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Gokhale KM, Patravale V, Pingale R, Pandey P, Vavilala SL. Se-functionalized ZIF-8 nanoparticles: synthesis, characterization and disruption of biofilms and quorum sensing in Serratia marcescens. Biomed Mater 2024; 19:055020. [PMID: 39025122 DOI: 10.1088/1748-605x/ad6549] [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: 04/19/2024] [Accepted: 07/18/2024] [Indexed: 07/20/2024]
Abstract
The majority of research on nanomaterials has been concentrated on metal nanoparticles since they are easily made and manipulated. Nanomaterials have shown a wide range of applications in biology. Nevertheless, their bioactivity declines due to their extreme susceptibility to and novel Se@ZIF-8 by chemical method. The sizes and morphologies of Se (0) and Se@ZIFchemical and physical stimuli. The goal of encapsulating these nanomaterials in a matrix is gradually being pursued, which boosts their affordability, stability, and usability. Metal-organic frameworks, often known as MOFs, have the potential to be the best platforms for encapsulating metal nanoparticles due to their well-defined frameworks, persistent porosity, and flexibility in modification. In this investigation, we report the synthesis and optimization of polyvinylpyrrolidone-stabilized Se(0) nanoparticles -8 were affected by the ratios of Se/Zn2+and [hmim]/Zn2+used. The optimized Se@ZIF-8 nanoparticles exhibited a particle size and zeta potential of 319 nm and -34 mv respectively. Transmission electron microscopy displayed spherical morphology for Se(0) nanoparticles, whereas the surface morphology of novel Se@ZIF-8 nanoparticles was drastically changed to hexagonal shaped structures with smooth surface morphologies in scanning electron microscopy (SEM). The DTA, TG/DTG, XRD analysis confirmed the presence of novel Se incorporated ZIF-8 nanoparticulate framework. The synthesized novel Se@ZIF-8 nanoparticles showed efficient antibacterial activity as evidenced by low MIC values. Interestingly, these Se@ZIF-8 NPs not only inhibited biofilm formation inS. marcescens,but also effectively eradicated mature biofilms by degrading the eDNA of the EPS layer. It was validated by confocal laser scanning microscopy and SEM analysis. It was observed that Se@ZIF-8 targeted the Quroum Sensing pathway and reduced its associated virulence factors production. This work opens up a different approach of Se@ZIF-8 nanoparticles as novel antibiotics to treat biofilm-associated infections caused byS. marcescensand offer a solution for antimicrobial resistance.
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Affiliation(s)
- Kunal M Gokhale
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM's NMIMS, V.L. Mehta Road, Vile Parle, Mumbai 400056, India
| | - Vandana Patravale
- Institute of Chemical Technology, Department of Pharm. Sciences and Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India
| | - Rutuja Pingale
- Dr. L. H. Hiranandani College of Pharmacy, Ulhasnagar 421003, India
| | - Pooja Pandey
- School of Biological Sciences, UM DAE Centre for Excellence in basic Sciences, Mumbai 400098, India
| | - Sirisha L Vavilala
- School of Biological Sciences, UM DAE Centre for Excellence in basic Sciences, Mumbai 400098, India
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Padaga SG, Bhatt H, Ch S, Paul M, Itoo AM, Ghosh B, Roy S, Biswas S. Glycol Chitosan-Poly(lactic acid) Conjugate Nanoparticles Encapsulating Ciprofloxacin: A Mucoadhesive, Antiquorum-Sensing, and Biofilm-Disrupting Treatment Modality for Bacterial Keratitis. ACS APPLIED MATERIALS & INTERFACES 2024; 16:18360-18385. [PMID: 38573741 DOI: 10.1021/acsami.3c18061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Bacterial keratitis (BK) causes visual morbidity/blindness if not treated effectively. Here, ciprofloxacin (CIP)-loaded nanoparticles (NPs) using glycol chitosan (GC) and poly(lactic acid) (PLA) conjugate at three different ratios (CIP@GC(PLA) NPs (1:1,5,15)) were fabricated. CIP@GC(PLA) NPs (1:1) were more effective than other tested ratios, indicating the importance of optimal hydrophobic/hydrophilic balance for corneal penetration and preventing bacterial invasion. The CIP@GC(PLA) (NPs) (1:1) realized the highest association with human corneal epithelial cells, which were nonirritant to the hen's egg-chorioallantoic membrane test (HET-CAM test) and demonstrated significant antibacterial response in the in vitro minimum inhibitory, bactericidal, live-dead cells, zone of inhibition, and biofilm inhibition assays against the keratitis-inducing pathogen Pseudomonas aeruginosa. The antiquorum sensing activity of GC has been explored for the first time. The NPs disrupted the bacterial quorum sensing by inhibiting the production of virulence factors, including acyl homoserine lactones, pyocyanin, and motility, and caused significant downregulation of quorum sensing associated genes. In the in vivo studies, CIP@GC(PLA) NPs (1:1) displayed ocular retention in vivo (∼6 h) and decreased the opacity and the bacterial load effectively. Overall, the CIP@GC(PLA) NP (1:1) is a biofilm-disrupting antiquorum sensing treatment regimen with clinical translation potential in BK.
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Affiliation(s)
- Sri Ganga Padaga
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Himanshu Bhatt
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Sanjay Ch
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Milan Paul
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Asif Mohd Itoo
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Balaram Ghosh
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Sanhita Roy
- Prof. Brien Holden Eye Research Centre, Kallam Anji Reddy Campus, L. V. Prasad Eye Institute, Hyderabad, Telangana 500034, India
| | - Swati Biswas
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
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Hu C, He G, Yang Y, Wang N, Zhang Y, Su Y, Zhao F, Wu J, Wang L, Lin Y, Shao L. Nanomaterials Regulate Bacterial Quorum Sensing: Applications, Mechanisms, and Optimization Strategies. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306070. [PMID: 38350718 PMCID: PMC11022734 DOI: 10.1002/advs.202306070] [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: 08/28/2023] [Revised: 01/19/2024] [Indexed: 02/15/2024]
Abstract
Anti-virulence therapy that interferes with bacterial communication, known as "quorum sensing (QS)", is a promising strategy for circumventing bacterial resistance. Using nanomaterials to regulate bacterial QS in anti-virulence therapy has attracted much attention, which is mainly attributed to unique physicochemical properties and excellent designability of nanomaterials. However, bacterial QS is a dynamic and multistep process, and there are significant differences in the specific regulatory mechanisms and related influencing factors of nanomaterials in different steps of the QS process. An in-depth understanding of the specific regulatory mechanisms and related influencing factors of nanomaterials in each step can significantly optimize QS regulatory activity and enhance the development of novel nanomaterials with better comprehensive performance. Therefore, this review focuses on the mechanisms by which nanomaterials regulate bacterial QS in the signal supply (including signal synthesis, secretion, and accumulation) and signal transduction cascade (including signal perception and response) processes. Moreover, based on the two key influencing factors (i.e., the nanomaterial itself and the environment), optimization strategies to enhance the QS regulatory activity are comprehensively summarized. Collectively, applying nanomaterials to regulate bacterial QS is a promising strategy for anti-virulence therapy. This review provides reference and inspiration for further research on the anti-virulence application of nanomaterials.
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Affiliation(s)
- Chen Hu
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Guixin He
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Yujun Yang
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Ning Wang
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Yanli Zhang
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Yuan Su
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
- Stomatology CenterShunde HospitalSouthern Medical University (The First People's Hospital of Shunde)Foshan528399China
| | - Fujian Zhao
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Junrong Wu
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Linlin Wang
- Hainan General Hospital·Hainan Affiliated Hospital of Hainan medical UniversityHaikou570311China
| | - Yuqing Lin
- Shenzhen Luohu People's HospitalShenzhen518000China
| | - Longquan Shao
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
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Qu Y, Zou Y, Wang G, Zhang Y, Yu Q. Disruption of Communication: Recent Advances in Antibiofilm Materials with Anti-Quorum Sensing Properties. ACS APPLIED MATERIALS & INTERFACES 2024; 16:13353-13383. [PMID: 38462699 DOI: 10.1021/acsami.4c01428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Biofilm contamination presents a significant threat to public health, the food industry, and aquatic/marine-related applications. In recent decades, although various methods have emerged to combat biofilm contamination, the intricate and persistent nature of biofilms makes complete eradication challenging. Therefore, innovative alternative solutions are imperative for addressing biofilm formation. Instead of solely focusing on the eradication of mature biofilms, strategically advantageous measures involve the delay or prevention of biofilm formation on surfaces. Quorum sensing, a communication system enabling bacteria to coordinate their behavior based on population density, plays a pivotal role in biofilm formation for numerous microbial species. Materials possessing antibiofilm properties that target quorum sensing have gained considerable attention for their potential to prevent biofilm formation. This Review consolidates recent research progress on the utilization of materials with antiquorum sensing properties for combating biofilm formation. These materials can be categorized into three distinct types: (i) antibiofilm nanomaterials, (ii) antibiofilm surfaces, and (iii) antibiofilm hydrogels with antiquorum sensing capabilities. Finally, the Review concludes with a brief discussion of current challenges and outlines potential avenues for future research.
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Affiliation(s)
- Yangcui Qu
- College of Medical Engineering & the Key Laboratory for Medical Functional Nanomaterials, Jining Medical University, Jining, 272067, P. R. China
| | - Yi Zou
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Guannan Wang
- School of Pharmacy, Shenyang Medical College, Shenyang, 110034, P. R. China
| | - Yanxia Zhang
- Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Soochow University, Suzhou, 215006, P. R. China
| | - Qian Yu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
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Elfaky MA. Unveiling the hidden language of bacteria: anti-quorum sensing strategies for gram-negative bacteria infection control. Arch Microbiol 2024; 206:124. [PMID: 38409503 DOI: 10.1007/s00203-024-03900-0] [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: 01/03/2024] [Revised: 02/04/2024] [Accepted: 02/16/2024] [Indexed: 02/28/2024]
Abstract
Quorum sensing (QS) is a communication mechanism employed by many bacteria to regulate gene expression in a population density-dependent manner. It plays a crucial role in coordinating various bacterial behaviors, including biofilm formation, virulence factor production, and antibiotic resistance. However, the dysregulation of QS can lead to detrimental effects, making it an attractive target for developing novel therapeutic strategies. Anti-QS approaches aim to interfere with QS signaling pathways, inhibiting the communication between bacteria, and disrupting their coordinated activities. Various strategies have been explored to achieve this goal. Advances in understanding QS mechanisms and the discovery of new targets have paved the way for the development of innovative anti-QS approaches. Combining multiple anti-QS strategies or utilizing them in combination with traditional antibiotics holds great promise for combating bacterial infections and addressing the challenges posed by antibiotic resistance. Anti-QS approaches offer a diverse range of strategies including natural compounds, antibody-mediated quorum quenching (QQ), computer-aided drug design for QQ, repurposing of Drugs approved by FDA as anti-QS agents and modulating quorum-sensing molecules which were discussed in detail in this review. This review, comprehensively and for the first time, sheds light on the significance of diverse anti-QS strategies in solving antimicrobial resistance problem in Gram-negative microbial infection.
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Affiliation(s)
- Mahmoud A Elfaky
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
- Centre for Artificial Intelligence in Precision Medicines, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
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Elkhalifa ME, Ashraf M, Ahmed A, Usman A, Hamdoon AA, Elawad MA, Almalki MG, Mosa OF, Niyazov LN, Ayaz M. Polyphenols and their nanoformulations as potential antibiofilm agents against multidrug-resistant pathogens. Future Microbiol 2024; 19:255-279. [PMID: 38305223 DOI: 10.2217/fmb-2023-0175] [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: 08/09/2023] [Accepted: 10/13/2023] [Indexed: 02/03/2024] Open
Abstract
The emergence of multidrug-resistant (MDR) pathogens is a major problem in the therapeutic management of infectious diseases. Among the bacterial resistance mechanisms is the development of an enveloped protein and polysaccharide-hydrated matrix called a biofilm. Polyphenolics have demonstrated beneficial antibacterial effects. Phenolic compounds mediate their antibiofilm effects via disruption of the bacterial membrane, deprivation of substrate, protein binding, binding to adhesion complex, viral fusion blockage and interactions with eukaryotic DNA. However, these compounds have limitations of chemical instability, low bioavailability, poor water solubility and short half-lives. Nanoformulations offer a promising solution to overcome these challenges by enhancing their antibacterial potential. This review summarizes the antibiofilm role of polyphenolics, their underlying mechanisms and their potential role as resistance-modifying agents.
