1
|
Abdollahi M, Andalib S, Ghorbani R, Afshar D, Gholinejad M, Abdollahi H, Akbari A, Nikfarjam N. Polydopamine contained hydrogel nanocomposites with combined antimicrobial and antioxidant properties for accelerated wound healing. Int J Biol Macromol 2024; 268:131700. [PMID: 38657919 DOI: 10.1016/j.ijbiomac.2024.131700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 04/10/2024] [Accepted: 04/18/2024] [Indexed: 04/26/2024]
Abstract
Overproduction of reactive oxygen species (ROS) in infected wounds induces a tremendous inflammatory reaction to delay wound healing. To address this problem, we designed a multifunctional polyacrylamide/PVA-based hydrogel containing synthesized poly(1-glycidyl-3-butylimidazolium salicylate) (polyGBImSal) and fabricated polydopamine-coated polyphenolic nanosheet (PDA@PNS) for wound dressing. The PDA@PNS particles were designed to induce I) antioxidant and anti-inflammatory features through ROS-scavenging and II) cell adhesive properties by the existing polydopamine into the hydrogels. The poly(ionic liquid)-based polyGBImSal was designed to allocate effective hydrogel antimicrobial activity. The fabricated hydrogel nanocomposites showed excellent properties in the swelling ratio, cell adhesiveness, protein adsorption, and anti-inflammatory, proving their general performance for application in wound healing. Furthermore, these hydrogels showed high antimicrobial activity (over 95 %) against three common wound-infecting pathogenic microbes: Escherichia coli, Staphylococcus aureus, and Candida albicans. The healing process of full-thickness dermal wounds in rats was accelerated by applying hydrogel nanocomposites with 0.5 wt% of PDA@PNS and 28 wt% of polyGBImSal. The wound closure contraction attained full closure, reaching 100 %, after 14 days, contrasted with the control group employing commercial wound dressing (Tegaderm), which achieved a closure rate of 68 % within the equivalent timeframe. These results make these hydrogel nanocomposites promising candidates for multifunctional wound dressing applications.
Collapse
Affiliation(s)
- Mahin Abdollahi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Sina Andalib
- School of Pharmacy, Zanjan University of Medical Sciences, Zanjan 45139-56111, Iran
| | - Roghayeh Ghorbani
- Department of Medical Biotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Davoud Afshar
- Department of Microbiology and Virology, School of Medicine, Zanjan University of Medical Sciences, Zanjan 45139-56111, Iran
| | - Mohammad Gholinejad
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Hamed Abdollahi
- Department of Computer Science and Engineering, University of South Carolina, 29201 Columbia, SC, USA
| | - Ali Akbari
- Solid Tumor Research Center, Cellular and Molecular Medicine Research Institute, Urmia University of Medical Sciences, Urmia 57147, Iran
| | - Nasser Nikfarjam
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran; Department of Chemical Engineering, College of Engineering and Computing, University of South Carolina, Columbia 29208, SC, USA.
| |
Collapse
|
2
|
Yamaguchi J, Manome T, Hara Y, Yamazaki Y, Nakamura Y, Ishibashi M, Takaya A. Physalin H, physalin B, and isophysalin B suppress the quorum-sensing function of Staphylococcus aureus by binding to AgrA. Front Pharmacol 2024; 15:1365815. [PMID: 38659576 PMCID: PMC11039898 DOI: 10.3389/fphar.2024.1365815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 03/25/2024] [Indexed: 04/26/2024] Open
Abstract
The virulence of Staphylococcus aureus, including methicillin-resistant S. aureus (MRSA), depends on the expression of toxins and virulence factors controlled by the quorum-sensing (QS) system, encoded on the virulence accessory gene regulator (agr) locus. The aim of this study was to identify a phytochemical that inhibits Agr-QS function and to elucidate its mechanism. We screened 577 compounds and identified physalin H, physalin B, and isophysalin B--phytochemicals belonging to physalins found in plants of the Solanaceae family--as novel Agr-QS modulators. Biological analyses and in vitro protein-DNA binding assays suggested that these physalins suppress gene expression related to the Agr-QS system by inhibiting binding of the key response regulator AgrA to the agr promoters, reducing the function of hemolytic toxins downstream of these genes in MRSA. Furthermore, although physalin F suppressed gene expression in the Agr-QS system, its anti-hemolytic activity was lower than that of physalins H, B, and isophysalin B. Conversely, five physalins isolated from the same plant with the ability to suppress Agr-QS did not reduce bacterial Agr-QS activity but inhibited AgrA binding to DNA in vitro. A docking simulation revealed that physalin interacts with the DNA-binding site of AgrA in three docking states. The carbonyl oxygens at C-1 and C-18 of physalins, which can suppress Agr-QS, were directed to residues N201 and R198 of AgrA, respectively, whereas these carbonyl oxygens of physalins, without Agr-QS suppression activity, were oriented in different directions. Next, 100-ns molecular dynamics simulations revealed that the hydrogen bond formed between the carbonyl oxygen at C-15 of physalins and L186 of AgrA functions as an anchor, sustaining the interaction between the carbonyl oxygen at C-1 of physalins and N201 of AgrA. Thus, these results suggest that physalin H, physalin B, and isophysalin B inhibit the interaction of AgrA with the agr promoters by binding to the DNA-binding site of AgrA, suppressing the Agr-QS function of S. aureus. Physalins that suppress the Agr-QS function are proposed as potential lead compounds in the anti-virulence strategy for MRSA infections.
Collapse
Affiliation(s)
- Junpei Yamaguchi
- Department of Infection Control Science, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Teruhisa Manome
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
- Laboratory of Natural Products Chemistry, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Yasumasa Hara
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
- Faculty of Agriculture, Kagawa University, Takamatsu, Japan
| | - Yuriko Yamazaki
- Cutaneous Allergy and Host Defense, Immunology Frontier Research Center, Osaka University, Osaka, Japan
- Department of Dermatology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yuumi Nakamura
- Cutaneous Allergy and Host Defense, Immunology Frontier Research Center, Osaka University, Osaka, Japan
- Department of Dermatology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Masami Ishibashi
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
- School of Pharmacy at Fukuoka, International University of Health and Welfare, Okawa, Japan
| | - Akiko Takaya
- Department of Infection Control Science, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
- Medical Mycology Research Center, Chiba University, Chiba, Japan
- Plant Molecular Science Center, Chiba University, Chiba, Japan
| |
Collapse
|
3
|
Alqahtani M, Almukainzi M, Alghoribi MF, El-Mahdy AM. Antivirulence Effects of Trans-Resveratrol and Curcumin on Methicillin-Resistant Staphylococcus aureus (MRSA) from Saudi Arabia. Life (Basel) 2024; 14:491. [PMID: 38672761 PMCID: PMC11051421 DOI: 10.3390/life14040491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/06/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is a common resistant bacterium, whose resistance has expanded to commonly used antibiotics. It is crucial to create novel treatments to tackle bacterial resistance. Trans-resveratrol and curcumin are naturally occurring phenolic compounds, whose effects on MRSA virulence are the subject of this investigation. Sub-MICs of trans-resveratrol and curcumin were tested on the virulence factors of 50 MRSA clinical isolates (CIs), including biofilm, hemolysin, hemagglutination, protease, and lecithinase. The distribution of the virulence factors of the CIs was as follows: hemolysin: 98%, hemagglutination: 70%, protease: 62%, biofilm: 56%, and lecithinase: 52%. The sub-MIC that could reduce the effect of the tested virulence factors by 50% or more (IC50) was observed in the strains that showed susceptibility to the individual administration of trans-resveratrol at 50 µg/mL and curcumin at 20 µg/mL. Hemagglutination and hemolysin activity were inhibited by at least 50% in the majority of CIs (57-94%). Meanwhile, the IC50 for protease and biofilm was observed in 6.5-17.8% of the CIs. A few of the CIs were susceptible to lecithinase inhibition, but all showed a full inhibition. This research supports the possibility of the use of these compounds to reduce the bacterial virulence that can reduce antibiotic utilization, and eventually, they can become a potential alternative treatment in combating bacterial resistance.
Collapse
Affiliation(s)
- Maisa Alqahtani
- Biology Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - May Almukainzi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Majed F. Alghoribi
- Infectious Diseases Research Department, King Abdullah International Medical Research Center, Riyadh 11426, Saudi Arabia;
- Department of Pathology and Laboratory Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh 11426, Saudi Arabia
- Department of Pathology and Laboratory Medicine, King Abdulaziz Medical City (KAMC), Ministry of National Guard Health Affairs (MNGHA), Riyadh 11481, Saudi Arabia
| | - Areej M. El-Mahdy
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;
| |
Collapse
|
4
|
Jacobtorweihen J, Hartmann A, Hofer S, Spiegler V. Antibacterial Activities of the Algal Bromophenol Methylrhodomelol Against Pseudomonas aeruginosa. Planta Med 2024. [PMID: 38580306 DOI: 10.1055/a-2289-2423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/07/2024]
Abstract
Methylrhodomelol (1: ) is a bromophenol from the red alga Vertebrata lanosa that has been associated with antimicrobial properties. The aim of the current study was, therefore, to assess the antimicrobial potential of this compound in more detail against the gram-negative pathogen Pseudomonas aeruginosa. 1: exerted weak bacteriostatic activity against different strains when grown in minimal medium, whereas other phenolics were inactive. In addition, 1: (35 and 10 µg/mL) markedly enhanced the susceptibility of multidrug-resistant P. aeruginosa toward the aminoglycoside gentamicin, while it did not affect the viability of Vero kidney cells up to 100 µM. Finally, pyoverdine release was reduced in bacteria treated at sub-inhibitory concentration, but no effect on other virulence factors was observed. Transcriptome analysis of treated versus untreated P. aeruginosa indicated an interference of 1: with bacterial carbon and energy metabolism, which was corroborated by RT-qPCR and decreased ATP-levels in treated bacteria. In summary, the current study characterized the antibacterial properties of methylrhodomelol, revealed its potential as an adjuvant to standard antibiotics, and generated a hypothesis on its mode of action.
Collapse
Affiliation(s)
- Joshua Jacobtorweihen
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Germany
| | - Anja Hartmann
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Austria
| | - Stefanie Hofer
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Austria
| | - Verena Spiegler
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Germany
| |
Collapse
|
5
|
Kim H, Kim MH, Choi UL, Chung MS, Yun CH, Shim Y, Oh J, Lee S, Lee GW. Molecular and Phenotypic Investigation on Antibacterial Activities of Limonene Isomers and Its Oxidation Derivative against Xanthomonas oryzae pv. oryzae. J Microbiol Biotechnol 2024; 34:562-569. [PMID: 38247219 PMCID: PMC11016764 DOI: 10.4014/jmb.2311.11016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/02/2024] [Accepted: 01/05/2024] [Indexed: 01/23/2024]
Abstract
Xanthomonas oryzae pv. oryzae (Xoo) causes a devastating bacterial leaf blight in rice. Here, the antimicrobial effects of D-limonene, L-limonene, and its oxidative derivative carveol against Xoo were investigated. We revealed that carveol treatment at ≥ 0.1 mM in liquid culture resulted in significant decrease in Xoo growth rate (> 40%) in a concentration-dependent manner, and over 1 mM, no growth was observed. The treatment with D-limonene and L-limonene also inhibited the Xoo growth but to a lesser extent compared to carveol. These results were further elaborated with the assays of motility, biofilm formation and xanthomonadin production. The carveol treatment over 1 mM caused no motilities, basal level of biofilm formation (< 10%), and significantly reduced xanthomonadin production. The biofilm formation after the treatment with two limonene isomers was decreased in a concentration-dependent manner, but the degree of the effect was not comparable to carveol. In addition, there was negligible effect on the xanthomonadin production mediated by the treatment of two limonene isomers. Field emission-scanning electron microscope (FE-SEM) unveiled that all three compounds used in this study cause severe ultrastructural morphological changes in Xoo cells, showing shrinking, shriveling, and holes on their surface. Moreover, quantitative real-time PCR revealed that carveol and D-limonene treatment significantly down-regulated the expression levels of genes involved in virulence and biofilm formation of Xoo, but not with L-limonene. Together, we suggest that limonenes and carveol will be the candidates of interest in the development of biological pesticides.
