi Platoni
- 2 Department of Radiology, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Vasilios Kouloulias
- 2 Department of Radiology, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Andreas Papapetropoulos
- Center of Clinical, Experimental Surgery & Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | | |
Collapse
|
10
|
Johnston EL, Heras B, Kufer TA, Kaparakis-Liaskos M. Detection of Bacterial Membrane Vesicles by NOD-Like Receptors. Int J Mol Sci 2021; 22:ijms22031005. [PMID: 33498269 PMCID: PMC7863931 DOI: 10.3390/ijms22031005] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/15/2021] [Accepted: 01/15/2021] [Indexed: 01/18/2023] Open
Abstract
Bacterial membrane vesicles (BMVs) are nanoparticles produced by both Gram-negative and Gram-positive bacteria that can function to modulate immunity in the host. Both outer membrane vesicles (OMVs) and membrane vesicles (MVs), which are released by Gram-negative and Gram-positive bacteria, respectively, contain cargo derived from their parent bacterium, including immune stimulating molecules such as proteins, lipids and nucleic acids. Of these, peptidoglycan (PG) and lipopolysaccharide (LPS) are able to activate host innate immune pattern recognition receptors (PRRs), known as NOD-like receptors (NLRs), such as nucleotide-binding oligomerisation domain-containing protein (NOD) 1, NOD2 and NLRP3. NLR activation is a key driver of inflammation in the host, and BMVs derived from both pathogenic and commensal bacteria have been shown to package PG and LPS in order to modulate the host immune response using NLR-dependent mechanisms. Here, we discuss the packaging of immunostimulatory cargo within OMVs and MVs, their detection by NLRs and the cytokines produced by host cells in response to their detection. Additionally, commensal derived BMVs are thought to shape immunity and contribute to homeostasis in the gut, therefore we also highlight the interactions of commensal derived BMVs with NLRs and their roles in limiting inflammatory diseases.
Collapse
Affiliation(s)
- Ella L Johnston
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora 3086, Australia
- Research Centre for Extracellular Vesicles, School of Molecular Sciences, La Trobe University, Bundoora 3086, Australia
| | - Begoña Heras
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Sciences, La Trobe University, Bundoora 3086, Australia
| | - Thomas A Kufer
- Department of Immunology, Institute for Nutritional Medicine, University of Hohenheim, 70593 Stuttgart, Germany
| | - Maria Kaparakis-Liaskos
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora 3086, Australia
- Research Centre for Extracellular Vesicles, School of Molecular Sciences, La Trobe University, Bundoora 3086, Australia
| |
Collapse
|