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Affiliation(s)
- Modawy Em Elkhalifa
- Public Health Department, Health Sciences College at Al-Leith, Umm Al-Qura University, Al leith, KSA
- Faculty of Public and Environmental Health, University of Khartoum, Khartoum, Sudan
| | - Muhammad Ashraf
- Department of Pharmacy, University of Malakand, Chakdara, Dir (L), KP, 18800, Pakistan
| | - Alshebli Ahmed
- Public Health Department, Health Sciences College at Al-Leith, Umm Al-Qura University, Al leith, KSA
- Faculty of Public and Environmental Health, University of Khartoum, Khartoum, Sudan
| | - Assad Usman
- Department of Pharmacy, University of Malakand, Chakdara, Dir (L), KP, 18800, Pakistan
| | - Alashary Ae Hamdoon
- Public Health Department, Health Sciences College at Al-Leith, Umm Al-Qura University, Al leith, KSA
- Faculty of Public and Environmental Health, University of Khartoum, Khartoum, Sudan
| | - Mohammed A Elawad
- Public Health Department, Health Sciences College at Al-Leith, Umm Al-Qura University, Al leith, KSA
- Faculty of Public and Environmental Health, University of Khartoum, Khartoum, Sudan
| | - Meshari G Almalki
- Public Health Department, Health Sciences College at Al-Leith, Umm Al-Qura University, Al leith, KSA
| | - Osama F Mosa
- Public Health Department, Health Sciences College at Al-Leith, Umm Al-Qura University, Al leith, KSA
| | - Laziz N Niyazov
- Medical Chemistry Department, Bukhara State Medical Institute Named After Abu Ali Ibn Sino, Bukhara, Uzbekistan
| | - Muhammad Ayaz
- Department of Pharmacy, University of Malakand, Chakdara, Dir (L), KP, 18800, Pakistan
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Maha Swetha BR, Saravanan M, Piruthivraj P. Emerging trends in the inhibition of bacterial molecular communication: An overview. Microb Pathog 2024; 186:106495. [PMID: 38070626 DOI: 10.1016/j.micpath.2023.106495] [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: 08/04/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 01/02/2024]
Abstract
Quorum sensing (QS) is a molecular cell-cell communication utilized by several bacteria and some fungi. It involves cell density dependent gene expression that includes extra polymeric substance production, sporulation, antibiotic production, motility, competence, symbiosis and conjugation. These expressions were carried out by different signaling molecules like acyl homo-serine lactone (AHL) and auto-inducing peptides (AIPs) which was effluxed by gram negative and gram positive bacteria. Pathogenic bacteria and biofilms often exhibit high resistance to antibiotics, attributed to the presence of antibiotic efflux pumps, reduced membrane permeability, and enzymes that deactivate quorum sensing (QS) inhibitors. To counteract virulence and multi-drug resistance (MDR), novel strategies such as employing quorum sensing (QS) inhibitors and quorum quenchers are employed. It targets signaling molecules with synthesis and prevents the signal from binding to receptors. In this present review, the mechanisms of QS along with inhibitors from different sources are described. These strategies potentially interfere with QS and it can be applied in different fields, mainly in hospitals and marine environments where the pathogenic infections and biofilm formation are highly involved.
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Affiliation(s)
- B R Maha Swetha
- Department of Biotechnoloy, Srimad Andavan Arts and Science College (Autonomous), Tiruchirappalli, Tamil Nadu, India
| | - M Saravanan
- Department of Physics, University College of Engineering, Bharathidasan Institute of Technology Campus, Anna University, Tiruchirapalli, 620 024, Tamil Nadu, India
| | - Prakash Piruthivraj
- Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha Univerisy, Chennai, 600 077, Tamil Nadu, India; Department of Biotechnoloy, Srimad Andavan Arts and Science College (Autonomous), Tiruchirappalli, Tamil Nadu, India.
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Vadakkan K, Ngangbam AK, Sathishkumar K, Rumjit NP, Cheruvathur MK. A review of chemical signaling pathways in the quorum sensing circuit of Pseudomonas aeruginosa. Int J Biol Macromol 2024; 254:127861. [PMID: 37939761 DOI: 10.1016/j.ijbiomac.2023.127861] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/26/2023] [Accepted: 11/01/2023] [Indexed: 11/10/2023]
Abstract
Pseudomonas aeruginosa, an increasingly common competitive and biofilm organism in healthcare infection with sophisticated, interlinked and hierarchic quorum systems (Las, Rhl, PQS, and IQS), creates the greatest threats to the medical industry and has rendered prevailing chemotherapy medications ineffective. The rise of multidrug resistance has evolved into a concerning and potentially fatal occurrence for human life. P. aeruginosa biofilm development is assisted by exopolysaccharides, extracellular DNA, proteins, macromolecules, cellular signaling and interaction. Quorum sensing is a communication process between cells that involves autonomous inducers and regulators. Quorum-induced infectious agent biofilms and the synthesis of virulence factors have increased disease transmission, medication resistance, infection episodes, hospitalizations and mortality. Hence, quorum sensing may be a potential therapeutical target for bacterial illness, and developing quorum inhibitors as an anti-virulent tool could be a promising treatment strategy for existing antibiotics. Quorum quenching is a prevalent technique for treating infections caused by microbes because it diminishes microbial pathogenesis and increases microbe biofilm sensitivity to antibiotics, making it a potential candidate for drug development. This paper examines P. aeruginosa quorum sensing, the hierarchy of quorum sensing mechanism, quorum sensing inhibition and quorum sensing inhibitory agents as a drug development strategy to supplement traditional antibiotic strategies.
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Affiliation(s)
- Kayeen Vadakkan
- Department of Biology, St. Mary's College, Thrissur, Kerala 680020, India; Manipur International University, Imphal, Manipur 795140, India.
| | | | - Kuppusamy Sathishkumar
- Rhizosphere Biology Laboratory, Department of Microbiology, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620024, India; Department of Computational Biology, Institute of Bioinformatics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai 602 105, Tamil Nadu, India
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Khataybeh B, Jaradat Z, Ababneh Q. Anti-bacterial, anti-biofilm and anti-quorum sensing activities of honey: A review. JOURNAL OF ETHNOPHARMACOLOGY 2023; 317:116830. [PMID: 37400003 DOI: 10.1016/j.jep.2023.116830] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/31/2023] [Accepted: 06/20/2023] [Indexed: 07/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Man has used honey to treat diseases since ancient times, perhaps even before the history of medicine itself. Several civilizations have utilized natural honey as a functional and therapeutic food to ward off infections. Recently, researchers worldwide have been focusing on the antibacterial effects of natural honey against antibiotic-resistant bacteria. AIM OF THE STUDY This review aims to summarize research on the use of honey properties and constituents with their anti-bacterial, anti-biofilm, and anti-quorum sensing mechanisms of action. Further, honey's bacterial products, including probiotic organisms and antibacterial agents which are produced to curb the growth of other competitor microorganisms is addressed. MATERIALS AND METHODS In this review, we have provided a comprehensive overview of the antibacterial, anti-biofilm, and anti-quorum sensing activities of honey and their mechanisms of action. Furthermore, the review addressed the effects of antibacterial agents of honey from bacterial origin. Relevant information on the antibacterial activity of honey was obtained from scientific online databases such as Web of Science, Google Scholar, ScienceDirect, and PubMed. RESULTS Honey's antibacterial, anti-biofilm, and anti-quorum sensing activities are mostly attributed to four key components: hydrogen peroxide, methylglyoxal, bee defensin-1, and phenolic compounds. The performance of bacteria can be altered by honey components, which impact their cell cycle and cell morphology. To the best of our knowledge, this is the first review that specifically summarizes every phenolic compound identified in honey along with their potential antibacterial mechanisms of action. Furthermore, certain strains of beneficial lactic acid bacteria such as Bifidobacterium, Fructobacillus, and Lactobacillaceae, as well as Bacillus species can survive and even grow in honey, making it a potential delivery system for these agents. CONCLUSION Honey could be regarded as one of the best complementary and alternative medicines. The data presented in this review will enhance our knowledge of some of honey's therapeutic properties as well as its antibacterial activities.
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Affiliation(s)
- Batool Khataybeh
- Department of Nutrition and Food Technology, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Ziad Jaradat
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan.
| | - Qutaiba Ababneh
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan
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Kalia VC, Patel SKS, Lee JK. Bacterial biofilm inhibitors: An overview. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 264:115389. [PMID: 37634478 DOI: 10.1016/j.ecoenv.2023.115389] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/05/2023] [Accepted: 08/17/2023] [Indexed: 08/29/2023]
Abstract
Bacteria that cause infectious diseases adopt biofilms as one of their most prevalent lifestyles. Biofilms enable bacteria to tolerate environmental stress and evade antibacterial agents. This bacterial defense mechanism has rendered the use of antibiotics ineffective for the treatment of infectious diseases. However, many highly drug-resistant microbes have rapidly emerged owing to such treatments. Different signaling mechanisms regulate bacterial biofilm formation, including cyclic dinucleotide (c-di-GMP), small non-coding RNAs, and quorum sensing (QS). A cell density-dependent phenomenon, QS is associated with c-di-GMP (a global messenger), which regulates gene expression related to adhesion, extracellular matrix production, the transition from the planktonic to biofilm stage, stability, pathogenicity, virulence, and acquisition of nutrients. The article aims to provide information on inhibiting biofilm formation and disintegrating mature/preformed biofilms. This treatment enables antimicrobials to target the free-living/exposed bacterial cells at lower concentrations than those needed to treat bacteria within the biofilm. Therefore, a complementary action of antibiofilm and antimicrobial agents can be a robust strategic approach to dealing with infectious diseases. Taken together, these molecules have broad implications for human health.
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Affiliation(s)
- Vipin Chandra Kalia
- Department of Chemical Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
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Paliya BS, Sharma VK, Tuohy MG, Singh HB, Koffas M, Benhida R, Tiwari BK, Kalaskar DM, Singh BN, Gupta VK. Bacterial glycobiotechnology: A biosynthetic route for the production of biopharmaceutical glycans. Biotechnol Adv 2023; 67:108180. [PMID: 37236328 DOI: 10.1016/j.biotechadv.2023.108180] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/16/2023] [Accepted: 05/21/2023] [Indexed: 05/28/2023]
Abstract
The recent advancement in the human glycome and progress in the development of an inclusive network of glycosylation pathways allow the incorporation of suitable machinery for protein modification in non-natural hosts and explore novel opportunities for constructing next-generation tailored glycans and glycoconjugates. Fortunately, the emerging field of bacterial metabolic engineering has enabled the production of tailored biopolymers by harnessing living microbial factories (prokaryotes) as whole-cell biocatalysts. Microbial catalysts offer sophisticated means to develop a variety of valuable polysaccharides in bulk quantities for practical clinical applications. Glycans production through this technique is highly efficient and cost-effective, as it does not involve expensive initial materials. Metabolic glycoengineering primarily focuses on utilizing small metabolite molecules to alter biosynthetic pathways, optimization of cellular processes for glycan and glycoconjugate production, characteristic to a specific organism to produce interest tailored glycans in microbes, using preferably cheap and simple substrate. However, metabolic engineering faces one of the unique challenges, such as the need for an enzyme to catalyze desired substrate conversion when natural native substrates are already present. So, in metabolic engineering, such challenges are evaluated, and different strategies have been developed to overcome them. The generation of glycans and glycoconjugates via metabolic intermediate pathways can still be supported by glycol modeling achieved through metabolic engineering. It is evident that modern glycans engineering requires adoption of improved strain engineering strategies for creating competent glycoprotein expression platforms in bacterial hosts, in the future. These strategies include logically designing and introducing orthogonal glycosylation pathways, identifying metabolic engineering targets at the genome level, and strategically improving pathway performance (for example, through genetic modification of pathway enzymes). Here, we highlight current strategies, applications, and recent progress in metabolic engineering for producing high-value tailored glycans and their applications in biotherapeutics and diagnostics.
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Affiliation(s)
- Balwant S Paliya
- Herbal Nanobiotechnology Lab, Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow 226001, India
| | - Vivek K Sharma
- Herbal Nanobiotechnology Lab, Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow 226001, India
| | - Maria G Tuohy
- Biochemistry, School of Biological and Chemical Sciences, College of Science & Engineering, University of Galway (Ollscoil na Gaillimhe), University Road, Galway City, Ireland
| | - Harikesh B Singh
- Department of Biotechnology, GLA University, Mathura 281406, Uttar Pradesh, India
| | - Mattheos Koffas
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Rachid Benhida
- Institut de Chimie de Nice, UMR7272, Université Côte d'Azur, Nice, France; Mohamed VI Polytechnic University, Lot 660, Hay Moulay Rachid 43150, Benguerir, Morocco
| | | | - Deepak M Kalaskar
- UCL Division of Surgery and Interventional Science, Royal Free Hospital Campus, University College London, Rowland Hill Street, NW3 2PF, UK
| | - Brahma N Singh
- Herbal Nanobiotechnology Lab, Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow 226001, India.
| | - Vijai K Gupta
- Biorefining and Advanced Materials Research Centre, SRUC, Barony Campus, Parkgate, Dumfries DG1 3NE, United Kingdom.