Collapse
Affiliation(s)
- Hyeonbin Kim
- Green-Bio Division, Jeonju AgroBio-Materials Institute, Jeonju 54810, Republic of Korea
| | - Mi Hee Kim
- Green-Bio Division, Jeonju AgroBio-Materials Institute, Jeonju 54810, Republic of Korea
| | - Ui-Lim Choi
- Green-Bio Division, Jeonju AgroBio-Materials Institute, Jeonju 54810, Republic of Korea
| | - Moon-Soo Chung
- Division of Radiation Biotechnology, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Republic of Korea
| | - Chul-Ho Yun
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Youngkun Shim
- Microzyme Co., Ltd. Research and Development Department, Damyang-gun, Jeollanam-do 57385, Republic of Korea
| | - Jaejun Oh
- Microzyme Co., Ltd. Research and Development Department, Damyang-gun, Jeollanam-do 57385, Republic of Korea
| | - Sungbeom Lee
- Division of Radiation Biotechnology, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Republic of Korea
- Department of Radiation Science and Technology, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Gun Woong Lee
- Green-Bio Division, Jeonju AgroBio-Materials Institute, Jeonju 54810, Republic of Korea
| |
Collapse
|
6
|
Gao Y, Hu Y, Ye J, Ma Z, Feng J, Liu X, Lei P, Szostak M. Pd-NHC (NHC = N-Heterocyclic Carbene)-Catalyzed B-Alkyl Suzuki Cross-Coupling of 2-Pyridyl Ammonium Salts by N-C Activation: Application to the Discovery of Agrochemical Molecular Hybrids. Org Lett 2024; 26:2309-2314. [PMID: 38466078 DOI: 10.1021/acs.orglett.4c00549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
2-Alkylpyridines are a privileged scaffold throughout the realm of organic synthesis and play a key role in natural products, pharmaceuticals, and agrochemicals. Herein, we report the first B-alkyl Suzuki cross-coupling of 2-pyridyl ammonium salts to access functionalized 2-alkylpyridines. The use of well-defined, operationally simple Pd-NHCs permits for an exceptionally broad scope of the challenging B-alkyl C-N cross-coupling with organoboranes containing β-hydrogen, representing a novel method for the discovery of highly sought-after molecules for plant protection.
Collapse
Affiliation(s)
- Yanqing Gao
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuge Hu
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jiuhui Ye
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhiqing Ma
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Juntao Feng
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xili Liu
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Peng Lei
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| |
Collapse
|
7
|
Beram FM, Ali SN, Mesbahian G, Pashizeh F, Keshvadi M, Mashayekhi F, Khodadadi B, Bashiri Z, Moeinzadeh A, Rezaei N, Namazifard S, Hossein-Khannazer N, Tavakkoli Yaraki M. 3D Printing of Alginate/Chitosan-Based Scaffold Empowered by Tyrosol-Loaded Niosome for Wound Healing Applications: In Vitro and In Vivo Performances. ACS Appl Bio Mater 2024; 7:1449-1468. [PMID: 38442406 DOI: 10.1021/acsabm.3c00814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
This study introduces a tyrosol-loaded niosome integrated into a chitosan-alginate scaffold (Nio-Tyro@CS-AL), employing advanced electrospinning and 3D printing techniques for wound healing applications. The niosomes, measuring 185.40 ± 6.40 nm with a polydispersity index of 0.168 ± 0.012, encapsulated tyrosol with an efficiency of 77.54 ± 1.25%. The scaffold's microsized porous structure (600-900 μm) enhances water absorption, promoting cell adhesion, migration, and proliferation. Mechanical property assessments revealed the scaffold's enhanced resilience, with niosomes increasing the compressive strength, modulus, and strain to failure, indicative of its suitability for wound healing. Controlled tyrosol release was demonstrated in vitro, essential for therapeutic efficacy. The scaffold exhibited significant antibacterial activity against Pseudomonas aeruginosa and Staphylococcus aureus, with substantial biofilm inhibition and downregulation of bacterial genes (ndvb and icab). A wound healing assay highlighted a notable increase in MMP-2 and MMP-9 mRNA expression and the wound closure area (69.35 ± 2.21%) in HFF cells treated with Nio-Tyro@CS-AL. In vivo studies in mice confirmed the scaffold's biocompatibility, showing no significant inflammatory response, hypertrophic scarring, or foreign body reaction. Histological evaluations revealed increased fibroblast and macrophage activity, enhanced re-epithelialization, and angiogenesis in wounds treated with Nio-Tyro@CS-AL, indicating effective tissue integration and repair. Overall, the Nio-Tyro@CS-AL scaffold presents a significant advancement in wound-healing materials, combining antibacterial properties with enhanced tissue regeneration, and holds promising potential for clinical applications in wound management.
Collapse
Affiliation(s)
| | - Saba Naeimaei Ali
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin 3419759811, Iran
| | - Ghazal Mesbahian
- School of Pharmacy, International Campus, Tehran University of Medical Sciences, Tehran 1416634793, Iran
| | - Fatemeh Pashizeh
- Department of Immunology, School of Medicine, Shahid Sadoughi University of Medical Science, Yazd 8916188635, Iran
| | | | - Farzaneh Mashayekhi
- Rasoul Akram Hospital, Iran University of Medical Sciences (IUMS), Tehran 14535, Iran
| | - Behnoosh Khodadadi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran 1993891176, Iran
| | - Zahra Bashiri
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran 14535, Iran
| | - Alaa Moeinzadeh
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran 14535, Iran
| | - Niloufar Rezaei
- Gastroenterology and Liver Diseases Research Center, Research, Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran
| | - Saina Namazifard
- Department of Mechanical and Aerospace Engineering, The University of Texas at Arlington, 500 West First Street, Arlington, Texas 76019, United States
| | - Nikoo Hossein-Khannazer
- Gastroenterology and Liver Diseases Research Center, Research, Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 19839-63113, Iran
| | - Mohammad Tavakkoli Yaraki
- School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| |
Collapse
|
8
|
Alzamami A, Alturki NA, Khan K, Basharat Z, Mashraqi MM. Screening inhibitors against the Ef-Tu of Fusobacterium nucleatum: a docking, ADMET and PBPK assessment study. Mol Divers 2024:10.1007/s11030-024-10815-x. [PMID: 38457020 DOI: 10.1007/s11030-024-10815-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 01/21/2024] [Indexed: 03/09/2024]
Abstract
The oral pathogen Fusobacterium nucleatum has recently been associated with an elevated risk of colorectal cancer (CRC), endometrial metastasis, chemoresistance, inflammation, metastasis, and DNA damage, along with several other diseases. This study aimed to explore the disruption of protein machinery of F. nucleatum via inhibition of elongation factor thermo unstable (Ef-Tu) protein, through natural products. No study on Ef-Tu inhibition by natural products or in Fusobacterium spp. exists till todate. Ef-Tu is an abundant specialized drug target in bacteria that varies from human Ef-Tu. Elfamycins target Ef-Tu and hence, Enacyloxin IIa was used to generate pharmacophore for virtual screening of three natural product libraries, Natural Product Activity and Species Source (NPASS) (n = 30000 molecules), Tibetan medicinal plant database (n = 54 molecules) and African medicinal plant database (n > 6000 molecules). Peptaibol Septocylindrin B (NPC141050), Hirtusneanoside, and ZINC95486259 were prioritized from these libraries as potential therapeutic candidates. ADMET profiling was done for safety assessment, physiological-based pharmacokinetic modeling in human and mouse for getting insight into drug interaction with body tissues and molecular dynamics was used to assess stability of the best hit NPC141050 (Septocylindrin B). Based on the promising results, we propose further in vitro, in vivo and pharmacokinetic testing on the lead Septocylindrin B, for possible translation into therapeutic interventions.
Collapse
Affiliation(s)
- Ahmad Alzamami
- Clinical Laboratory Science Department, College of Applied Medical Sciences, Shaqra University, 11961, Al-Quwayiyah, Saudi Arabia
| | - Norah A Alturki
- Clinical Laboratory Science Department, College of Applied Medical Sciences, King Saud University, 11433, Riyadh, Saudi Arabia
| | - Kanwal Khan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Zarrin Basharat
- Alpha Genomics (Private) Limited, Islamabad, 45710, Pakistan.
| | - Mutaib M Mashraqi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Najran University, 61441, Najran, Saudi Arabia.
| |
Collapse
|
9
|
Mahdi I, Imbimbo P, Annaz H, Bakrim WB, Sahri N, Alaoui A, Monti DM, Sobeh M. Profiling of Petroselinum sativum (mill.) fuss phytoconstituents and assessment of their biocompatibility, antioxidant, anti-aging, wound healing, and antibacterial activities. Front Nutr 2024; 11:1338482. [PMID: 38505264 PMCID: PMC10948610 DOI: 10.3389/fnut.2024.1338482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/21/2024] [Indexed: 03/21/2024] Open
Abstract
Petroselinum sativum, known as parsley, is a fragrant herb that possesses a rich heritage of utilization in traditional medicinal practices. In this study, we annotated the phytocontents of the aqueous and ethanolic extracts of P. sativum and investigated their antioxidant, cytoprotective, antiaging, wound healing, and antibacterial activities. LC-MS/MS analysis of both extracts revealed the presence of 47 compounds belonging to diverse groups including organic acids, phenolic acids, and flavonoids. By MTT assay, the extracts were fully biocompatible on immortalized human keratinocytes (HaCaT) while they inhibited intracellular ROS formation (DCFDA assay) and prevented GSH depletion (DTNB assay) upon UVA exposure. In addition, the extracts were potent in inhibiting the in vitro activities of skin-related enzymes mainly elastase, tyrosinase, collagenase and hyaluronidase. Using the scratch assay, P. sativum aqueous extract significantly enhanced wound closure when compared to untreated HaCaT cells. Moreover, both extracts inhibited Pseudomonas aeruginosa's growth, reduced biofilm formation, and impaired the swimming and swarming motilities. Also, the aqueous extract was able to inhibit the production of bacterial pigments on plates. These findings strongly suggest the usefulness of P. sativum as a source of phytochemicals suitable for dermo-cosmeceutical applications.