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12
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Kanak KR, Dass RS, Pan A. Anti-quorum sensing potential of selenium nanoparticles against LasI/R, RhlI/R, and PQS/MvfR in Pseudomonas aeruginosa: a molecular docking approach. Front Mol Biosci 2023; 10:1203672. [PMID: 37635941 PMCID: PMC10449602 DOI: 10.3389/fmolb.2023.1203672] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/25/2023] [Indexed: 08/29/2023] Open
Abstract
Pseudomonas aeruginosa is an infectious pathogen which has the ability to cause primary and secondary contagions in the blood, lungs, and other body parts of immunosuppressed individuals, as well as community-acquired diseases, such as folliculitis, osteomyelitis, pneumonia, and others. This opportunistic bacterium displays drug resistance and regulates its pathogenicity via the quorum sensing (QS) mechanism, which includes the LasI/R, RhlI/R, and PQS/MvfR systems. Targeting the QS systems might be an excellent way to treat P. aeruginosa infections. Although a wide array of antibiotics, namely, newer penicillins, cephalosporins, and combination drugs are being used, the use of selenium nanoparticles (SeNPs) to cure P. aeruginosa infections is extremely rare as their mechanistic interactions are weakly understood, which results in carrying out this study. The present study demonstrates a computational approach of binding the interaction pattern between SeNPs and the QS signaling proteins in P. aeruginosa, utilizing multiple bioinformatics approaches. The computational investigation revealed that SeNPs were acutely 'locked' into the active region of the relevant proteins by the abundant residues in their surroundings. The PatchDock-based molecular docking analysis evidently indicated the strong and significant interaction between SeNPs and the catalytic cleft of LasI synthase (Phe105-Se = 2.7 Å and Thr121-Se = 3.8 Å), RhlI synthase (Leu102-Se = 3.7 Å and Val138-Se = 3.2 Å), transcriptional receptor protein LasR (Lys42-Se = 3.9 Å, Arg122-Se = 3.2 Å, and Glu124-Se = 3.9 Å), RhlR (Tyr43-Se = 2.9 Å, Tyr45-Se = 3.4 Å, and His61-Se = 3.5 Å), and MvfR (Leu208-Se = 3.2 Å and Arg209-Se = 4.0 Å). The production of acyl homoserine lactones (AHLs) was inhibited by the use of SeNPs, thereby preventing QS as well. Obstructing the binding affinity of transcriptional regulatory proteins may cause the suppression of LasR, RhlR, and MvfR systems to become inactive, thereby blocking the activation of QS-regulated virulence factors along with their associated gene expression. Our findings clearly showed that SeNPs have anti-QS properties against the established QS systems of P. aeruginosa, which strongly advocated that SeNPs might be a potent solution to tackle drug resistance and a viable alternative to conventional antibiotics along with being helpful in therapeutic development to cure P. aeruginosa infections.
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Affiliation(s)
- Kanak Raj Kanak
- Fungal Genetics and Mycotoxicology Laboratory, Department of Microbiology, School of Life Sciences, Pondicherry University (A Central University), Pondicherry, India
| | - Regina Sharmila Dass
- Fungal Genetics and Mycotoxicology Laboratory, Department of Microbiology, School of Life Sciences, Pondicherry University (A Central University), Pondicherry, India
| | - Archana Pan
- Department of Bioinformatics, School of Life Sciences, Pondicherry University (A Central University), Pondicherry, India
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Behera SK, Panda AK, Mishra R, Mahanty A, Bisht SS. Structure based virtual screening and molecular dynamics of natural anti-biofilm compounds against SagS response regulator/sensor kinase in Pseudomonas aeruginosa. J Biomol Struct Dyn 2023; 41:6011-6026. [PMID: 35869653 DOI: 10.1080/07391102.2022.2100482] [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: 02/16/2022] [Accepted: 07/06/2022] [Indexed: 10/16/2022]
Abstract
SagS sensor regulator plays a vital role in biofilm development of Pseudomonas aeruginosa which subsequently makes the cells more tolerant to various antimicrobials. The multidrug resistance (MDR) issue has risen substantially in recent years and is considered a global threat. Therefore, alternative compounds should be unearthed immediately to address the issues related to P. aeruginosa drug resistance for which SagS could be a candidate. The present study is an attempt to screen natural anti-biofilm compounds as the potent inhibitors of SagS. Twenty natural anti-biofilm/quorum sensing inhibiting compounds were retrieved from various literatures with significant inhibitory effects against P. aeruginosa biofilm from in-vitro experiments which were screened using various pharmacokinetic parameters. The screened and three standard drugs were docked against SagS-HisKA using AutoDock 4.2 tool, which were further analysed by MD simulations to understand the binding mode of compounds and dynamic behaviour of the complexes. Two potential anti-biofilm natural compounds, pinocembrin with binding affinity (-7.19 kcal/mol), vestitol (-7.18 kcal/mol) and the standard drug ceftazidime (-8.89 kcal/mol) were selected based on filtered parameters and better binding affinity. The trajectory analysis of MD simulations reflected Pinocembrin in stabilizing the system compared to ceftazidime. The existing reports state that the natural products represent promising source of therapy with least or almost nil adverse effect compared to synthetic drugs which is well collated with our in-silico findings. This investigation can save both time and cost required for in-vitro and in-vivo analysis for designing of a novel anti-biofilm agent against P. aeruginosa biofilm-associated infections.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | | | - Rojita Mishra
- Department of Botany, Polasara Science College, Ganjam, India
| | - Arabinda Mahanty
- Crop Protection Division, National Rice Research Institute, Cuttack, India
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Ullah A, Mirani ZA, Binbin S, Wang F, Chan MWH, Aslam S, Yonghong L, Hassan N, Naveed M, Hussain S, Khatoon Z. An Elucidative Study of the Anti-biofilm Effect of Selenium Nanoparticles (SeNPs) on Selected Biofilm Producing Pathogenic Bacteria: A Disintegrating Effect of SeNPs on Bacteria. Process Biochem 2023. [DOI: 10.1016/j.procbio.2022.12.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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15
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Phytochemical analysis and evaluation of antibacterial activity of Moringa oleifera extracts against gram-negative bacteria: an in vitro and molecular docking studies. CURRENT ISSUES IN PHARMACY AND MEDICAL SCIENCES 2022. [DOI: 10.2478/cipms-2022-0035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Abstract
Moringa oleifera seed and leaf are used traditionally for the treatment of various health problems (among others, hypertension, scrapes, skin infection, diabetes, genitourinary illnesses), and to boost the immune system, as well as to act as a contraceptive. In this study, the antibacterial activity of seed and leaf M. oleifera extracts on three-gram negative bacteria was investigated, and phytochemical analysis for the association of antibacterial activity with the active constituents in the plant was determined. Moreover, understanding of the mechanism of action was achieved by applying the Auto Dock Vina technique. The phytochemical screening of M. oleifera seed and leaf extracts exhibited the presence of alkaloids, carbohydrates, cardioactive glycosides, flavonoids, tannins, phenols, steroids and terpenoids. In silico results revealed that compounds (4-O-caffeoyl quinic acid, 4-(α-L-rhamnopyranosyloxyl)-benzylisothiocyanate); (Isoquercitrin, 4-(α-L-rhamnopyranosyloxy) benzyl glucosinolate); and (Astragalin, 4-(α-L-rhamnopyranosyloxy) benzyl glucosinolate) from leaf and seed have the highest binding affinity and very good interactions with Transcriptional Activator Protein (LasR), Klebsiella pneumoniae carbapenemase (KPC), and Malonyl-CoA-acyl carrier protein transacylase (FabD), respectively.
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16
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Capping Agents for Selenium Nanoparticles in Biomedical Applications. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02341-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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17
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Microbe-fabricated nanoparticles as potent biomaterials for efficient food preservation. Int J Food Microbiol 2022; 379:109833. [PMID: 35914405 DOI: 10.1016/j.ijfoodmicro.2022.109833] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/26/2022] [Accepted: 07/05/2022] [Indexed: 11/23/2022]
Abstract
In recent years, cutting-edge nanotechnology research has revolutionized several facets of the food business, including food processing, packaging, transportation, preservation, and functioning. Nanotechnology has beginning to loom large in the food business as the industry's demand for biogenic nanomaterial grows. The intracellular and extracellular synthesis of metal, metal oxide, and other essential NPs has recently been explored in a variety of microorganisms, including bacteria, actinomycetes, fungi, yeasts, microalgae, and viruses. These microbes produce a variety extracellular material, exopolysaccharides, enzymes, and secondary metabolites which play key roles in synthesizing as well as stabilizing the nanoparticle (NPs). Furthermore, genetic engineering techniques can help them to improve their capacity to generate NPs more efficiently. As a result, using microorganisms to manufacture NPs is unique and has a promising future. Microbial-mediated synthesis of NPs has lately been popular as a more environmentally friendly alternative to physical and chemical methods of nanomaterial synthesis, which require higher prices, more energy consumption, and more complex reaction conditions, as well as a potentially dangerous environmental impact. It is critical to consider regulatory measures implemented at all stages of the process, from production through refining, packaging, preservation, and storage, when producing bionanomaterials derived from culturable microbes for efficient food preservation. The current review discusses the synthesis, mechanism of action, and possible food preservation uses of microbial mediated NPs, which can assist to minimize food deterioration from the inside out while also ensuring that food is safe and free of contaminants. Despite the numerous benefits, there are looming debates concerning their usage in food items, particularly regarding its aggregation in human bodies and other risks to the environment. Other applications and impacts of these microbe-fabricated NPs in the context of future food preservation prospects connected with regulatory problems and potential hazards are highlighted.
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18
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Kumar S, Paliya BS, Singh BN. Superior inhibition of virulence and biofilm formation of Pseudomonas aeruginosa PAO1 by phyto-synthesized silver nanoparticles through anti-quorum sensing activity. Microb Pathog 2022; 170:105678. [PMID: 35820580 DOI: 10.1016/j.micpath.2022.105678] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/23/2022] [Accepted: 07/08/2022] [Indexed: 11/18/2022]
Abstract
Quorum sensing (QS)-regulated bacterial biofilm formation is a crucial issue in causing resistance against existing antibiotics. There is a considerable necessity to disrupt the interrelationship between bacterial QS, virulence, and biofilm formation. Disabling QS could be a novel tactic of great clinical importance. Here, we biosynthesized silver nanoparticles (Ka-AgNPs) using the aqueous leaf extract of Koelreuteria paniculata as a reducing and capping agents. The UV-Vis spectroscopy confirmed the synthesis of Ka-AgNPs as a characterization peak observed at 420 nm. TEM image revealed the spherical shape distribution of Ka-AgNPs with average particle size of 30.0 ± 5 nm. The anti-QS activity of Ka-AgNPs was tested against a bio-indicator bacterium Chromobacterium violaceum 12472 and a multi-drug resistant model strain of Pseudomonas aeruginosa (PAO1). The results demonstrated that the Ka-AgNPs superiorly inhibited QS-regulated virulence factors in PAO1 without affecting cell viability compared to chemically synthesized AgNPs (Cs-AgNPs). The Ka-AgNPs effectively suppressed the formation of biofilm of PAO1. RT-PCR results revealed that the Ka-AgNPs inhibited the expression of QS-regulated virulence genes of PAO1. These results suggest that the phyto-synthesized AgNPs could be used as promising anti-infective agents for treating drug-resistant P. aeruginosa.
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Affiliation(s)
- Sanket Kumar
- Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India; Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, 201002, India
| | - Balwant S Paliya
- Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Brahma N Singh
- Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India; Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, 201002, India.
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Dehbanipour R, Ghalavand Z. Anti-virulence therapeutic strategies against bacterial infections: recent advances. Germs 2022; 12:262-275. [PMID: 36504617 PMCID: PMC9719373 DOI: 10.18683/germs.2022.1328] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 01/30/2022] [Accepted: 04/05/2022] [Indexed: 12/15/2022]
Abstract
The emergence and increasing prevalence of multidrug-resistant pathogens has become a major global healthcare problem. According to the World Health Organization if these trends continue, mortality from infection in 2050 will be higher than that from cancer. Microorganisms have various resistance mechanisms against different classes of antibiotics that emphasize the need for discovery of new antimicrobial compounds to treat bacterial infections. An interesting and new strategy for disarming pathogens is antivirulence therapy by blocking bacterial virulence factors or pathogenicity. Therefore, the use of these new pathoblockers could reduce the administration of broad-spectrum antimicrobials and prevalence of resistant strains. This review provides an overview of the antivirulence strategies published studies between years 2017 and 2021. Most antivirulence strategies focused on adhesins, toxins and bacterial communication. Additionally, targeting two-component systems and ncRNA elements were also examined in some studies. These new strategies have the potential to replace traditional antimicrobial agents and can be used to treat infections, especially infections caused by resistant pathogens, by targeting virulence factors.
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Affiliation(s)
- Razieh Dehbanipour
- PhD, Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Koodakyar St, Tabnak Blv., Yaman Av., Chamran Highway, Tehran, Iran
| | - Zohreh Ghalavand
- PhD, Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Koodakyar St, Tabnak Blv., Yaman Av., Chamran Highway, Tehran, Iran,Corresponding author: Zohreh Ghalavand,
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20
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Sharma VK, Sharma M, Usmani Z, Pandey A, Singh BN, Tabatabaei M, Gupta VK. Tailored enzymes as next-generation food-packaging tools. Trends Biotechnol 2022; 40:1004-1017. [PMID: 35144849 DOI: 10.1016/j.tibtech.2022.01.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 12/17/2022]
Abstract
Enzymes have the potential for biotransformation in the food industry. Engineering tools can be used to develop tailored enzymes for food-packaging systems that perform well and retain their activity under adverse conditions. Consequently, novel tailored enzymes have been produced to improve or include new and useful characteristics for intelligent food-packaging systems. This review discusses the protein-engineering tools applied to create new functionality in food-packaging enzymes. The challenges in applications and anticipated directions for future developments are also highlighted. The development and discovery of tailored enzymes for smart food packaging is a promising way to ensure safe and high-quality food products.
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Affiliation(s)
- Vivek K Sharma
- Pharmacology Division, CSIR-National Botanical Research Institute Rana Pratap Marg, PO 436 Lucknow 226001, India
| | - Minaxi Sharma
- Laboratoire de Chimie verte et Produits Biobasés, Haute Ecole Provinciale du Hainaut-Condorcet, Département Agro Bioscience et Chimie, 11, rue de la Sucrerie, 7800 Ath, Belgium; Department of Applied Biology, University of Science and Technology, Meghalaya 793101, India
| | - Zeba Usmani
- Department of Applied Biology, University of Science and Technology, Meghalaya 793101, India
| | - Ashok Pandey
- Centre for Innovation and Translational Research, CSIR-Indian Institute for Toxicology Research, Lucknow-226001, Uttar Pradesh, India; Centre for Energy and Environmental Sustainability, Lucknow-226 029, Uttar Pradesh, India; Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun-248 007, Uttarakhand, India
| | - Brahma N Singh
- Pharmacology Division, CSIR-National Botanical Research Institute Rana Pratap Marg, PO 436 Lucknow 226001, India.
| | - Meisam Tabatabaei
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Henan Province Engineering Research Center for Forest Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK; Center for Safe and Improved Food, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK.
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21
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Sharma VK, Prateeksha, Gupta SC, Singh BN, Rao CV, Barik SK. Cinnamomum verum-derived bioactives-functionalized gold nanoparticles for prevention of obesity through gut microbiota reshaping. Mater Today Bio 2022; 13:100204. [PMID: 35146405 PMCID: PMC8818573 DOI: 10.1016/j.mtbio.2022.100204] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 11/19/2022] Open
Abstract
Existing drugs have limited success in managing obesity in human due to their low efficacy and severe side-effects. Surface-modified gold nanoparticles have now received considerable attention of researchers for efficient biomedical applications owing to their superior uptake by cells, biocompatibility, hydrophilicity and non-immunogenicity. Here we prepared Cinnamomum verum derived bioactives-functionalized gold nanoparticles (Au@P-NPs) and assessed their impact on obesity and related immune-metabolic complications in high-fat diet (HFD)-induced obese mice using metabolic experiments along with 16S RNA gene-based gut microbial profiling and faecal microbiota transplantation (FMT). Au@P-NPs treatment prevented weight gain, decreased fat deposition, reduced metabolic inflammation and endotoxaemia in HFD-fed mice. Au@P-NPs-treated group exhibited better glucose tolerance and insulin sensitivity than HFD-fed control mice, and got completely protected against hepatic steatosis. These impacts were related to increased energy expenditure and enhanced Ucp1 expression in the brown adipose tissues of Au@P-NPs-administered animals, which strongly linked with the mRNA expression of the membrane bile acid receptor TGR5. Treatment of HFD-fed animals with Au@P-NPs altered plasma bile acid profile, and increased Akkermansia muciniphila and decreased Lactobacillus populations in the faeces. Au@P-NPs-treated animals revealed altered plasma bile acid profile, and increased Akkermansia muciniphila and decreased Lactobacillus populations in the faeces. FMT experiments showed lesser weight gain and greater energy expenditure in the mice fed with faecal suspension from Au@P-NPs-treated animals than that from HFD-fed mice. These results clearly establish that gold nanoparticles functionalized with bioactive compounds of C. verum have high potential to be an anti-obesity drug.
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Affiliation(s)
| | | | - Sateesh C. Gupta
- Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Brahma N. Singh
- Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Chandana V. Rao
- Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Saroj K. Barik
- Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
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22
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Elshaer SL, Shaaban MI. Inhibition of Quorum Sensing and Virulence Factors of Pseudomonas aeruginosa by Biologically Synthesized Gold and Selenium Nanoparticles. Antibiotics (Basel) 2021; 10:1461. [PMID: 34943673 PMCID: PMC8698379 DOI: 10.3390/antibiotics10121461] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/21/2021] [Accepted: 11/24/2021] [Indexed: 12/05/2022] Open
Abstract
The development of microbial resistance requires a novel approach to control microbial infection. This study implies the microbial synthesis of nanometals and assessment of their antivirulent activity against Pseudomonas aeruginosa. Streptomyces isolate S91 was isolated from soil with substantial ability for growth at high salts concentrations. The cell-free supernatant of S91was utilized for the synthesis of Au-NPs and Se-NPs. The 16S rRNA sequence analysis of Streptomyces S91 revealed that S91 had a high similarity (98.82%) to Streptomyces olivaceous. The biosynthesized Au-NPs and Se-NPs were characterized using a UV-Vis spectrophotometer, dynamic light scattering, transmission electron microscopy, energy dispersive X-ray diffraction and Fourier-transform infrared spectroscopy. The quorum sensing inhibitory (QSI) potential of Au-NPs and Se-NPs and the antivirulence activity was examined against P. aeruginosa. The QSI potential was confirmed using RT-PCR. The synthesized Au-NPs and Se-NPs were monodispersed spherical shapes with particle size of 12.2 and 67.98 nm, respectively. Au-NPs and Se-NPs eliminated QS in P. aeruginosa at a concentration range of 2.3-18.5 µg/mL for Au-NPs and 2.3-592 µg/mL for Se-NPs. In addition, Au-NPs and Se-NPs significantly inhibited QS-related virulence factors, such as pyocyanin, protease and, elastase in P. aeruginosa. At the molecular level, Au-NPs and Se-NPs significantly suppressed the relative expression of QS genes and toxins. Hence, the biosynthesized Au-NPS and Se-NPS could be substantial inhibitors of QS and virulence traits of P. aeruginosa.
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Affiliation(s)
| | - Mona I. Shaaban
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;
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Antibacterial Activity of Biosynthesized Selenium Nanoparticles Using Extracts of Calendula officinalis against Potentially Clinical Bacterial Strains. Molecules 2021; 26:molecules26195929. [PMID: 34641478 PMCID: PMC8513099 DOI: 10.3390/molecules26195929] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 09/25/2021] [Accepted: 09/27/2021] [Indexed: 12/26/2022] Open
Abstract
The use of selenium nanoparticles (SeNPs) in the biomedical area has been increasing as an alternative to the growing bacterial resistance to antibiotics. In this research, SeNPs were synthesized by green synthesis using ascorbic acid (AsAc) as a reducing agent and methanolic extract of Calendula officinalis L. flowers as a stabilizer. Characterization of SeNPs was performed by UV-vis spectrophotometry, infrared spectrophotometry (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and transmission electron microscopy (TEM) techniques. SeNPs of 40–60 nm and spherical morphologies were obtained. The antibacterial activity of marigold extracts and fractions was evaluated by disk diffusion methodology. The evaluation of SeNPs at different incubation times was performed through the colony-forming unit (CFU) count, in both cases against Serratia marcescens, Enterobacter cloacae, and Alcaligenes faecalis bacteria. Partial antibacterial activity was observed with methanolic extracts of marigold leaves and flowers and total inhibition with SeNPs from 2 h for S. marcescens, 1 h for E. cloacae, and 30 min for A. faecalis. In addition, SeNPs were found to exhibit antioxidant activity. The results indicate that SeNPs present a potentiated effect of both antimicrobial and antioxidant activity compared to the individual use of marigold extracts or sodium selenite (Na2SeO3). Their application emerges as an alternative for the control of clinical pathogens.
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Zhu M, Gao Z, Fu Y, Qiu Y, Huang K, Zhu C, Wu Y, Zhu T, Wang Q, Yang L, Yin Y, Li P. Amorphous Selenium Nanoparticles Improve Vascular Function in Rats With Chronic Isocarbophos Poisoning via Inhibiting the Apoptosis of Vascular Endothelial Cells. Front Bioeng Biotechnol 2021; 9:673327. [PMID: 34249881 PMCID: PMC8266299 DOI: 10.3389/fbioe.2021.673327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 05/27/2021] [Indexed: 11/13/2022] Open
Abstract
AIM This study aimed to investigate the preventive effect and possible mechanism of amorphous selenium nanoparticles (A-SeQDs) on isocarbophos induced vascular dysfunction. METHODS A-SeQDs was made by auto redox decomposition of selenosulfate precursor. Male rats were given isocarbophos (0.5 mg/kg/2 days) by intragastric administration for 16 weeks to induce vascular dysfunction. During the course, A-SeQDs (50 mg/kg/day) was added to the water from week 5. Then, the rats were killed to observe and test the influence of A-SeQDs on the vascular dysfunction induced by isocarbophos. Finally, human umbilical vein endothelial cells (HUVECs) were treated with 10% DMEM of isocarbophos (100 μM) for 5 days to detect the related indexes. Before the use of isocarbophos treatment, different drugs were given. RESULTS A-SeQDs could reduce total carbon dioxide, MDA, VCAM-1, ICAM-1, IL-1, and IL-6 while increasing oxygen saturation, NO content, and SOD activity in rats. A-SeQDs also resulted in relatively normal vascular morphology, and the expression of sodium hydrogen exchanger 1 (NHE1) and caspase-3 decreased in rats. Furthermore, in HUVECs treated with isocarbophos, A-SeQDs maintained mitochondrial membrane potential, inhibited the cleaved caspase-3 expression, and released cytochrome c from mitochondria to cytosol. CONCLUSION A-SeQDs can inhibit the apoptosis of HUVECs through the mitochondrial pathway, and effectively treat the impairment of vascular endothelial function caused by isocarbophos, which is NHE1-dependent.
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Affiliation(s)
- Moli Zhu
- School of Pharmacy, Xinxiang Medical University, Xinxiang, China
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, China
- Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, China
| | - Zhitao Gao
- School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China
| | - Yutian Fu
- School of Pharmacy, Xinxiang Medical University, Xinxiang, China
| | - Yue Qiu
- School of Pharmacy, Xinxiang Medical University, Xinxiang, China
| | - Keke Huang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, China
| | - Chaonan Zhu
- Department of Pharmacy, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Yinan Wu
- Sanquan Medical College, Xinxiang Medical University, Xinxiang, China
| | - Tiantian Zhu
- School of Pharmacy, Xinxiang Medical University, Xinxiang, China
| | - Qianqian Wang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, China
| | - Lin Yang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, China
- Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, China
| | - Yaling Yin
- Basic Medical College, Xinxiang Medical University, Xinxiang, China
| | - Peng Li
- School of Pharmacy, Xinxiang Medical University, Xinxiang, China
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Perfileva AI, Nozhkina OA, Ganenko TV, Graskova IA, Sukhov BG, Artem’ev AV, Trofimov BA, Krutovsky KV. Selenium Nanocomposites in Natural Matrices as Potato Recovery Agent. Int J Mol Sci 2021; 22:4576. [PMID: 33925499 PMCID: PMC8123876 DOI: 10.3390/ijms22094576] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/21/2021] [Accepted: 04/24/2021] [Indexed: 12/11/2022] Open
Abstract
The paper presents a study of the effect of chemically synthesized selenium nanocomposites (Se NCs) in natural polymer matrices arabinogalactan (AG) and starch (ST) on the viability of the potato ring rot pathogen Clavibacter sepedonicus (Cms), potato plants in vitro, and the soil bacterium Rhodococcus erythropolis. It was found that the studied Se NCs have an antibacterial effect against the phytopathogenic Cms, reducing its growth rate and ability to form biofilms. It was revealed that Se NC based on AG (Se/AG NC) stimulated the growth and development of potato plants in vitro as well as their root formation. At the same time, Se did not accumulate in potato tissues after the treatment of plants with Se NCs. The safety of the Se NCs was also confirmed by the absence of a negative effect on the growth and biofilm formation of the soil bacterium R. erythropolis. The obtained results indicate that Se NCs are promising environmentally safe agents for the protection and recovery of cultivated plants from phytopathogenic bacteria.