Collapse
Affiliation(s)
- Ismail Mahdi
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Paola Imbimbo
- Department of Chemical Sciences, University of Napoli Federico II, Complesso Universitario Monte Sant’Angelo, Napoli, Italy
| | - Hassan Annaz
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Widad Ben Bakrim
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Nihad Sahri
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
- Physio-Chemical Laboratory of Inorganic and Organic Materials (LPCMIO), Materials Science Center (MSC), Ecole Normale Supérieure, Mohammed V University, Rabat, Morocco
| | - Asmae Alaoui
- Physio-Chemical Laboratory of Inorganic and Organic Materials (LPCMIO), Materials Science Center (MSC), Ecole Normale Supérieure, Mohammed V University, Rabat, Morocco
| | - Daria Maria Monti
- Department of Chemical Sciences, University of Napoli Federico II, Complesso Universitario Monte Sant’Angelo, Napoli, Italy
| | - Mansour Sobeh
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| |
Collapse
|
10
|
Škovranová G, Molčanová L, Jug B, Jug D, Klančnik A, Smole-Možina S, Treml J, Tušek Žnidarič M, Sychrová A. Perspectives on antimicrobial properties of Paulownia tomentosa Steud. fruit products in the control of Staphylococcus aureus infections. J Ethnopharmacol 2024; 321:117461. [PMID: 37979817 DOI: 10.1016/j.jep.2023.117461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/03/2023] [Accepted: 11/14/2023] [Indexed: 11/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Paulownia tomentosa Steud. (P. tomentosa) is a medium-sized tree traditionally used in Chinese folk medicine for the treatment of infectious diseases. It is a rich source of prenylated phenolic compounds that have been extensively studied for their promising biological activities. AIM OF THE STUDY Due to the increasing development of antibiotic resistance, our study investigated plant-derived natural products from the fruits of P. tomentosa that could control Staphylococcus aureus infections with novel targets/modes of action and reduce antimicrobial resistance. MATERIALS AND METHODS The ethanolic extract was fractionated and detected by liquid chromatography. The antistaphylococcal effects of the plant formulations were studied in detail in vitro by various biological methods, including microdilution methods for minimum inhibitory concentration (MIC), the checkerboard titration technique for synergy assay, fluorescence measurements for membrane disruption experiments, autoinducer-2-mediated bioassay for quorum sensing inhibition, and counting of colony-forming units for relative adhesion. Morphology was examined by transmission electron microscopy. RESULTS Total ethanolic extract and chloroform fraction showed MICs of 128 and 32 μg/mL, respectively. Diplacol, diplacone, and 3'-O-methyl-5'-hydroxydiplacone inhibited S. aureus growth in the range of 8-16 μg/mL. Synergistic potential was shown in combination with mupirocin and fusidic acid. The ethanolic extract and the chloroform fraction destroyed the cell membranes by 91.61% and 79.46%, respectively, while the pure compounds were less active. The ethanolic extract and the pure compounds reduced the number of adhered cells to 47.33-10.26% compared to the untreated control. All tested plant formulations, except diplacone, inhibited quorum sensing of S. aureus. Transmission electron microscopy showed deformation of S. aureus cells. CONCLUSIONS The products from the fruit of P. tomentosa showed antimicrobial properties against S. aureus alone and in combination with antibiotics. By affecting intracellular targets, geranylated flavonoids proposed novel approaches in the control of staphylococcal infections.
Collapse
Affiliation(s)
- Gabriela Škovranová
- Department of Molecular Pharmacy, Faculty of Pharmacy, Masaryk University, 612 00, Brno, Czech Republic.
| | - Lenka Molčanová
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, 612 00, Brno, Czech Republic
| | - Blaž Jug
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, 1000, Ljubljana, Slovenia
| | - Dina Jug
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, 1000, Ljubljana, Slovenia
| | - Anja Klančnik
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, 1000, Ljubljana, Slovenia
| | - Sonja Smole-Možina
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, 1000, Ljubljana, Slovenia
| | - Jakub Treml
- Department of Molecular Pharmacy, Faculty of Pharmacy, Masaryk University, 612 00, Brno, Czech Republic
| | - Magda Tušek Žnidarič
- Department of Biotechnology and System Biology, National Institute of Biology, 1000, Ljubljana, Slovenia
| | - Alice Sychrová
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, 612 00, Brno, Czech Republic.
| |
Collapse
|
11
|
Cao X, Cheng XW, Liu YY, Dai HW, Gan RY. Inhibition of pathogenic microbes in oral infectious diseases by natural products: Sources, mechanisms, and challenges. Microbiol Res 2024; 279:127548. [PMID: 38016378 DOI: 10.1016/j.micres.2023.127548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/31/2023] [Accepted: 11/10/2023] [Indexed: 11/30/2023]
Abstract
The maintenance of oral health is of utmost importance for an individual's holistic well-being and standard of living. Within the oral cavity, symbiotic microorganisms actively safeguard themselves against potential foreign diseases by upholding a multifaceted equilibrium. Nevertheless, the occurrence of an imbalance can give rise to a range of oral infectious ailments, such as dental caries, periodontitis, and oral candidiasis. Presently, clinical interventions encompass the physical elimination of pathogens and the administration of antibiotics to regulate bacterial and fungal infections. Given the limitations of various antimicrobial drugs frequently employed in dental practice, the rising incidence of oral inflammation, and the escalating bacterial resistance to antibiotics, it is imperative to explore alternative remedies that are dependable, efficacious, and affordable for the prevention and management of oral infectious ailments. There is an increasing interest in the creation of novel antimicrobial agents derived from natural sources, which possess attributes such as safety, cost-effectiveness, and minimal adverse effects. This review provides a comprehensive overview of the impact of natural products on the development and progression of oral infectious diseases. Specifically, these products exert their influences by mitigating dental biofilm formation, impeding the proliferation of oral pathogens, and hindering bacterial adhesion to tooth surfaces. The review also encompasses an examination of the various classes of natural products, their antimicrobial mechanisms, and their potential therapeutic applications and limitations in the context of oral infections. The insights garnered from this review can support the promising application of natural products as viable therapeutic options for managing oral infectious diseases.
Collapse
Affiliation(s)
- Xin Cao
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Xing-Wang Cheng
- Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Yin-Ying Liu
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A⁎STAR), 31 Biopolis Way, Singapore 138669, Singapore; Department of Food Science and Technology, Faculty of Science, National University of Singapore, 2 Science Drive 2, Singapore 117542, Singapore
| | - Hong-Wei Dai
- College of Stomatology, Chongqing Medical University, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
| | - Ren-You Gan
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A⁎STAR), 31 Biopolis Way, Singapore 138669, Singapore; Department of Food Science and Technology, Faculty of Science, National University of Singapore, 2 Science Drive 2, Singapore 117542, Singapore.
| |
Collapse
|
12
|
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] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [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.
Collapse
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
| |
Collapse
|
13
|
Alaoui A, Sahri N, Mahdi I, Fahsi N, El herradi EH, Sobeh M. Argan: Phytochemical profiling and evaluation of the antioxidant, hypoglycemic, and antibacterial properties of its fruit pulp extracts. Heliyon 2024; 10:e23612. [PMID: 38283239 PMCID: PMC10818192 DOI: 10.1016/j.heliyon.2023.e23612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 12/07/2023] [Accepted: 12/07/2023] [Indexed: 01/30/2024] Open
Abstract
Herein, we isolated three triterpenoid saponins from the methanol extract of the fruit pulp of argan. The structures of the identified compounds were determined using comprehensive NMR spectroscopy analyses (1H, 13C NMR, COSY, TOCSY, ROESY, and HSQC), combined with mass spectroscopy. Gas chromatography (GC) was utilized to determine the monosaccharide contents after the samples underwent methanolysis and their glycoside configuration was proved via their trimethylsilyl derivatives. Furthermore, the methanol extract of the fruit pulp and its n-butanol fraction were evaluated for their antioxidant properties via DPPH, ABTS, and FRAP assays, antidiabetic activity using α-amylase and α-glucosidase inhibition activities, and antibacterial properties utilizing microdilution and antibiofilm assays. Compared to the crude methanol extract, our results showed that the n-butanol fraction exhibited more potent antioxidant activity and antibacterial potential against Staphylococcus aureus, Escherichia coli, Salmonella typhi, Enterococcus faecalis, and Pseudomonas aeruginosa (MIC = 12.5-50 mg/mL); while no effect on the bacterial biofilm was observed. The methanol extract was more effective in inhibiting α-glucosidase (EC50 = 0.15 mg/mL), however, the n-butanol fraction elicited strong α-amylase inhibition (EC50 = 0.49 mg/mL). These findings suggest that the fruit pulp of argan could serve as a potential source of phytochemicals suitable for the treatment of diabetes and its related complications.
Collapse
Affiliation(s)
- Asmae Alaoui
- Physio-Chemical Laboratory of Inorganic and Organic Materials (LPCMIO), Materials Science Center (MSC), Ecole Normale Supérieure, Mohammed V University in Rabat, Rabat, Morocco
| | - Nihad Sahri
- Physio-Chemical Laboratory of Inorganic and Organic Materials (LPCMIO), Materials Science Center (MSC), Ecole Normale Supérieure, Mohammed V University in Rabat, Rabat, Morocco
- AgroBioSciences Program, College of Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - Ismail Mahdi
- AgroBioSciences Program, College of Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - Nidal Fahsi
- AgroBioSciences Program, College of Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - El hassania El herradi
- Physio-Chemical Laboratory of Inorganic and Organic Materials (LPCMIO), Materials Science Center (MSC), Ecole Normale Supérieure, Mohammed V University in Rabat, Rabat, Morocco
| | - Mansour Sobeh
- AgroBioSciences Program, College of Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| |
Collapse
|
14
|
Ngokwe ZB, Wolfoviz-Zilberman A, Sharon E, Zabrovsky A, Beyth N, Houri-Haddad Y, Kesler-Shvero D. Trans-Cinnamaldehyde-Fighting Streptococcus mutans Using Nature. Pharmaceutics 2024; 16:113. [PMID: 38258123 PMCID: PMC10818508 DOI: 10.3390/pharmaceutics16010113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/19/2023] [Accepted: 11/23/2023] [Indexed: 01/24/2024] Open
Abstract
Streptococcus mutans (S. mutans) is the main cariogenic bacterium with acidophilic properties, in part due to its acid-producing and -resistant properties. As a result of this activity, hard tooth structures may demineralize and form caries. Trans-cinnamaldehyde (TC) is a phytochemical from the cinnamon plant that has established antibacterial properties for Gram-positive and -negative bacteria. This research sought to assess the antibacterial and antibiofilm effects of trans-cinnamaldehyde on S. mutans. TC was diluted to a concentration range of 156.25-5000 μg/mL in dimethyl sulfoxide (DMSO) 0.03-1%, an organic solvent. Antibacterial activity was monitored by testing the range of TC concentrations on 24 h planktonic growth compared with untreated S. mutans. The subminimal bactericidal concentrations (MBCs) were used to evaluate the bacterial distribution and morphology in the biofilms. Our in vitro data established a TC MBC of 2500 μg/mL against planktonic S. mutans using a microplate spectrophotometer. Furthermore, the DMSO-only controls showed no antibacterial effect against planktonic S. mutans. Next, the sub-MBC doses exhibited antibiofilm action at TC doses of ≥625 μg/mL on hydroxyapatite discs, as demonstrated through biofilm analysis using spinning-disk confocal microscopy (SDCM) and high-resolution scanning electron microscopy (HR-SEM). Our findings show that TC possesses potent antibacterial and antibiofilm properties against S. mutans. Our data insinuate that the most effective sub-MBC of TC to bestow these activities is 625 μg/mL.