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Affiliation(s)
- Alla I. Perfileva
- Laboratory of Plant-Microbe Interactions, Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch of the Russian Academy of Sciences, 664033 Irkutsk, Russia; (A.I.P.); (O.A.N.); (I.A.G.)
| | - Olga A. Nozhkina
- Laboratory of Plant-Microbe Interactions, Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch of the Russian Academy of Sciences, 664033 Irkutsk, Russia; (A.I.P.); (O.A.N.); (I.A.G.)
| | - Tatjana V. Ganenko
- Laboratory of Functional Nanomaterials, A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 664033 Irkutsk, Russia;
| | - Irina A. Graskova
- Laboratory of Plant-Microbe Interactions, Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch of the Russian Academy of Sciences, 664033 Irkutsk, Russia; (A.I.P.); (O.A.N.); (I.A.G.)
| | - Boris G. Sukhov
- Laboratory of Nanoparticles, V. V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Alexander V. Artem’ev
- A. V. Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Boris A. Trofimov
- Laboratory of Unsaturated Heteroatomic Compounds, A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 664033 Irkutsk, Russia;
| | - Konstantin V. Krutovsky
- Department of Forest Genetics and Forest Tree Breeding, Faculty of Forest Sciences and Forest Ecology, Georg-August University of Göttingen, Büsgenweg 2, D-37077 Göttingen, Germany
- Center for Integrated Breeding Research (CiBreed), Georg-August University of Göttingen, Albrecht-Thaer-Weg 3, D-37075 Göttingen, Germany
- Laboratory of Population Genetics, N. I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Gubkin Str. 3, 119333 Moscow, Russia
- Laboratory of Forest Genomics, Genome Research and Education Center, Siberian Federal University, 660036 Krasnoyarsk, Russia
- Department of Ecosystem Science and Management, Texas A&M University, 2138 TAMU, College Station, TX 77843-2138, USA
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26
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Patel B, Mishra S, Priyadarsini IK, Vavilala SL. Elucidating the anti-biofilm and anti-quorum sensing potential of selenocystine against respiratory tract infections causing bacteria: in vitro and in silico studies. Biol Chem 2021; 402:769-783. [PMID: 33735944 DOI: 10.1515/hsz-2020-0375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/10/2021] [Indexed: 11/15/2022]
Abstract
Bacteria are increasingly relying on biofilms to develop resistance to antibiotics thereby resulting in their failure in treating many infections. In spite of continuous research on many synthetic and natural compounds, ideal anti-biofilm molecule is still not found thereby warranting search for new class of molecules. The current study focuses on exploring anti-biofilm potential of selenocystine against respiratory tract infection (RTI)-causing bacteria. Anti-bacterial and anti-biofilm assays demonstrated that selenocystine inhibits the growth of bacteria in their planktonic state, and formation of biofilms while eradicating preformed-biofilm effectively. Selenocystine at a MIC50 as low as 42 and 28 μg/mL effectively inhibited the growth of Klebsiella pneumonia and Pseudomonas aeruginosa. The antibacterial effect is further reconfirmed by agar cup diffusion assay and growth-kill assay. Selenocystine showed 30-60% inhibition of biofilm formation in K. pneumonia, and 44-70% in P. aeruginosa respectively. It also distorted the preformed-biofilms by degrading the eDNA component of the Extracellular Polymeric Substance matrix. Molecular docking studies of selenocystine with quorum sensing specific proteins clearly showed that through the carboxylic acid moiety it interacts and inhibits the protein function, thereby confirming its anti-biofilm potential. With further validation selenocystine can be explored as a potential candidate for the treatment of RTIs.
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Affiliation(s)
- Bharti Patel
- School of Biological and Chemical Sciences, UM DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Santacruz East, Mumbai400098, India
| | - Subrata Mishra
- School of Biological and Chemical Sciences, UM DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Santacruz East, Mumbai400098, India
| | - Indira K Priyadarsini
- School of Biological and Chemical Sciences, UM DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Santacruz East, Mumbai400098, India
| | - Sirisha L Vavilala
- School of Biological and Chemical Sciences, UM DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Santacruz East, Mumbai400098, India
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27
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Filipović N, Ušjak D, Milenković MT, Zheng K, Liverani L, Boccaccini AR, Stevanović MM. Comparative Study of the Antimicrobial Activity of Selenium Nanoparticles With Different Surface Chemistry and Structure. Front Bioeng Biotechnol 2021; 8:624621. [PMID: 33569376 PMCID: PMC7869925 DOI: 10.3389/fbioe.2020.624621] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 12/30/2020] [Indexed: 01/02/2023] Open
Abstract
Although selenium nanoparticles (SeNPs) have gained attention in the scientific community mostly through investigation of their anticancer activity, a great potential of this nanomaterial was recognized recently regarding its antimicrobial activity. The particle form, size, and surface chemistry have been recognized as crucial parameters determining the interaction of nanomaterials with biological entities. Furthermore, considering a narrow boundary between beneficial and toxic effects for selenium per se, it is clear that investigations of biomedical applications of SeNPs are very demanding and must be done with great precautions. The goal of this work is to evaluate the effects of SeNPs surface chemistry and structure on antimicrobial activity against several common bacterial strains, including Staphylococcus aureus (ATCC 6538), Enterococcus faecalis (ATCC 29212), Bacillus subtilis (ATCC 6633), and Kocuria rhizophila (ATCC 9341), as well as Escherichia coli (ATCC 8739), Salmonella Abony (NCTC 6017), Klebsiella pneumoniae (NCIMB 9111) and Pseudomonas aeruginosa (ATCC 9027), and the standard yeast strain Candida albicans (ATCC 10231). Three types of SeNPs were synthesized by chemical reduction approach using different stabilizers and reducing agents: (i) bovine serum albumin (BSA) + ascorbic acid, (ii) chitosan + ascorbic acid, and (iii) with glucose. A thorough physicochemical characterization of the obtained SeNPs was performed to determine the effects of varying synthesis parameters on their morphology, size, structure, and surface chemistry. All SeNPs were amorphous, with spherical morphology and size in the range 70–300 nm. However, the SeNPs obtained under different synthesis conditions, i.e. by using different stabilizers as well as reducing agents, exhibited different antimicrobial activity as well as cytotoxicity which are crucial for their applications. In this paper, the antimicrobial screening of the selected systems is presented, which was determined by the broth microdilution method, and inhibitory influence on the production of monomicrobial and dual-species biofilm was evaluated. The potential mechanism of action of different systems is proposed. Additionally, the cytotoxicity of SeNPs was examined on the MRC-5 cell line, in the same concentration interval as for antimicrobial testing. It was shown that formulation SeNPs-BSA expressed a significantly lower cytotoxic effect than the other two formulations.
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Affiliation(s)
- Nenad Filipović
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, Serbia
| | - Dušan Ušjak
- Department of Microbiology and Immunology, University of Belgrade-Faculty of Pharmacy, Belgrade, Serbia
| | - Marina T Milenković
- Department of Microbiology and Immunology, University of Belgrade-Faculty of Pharmacy, Belgrade, Serbia
| | - Kai Zheng
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Liliana Liverani
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Aldo R Boccaccini
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Magdalena M Stevanović
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, Serbia
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28
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Bulgarini A, Lampis S, Turner RJ, Vallini G. Biomolecular composition of capping layer and stability of biogenic selenium nanoparticles synthesized by five bacterial species. Microb Biotechnol 2021; 14:198-212. [PMID: 33068075 PMCID: PMC7888468 DOI: 10.1111/1751-7915.13666] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 08/12/2020] [Accepted: 08/25/2020] [Indexed: 01/04/2023] Open
Abstract
Biogenic metal/metalloid nanoparticles of microbial origin retain a functional biomolecular capping layer that confers structural stability. Little is known about the composition of such capping material. In this study, selenium nanoparticles (SeNPs) synthesized by five different bacterial strains underwent comparative analysis with newly proposed protocols for quantifying the concentration of carbohydrates, proteins and lipids present in capping layers. SeNPs were therefore treated with two different detergents to remove portions of the surrounding caps in order to assess the resulting effects. Capping material quantification was carried out along with the measure of parameters such as hydrodynamic diameter, polydispersity and surface charge. SeNPs from the five strains showed differences in their distinct biomolecule ratios. On the other hand, structural changes in the nanoparticles induced by detergents did not correlate with the amounts of capping matrix removed. Thus, the present investigation suggests a hypothesis to describe capping layer composition of the bacterial SeNPs: some biomolecules are bound more strongly than others to the core metalloid matrix, so that the diverse capping layer components differentially contribute to the overall structural characteristics of the nanoparticles. Furthermore, the application of the approach here in combining quantification of cap-associated biomolecules with the measurement of structural integrity-related parameters can give the biogenic nanomaterial field useful information to construct a data bank on biogenically synthesized nanostructures.
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Affiliation(s)
- Alessandra Bulgarini
- Department of BiotechnologyUniversity of VeronaStrada Le Grazie 15Verona37134Italy
- Microbial Biochemistry LaboratoryDepartment of Biological SciencesUniversity of Calgary2500 University Dr. NWCalgaryABT2N 1N4Canada
| | - Silvia Lampis
- Department of BiotechnologyUniversity of VeronaStrada Le Grazie 15Verona37134Italy
| | - Raymond J. Turner
- Microbial Biochemistry LaboratoryDepartment of Biological SciencesUniversity of Calgary2500 University Dr. NWCalgaryABT2N 1N4Canada
| | - Giovanni Vallini
- Department of BiotechnologyUniversity of VeronaStrada Le Grazie 15Verona37134Italy
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29
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Khan M, Husain FM, Zia Q, Ahmad E, Jamal A, Alaidarous M, Banawas S, Alam MM, Alshehri BA, Jameel M, Alam P, Ahamed MI, Ansari AH, Ahmad I. Anti-quorum Sensing and Anti-biofilm Activity of Zinc Oxide Nanospikes. ACS OMEGA 2020; 5:32203-32215. [PMID: 33376858 PMCID: PMC7758897 DOI: 10.1021/acsomega.0c03634] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/04/2020] [Indexed: 05/25/2023]
Abstract
This study evaluates the impact of two separate incubation periods (4 and 6 weeks) on the morphology of sol-gel-fabricated ZnO nanospikes (ZNs), that is, ZN1 and ZN2, respectively. We further analyzed the inhibitory effects of ZN1 and ZN2 on quorum sensing (QS) and biofilm formation in Pseudomonas aeruginosa (PAO1) and Chromobacterium violaceum (strains 12472 and CVO26). The size of the synthesized ZNs was in the range of 40-130 nm, and finer nanoparticles were synthesized after an incubation period of 6 weeks. Treatment with ZNs decreased the production of violacein in the pathogen without affecting the bacterial growth, which indicated that ZNs inhibited the QS signaling regulated by N-acyl homoserine lactone. ZN2 had a higher inhibitory action on the virulence factor productivity than ZN1. Furthermore, ZN2-treated cells displayed a substantial decrease in azocasein-degrading protease activity (80%), elastase activity (83%), and pyocyanin production (85%) relative to untreated P. aeruginosa PAO1 cells. Treatment with ZN2 decreased swarming motility and exopolysaccharide production by 89 and 85%, respectively. ZN2 was effective against both the las & pqs systems of P. aeruginosa and exhibited broad-spectrum activity. Additionally, ZN2 was more efficient in inhibiting the biofilm formation at the attachment stage than ZN1. These findings revealed that in P. aeruginosa, ZN2 demonstrated inhibitory effects on QS as well as on the development of biofilms. Thus, ZN2 can be potentially used to treat drug-resistant P. aeruginosa infections.
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Affiliation(s)
- Mohd.