Collapse
Affiliation(s)
- Zilefac Brian Ngokwe
- Department of Prosthodontics, Hadassah Medical Center, Faculty of Dental Medicine, Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (Z.B.N.); (A.W.-Z.); (E.S.); (A.Z.); (N.B.); (Y.H.-H.)
- The Institute of Dental Sciences, Faculty of Dental Medicine, Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Amit Wolfoviz-Zilberman
- Department of Prosthodontics, Hadassah Medical Center, Faculty of Dental Medicine, Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (Z.B.N.); (A.W.-Z.); (E.S.); (A.Z.); (N.B.); (Y.H.-H.)
| | - Esi Sharon
- Department of Prosthodontics, Hadassah Medical Center, Faculty of Dental Medicine, Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (Z.B.N.); (A.W.-Z.); (E.S.); (A.Z.); (N.B.); (Y.H.-H.)
| | - Asher Zabrovsky
- Department of Prosthodontics, Hadassah Medical Center, Faculty of Dental Medicine, Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (Z.B.N.); (A.W.-Z.); (E.S.); (A.Z.); (N.B.); (Y.H.-H.)
| | - Nurit Beyth
- Department of Prosthodontics, Hadassah Medical Center, Faculty of Dental Medicine, Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (Z.B.N.); (A.W.-Z.); (E.S.); (A.Z.); (N.B.); (Y.H.-H.)
| | - Yael Houri-Haddad
- Department of Prosthodontics, Hadassah Medical Center, Faculty of Dental Medicine, Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (Z.B.N.); (A.W.-Z.); (E.S.); (A.Z.); (N.B.); (Y.H.-H.)
| | - Dana Kesler-Shvero
- Department of Prosthodontics, Hadassah Medical Center, Faculty of Dental Medicine, Hebrew University of Jerusalem, Jerusalem 9112001, Israel; (Z.B.N.); (A.W.-Z.); (E.S.); (A.Z.); (N.B.); (Y.H.-H.)
| |
Collapse
|
15
|
Ramírez-Trinidad Á, Martínez-Solano E, Tovar-Roman CE, García-Guerrero M, Rivera-Chávez JA, Hernández-Vázquez E. Synthesis, antibiofilm activity and molecular docking of N-acylhomoserine lactones containing cinammic moieties. Bioorg Med Chem Lett 2024; 98:129592. [PMID: 38101651 DOI: 10.1016/j.bmcl.2023.129592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/03/2023] [Accepted: 12/10/2023] [Indexed: 12/17/2023]
Abstract
We prepared a series of cinnamoyl-containing furanones by an affordable and short synthesis. The nineteen compounds hold a variety of substituents including electron-donating, electron-withdrawing, bulky and meta-substituted phenyls, as well as heterocyclic rings. Compounds showed antibiofilm activity in S. aureus, K. pneumoniae and, more pronounced, against P. aeruginosa. The disruption of quorum sensing (QS) was tested using the violacein test and molecular docking predicted the antagonism of LasR as a plausible mechanism of action. The trimethoxylated and diene derivatives showed the best antibiofilm and anti-QS properties, thus becoming candidates for further modifications.
Collapse
Affiliation(s)
- Ángel Ramírez-Trinidad
- Department of Organic Chemistry, Chemistry Institute, UNAM. Circuito exterior S.N., Ciudad Universitaria, Coyoacán, México, DF 04510, Mexico
| | - Ernesto Martínez-Solano
- Department of Organic Chemistry, Chemistry Institute, UNAM. Circuito exterior S.N., Ciudad Universitaria, Coyoacán, México, DF 04510, Mexico
| | - César E Tovar-Roman
- Department of Organic Chemistry, Chemistry Institute, UNAM. Circuito exterior S.N., Ciudad Universitaria, Coyoacán, México, DF 04510, Mexico
| | - Mariana García-Guerrero
- Department of Natural Products, Chemistry Institute, UNAM. Circuito exterior S.N., Ciudad Universitaria, Coyoacán, México, DF 04510, Mexico
| | - José A Rivera-Chávez
- Department of Natural Products, Chemistry Institute, UNAM. Circuito exterior S.N., Ciudad Universitaria, Coyoacán, México, DF 04510, Mexico
| | - Eduardo Hernández-Vázquez
- Department of Organic Chemistry, Chemistry Institute, UNAM. Circuito exterior S.N., Ciudad Universitaria, Coyoacán, México, DF 04510, Mexico.
| |
Collapse
|
16
|
Liu T, Wang ZJ, Shi YZ, Tao R, Huang H, Zhao YL, Luo XD. Curcusinol from the fruit of Carex baccans with antibacterial activity against multidrug-resistant strains. J Ethnopharmacol 2024; 318:116892. [PMID: 37460030 DOI: 10.1016/j.jep.2023.116892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/25/2023] [Accepted: 07/07/2023] [Indexed: 07/23/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Carex baccans, known as Shan-Bai-Zi or Ye-Gao-Liang in China, is a traditional medicinal herb used by several ethnic groups in Yunnan Province. It is utilized for the treatment of wound infections, ulcers, and dysentery. However, there is currently a dearth of research reports on its antimicrobial potential. AIM OF THE STUDY The substance basis of the antimicrobial activity of C. baccans will be unveiled, and the in vitro and in vivo antibacterial activities against multidrug-resistant bacteria of its major active compounds, as well as their preliminary mechanisms of action, will be investigated. MATERIALS AND METHODS An antibacterial bioactivity-guided isolation method was used to isolate and identify the active compound curcusinol from C. baccans. UPLC-DAD-MS was employed for the quantitative analysis of curcusinol. The antibacterial activity, resistance profile, synergistic effects, anti-biofilm activity, and potential mechanisms of action of curcusinol against methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus (VRE), and other multidrug-resistant bacteria (Escherichia coli, Pseudomonas aeruginosa, Acinetobacter baumannii) were investigated using various methods, including the broth microdilution method, scanning electron microscopy, time kill assay, multi-generational resistance induction assay, checkerboard synergy assay, anti-biofilm assay, and metabolomics. Furthermore, the therapeutic efficacy of curcusinol was assessed in vivo by establishing an animal skin wound infection model of MRSA. RESULTS Curcusinol was isolated from the fruit of C. baccans, which accounts for 3.1% of the dry weight of the fruit. Curcusinol exhibited significant bactericidal and anti-biofilm activities against antibiotic-resistant Gram-positive bacteria in vitro. Furthermore, curcusinol acted as an antibiotic adjuvant to enhance the activity of various commonly used antibiotics against both Gram-positive and Gram-negative antibiotic-resistant bacteria without cytotoxicity to mammalian cells (A549 and RAW264.7) at 64 μM. Moreover, curcusinol affected arginine biosynthesis, cysteine and methionine metabolism, and alanine, aspartate, and glutamate metabolism significantly in MRSA cells under stress. Additionally, curcusinol effectively treated MRSA-infected mouse skin wounds and accelerated wound healing in vivo. CONCLUSIONS The results of this study not only support the traditional uses of C. baccans but also demonstrate that its major active compound, curcusinol, is an effective plant-derived bactericidal agent and antibacterial adjuvant with potential applications in the treatment of skin infections.
Collapse
Affiliation(s)
- Tie Liu
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
| | - Zhao-Jie Wang
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
| | - Yang-Zhu Shi
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
| | - Ran Tao
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
| | - Huan Huang
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
| | - Yun-Li Zhao
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
| | - Xiao-Dong Luo
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
| |
Collapse
|
17
|
Mahdi I, Imbimbo P, Ortaakarsu AB, Adhiambo Ochieng M, Ben Bakrim W, Drissi BE, Ibrahim MA, Abdelfattah MAO, Mahmoud MF, Monti DM, Sobeh M. Chemical profiling and dermatological and anti-aging properties of Syzygium jambos L. (Alston): evidence from molecular docking, molecular dynamics, and in vitro experiments. Front Mol Biosci 2024; 10:1331059. [PMID: 38250734 PMCID: PMC10797028 DOI: 10.3389/fmolb.2023.1331059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/11/2023] [Indexed: 01/23/2024] Open
Abstract
The phytoconstituents of the aqueous extract from Syzygium jambos L. (Alston) leaves were defined using HPLC-PDA-MS/MS and the antioxidant, anti-aging, antibacterial, and anti-biofilm activities of the extract were in silico and in vitro investigated. The antioxidant activities were performed using in vitro DPPH and FRAP assays as well as H2-DCFDA assay in HaCaT cells in which oxidative stress was induced by UVA radiation. Anti-aging activity was tested in vitro, using aging-related enzymes. The antibacterial, anti-biofilm and inhibitory effects on bacterial mobilities (swarming and swimming) were assessed against Pseudomonas aeruginosa. Results showed that S. jambos aqueous extract contained 28 phytochemicals belonging to different metabolite classes, mainly phenolic acids, gallic acid derivatives, flavonoids, and ellagitannins. Mineral content analysis showed that S. jambos leaves contained moderate amounts of nitrogen, potassium, manganese, magnesium, and zinc, relatively low amounts of phosphorus and copper, and high concentration of calcium and iron. The extract displayed strong antioxidant activities in vitro and inhibited UVA-induced oxidative stress in HaCaT cells. Docking the major compounds identified in the extract into the four main protein targets involved in skin aging revealed an appreciable inhibitory potential of these compounds against tyrosinase, elastase, hyaluronidase, and collagenase enzymes. Moreover, molecular dynamic simulations were adopted to confirm the binding affinity of some selected compounds towards the target enzymes. The extract exhibited pronounced in vitro anti-aging effects, compared to kojic acid and quercetin (the reference compounds). It also inhibited the growth of P. aeruginosa, counteracted its ability to form biofilm, and impeded its swarming and swimming mobilities. Altogether, these findings strongly propose S. jambos leaves as a promising source of bioactive metabolites for the development of natural cosmeceutical and dermatological agents.
Collapse
Affiliation(s)
- Ismail Mahdi
- AgroBioSciences Program, College of Agriculture and Environmental Science, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Paola Imbimbo
- Department of Chemical Sciences, University of Napoli Federico II, Complesso Universitario Monte Sant’Angelo, Napoli, Italy
| | | | - Melvin Adhiambo Ochieng
- AgroBioSciences Program, College of Agriculture and Environmental Science, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Widad Ben Bakrim
- AgroBioSciences Program, College of Agriculture and Environmental Science, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Badr Eddine Drissi
- AgroBioSciences Program, College of Agriculture and Environmental Science, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | | | | | - Mona F. Mahmoud
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Daria Maria Monti
- Department of Chemical Sciences, University of Napoli Federico II, Complesso Universitario Monte Sant’Angelo, Napoli, Italy
| | - Mansour Sobeh
- AgroBioSciences Program, College of Agriculture and Environmental Science, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| |
Collapse
|
18
|
Ghosh S, Sett U, Pal A, Nandy S, Nandi S, Chakrabarty S, Das A, Bandopadhyay P, Basu T. Antibiofilm potential of nanonized eugenol against Pseudomonas aeruginosa. J Appl Microbiol 2024; 135:lxad305. [PMID: 38093454 DOI: 10.1093/jambio/lxad305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 12/03/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024]
Abstract
AIMS The purpose of this study was to synthesize a nanoform of eugenol (an important phytochemical with various pharmacological potentials) and to investigate its antibiofilm efficacy on Pseudomonas aeruginosa biofilm. METHODS AND RESULTS Colloidal suspension of eugenol-nanoparticles (ENPs) was synthesized by the simple ultrasonic cavitation method through the emulsification of hydrophobic eugenol into hydrophilic gelatin. Thus, the nanonization process made water-insoluble eugenol into water-soluble nano-eugenol, making the nanoform bioavailable. The size of the ENPs was 20-30 nm, entrapment efficiency of eugenol within gelatin was 80%, and release of eugenol from the gelatin cap was slow and sustained over 5 days. Concerning the clinically relevant pathogen P. aeruginosa, ENPs had higher antibiofilm (for both formation and eradication) activities than free eugenol. Minimal biofilm inhibitory concentration and minimal biofilm eradication concentration of ENP on P. aeruginosa biofilm were 2.0 and 4.0 mM, respectively. In addition, the measurement of P. aeruginosa biofilm biomass, biofilm thickness, amount of biofilm extra-polymeric substance, cell surface hydrophobicity, cell swarming and twitching efficiencies, cellular morphology, and biofilm formation in catheter demonstrated that the antibiofilm efficacy of nano-eugenol was 30%-40% higher than that of bulk eugenol. CONCLUSION These results signify that future pharmacological and clinical studies are very much required to investigate whether ENPs can act as an effective drug against P. aeruginosa biofilm-mediated diseases. Thus, the problem of intrinsic antibiotic tolerance of biofilm-forming cells may be minimized by ENPs. Moreover, ENP may be used as a potential catheter-coating agent to inhibit pseudomonal colonization on catheter surfaces and, therefore, to reduce catheter-associated infections and complications.
Collapse
Affiliation(s)
- Sourav Ghosh
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Upasana Sett
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Anabadya Pal
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Sanchita Nandy
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Susmita Nandi
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Soumajit Chakrabarty
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Abhijit Das
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Pathikrit Bandopadhyay
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Tarakdas Basu
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| |
Collapse
|
19
|
Joy A, Seethi V F, Cyriac MC, Habeeb J, Sudhakaran S, Shah S. Modelling of AgrA inhibitors to combat anti-microbial resistance in Staphylococcus aureus. J Biomol Struct Dyn 2024; 42:551-558. [PMID: 37166373 DOI: 10.1080/07391102.2023.2203260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 03/15/2023] [Indexed: 05/12/2023]
Abstract
Staphylococcus aureus is a Gram-positive bacterium found on human skin that causes skin and soft tissue infections, as well as pneumonia, osteomyelitis, and endocarditis. The prevalence of antibiotic resistant strains has made the treatments less effective. An efficient alternate method for battling these contagious diseases is anti-virulence strategy. The AgrA protein, a key activator of Accessory Gene Regulator system in S. aureus, is vital to the virulence of the organism and, consequently, its pathogenesis. Using a Machine Learning algorithm, the Support Vector Machine (SVM), and a ligand-based pharmacophore modelling method, prediction models of AgrA inhibitors were developed. The metrics of the SVM model were inadequate, hence it was not used for virtual screening. For ligand-based pharmacophore modelling, 14 of 29 compounds were removed from the active set due to a lack of shared pharmacophore properties, and 504 compounds were designated as decoys. A 3D pharmacophore model was created using LigandScout 4.4.5, with a fit score of 57.48, including a positive ionizable group, one hydrogen bond donor, and three hydrogen bond acceptors. The model after further validation was used to virtually screen an external database which resulted in six hits. These compounds were docked with the AgrA domain crystal structure to determine the inhibitor activity. Further, each docked complex was subjected to a 100 ns molecular dynamics simulation. CID238 and CID20510252 demonstrated potent inhibitory binding interactions and hence can be used to develop AgrA inhibitors in future after proper validation.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Amitha Joy
- Department of Biotechnology, Sahrdaya College of Engineering and Technology, Thrissur, Kerala, India
| | | | - Marria C Cyriac
- Department of Biotechnology, Sahrdaya College of Engineering and Technology, Thrissur, Kerala, India
| | - Jasmin Habeeb
- Division of Crop Improvement, ICAR-Central Plantation Crops Research Institute, Kasaragod, Kerala, India
| | | | - Shaheen Shah
- Genomics Central [MaGenomics], Thrissur, Kerala, India
| |
Collapse
|
20
|
Bose S, Sarkar N, Jo Y. Natural medicine delivery from 3D printed bone substitutes. J Control Release 2024; 365:848-875. [PMID: 37734674 DOI: 10.1016/j.jconrel.2023.09.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 09/11/2023] [Accepted: 09/14/2023] [Indexed: 09/23/2023]
Abstract
Unmet medical needs in treating critical-size bone defects have led to the development of numerous innovative bone tissue engineering implants. Although additive manufacturing allows flexible patient-specific treatments by modifying topological properties with various materials, the development of ideal bone implants that aid new tissue regeneration and reduce post-implantation bone disorders has been limited. Natural biomolecules are gaining the attention of the health industry due to their excellent safety profiles, providing equivalent or superior performances when compared to more expensive growth factors and synthetic drugs. Supplementing additive manufacturing with natural biomolecules enables the design of novel multifunctional bone implants that provide controlled biochemical delivery for bone tissue engineering applications. Controlled release of naturally derived biomolecules from a three-dimensional (3D) printed implant may improve implant-host tissue integration, new bone formation, bone healing, and blood vessel growth. The present review introduces us to the current progress and limitations of 3D printed bone implants with drug delivery capabilities, followed by an in-depth discussion on cutting-edge technologies for incorporating natural medicinal compounds embedded within the 3D printed scaffolds or on implant surfaces, highlighting their applications in several pre- and post-implantation bone-related disorders.
Collapse
Affiliation(s)
- Susmita Bose
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, United States.
| | - Naboneeta Sarkar
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, United States
| | - Yongdeok Jo
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, United States
| |
Collapse
|
21
|
Khataybeh B, Jaradat Z, Ababneh Q. Anti-bacterial, anti-biofilm and anti-quorum sensing activities of honey: A review. J Ethnopharmacol 2023; 317:116830. [PMID: 37400003 DOI: 10.1016/j.jep.2023.116830] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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.
Collapse
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
| |
Collapse
|
22
|
Nesterovich VM, Belykh DA, Gorokhovets NV, Kurbatov LK, Zamyatnin AA, Ikryannikova LN. Secondary metabolites of plants and their possible role in the "age of superbugs". Biomed Khim 2023; 69:371-382. [PMID: 38153052 DOI: 10.18097/pbmc20236906371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Bacterial infections are a serious cause of high morbidity and mortality worldwide. Over the past decades, the drug resistance of bacterial pathogens has been steadily increasing, while the rate of development of new effective antibacterial drugs remains consistently low. The plant kingdom is sometimes called a bottomless well for the search for new antimicrobial therapies. This is due to the fact that plants are easily accessible and cheap to process, while extracts and components of plant origin often demonstrate a high level of biological activity with minor side effects. The variety of compounds obtained from plant raw materials can provide a wide choice of various chemical structures for interaction with various targets inside bacterial cells, while the rapid development of modern biotechnological tools opens the way to the targeted production of bioactive components with desired properties. The objective of this review is to answer the question, whether antimicrobials of plant origin have a chance to play the role of a panacea in the fight against infectious diseases in the "post-antibiotic era".
Collapse
Affiliation(s)
| | | | | | | | - A A Zamyatnin
- Sechenov University, Moscow, Russia; Lomonosov Moscow State University, Moscow, Russia
| | | |
Collapse
|
23
|
Monteiro EDS, da Silva FS, Gomes KO, do Prado BA, dos Santos RD, Gomes da Camara CA, de Moraes MM, da Silva ICR, de Macêdo VT, Gelfuso GM, de Sá Barreto LCL, Orsi DC. Characterization and Determination of the Antibacterial Activity of Baccharis dracunculifolia Essential-Oil Nanoemulsions. Antibiotics (Basel) 2023; 12:1677. [PMID: 38136711 PMCID: PMC10740613 DOI: 10.3390/antibiotics12121677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/19/2023] [Accepted: 11/22/2023] [Indexed: 12/24/2023] Open
Abstract
The aim of this study was to evaluate the antibacterial activity of nanoemulsions of Baccharis dracunculifolia essential oil. The volatile compounds of the essential oil were identified using gas chromatography-mass spectrometry. The properties of the nanoemulsions (droplet size, polydispersity index, pH, and electrical conductivity) were determined. The antibacterial activities of the essential oil and its nanoemulsions were evaluated using MIC, MBC, and disk diffusion. The microorganisms used were: Gram-positive bacteria (Staphylococcus aureus ATCC 25923, Bacillus cereus ATCC 14579, Streptococcus mutans ATCC 25175, and Enterococcus faecalis ATCC 29212) and Gram-negative bacteria (Pseudomonas aeruginosa ATCC 27853, Klebsiella pneumoniae ATCC BAA-1706, Salmonella enterica ATCC 14028, and Escherichia coli ATCC 25922). The major volatile compounds of the B. dracunculifolia essential oil were limonene (19.36%), (E)-nerolidol (12.75%), bicyclogermacrene (10.76%), and β-pinene (9.60%). The nanoemulsions had a mean droplet size between 13.14 and 56.84 nm. The nanoemulsions presented lower and statistically significant MIC values compared to the essential oil, indicating enhancement of the bacteriostatic action. The disk diffusion method showed that both the nanoemulsions and the essential oil presented inhibition zones only for Gram-positive bacteria, while there were no results against Gram-negative bacteria, indicating that B. dracunculifolia essential oil has a better antimicrobial effect on Gram-positive microorganisms.
Collapse
Affiliation(s)
- Erika da Silva Monteiro
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Franklyn Santos da Silva
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Karolina Oliveira Gomes
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Bruno Alcântara do Prado
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Rebeca Dias dos Santos
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | | | - Marcilio Martins de Moraes
- Department of Chemistry, Federal Rural University of Pernambuco, Recife 52171-900, PE, Brazil; (C.A.G.d.C.); (M.M.d.M.)
| | - Izabel Cristina Rodrigues da Silva
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Vinicius Teixeira de Macêdo
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Guilherme Martins Gelfuso
- Laboratory of Food, Drugs, and Cosmetics, University of Brasília, Brasília 70910-900, DF, Brazil; (G.M.G.); (L.C.L.d.S.B.)
| | | | - Daniela Castilho Orsi
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| |
Collapse
|
24
|
Xie JQ, Zhou X, Jia ZC, Su CF, Zhang Y, Fernie AR, Zhang J, Du ZY, Chen MX. Alternative Splicing, An Overlooked Defense Frontier of Plants with Respect to Bacterial Infection. J Agric Food Chem 2023. [PMID: 37916838 DOI: 10.1021/acs.jafc.3c04163] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Disease represents a major problem in sustainable agricultural development. Plants interact closely with various microorganisms during their development and in response to the prevailing environment. In particular, pathogenic microorganisms can cause plant diseases, affecting the fertility, yield, and longevity of plants. During the long coevolution of plants and their pathogens, plants have evolved both molecular pattern-triggered immunity (PTI) and effector-triggered immunity (ETI) signaling networks in order to regulate host cells in response to pathogen infestation. Additionally, in the postgenomic era, alternative splicing (AS) has become uncovered as one of the major drivers of proteome diversity, and abnormal RNA splicing is closely associated with bacterial infections. Currently, the complexity of host-bacteria interactions is a much studied area of research that has shown steady progress over the past decade. Although the development of high-throughput sequencing technologies and their application in transcriptomes have revolutionized our understanding of AS, many mechanisms related to host-bacteria interactions remain still unclear. To this end, this review summarizes the changes observed in AS during host-bacteria interactions and outlines potential therapeutics for bacterial diseases based on existing studies. In doing so, we hope to provide guidelines for plant disease management in agriculture.