Farhan Khan
- Nano
Solver Lab, Department of Mechanical Engineering, Z. H. College of
Engineering & Technology, Aligarh Muslim
University, Aligarh 202002, India
- Department
of Science, Gagan College of Management
and Technology, Aligarh 202002, India
| | - Fohad Mabood Husain
- Department
of Food Science and Nutrition, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Qamar Zia
- Health
and Basic Science Research Centre, Majmaah
University, Majmaah 11952, Saudi Arabia
- Department
of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah 11952, Saudi Arabia
| | - Ejaz Ahmad
- Interdisciplinary
Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Azfar Jamal
- Health
and Basic Science Research Centre, Majmaah
University, Majmaah 11952, Saudi Arabia
- Department
of Biology, College of Science, Majmaah
University, Majmaah 11952, Saudi Arabia
| | - Mohammed Alaidarous
- Health
and Basic Science Research Centre, Majmaah
University, Majmaah 11952, Saudi Arabia
- Department
of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah 11952, Saudi Arabia
| | - Saeed Banawas
- Health
and Basic Science Research Centre, Majmaah
University, Majmaah 11952, Saudi Arabia
- Department
of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah 11952, Saudi Arabia
- Department
of Biomedical Sciences, Oregon State University, Corvallis, Oregon 97331, United States
| | - Md. Manzar Alam
- Regional
Research Institute of Unani Medicine (Under CCRUM, Ministry of AYUSH), Patna 800008, India
| | - Bader A. Alshehri
- Health
and Basic Science Research Centre, Majmaah
University, Majmaah 11952, Saudi Arabia
| | - Mohd. Jameel
- Department
of Zoology, Faculty of Life Sciences, Aligarh
Muslim University, Aligarh 202002, India
| | - Pravej Alam
- Department of Biology, Prince Sattam bin
Abdulaziz Univrsity, Alkharj 11942, Kingdom of Saudi Arabia
| | - Mohd Imran Ahamed
- Department of Chemistry, Aligarh
Muslim
University, Aligarh 202002, India
| | - Akhter H. Ansari
- Nano
Solver Lab, Department of Mechanical Engineering, Z. H. College of
Engineering & Technology, Aligarh Muslim
University, Aligarh 202002, India
| | - Iqbal Ahmad
- Department of
Agricultural Microbiology, Faculty of Agricultural
Sciences, Aligarh Muslim University, Aligarh 202002, India
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30
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Ramón-Sierra JM, Villanueva MA, Rodríguez-Mendiola M, Reséndez-Pérez D, Ortiz-Vázquez E, Arias-Castro C. Characterization of a non-glycosylated fraction from honey proteins of Melipona beecheii with antimicrobial activity against Escherichia coli O157:H7. J Appl Microbiol 2020; 130:1913-1924. [PMID: 33151599 DOI: 10.1111/jam.14921] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 10/28/2020] [Accepted: 11/02/2020] [Indexed: 01/27/2023]
Abstract
AIMS To analyse the non-glycosylated protein fraction from Melipona beecheii honey for antimicrobial activity against Escherichia coli O157:H7. METHODS AND RESULTS The proteins from M. beecheii honey were separated according to their degree of glycosylation using Concanavalin A-affinity chromatography. The total protein extract and its fractions were analysed by 1D and 2D electrophoresis. We also determined the antimicrobial and antihaemolytic activities of the total protein extract and the non-glycosylated fraction. Furthermore, we evaluated the effect of this non-glycosylated fraction for the expression of the Stx1, Stx2, EAE and HlyA pathogen genes. Melipona beecheii honey contained at least 24 proteins with molecular weights ranging between 7·6 and 95 kDa and isoelectric points between 3 and 10, three proteins from the 24 are non-glycosylated. The non-glycosylated fraction had an MIC90 of 1·128 µg ml-1 , and this fraction inhibited the haemolytic activity of the pathogen, as well as reduced the expression of Stx1, Stx2 and HlyA. The MbF1-2 protein from the non-glycosylated fraction was sequenced and identified as a homologue of the royal jelly-like protein of Melipona quadrifasciata. CONCLUSIONS The non-glycosylated protein fraction from M. beecheii honey greatly contributes to antibacterial activity and it is composed of at least three proteins, of which MbF1-2 provided over 50% of the antimicrobial activity. SIGNIFICANCE AND IMPACT OF THE STUDY The study showed significant antimicrobial activity from several proteins present in the honey of M. beecheii. Interestingly, the non-glycosylated protein fraction demonstrated antihaemolytic activity and adversely affected the expression of virulence genes in Escherichia coli O157:H7; these proteins have the potential to be used in developing therapeutic agents against this bacterium.
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Affiliation(s)
- J M Ramón-Sierra
- Tecnológico Nacional de México/ITTlajomulco, Tlajomulco de Zúñiga Jalisco, México.,Tecnológico Nacional de México/ITMérida, Yucatán, México
| | - M A Villanueva
- Instituto de Ciencias del Mar y Limnología, Unidad Académica de Sistemas Arrecifales, Universidad Nacional Autónoma de México, Puerto Morelos, Mexico
| | - M Rodríguez-Mendiola
- Tecnológico Nacional de México/ITTlajomulco, Tlajomulco de Zúñiga Jalisco, México
| | - D Reséndez-Pérez
- Departamento de Biología Celular y Genética Facultad de Ciencias Biológicas, Unidad de Biología del Desarrollo del Laboratorio Inmunología y Virología, San Nicolás de los Garza, México
| | | | - C Arias-Castro
- Tecnológico Nacional de México/ITTlajomulco, Tlajomulco de Zúñiga Jalisco, México
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31
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Combarros-Fuertes P, Fresno JM, Estevinho MM, Sousa-Pimenta M, Tornadijo ME, Estevinho LM. Honey: Another Alternative in the Fight against Antibiotic-Resistant Bacteria? Antibiotics (Basel) 2020; 9:antibiotics9110774. [PMID: 33158063 PMCID: PMC7694208 DOI: 10.3390/antibiotics9110774] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 02/06/2023] Open
Abstract
Antibacterial resistance has become a challenging situation worldwide. The increasing emergence of multidrug-resistant pathogens stresses the need for developing alternative or complementary antimicrobial strategies, which has led the scientific community to study substances, formulas or active ingredients used before the antibiotic era. Honey has been traditionally used not only as a food, but also with therapeutic purposes, especially for the topical treatment of chronic-infected wounds. The intrinsic characteristics and the complex composition of honey, in which different substances with antimicrobial properties are included, make it an antimicrobial agent with multiple and different target sites in the fight against bacteria. This, together with the difficulty to develop honey-resistance, indicates that it could become an effective alternative in the treatment of antibiotic-resistant bacteria, against which honey has already shown to be effective. Despite all of these assets, honey possesses some limitations, and has to fulfill a number of requirements in order to be used for medical purposes.
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Affiliation(s)
- Patricia Combarros-Fuertes
- Department of Food Hygiene and Technology, Faculty of Veterinary Science, University of León, Campus de Vegazana, 24071 León, Spain; (P.C.-F.); (J.M.F.); (M.E.T.)
| | - José M. Fresno
- Department of Food Hygiene and Technology, Faculty of Veterinary Science, University of León, Campus de Vegazana, 24071 León, Spain; (P.C.-F.); (J.M.F.); (M.E.T.)
| | - Maria Manuela Estevinho
- Department of Biomedicine, Unit of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal;
| | - Mário Sousa-Pimenta
- Department of Onco-Hematology, Portuguese Institute of Oncology of Porto (IPO-Porto), 4200-072 Porto, Portugal;
| | - M. Eugenia Tornadijo
- Department of Food Hygiene and Technology, Faculty of Veterinary Science, University of León, Campus de Vegazana, 24071 León, Spain; (P.C.-F.); (J.M.F.); (M.E.T.)
| | - Leticia M. Estevinho
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, 5300-252 Bragança, Portugal
- Correspondence: ; Tel.: +351-273303342
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32
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Subhaswaraj P, Syed A, Siddhardha B. Novel Nanotherapeutics as Next-generation Anti-infective Agents: Current Trends and Future Prospectives. Curr Drug Discov Technol 2020; 17:457-468. [PMID: 31309893 DOI: 10.2174/1570163816666190715120708] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 04/08/2019] [Accepted: 04/30/2019] [Indexed: 12/16/2022]
Abstract
With the ever-increasing population and improvement in the healthcare system in the 21st century, the incidence of chronic microbial infections and associated health disorders has also increased at a striking pace. The ability of pathogenic microorganisms to form biofilm matrix aggravates the situation due to antibiotic resistance phenomenon resulting in resistance against conventional antibiotic therapy which has become a public health concern. The canonical Quorum Sensing (QS) signaling system hierarchically regulates the expression of an array of virulence phenotypes and controls the development of biofilm dynamics. It is imperative to develop an alternative, yet effective and non-conventional therapeutic approach, popularly known as "anti-infective therapy" which seems to be interesting. In this regard, targeting microbial QS associated virulence and biofilm development proves to be a quite astonishing approach in counteracting the paucity of traditional antibiotics. A number of synthetic and natural compounds are exploited for their efficacy in combating QS associated microbial infections but the bioavailability and biocompatibility limit their widespread applications. In this context, the nanotechnological intervention offers a new paradigm for widespread biomedical applications starting from targeted drug delivery to diagnostics for the diagnosis and treatment of infectious diseases, particularly to fight against microbial infections and antibiotics resistance in biofilms. A wide range of nanomaterials ranging from metallic nanoparticles to polymeric nanoparticles and recent advances in the development of carbon-based nanomaterials such as Carbon Nanotubes (CNTs), Graphene Oxide (GO) also immensely exhibited intrinsic antiinfective properties when targeted towards microbial infections and associated MDR phenomenon. In addition, the use of nano-based platforms as carriers emphatically increases the efficacy of targeted and sitespecific delivery of potential drug candidates for preventing microbial infections.
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Affiliation(s)
- Pattnaik Subhaswaraj
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry-605 014, India
| | - Asad Syed
- Botany and Microbiology Department, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Busi Siddhardha
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry-605 014, India
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33
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Hemmati F, Salehi R, Ghotaslou R, Samadi Kafil H, Hasani A, Gholizadeh P, Nouri R, Ahangarzadeh Rezaee M. Quorum Quenching: A Potential Target for Antipseudomonal Therapy. Infect Drug Resist 2020; 13:2989-3005. [PMID: 32922047 PMCID: PMC7457774 DOI: 10.2147/idr.s263196] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/07/2020] [Indexed: 12/15/2022] Open
Abstract
There has been excessive rate of use of antibiotics to fight Pseudomonas aeruginosa (P. aeruginosa) infections worldwide, which has consequently caused the increased resistance to multiple antibiotics in this pathogen. Due to the widespread resistance and the current poor effect of antibiotics consumed to treat P. aeruginosa infections, finding some novel alternative therapeutic methods are necessary for the treatment of infections. The P. aeruginosa biofilms can cause severe infections leading to the increased antibiotic resistance and mortality rate among the patients. In this regard, there are no approaches that can efficiently manage these infections; therefore, novel and effective antimicrobial and antibiofilm agents are needed to control and treat these bacterial infections. Quorum sensing inhibitors (QSIs) or quorum quenchings (QQs) are now considered as potential therapeutic alternatives and/or adjuvants to the current failing antibiotics, which can control the virulence traits of the pathogens, so as a result, the host immune system can quickly eliminate bacteria. Thus, the aims of this review article were presenting a brief explanation of the research reports on the natural and synthetic QSIs of P. aeruginosa, and the assessment of the current understanding on the QS mechanisms and various QQ strategies in P. aeruginosa.
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Affiliation(s)
- Fatemeh Hemmati
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Roya Salehi
- Drug Applied Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Reza Ghotaslou
- Department of Medical Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Samadi Kafil
- Drug Applied Research Center, Tabriz University of Medical Science, Tabriz, Iran.,Department of Medical Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alka Hasani
- Department of Medical Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Pourya Gholizadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Roghayeh Nouri
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Ahangarzadeh Rezaee
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Medical Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Nagar N, Aswathanarayan JB, Vittal RR. Anti-quorum sensing and biofilm inhibitory activity of Apium graveolens L. oleoresin. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2020; 57:2414-2422. [PMID: 32549591 PMCID: PMC7271345 DOI: 10.1007/s13197-020-04275-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 12/20/2019] [Accepted: 01/22/2020] [Indexed: 06/11/2023]
Abstract
Apium graveolens L. (Apiaceae) is a dietary herb used as a spice, condiment and medicine. A. graveolens (Celery) has been studied for its antimicrobial property and for its application as flavours in food industry. The present study investigated the Apium graveolens oleoresin as an anti-quorum sensing and antibiofilm agent. The quorum sensing and biofilm inhibition study was carried out using biosensor strains Chromobacterium violaceum CV12472 and Pseudomonas aeruginosa PAO1. The MIC of celery oleoresin against C. violaceum CV12472 and P. aeruginosa PAO1 was 10 and 25% v/v, respectively. Inhibition of violacein and biofilm formation was tested at concentrations of oleoresins ranging from 1.56 and 50% v/v. The oleoresins showed a concentration dependent QS inhibitory activity and at sub-MIC of 6.25 and 12.5% v/v, the oleoresins significantly inhibited violacein production and biofilm formation (p < 0.05). Similarly, the celery oleoresin had significant QS modulatory effect on swimming, swarming and twitching motility in P. aeruginosa PAO1 at 12.5% v/v (p < 0.05). The major phytoconstituents present in celery oleoresin as analysed by GC-MS were eicosadiene, benzenemethanol and methyl ester which have not been previously reported. The findings suggest that celery has QS and biofilm inhibitory potential against gram negative pathogens and can find application as food intervention techniques.
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Affiliation(s)
- Nupur Nagar
- Department of Studies in Microbiology, University of Mysore, Mysore, 570 006 India
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Asif M, Imran M. Quorum Sensing Inhibition: Current Advances of the Natural Antimicrobial Agents. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1068162019060049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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36
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Chitosan and their derivatives: Antibiofilm drugs against pathogenic bacteria. Colloids Surf B Biointerfaces 2020; 185:110627. [DOI: 10.1016/j.colsurfb.2019.110627] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 02/08/2023]
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Prateeksha, Bajpai R, Yusuf MA, Upreti DK, Gupta VK, Singh BN. Endolichenic fungus, Aspergillus quandricinctus of Usnea longissima inhibits quorum sensing and biofilm formation of Pseudomonas aeruginosa PAO1. Microb Pathog 2019; 140:103933. [PMID: 31862392 DOI: 10.1016/j.micpath.2019.103933] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/19/2019] [Accepted: 12/16/2019] [Indexed: 10/25/2022]
Abstract
Lichens are composite organisms, comprising of a fungus (mycobiont) and a blue-green alga (photobiont). Along with the mycobiont, numerous non-obligate microfungi live in lichen thalli. These microfungi are called endolichenic fungi (ELF). In recent years, the ELF are emerging as promising natural sources because of their capability to exert unique drug molecules. The current study aimed to isolate the ELF from the lichen, Usnea longissima Ach., to control of biofilm formation and quorum sensing phenomenon in Pseudomonas aeruginosa PAO1, an opportunistic multidrug resistance pathogen that uses quorum sensing network to produce an array of pathogenic agents. Therefore, inhibiting quorum sensing to manage the infection caused by PAO1 could be the paramount alternative approach to conventional antibiotics. The isolated ELF was identified by amplifying the long subunit region of the fungal genome. The extracted metabolites of ELF (MELE) using the acetone solvent was further investigated for anti-quorum sensing activity using the biomarker strain Chromobacterium violaceum 12472 which exerts violacein pigment via the AHL mediated quorum sensing signalling. Moreover, the effect of MELE was also evaluated on the production of virulence factors and biofilm formation of P. aeruginosa PAO1. The molecular identification revealed that ELF (accession number MN171299) exhibited 100% similarity with Aspergillus quandricinctus strain CBS 135.52. The MELE showed significant anti-quorum sensing activity at the concentration of 4 mg/mL without affecting the bacterial cell viability of P. aeruginosa PAO1. The MELE diminished the production of virulence factors, including pyocyanin, protease, elastase, rhamnolipids, and extracellular polysaccharides of P. aeruginosa PAO1 in a concentration-dependent manner. The MELE also disturbed biofilm formation of P. aeruginosa PAO1. The 3-D analysis of biofilm architecture showed that the thickness and surface area covered by microcolonies was decreased as the concentration of MELE was increased. The GC-MS analysis of MELE exhibited that organic acids and fatty acids are major constituents of the MELE. The present study reports first time that the ELF, A. quandricinctus possesses potential to inhibit quorum sensing and biofilm formation of P. aeruginosa and can be further exploited for hospital and healthcare facilities.
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Affiliation(s)
- Prateeksha
- Herbal Nanobiotechnology Lab, Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, Uttar Pradesh, India; Department of Biosciences, Integral University, Lucknow, 226026, Uttar Pradesh, India
| | - Rajesh Bajpai
- Lichenology Lab, CSIR-National Botanical Research Institute, Lucknow, 226001, Uttar Pradesh, India
| | - Mohd Aslam Yusuf
- Department of Bioengineering, Integral University, Lucknow, 226016, Uttar Pradesh, India
| | - Dalip Kumar Upreti
- Lichenology Lab, CSIR-National Botanical Research Institute, Lucknow, 226001, Uttar Pradesh, India
| | - Vijai Kumar Gupta
- Department of Chemistry and Biotechnology, Tallinn University of Technology, 12618 Tallinn, Estonia.
| | - Brahma Nand Singh
- Herbal Nanobiotechnology Lab, Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, Uttar Pradesh, India.
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Gómez-Gómez B, Arregui L, Serrano S, Santos A, Pérez-Corona T, Madrid Y. Unravelling mechanisms of bacterial quorum sensing disruption by metal-based nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 696:133869. [PMID: 31450048 DOI: 10.1016/j.scitotenv.2019.133869] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/09/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
Nanoparticles are released in the environment causing a negative impact in several ecosystems such as microbial communities. To adapt to environmental changes some bacteria use a collective behaviour ruled by a cell-to-cell communication process called quorum sensing (QS). In this study, the impact of some of the most employed metal-based nanoparticles, such as zinc oxide nanoparticles (ZnONPs), titanium dioxide nanoparticles (TiO2NPs) and silver nanoparticles (AgNPs) on bacterial QS has been assessed by using two different strains of the model organism Chromobacterium violaceum and by employing different experimental conditions. TiO2NPs were tested with and without applying a previous step of UV-irradiation while the effect of AgNPs of two diameter sizes (40 and 60 nm) and two different coating agents (PVP and citrate) was evaluated. Results evidenced that all nanoparticles produced a significant effect on violacein production and therefore, in the QS system. ZnONPs mainly disrupted the QS steps related to signal perception and response whereas TiO2NPs and AgNPs affected the autoinducer biosynthesis. AgNPs with the smallest size and citrate as capping agent produced the most deleterious effect while the impact of TiO2NPs was not affected by UV irradiation. The present study provides new insights into the mechanisms by which these commonly employed metal-based nanoparticles disturb bacterial QS-based communication and clearly evidences the potential risk of releasing nanoparticles to the environment, especially for microbial communities which play a key role in many environmental and technological processes.
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Affiliation(s)
- Beatriz Gómez-Gómez
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Av. Complutense s/n, 28040 Madrid, Spain
| | - Lucia Arregui
- Department of Genetics, Physiology and Microbiology, Faculty of Biology, Complutense University of Madrid, José Antonio Novais 12, 28040 Madrid, Spain
| | - Susana Serrano
- Department of Genetics, Physiology and Microbiology, Faculty of Biology, Complutense University of Madrid, José Antonio Novais 12, 28040 Madrid, Spain
| | - Antonio Santos
- Department of Genetics, Physiology and Microbiology, Faculty of Biology, Complutense University of Madrid, José Antonio Novais 12, 28040 Madrid, Spain
| | - Teresa Pérez-Corona
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Av. Complutense s/n, 28040 Madrid, Spain
| | - Yolanda Madrid
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Av. Complutense s/n, 28040 Madrid, Spain.
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Galdino ACM, de Oliveira MP, Ramalho TC, de Castro AA, Branquinha MH, Santos ALS. Anti-Virulence Strategy against the Multidrug-Resistant Bacterial Pathogen Pseudomonas aeruginosa: Pseudolysin (Elastase B) as a Potential Druggable Target. Curr Protein Pept Sci 2019; 20:471-487. [PMID: 30727891 DOI: 10.2174/1389203720666190207100415] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 01/26/2019] [Accepted: 01/31/2019] [Indexed: 11/22/2022]
Abstract
Pseudomonas aeruginosa is a non-fermentative, gram-negative bacterium that is one of the most common pathogens responsible for hospital-acquired infections worldwide. The management of the infections caused by P. aeruginosa represents a huge challenge in the healthcare settings due to the increased emergence of resistant isolates, some of them resistant to all the currently available antimicrobials, which results in elevated morbimortality rates. Consequently, the development of new therapeutic strategies against multidrug-resistant P. aeruginosa is urgent and needful. P. aeruginosa is wellrecognized for its extreme genetic versatility and its ability to produce a lush variety of virulence factors. In this context, pseudolysin (or elastase B) outstands as a pivotal virulence attribute during the infectious process, playing multifunctional roles in different aspects of the pathogen-host interaction. This protein is a 33-kDa neutral zinc-dependent metallopeptidase that is the most abundant peptidase found in pseudomonal secretions, which contributes to the invasiveness of P. aeruginosa due to its ability to cleave several extracellular matrix proteins and to disrupt the basolateral intercellular junctions present in the host tissues. Moreover, pseudolysin makes P. aeruginosa able to overcome host defenses by the hydrolysis of many immunologically relevant molecules, including antibodies and complement components. The attenuation of this striking peptidase therefore emerges as an alternative and promising antivirulence strategy to combat antibiotic-refractory infections caused by P. aeruginosa. The anti-virulence approach aims to disarm the P. aeruginosa infective arsenal by inhibiting the expression/activity of bacterial virulence factors in order to reduce the invasiveness of P. aeruginosa, avoiding the emergence of resistance since the proliferation is not affected. This review summarizes the most relevant features of pseudolysin and highlights this enzyme as a promising target for the development of new anti-virulence compounds.
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Affiliation(s)
- Anna Clara M Galdino
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Goes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Programa de Pós-Graduação em Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Matheus P de Oliveira
- Department of Integrative Biology and Physiology, University of California, Los Angeles, CA, United States
| | - Teodorico C Ramalho
- Departamento de Quimica, Universidade Federal de Lavras, Minas Gerais, Brazil
| | | | - Marta H Branquinha
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Goes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - André L S Santos
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Goes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Programa de Pós-Graduação em Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Sharahi JY, Azimi T, Shariati A, Safari H, Tehrani MK, Hashemi A. Advanced strategies for combating bacterial biofilms. J Cell Physiol 2019; 234:14689-14708. [PMID: 30693517 DOI: 10.1002/jcp.28225] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/16/2019] [Indexed: 01/24/2023]
Abstract
Biofilms are communities of microorganisms that are formed on and attached to living or nonliving surfaces and are surrounded by an extracellular polymeric material. Biofilm formation enjoys several advantages over the pathogens in the colonization process of medical devices and patients' organs. Unlike planktonic cells, biofilms have high intrinsic resistance to antibiotics and sanitizers, and overcoming them is a significant problematic challenge in the medical and food industries. There are no approved treatments to specifically target biofilms. Thus, it is required to study and present innovative and effective methods to combat a bacterial biofilm. In this review, several strategies have been discussed for combating bacterial biofilms to improve healthcare, food safety, and industrial process.
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Affiliation(s)
- Javad Yasbolaghi Sharahi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Taher Azimi
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Aref Shariati
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Safari
- Health Promotion Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Melika Khanzadeh Tehrani
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Hashemi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Pattnaik S, Barik S, Muralitharan G, Busi S. Ferulic acid encapsulated chitosan-tripolyphosphate nanoparticles attenuate quorum sensing regulated virulence and biofilm formation in Pseudomonas aeruginosa PAO1. IET Nanobiotechnol 2019; 12:1056-1061. [PMID: 30964013 DOI: 10.1049/iet-nbt.2018.5114] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Pseudomonas aeruginosa is an opportunistic nosocomial pathogenic microorganism causing majority of acute hospital-acquired infections and poses a serious public health concern. The persistence of bacterial infection can be attributed to the highly synchronised cell-to-cell communication phenomenon, quorum sensing (QS) which regulates the expression of a number of virulence factors and biofilm formation which eventually imparts resistance to the conventional antimicrobial therapy. In this study, the anti-quorum sensing and anti-biofilm potential of ferulic acid encapsulated chitosan-tripolyphosphate nanoparticles (FANPs) was investigated against P. aeruginosa PAO1 and compared with native ferulic acid. Dynamic light scattering and transmission electron microscopic analysis confirmed the synthesis of FANPs with mean diameter of 215.55 nm. FANPs showed significant anti-quorum sensing activity by downregulating QS-regulated virulence factors. In addition, FANPs also significantly attenuate the swimming and swarming motility of P. aeruginosa PAO1. The anti-biofilm efficacy of FANPs as compared to native ferulic acid was established by light and confocal laser scanning microscopic analysis. The promising results of FANPs in attenuating QS highlighted the slow and sustained release of ferulic acid at the target sites with greater efficacy suggesting its application towards the development of anti-infective agents.
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Affiliation(s)
- Subhaswaraj Pattnaik
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry-605 014, India
| | - Subhashree Barik
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry-605 014, India
| | - Gangatharan Muralitharan
- Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappali-620 024, India
| | - Siddhardha Busi
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry-605 014, India.
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Galdino ACM, Viganor L, de Castro AA, da Cunha EFF, Mello TP, Mattos LM, Pereira MD, Hunt MC, O'Shaughnessy M, Howe O, Devereux M, McCann M, Ramalho TC, Branquinha MH, Santos ALS. Disarming Pseudomonas aeruginosa Virulence by the Inhibitory Action of 1,10-Phenanthroline-5,6-Dione-Based Compounds: Elastase B (LasB) as a Chemotherapeutic Target. Front Microbiol 2019; 10:1701. [PMID: 31428062 PMCID: PMC6688126 DOI: 10.3389/fmicb.2019.01701] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 07/10/2019] [Indexed: 11/13/2022] Open
Abstract
Elastase B (lasB) is a multifunctional metalloenzyme secreted by the gram-negative pathogen Pseudomonas aeruginosa, and this enzyme orchestrates several physiopathological events during bacteria-host interplays. LasB is considered to be a potential target for the development of an innovative chemotherapeutic approach, especially against multidrug-resistant strains. Recently, our group showed that 1,10-phenanthroline-5,6-dione (phendione), [Ag(phendione)2]ClO4 (Ag-phendione) and [Cu(phendione)3](ClO4)2.4H2O (Cu-phendione) had anti-P. aeruginosa action against both planktonic- and biofilm-growing cells. In the present work, we have evaluated the effects of these compounds on the (i) interaction with the lasB active site using in silico approaches, (ii) lasB proteolytic activity by using a specific fluorogenic peptide substrate, (iii) lasB gene expression by real time-polymerase chain reaction, (iv) lasB protein secretion by immunoblotting, (v) ability to block the damages induced by lasB on a monolayer of lung epithelial cells, and (vi) survivability of Galleria mellonella larvae after being challenged with purified lasB and lasB-rich bacterial secretions. Molecular docking analyses revealed that phendione and its Ag+ and Cu2+ complexes were able to interact with the amino acids forming the active site of lasB, particularly Cu-phendione which exhibited the most favorable interaction energy parameters. Additionally, the test compounds were effective inhibitors of lasB activity, blocking the in vitro cleavage of the peptide substrate, aminobenzyl-Ala-Gly-Leu-Ala-p-nitrobenzylamide, with Cu-phendione having the best inhibitory action (K i = 90 nM). Treating living bacteria with a sub-inhibitory concentration (½ × MIC value) of the test compounds caused a significant reduction in the expression of the lasB gene as well as its mature protein production/secretion. Further, Ag-phendione and Cu-phendione offered protective action for lung epithelial cells, reducing the A549 monolayer damage by approximately 32 and 42%, respectively. Interestingly, Cu-phendione mitigated the toxic effect of both purified lasB molecules and lasB-containing bacterial secretions in the in vivo model, increasing the survival time of G. mellonella larvae. Collectively, these data reinforce the concept of lasB being a veritable therapeutic target and phendione-based compounds (mainly Cu-phendione) being prospective anti-virulence drugs against P. aeruginosa.