Collapse
Affiliation(s)
- Ji-Qin Xie
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, Guizhou 550025, China
| | - Xiang Zhou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Zi-Chang Jia
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Chang-Feng Su
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, Guizhou 550025, China
| | - Youjun Zhang
- Center of Plant System Biology and Biotechnology, 4000 Plovdiv, Bulgaria
- Max-Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam, Golm, Germany
| | - Alisdair R Fernie
- Center of Plant System Biology and Biotechnology, 4000 Plovdiv, Bulgaria
- Max-Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam, Golm, Germany
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University, and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Zhi-Yan Du
- Department of Molecular Biosciences & Bioengineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
| | - Mo-Xian Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| |
Collapse
|
25
|
Carmona-Orozco ML, Quiñones W, Robledo SM, Torres F, Echeverri F. Reversing the biofilm-inducing effect of two xanthones from Garcinia mangostana by 3-methyl-2(5H)-furanone and N-butyryl-D-L homoserine lactone. Phytomedicine 2023; 120:155069. [PMID: 37722186 DOI: 10.1016/j.phymed.2023.155069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/26/2023] [Accepted: 09/04/2023] [Indexed: 09/20/2023]
Abstract
BACKGROUND According to the WHO, 12 bacteria cause numerous human infections, including Enterobacteriaceae Klebsiella pneumoniae, and thus represent a public health problem. Microbial resistance is associated with biofilm formation; therefore, it is critical to know the biofilm-inducing potential of various compounds of everyday life. Likewise, the reversibility of biofilms and the modulation of persister cells are important for controlling microbial pathogens. In this work, we investigated the biofilm-inducing effects of xanthones from Garcinia mangostana on Klebsiella pneumoniae. Furthermore, we investigated the reversal effect of 3-methyl-2(5H)-furanone and the formation of persister cells induced by xanthones and their role in modulating the biofilm to the antibiotic gentamicin. METHODS To analyze the biofilm-inducing role of xanthones from Garcinia mangostana, cultures of K. pneumoniae containing duodenal probe pieces were treated with 0.1-0.001 μM α- and γ-mangostin, and the biofilm levels were measured using spectrophotometry. To determine biofilm reversion, cultures treated with xanthones, or gentamicin were mixed with 3-methyl-2(5H)-furanone or N-butyryl-DL-homoserine lactone. The presence of K. pneumoniae persister cells was determined by applying the compounds to the mature biofilm, and the number of colony-forming units was counted. RESULTS The xanthones α- and γ-mangostin increased K. pneumoniae biofilm production by 40% with duodenal probes. However, 3-methyl-2(5H)-furanone at 0.001 μΜ reversed biofilm formation by up to 60%. Moreover, adding the same to a culture treated with gentamicin reduced the biofilm by 80.5%. This effect was highlighted when 3-methyl-2(5H)-furanone was administered 6 h later than xanthones. At high concentrations of α-mangostin, persister K. pneumoniae cells in the biofilm were about 5 - 10 times more abundant than cells, whereas, with γ-mangostin, they were about 100 times more. CONCLUSION Two xanthones, α- and γ-mangostin from G. mangostana, induced biofilm formation in K. pneumoniae and promoted persister cells. However, the biofilm formation was reversed by adding 3-methyl-2(5H)-furanone, and even this effect was achieved with gentamicin. In addition, this compound controlled the persister K. pneumoniae cells promoted by α-mangostin. Thus, synthetic, and natural biofilm-inducing compounds could harm human health. Therefore, avoiding these substances and looking for biofilm inhibitors would be a strategy to overcome microbial resistance and recover antibiotics that are no longer used.
Collapse
Affiliation(s)
- Maria L Carmona-Orozco
- Química Orgánica de Productos Naturales, Instituto de Química, Universidad de Antioquia, Medellín, Colombia
| | - Wiston Quiñones
- Química Orgánica de Productos Naturales, Instituto de Química, Universidad de Antioquia, Medellín, Colombia
| | - Sara M Robledo
- PECET-Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Fernando Torres
- Química Orgánica de Productos Naturales, Instituto de Química, Universidad de Antioquia, Medellín, Colombia
| | - Fernando Echeverri
- Química Orgánica de Productos Naturales, Instituto de Química, Universidad de Antioquia, Medellín, Colombia.
| |
Collapse
|
26
|
de Jesus GS, Silva Trentin D, Barros TF, Ferreira AMT, de Barros BC, de Oliveira Figueiredo P, Garcez FR, Dos Santos ÉL, Micheletti AC, Yoshida NC. Medicinal plant Miconia albicans synergizes with ampicillin and ciprofloxacin against multi-drug resistant Acinetobacter baumannii and Staphylococcus aureus. BMC Complement Med Ther 2023; 23:374. [PMID: 37872494 PMCID: PMC10594757 DOI: 10.1186/s12906-023-04147-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/31/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND Given the rising occurrence of antibiotic resistance due to the existence and ongoing development of resistant bacteria and phenotypes, the identification of new treatments and sources of antimicrobial agents is of utmost urgency. An important strategy for tackling bacterial resistance involves the utilization of drug combinations, and natural products derived from plants hold significant potential as a rich source of bioactive compounds that can act as effective adjuvants. This study, therefore, aimed to assess the antibacterial potential and the chemical composition of Miconia albicans, a Brazilian medicinal plant used to treat various diseases. METHODS Ethanolic extracts from leaves and stems of M. albicans were obtained and subsequently partitioned to give the corresponding hexane, chloroform, ethyl acetate, and hydromethanolic phases. All extracts and phases had their chemical constitution investigated by HPLC-DAD-MS/MS and GC-MS and were assessed for their antibiofilm and antimicrobial efficacy against Staphylococcus aureus. Furthermore, their individual effects and synergistic potential in combination with antibiotics were examined against clinical strains of both S. aureus and Acinetobacter baumannii. In addition, 10 isolated compounds were obtained from the leaves phases and used for confirmation of the chemical profiles and for antibacterial assays. RESULTS Based on the chemical profile analysis, 32 compounds were successfully or tentatively identified, including gallic and ellagic acid derivatives, flavonol glycosides, triterpenes and pheophorbides. Extracts and phases obtained from the medicinal plant M. albicans demonstrated synergistic effects when combined with the commercial antibiotics ampicillin and ciprofloxacin, against multi-drug resistant bacteria S. aureus and A. baumannii, restoring their antibacterial efficacy. Extracts and phases also exhibited antibiofilm property against S. aureus. Three key compounds commonly found in the samples, namely gallic acid, quercitrin, and corosolic acid, did not exhibit significant antibacterial activity when assessed individually or in combination with antibiotics against clinical bacterial strains. CONCLUSIONS Our findings reveal that M. albicans exhibits remarkable adjuvant potential for enhancing the effectiveness of antimicrobial drugs against resistant bacteria.
Collapse
Affiliation(s)
- Genilson Silva de Jesus
- Laboratório de Produtos Naturais Bioativos-PRONABio, Instituto de Química, Universidade Federal de Mato Grosso Do Sul, Campo Grande, Brazil
| | - Danielle Silva Trentin
- Laboratório de Bacteriologia & Modelos Experimentais Alternativos (BACMEA), Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Thayná Fernandes Barros
- Laboratório de Bacteriologia & Modelos Experimentais Alternativos (BACMEA), Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | | | - Bruna Castro de Barros
- Instituto de Biociências, Universidade Federal de Mato Grosso Do Sul, Campo Grande, Brazil
| | - Patrícia de Oliveira Figueiredo
- Laboratório de Produtos Naturais Bioativos-PRONABio, Instituto de Química, Universidade Federal de Mato Grosso Do Sul, Campo Grande, Brazil
| | - Fernanda Rodrigues Garcez
- Laboratório de Produtos Naturais Bioativos-PRONABio, Instituto de Química, Universidade Federal de Mato Grosso Do Sul, Campo Grande, Brazil
| | - Érica Luiz Dos Santos
- Laboratório de Produtos Naturais Bioativos-PRONABio, Instituto de Química, Universidade Federal de Mato Grosso Do Sul, Campo Grande, Brazil
| | - Ana Camila Micheletti
- Laboratório de Produtos Naturais Bioativos-PRONABio, Instituto de Química, Universidade Federal de Mato Grosso Do Sul, Campo Grande, Brazil.
| | - Nidia Cristiane Yoshida
- Laboratório de Produtos Naturais Bioativos-PRONABio, Instituto de Química, Universidade Federal de Mato Grosso Do Sul, Campo Grande, Brazil.
| |
Collapse
|
27
|
Huang R, Zhang H, Chen H, He L, Liu X, Zhang Z. The determination of the biological function of bacterial pink pigment and Fusarium chlamydosporum on alfalfa ( Medicago sativa L.). Front Microbiol 2023; 14:1285961. [PMID: 37928657 PMCID: PMC10620923 DOI: 10.3389/fmicb.2023.1285961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 09/22/2023] [Indexed: 11/07/2023] Open
Abstract
Bacterial pigment is one of the secondary metabolites produced by bacteria and has functions that are yet to be understood in relation to soil-borne pathogenic fungi and plants in mutualistic processes. The study evaluates the growth, photosynthetic, and physiological characteristics of alfalfa after interacting with different concentrations of Cp2 pink pigment and Fusarium chlamydosporum. The findings showed that Cp2 pink pigment has the ability to inhibit the growth of alfalfa, with the inhibition ratio gradually increasing with rising concentration. F. chlamydosporum inhibited the growth of alfalfa, which reduced the photosynthetic physiological response and elevated antioxidant enzymes, which are typically manifested by yellowing leaves and shortened roots. Under the combined effect of Cp2 pink pigment and F. chlamydosporum, increasing concentrations of Cp2 pink pigment intensified the symptoms in alfalfa and led to more pronounced growth and physiological response. This indicates that the Cp2 pink pigment is one of the potential virulence factors secreted by the Erwinia persicina strain Cp2, which plays an inhibitory role in the interactions between F. chlamydosporum and alfalfa, and also has the potential to be developed into a plant immunomodulator agent.
Collapse
Affiliation(s)
| | | | | | | | | | - Zhenfen Zhang
- Key Laboratory of Grassland Ecosystem, Ministry of Education, Sino-U.S. Centers for Grazing Land Ecosystem Sustainability, Ministry of Science and Technology, Pratacultural College, Gansu Agricultural University, Lanzhou, China
| |
Collapse
|
28
|
Virzì NF, Fallica AN, Romeo G, Greish K, Alghamdi MA, Patanè S, Mazzaglia A, Shahid M, Pittalà V. Curcumin I-SMA nanomicelles as promising therapeutic tool to tackle bacterial infections. RSC Adv 2023; 13:31059-31066. [PMID: 37881762 PMCID: PMC10594152 DOI: 10.1039/d3ra04885c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/16/2023] [Indexed: 10/27/2023] Open
Abstract
Renewed interest towards natural substances has been pushed by the widespread diffusion of antibiotic resistance. Curcumin I is the most active and effective constituent of curcuminoids extracted from Curcuma longa and, among other beneficial effects, attracted attention for its antimicrobial potential. Since the poor pharmacokinetic profile hinders its efficient utilization, in the present paper, we report encapsulation of curcumin I in poly(styrene-co-maleic acid) (SMA-CUR) providing a nanomicellar system with improved aqueous solubility and bioavailability. SMA-CUR was characterized by means of size, zeta potential, polydispersity index, atomic force microscopy (AFM), drug release studies, spectroscopic properties and stability. SMA-CUR nanoformulation displayed exciting antimicrobial properties compared to free curcumin I towards Gram-positive and Gram-negative clinical isolates.
Collapse
Affiliation(s)
- Nicola F Virzì
- Department of Drug and Health Science, University of Catania Viale A. Doria 6 95125 Catania Italy
| | - Antonino N Fallica
- Department of Drug and Health Science, University of Catania Viale A. Doria 6 95125 Catania Italy
| | - Giuseppe Romeo
- Department of Drug and Health Science, University of Catania Viale A. Doria 6 95125 Catania Italy
| | - Khaled Greish
- Department of Molecular Medicine, Arabian Gulf University Manama 329 Bahrain
| | - Maha Ali Alghamdi
- Department of Molecular Medicine, Arabian Gulf University Manama 329 Bahrain
| | - Salvatore Patanè
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina V.le F. Stagno D'Alcontres 31 98166 Messina Italy
| | - Antonino Mazzaglia
- National Council of Research, Institute for the Study of Nanostructured Materials (CNR-ISMN), URT of Messina c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina V.le F. Stagno d'Alcontres 31 98166 Messina Italy
| | - Mohammad Shahid
- Department of Microbiology & Immunology, Arabian Gulf University Manama 329 Bahrain
| | - Valeria Pittalà
- Department of Drug and Health Science, University of Catania Viale A. Doria 6 95125 Catania Italy
- Department of Molecular Medicine, Arabian Gulf University Manama 329 Bahrain
| |
Collapse
|
29
|
Sivadas N, Kaul G, Akhir A, Shukla M, Govind MG, Dan M, Radhakrishnan KV, Chopra S. Naturally Derived Malabaricone B as a Promising Bactericidal Candidate Targeting Multidrug-Resistant Staphylococcus aureus also Possess Synergistic Interactions with Clinical Antibiotics. Antibiotics (Basel) 2023; 12:1483. [PMID: 37887184 PMCID: PMC10604362 DOI: 10.3390/antibiotics12101483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/22/2023] [Accepted: 09/23/2023] [Indexed: 10/28/2023] Open
Abstract
The emergence of multidrug-resistant (MDR) superbugs underlines the urgent need for innovative treatment options to tackle resistant bacterial infections. The clinical efficacy of natural products directed our efforts towards developing new antibacterial leads from naturally abundant known chemical structures. The present study aimed to explore an unusual class of phenylacylphenols (malabaricones) from Myristicamalabarica as antibacterial agents. In vitro antibacterial activity was determined via broth microdilution, cell viability, time-kill kinetics, biofilm eradication, intracellular killing, and checkerboard assays. The efficacy was evaluated in vivo in murine neutropenic thigh and skin infection models. Confocal and SEM analyses were used for mechanistic studies. Among the tested isolates, malabaricone B (NS-7) demonstrated the best activity against S. aureus with a favorable selectivity index and concentration-dependent, rapid bactericidal killing kinetics. It displayed equal efficacy against MDR clinical isolates of S. aureus and Enterococci, efficiently clearing S. aureus in intracellular and biofilm tests, with no detectable resistance. In addition, NS-7 synergized with daptomycin and gentamicin. In vivo, NS-7 exhibited significant efficacy against S. aureus infection. Mechanistically, NS-7 damaged S. aureus membrane integrity, resulting in the release of extracellular ATP. The results indicated that NS-7 can act as a naturally derived bactericidal drug lead for anti-staphylococcal therapy.
Collapse
Affiliation(s)
- Neethu Sivadas
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, India;
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
| | - Grace Kaul
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
| | - Abdul Akhir
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
| | - Manjulika Shukla
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
| | - Murugan Govindakurup Govind
- Department of Plant Genetics Resource, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Palode, Thiruvananthapuram 695562, India
| | - Mathew Dan
- Department of Plant Genetics Resource, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Palode, Thiruvananthapuram 695562, India
| | - Kokkuvayil Vasu Radhakrishnan
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, India;
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
| | - Sidharth Chopra
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
| |
Collapse
|
30
|
Rudin L, Roth N, Kneubühler J, Dubey BN, Bornstein MM, Shyp V. Inhibitory effect of natural flavone luteolin on Streptococcus mutans biofilm formation. Microbiol Spectr 2023; 11:e0522322. [PMID: 37732737 PMCID: PMC10581090 DOI: 10.1128/spectrum.05223-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 07/24/2023] [Indexed: 09/22/2023] Open
Abstract
Streptococcus mutans is one of the key pathogens responsible for dental caries, which is known to be one of the most prevalent biofilm-associated diseases worldwide. S. mutans virulence strongly depends on its biofilm formation and enamel demineralization abilities due to the production of surface adhesins, exopolysaccharides, and acid in the presence of sugar. Luteolin is an abundant natural flavone with a prominent anti-bacterial function. However, it remains unclear how luteolin affects S. mutans pathogenicity including its acidogenicity and biofilm formation. In this study, the effect of luteolin on S. mutans growth, acid production, and its early and late biofilm formation and biofilm disruption was tested. Luteolin shows strong anti-biofilm activity, while it remains non-toxic for bacterial cell viability. In the biofilm, luteolin reduces the expression of S. mutans virulence genes such as gbpC, spaP, gtfBCD, and ftf encoding for surface adhesins and extracellular polysaccharides (EPS)-producing enzymes, which reflects in the strong reduction of bacteria and EPS. Further, it reduces water-insoluble glucan production in the biofilm, potentially, via direct interference with glucosyltransfereases (Gtfs). Moreover, at biofilm inhibitory concentrations, luteolin significantly reduces acid production by S. mutans. Finally, luteolin could target S. mutans amyloid proteins to disrupt the biofilm based on the observation that it inhibits the uptake of the amyloid dye, thioflavin T, by S. mutans extracellular proteins and failed to inhibit biofilm formation by the mutant strain lacking three main amyloid proteins. In conclusion, luteolin appears to be a potent natural compound with pleiotropic anti-biofilm properties against one of the main cariogenic human pathogens, S. mutans. IMPORTANCE Flavonoids are natural compounds with proven anti-bacterial and anti-biofilm properties. Here, we describe the anti-biofilm properties of natural flavone luteolin against the main cariogenic bacteria, S. mutans. Luteolin inhibited gene expression of cell surface adhesins, fructosyltransferases, and glucosyltransferases, which promotes a significant reduction of bacterial and EPS biomass in early and late biofilms. Moreover, luteolin could directly target S. mutans Gtfs and functional amyloids to modulate pathogenic biofilms. These observations provide important insights into the anti-biofilm properties of luteolin while laying out a framework for future therapeutic strategies targeting biofilm-associated virulence factors of oral pathogens.
Collapse
Affiliation(s)
- Lucille Rudin
- Department Research, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland
| | - Noelle Roth
- Department Research, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland
| | - Julien Kneubühler
- Department Research, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland
| | - Badri Nath Dubey
- CSSB Centre for Structural Systems Biology, Deutsches Elektronen-Synchrotron DESY, Notkestr, Hamburg, Germany
| | - Michael M. Bornstein
- Department Research, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland
- Department of Oral Health and Medicine, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland
| | - Viktoriya Shyp
- Department Research, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland
- Department of Oral Health and Medicine, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland
| |
Collapse
|
31
|
Duan Y, Xu P, Ge P, Chen L, Chen Y, Kankala RK, Wang S, Chen A. NIR-responsive carrier-free nanoparticles based on berberine hydrochloride and indocyanine green for synergistic antibacterial therapy and promoting infected wound healing. Regen Biomater 2023; 10:rbad076. [PMID: 37808956 PMCID: PMC10558098 DOI: 10.1093/rb/rbad076] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/31/2023] [Accepted: 08/12/2023] [Indexed: 10/10/2023] Open
Abstract
Bacterial infections cause severe health conditions, resulting in a significant economic burden for the public health system. Although natural phytochemicals are considered promising anti-bacterial agents, they suffer from several limitations, such as poor water solubility and low bioavailability in vivo, severely restricting their wide application. Herein, we constructed a near-infrared (NIR)-responsive carrier-free berberine hydrochloride (BH, phytochemicals)/indocyanine green (ICG, photosensitizer) nanoparticles (BI NPs) for synergistic antibacterial of an infected wound. Through electrostatic interaction and π-π stacking, the hydrophobic BH and amphiphilic ICG are initially self-assembled to generate carrier-free nanoparticles. The obtained BI NPs demonstrated NIR-responsive drug release behavior and better photothermal conversion efficiency of up to 36%. In addition, BI NPs stimulated by NIR laser exhibited remarkable antibacterial activity, which realized the synergistic antibacterial treatment and promoted infected wound healing. In summary, the current research results provided a candidate strategy for self-assembling new BI NPs to treat bacterial infections synergistically.
Collapse
Affiliation(s)
- Youyu Duan
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Peiyao Xu
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Panyuan Ge
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Linfei Chen
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Ying Chen
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Ranjith Kumar Kankala
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Shibin Wang
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Aizheng Chen
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, Fujian 361021, PR China
| |
Collapse
|
32
|
Hu X, Li Y, Piao Y, Karimi M, Wang Y, Wen F, Li H, Shi L, Liu Y. Two-Tailed Dynamic Covalent Amphiphile Combats Bacterial Biofilms. Adv Mater 2023; 35:e2301623. [PMID: 37207289 DOI: 10.1002/adma.202301623] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/27/2023] [Indexed: 05/21/2023]
Abstract
Drug combination provides an efficient pathway to combat drug resistance in bacteria and bacterial biofilms. However, the facile methodology to construct the drug combinations and their applications in nanocomposites is still lacking. Here the two-tailed antimicrobial amphiphiles (T2 A2 ) composed of nitric oxide (NO)-donor (diethylenetriamine NONOate, DN) and various natural aldehydes are reported. T2 A2 self-assemble into nanoparticles due to their amphiphilic nature, with remarkably low critical aggregation concentration. The representative cinnamaldehyde (Cin)-derived T2 A2 (Cin-T2 A2 ) assemblies demonstrate excellent bactericidal efficacy, notably higher than free Cin and free DN. Cin-T2 A2 assemblies kill multidrug-resistant staphylococci and eradicate their biofilms via multiple mechanisms, as proved by mechanism studies, molecular dynamics simulations, proteomics, and metabolomics. Furthermore, Cin-T2 A2 assemblies rapidly eradicate bacteria and alleviate inflammation in the subsequent murine infection models. Together, the Cin-T2 A2 assemblies may provide an efficient, non-antibiotic alternative in combating the ever-increasing threat of drug-resistant bacteria and their biofilms.