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Affiliation(s)
- Anna Clara M Galdino
- Department of General Microbiology, Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Postgraduate Program in Biochemistry, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lívia Viganor
- Department of General Microbiology, Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,The Centre for Biomimetic and Therapeutic Research, Focas Research Institute, Technological University Dublin, Dublin, Ireland
| | | | | | - Thaís P Mello
- Department of General Microbiology, Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Larissa M Mattos
- Postgraduate Program in Biochemistry, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcos D Pereira
- Postgraduate Program in Biochemistry, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mary C Hunt
- The Centre for Biomimetic and Therapeutic Research, Focas Research Institute, Technological University Dublin, Dublin, Ireland
| | - Megan O'Shaughnessy
- The Centre for Biomimetic and Therapeutic Research, Focas Research Institute, Technological University Dublin, Dublin, Ireland
| | - Orla Howe
- The Centre for Biomimetic and Therapeutic Research, Focas Research Institute, Technological University Dublin, Dublin, Ireland
| | - Michael Devereux
- The Centre for Biomimetic and Therapeutic Research, Focas Research Institute, Technological University Dublin, Dublin, Ireland
| | - Malachy McCann
- Department of Chemistry, Maynooth University, Maynooth, Ireland
| | | | - Marta H Branquinha
- Department of General Microbiology, Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - André L S Santos
- Department of General Microbiology, Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Postgraduate Program in Biochemistry, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Chen M, Liu H, Yan F. Oscillatory dynamics mechanism induced by protein synthesis time delay in quorum-sensing system. Phys Rev E 2019; 99:062405. [PMID: 31330665 DOI: 10.1103/physreve.99.062405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Indexed: 01/22/2023]
Abstract
Recent experimental evidence reports that the oscillatory behavior of quorum sensing plays an extremely important role in the process of bacterial synthesis and release drug to fight cancer. As we know, the six substances AiiA, LuxI, internal AHL, external AHL, AHL substrate, and H_{2}O_{2} are the core parts of the quorum-sensing system. Here, the effects of several important factors, including time delay, variable H_{2}O_{2}, AHL synthesis rate induced by LuxI, and AHL degradation rate induced by AiiA on the oscillatory behavior of the quorum-sensing system are studied theoretically based on a part of mathematical model describing the interaction of the above six substances proposed by Prindle et al. [Nature 508, 387 (2014)10.1038/nature13238]. The results show that the time delay is a prerequisite for inducing oscillation of the quorum-sensing system. Furthermore, the length of time delay can determine the amplitude and period of oscillation. As a further matter, the change of H_{2}O_{2} concentration can induce the oscillatory behavior of the quorum-sensing system. In addition, under the regulation of H_{2}O_{2}, the period robustness of the quorum-sensing system is increased. Similarly, the quorum-sensing system exhibits periodic oscillation when AHL synthesis rate induced by LuxI less than a certain critical value, unless it displays a steady state. Additionally, a too-high or too-low level of AHL degradation rate induced by AiiA will fail to generate oscillation of the quorum-sensing system, only the intermediate level will cause oscillation. Finally, the two and three parameter regions in which the quorum-sensing system exhibits oscillation behavior are generated.
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Affiliation(s)
- Menghan Chen
- Department of Mathematics, Yunnan Normal University, Kunming 650500, China
| | - Haihong Liu
- Department of Mathematics, Yunnan Normal University, Kunming 650500, China
| | - Fang Yan
- Department of Mathematics, Yunnan Normal University, Kunming 650500, China
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Prateeksha, Rao CV, Das AK, Barik SK, Singh BN. ZnO/Curcumin Nanocomposites for Enhanced Inhibition of Pseudomonas aeruginosa Virulence via LasR-RhlR Quorum Sensing Systems. Mol Pharm 2019; 16:3399-3413. [PMID: 31260316 DOI: 10.1021/acs.molpharmaceut.9b00179] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The indiscriminate and excessive use of antibiotics has ultimately led to the emergence of bacterial resistant mutants or superbugs. These superbugs are difficult to control with conventional antibiotics. Disabling quorum sensing (QS), a population-density-dependent cell-to-cell communication process used by bacteria to coordinate the expression of virulence genes and biofilm formation, with dietary phytochemicals is emerging as a non-antibiotic strategy to inhibit bacterial pathogenicity. Although curcumin is an anti-QS agent and its delivery to cells has been a challenge due to poor bioavailability, ZnO/curcumin nanocomposites (ZnC-NCs) were fabricated with enhanced delivery of curcumin inside the bacterial superbug Pseudomonas aeruginosa PAO1 for effective inhibition of its QS and biofilm formation. Sustained release of curcumin from ZnC-NCs was observed where 51% curcumin at pH 7.2 and 83% curcumin at pH 5.5 were released within 48 h. ZnC-NCs also decreased the production of virulence factors and biofilm formation without affecting planktonic cell growth. Both LasR and RhlR QS systems were inhibited by ZnC-NCs. ZnC-NCs were also capable of protecting both mice as well as lung epithelial cells from killing by PAO1. The superoxide anions (O2·-) were also found as key players in suppressing PAO1 QS systems by ZnC-NCs. Overall, ZnC-NCs enhanced curcumin bioavailability for effective inhibition of QS signaling in P. aeruginosa via LasR-RhlR suppression and O2·- generation.
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Affiliation(s)
- Prateeksha
- Pharmacology Division , CSIR-National Botanical Research Institute , Lucknow 226001 , India
| | - Chandana V Rao
- Pharmacology Division , CSIR-National Botanical Research Institute , Lucknow 226001 , India
| | - Arun K Das
- Pharmacology Division , CSIR-National Botanical Research Institute , Lucknow 226001 , India
| | - Saroj K Barik
- Pharmacology Division , CSIR-National Botanical Research Institute , Lucknow 226001 , India
| | - Brahma N Singh
- Pharmacology Division , CSIR-National Botanical Research Institute , Lucknow 226001 , India
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Saleh MM, Sadeq RA, Latif HKA, Abbas HA, Askoura M. Zinc oxide nanoparticles inhibits quorum sensing and virulence in Pseudomonas aeruginosa. Afr Health Sci 2019; 19:2043-2055. [PMID: 31656488 PMCID: PMC6794539 DOI: 10.4314/ahs.v19i2.28] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Background Quorum sensing inhibitionis an advanced strategy that aims to interfere with bacterial cell-to-cell communication systems (quorum sensing), which regulate virulence factors production in Pseudomonas aeruginosa, in order to overcome the globalcrisis of antimicrobial resistance. Objectives Study the potential quorum sensing inhibitory effect of Zinc oxide (ZnO)nanoparticlesin Pseudomonas aeruginosa and the impact on production of virulence factors. Methods Quorum sensing inhibitory effect of ZnO was evaluated by assessing its ability to reducePseudomonas aeruginosa virulence factors production; rhamnolipids, pyocyanin, pyoverdin, hemolysins, elastase and proteases. Furthermore, qRT-PCR was performed to determine ZnO inhibitory effect onQS-regulatory geneslasI, lasR, rhlI, rhlR, pqsA and pqsR that control virulence factors secretion. Moreover, mice survival test was conducted to investigate the influence of ZnO on Pseudomonas aeruginosa-induced mortality in vivo. Results ZnO revealed a statistically significant reduction in the production of QS-controlled virulence factors rhamnolipids, pyocyanin, pyoverdin, hemolysins, elastase and proteases. Furthermore, ZnO exhibited a significant decrease in the relative expression of QS-regulatory geneslasI, lasR, rhlI, rhlR, pqsA and pqsR. Additionally, ZnO significantly reduced the pathogenesis of Pseudomonas aeruginosa in vivo Conclusion ZnO nanoparticles can be used as a quorum sensing inhibitor in Pseudomonas aeruginosa infections either as an adjuvant or alternative to conventional antimicrobials.
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Affiliation(s)
- Moustafa M Saleh
- Department of Microbiology and Immunology, Faculty of Pharmacy, Port Said University, Port Said 42515, Egypt
| | - Refa't A Sadeq
- Department of Microbiology and Immunology, Faculty of Medicine, Port Said University, Egypt
| | - Hemat K Abdel Latif
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Egypt
| | - Hisham A Abbas
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Egypt
| | - Momen Askoura
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Egypt
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Prateeksha, Barik SK, Singh BN. Nanoemulsion-loaded hydrogel coatings for inhibition of bacterial virulence and biofilm formation on solid surfaces. Sci Rep 2019; 9:6520. [PMID: 31019240 PMCID: PMC6482171 DOI: 10.1038/s41598-019-43016-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 04/15/2019] [Indexed: 12/02/2022] Open
Abstract
The indiscriminate use of antibiotics has led to the emergence of drug-resistant bacteria which has become one of the biggest challenges of the twenty-first century for the researchers to combat and in turn search for novel targets which could lead to the development of effective and sustainable therapies. Inhibition of biofilm formation and virulence of bacterial pathogens is an emerging approach to address the challenges related to bacterial infections. To suppress the virulence and biofilm formation by Escherichia coli O157:H7 (ECOH), we developed stable nanoemulsion (NE) of Gaultheria fragrantissima Wall. essential oil’s (EO) bioactive compounds, viz., eugenol (E-NE) and methyl salicylate (MS-NE) that showed significantly higher anti-biofilm and anti-virulence activities as compared to eugenol and methyl salicylate without affecting ECOH planktonic cell growth. Transcriptional analysis showed that E-NE and MS-NE reduced the expression of genes, including curli, type I fimbriae, Shiga-like toxins, quorum sensing, and ler-controlled toxins, which are needed for biofilm formation, pathogenicity, and attachment. E-NE and MS-NE loaded hydrogel coatings showed superior anti-biofilm activity against ECOH on glass, plastic and meat surfaces as compared to eugenol and methyl salicylate loaded coatings. Conclusively, NE-loaded hydrogel coatings could be used in combating ECOH infection on solid surfaces through anti-biofilm and anti-virulence strategies.
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Affiliation(s)
- Prateeksha
- Herbal Nanobiotechnology Lab, Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Saroj Kanta Barik
- Herbal Nanobiotechnology Lab, Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India.
| | - Brahma Nand Singh
- Herbal Nanobiotechnology Lab, Pharmacology Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India.
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Antibiofilm and antivirulence properties of chitosan-polypyrrole nanocomposites to Pseudomonas aeruginosa. Microb Pathog 2019; 128:363-373. [DOI: 10.1016/j.micpath.2019.01.033] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 01/16/2019] [Accepted: 01/18/2019] [Indexed: 12/12/2022]
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48
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Nanostructured biomedical selenium at the biological interface (Review). Biointerphases 2018; 13:06D301. [DOI: 10.1116/1.5042693] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Kalia VC, Patel SKS, Kang YC, Lee JK. Quorum sensing inhibitors as antipathogens: biotechnological applications. Biotechnol Adv 2018; 37:68-90. [PMID: 30471318 DOI: 10.1016/j.biotechadv.2018.11.006] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 10/19/2018] [Accepted: 11/18/2018] [Indexed: 12/20/2022]
Abstract
The mechanisms through which microbes communicate using signal molecules has inspired a great deal of research. Microbes use this exchange of information, known as quorum sensing (QS), to initiate and perpetuate infectious diseases in eukaryotic organisms, evading the eukaryotic defense system by multiplying and expressing their pathogenicity through QS regulation. The major issue to arise from such networks is increased bacterial resistance to antibiotics, resulting from QS-dependent mediation of the formation of biofilm, the induction of efflux pumps, and the production of antibiotics. QS inhibitors (QSIs) of diverse origins have been shown to act as potential antipathogens. In this review, we focus on the use of QSIs to counter diseases in humans as well as plants and animals of economic importance. We also discuss the challenges encountered in the potential applications of QSIs.
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Affiliation(s)
- Vipin Chandra Kalia
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea.
| | - Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yun Chan Kang
- Department of Materials Science and Engineering, Korea University, Anam-Dong, Seongbuk-Gu, Seoul 02841, Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea.
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Subhaswaraj P, Barik S, Macha C, Chiranjeevi PV, Siddhardha B. Anti quorum sensing and anti biofilm efficacy of cinnamaldehyde encapsulated chitosan nanoparticles against Pseudomonas aeruginosa PAO1. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.08.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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