Collapse
Affiliation(s)
- Xiaowen Hu
- Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou, Zhejiang, 325001, P. R. China
- School of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yuanfeng Li
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325035, P. R. China
| | - Yinzi Piao
- Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou, Zhejiang, 325001, P. R. China
- School of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Mahdi Karimi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Yang Wang
- Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou, Zhejiang, 325001, P. R. China
| | - Feng Wen
- Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou, Zhejiang, 325001, P. R. China
| | - Huaqiong Li
- Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou, Zhejiang, 325001, P. R. China
| | - Linqi Shi
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yong Liu
- Wenzhou Institute, University of Chinese Academy of Sciences, Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou, Zhejiang, 325001, P. R. China
| |
Collapse
|
33
|
Sirangelo TM, Ludlow RA, Spadafora ND. Molecular Mechanisms Underlying Potential Pathogen Resistance in Cannabis sativa. Plants (Basel) 2023; 12:2764. [PMID: 37570918 PMCID: PMC10420965 DOI: 10.3390/plants12152764] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/23/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023]
Abstract
Cannabis (Cannabis sativa L.) is one of the earliest cultivated crops, valued for producing a broad spectrum of compounds used in medicinal products and being a source of food and fibre. Despite the availability of its genome sequences, few studies explore the molecular mechanisms involved in pathogen defense, and the underlying biological pathways are poorly defined in places. Here, we provide an overview of Cannabis defence responses against common pathogens, such as Golovinomyces spp., Fusarium spp., Botrytis cinerea and Pythium spp. For each of these pathogens, after a summary of their characteristics and symptoms, we explore studies identifying genes involved in Cannabis resistance mechanisms. Many studies focus on the potential involvement of disease-resistance genes, while others refer to other plants however whose results may be of use for Cannabis research. Omics investigations allowing the identification of candidate defence genes are highlighted, and genome editing approaches to generate resistant Cannabis species based on CRISPR/Cas9 technology are discussed. According to the emerging results, a potential defence model including both immune and defence mechanisms in Cannabis plant-pathogen interactions is finally proposed. To our knowledge, this is the first review of the molecular mechanisms underlying pathogen resistance in Cannabis.
Collapse
Affiliation(s)
- Tiziana M. Sirangelo
- ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development-Division Biotechnologies and Agroindustry, 00123 Rome, Italy
| | - Richard A. Ludlow
- School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK;
| | - Natasha D. Spadafora
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44121 Ferrara, Italy
| |
Collapse
|
34
|
Wei S, Tian Q, Husien HM, Tao Y, Liu X, Liu M, Bo R, Li J. The synergy of tea tree oil nano-emulsion and antibiotics against multidrug-resistant bacteria. J Appl Microbiol 2023; 134:lxad131. [PMID: 37401131 DOI: 10.1093/jambio/lxad131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/16/2023] [Accepted: 06/30/2023] [Indexed: 07/05/2023]
Abstract
AIMS We determined the synergistic effects of tea tree essential oil nano-emulsion (nanoTTO) and antibiotics against multidrug-resistant (MDR) bacteria in vitro and in vivo. Then, the underlying mechanism of action of nanoTTO was investigated. METHODS AND RESULTS Minimum inhibitory concentrations and fractional inhibitory concentration index (FICI) were determined. The transepithelial electrical resistance (TEER) and the expression of tight junction (TJ) protein of IPEC-J2 cells were measured to determine the in vitro efficacy of nanoTTO in combination with antibiotics. A mouse intestinal infection model evaluated the in vivo synergistic efficacy. Proteome, adhesion assays, quantitative real-time PCR, and scanning electron microscopy were used to explore the underlying mechanisms. Results showed that nanoTTO was synergistic (FICI ≤ 0.5) or partial synergistic (0.5 < FICI < 1) with antibiotics against MDR Gram-positive and Gram-negative bacteria strains. Moreover, combinations increased the TEER values and the TJ protein expression of IPEC-J2 cells infected with MDR Escherichia coli. The in vivo study showed that the combination of nanoTTO and amoxicillin improved the relative weight gain and maintained the structural integrity of intestinal barriers. Proteome showed that type 1 fimbriae d-mannose specific adhesin of E. coli was downregulated by nanoTTO. Then, nanoTTO reduced bacterial adhesion and invasion and inhibited the mRNA expression of fimC, fimG, and fliC, and disrupted bacterial membranes.
Collapse
Affiliation(s)
- SiMin Wei
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - QiMing Tian
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - Hosameldeen Mohamed Husien
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
- College of Veterinary Medicine, Albutana University, Rufaa 22217, Al Jazirah, Sudan
| | - Ya Tao
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - XiaoPan Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - MingJiang Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - RuoNan Bo
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - JinGui Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| |
Collapse
|
35
|
Rudin L, Bornstein MM, Shyp V. Inhibition of biofilm formation and virulence factors of cariogenic oral pathogen Streptococcus mutans by natural flavonoid phloretin. J Oral Microbiol 2023; 15:2230711. [PMID: 37416858 PMCID: PMC10321187 DOI: 10.1080/20002297.2023.2230711] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/30/2023] [Accepted: 06/23/2023] [Indexed: 07/08/2023] Open
Abstract
Objectives To evaluate the effect and mechanism of action of the flavonoid phloretin on the growth and sucrose-dependent biofilm formation of Streptococcus mutans. Methods Minimum inhibitory concentration, viability, and biofilm susceptibility assays were conducted to assess antimicrobial and antibiofilm effect of phloretin. Biofilm composition and structure were analysed with scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM). Water-soluble (WSG) and water-insoluble glucan (WIG) were determined using anthrone method. Lactic acid measurements and acid tolerance assay were performed to assess acidogenicity and aciduricity. Reverse transcription quantitative PCR (RT-qPCR) was used to measure the expression of virulence genes essential for surface attachment, biofilm formation, and quorum sensing. Results Phloretin inhibited S. mutans growth and viability in a dose-dependent manner. Furthermore, it reduced gtfB and gtfC gene expression, correlating with the reduction of extracellular polysaccharides (EPS)/bacteria and WIG/WSG ratio. Inhibition of comED and luxS gene expression, involved in stress tolerance, was associated with compromised acidogenicity and aciduricity of S. mutans. Conclusions Phloretin exhibits antibacterial properties against S. mutans, modulates acid production and tolerance, and reduces biofilm formation. Clinical significance Phloretin is a promising natural compound with pronounced inhibitory effect on key virulence factors of the cariogenic pathogen, S. mutans.
Collapse
Affiliation(s)
- Lucille Rudin
- Department Research, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland
| | - Michael M. Bornstein
- Department of Oral Health & Medicine, University Center for Dental Medicine Basel UZB, University of BaselBaselSwitzerland
- Head of the Department of Oral Health & Medicine, University Center for Dental Medicine Basel UZB, University of Basel. Mattenstrasse 40, Basel, Switzerland
| | - Viktoriya Shyp
- Postdoctoral Researcher. Department Research, University Center for Dental Medicine Basel UZB
- Department of Oral Health & Medicine, University Center for Dental Medicine Basel UZB, University of Basel. Mattenstrasse 40, Basel, Switzerland
| |
Collapse
|
36
|
Lima EMF, Winans SC, Pinto UM. Quorum sensing interference by phenolic compounds - A matter of bacterial misunderstanding. Heliyon 2023; 9:e17657. [PMID: 37449109 PMCID: PMC10336516 DOI: 10.1016/j.heliyon.2023.e17657] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 05/15/2023] [Accepted: 06/25/2023] [Indexed: 07/18/2023] Open
Abstract
Over the past decade, numerous publications have emerged in the literature focusing on the inhibition of quorum sensing (QS) by plant extracts and phenolic compounds. However, there is still a scarcity of studies that delve into the specific mechanisms by which these compounds inhibit QS. Thus, our question is whether phenolic compounds can inhibit QS in a specific or indirect manner and to elucidate the underlying mechanisms involved. This study is focused on the most studied QS system, namely, autoinducer type 1 (AI-1), represented by N-acyl-homoserine lactone (AHL) signals and the AHL-mediated QS responses. Here, we analyzed the recent literature in order to understand how phenolic compounds act at the cellular level, at sub-inhibitory concentrations, and evaluated by which QS inhibition mechanisms they may act. The biotechnological application of QS inhibitors holds promising prospects for the pharmaceutical and food industries, serving as adjunct therapies and in the prevention of biofilms on various surfaces.
Collapse
Affiliation(s)
- Emília Maria França Lima
- Department of Food and Experimental Nutrition, Food Research Center, Faculty of Pharmaceutical Sciences, University of Sao Paulo, São Paulo, Brazil
| | - Stephen C. Winans
- Department of Microbiology, 361A Wing Hall, Cornell University, Ithaca, NY, 14853, USA
| | - Uelinton Manoel Pinto
- Department of Food and Experimental Nutrition, Food Research Center, Faculty of Pharmaceutical Sciences, University of Sao Paulo, São Paulo, Brazil
| |
Collapse
|
37
|
Aguilera-Correa JJ, Nohynek L, Alakomi HL, Esteban J, Oksman-Caldentey KM, Puupponen-Pimiä R, Kinnari TJ, Perez-Tanoira R. Reduction of methicillin-resistant Staphylococcus aureus biofilm growth and development using arctic berry extracts. Front Cell Infect Microbiol 2023; 13:1176755. [PMID: 37424779 PMCID: PMC10327478 DOI: 10.3389/fcimb.2023.1176755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/23/2023] [Indexed: 07/11/2023] Open
Abstract
Introduction Surgical site infection remains a devastating and feared complication of surgery caused mainly by Staphylococcus aureus (S. aureus). More specifically, methicillin-resistant S. aureus (MRSA) infection poses a serious threat to global health. Therefore, developing new antibacterial agents to address drug resistance are urgently needed. Compounds derived from natural berries have shown a strong antimicrobial potential. Methods This study aimed to evaluate the effect of various extracts from two arctic berries, cloudberry (Rubus chamaemorus) and raspberry (Rubus idaeus), on the development of an MRSA biofilm and as treatment on a mature MRSA biofilm. Furthermore, we evaluated the ability of two cloudberry seed-coat fractions, hydrothermal extract and ethanol extract, and the wet-milled hydrothermal extract of a raspberry press cake to inhibit and treat biofilm development in a wound-like medium. To do so, we used a model strain and two clinical strains isolated from infected patients. Results All berry extracts prevented biofilm development of the three MRSA strains, except the raspberry press cake hydrothermal extract, which produced a diminished anti-staphylococcal effect. Discussion The studied arctic berry extracts can be used as a treatment for a mature MRSA biofilm, however some limitations in their use exist.
Collapse
Affiliation(s)
- John Jairo Aguilera-Correa
- Department of Clinical Microbiology, Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Liisa Nohynek
- VTT Technical Research Centre of Finland Ltd., Industrial Biotechnology and Food, Espoo, Finland
| | - Hanna-Leena Alakomi
- VTT Technical Research Centre of Finland Ltd., Industrial Biotechnology and Food, Espoo, Finland
| | - Jaime Esteban
- Department of Clinical Microbiology, Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Riitta Puupponen-Pimiä
- VTT Technical Research Centre of Finland Ltd., Industrial Biotechnology and Food, Espoo, Finland
| | - Teemu J. Kinnari
- Department of Otorhinolaryngology – Head and Neck Surgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Ramon Perez-Tanoira
- Department of Clinical Microbiology, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Spain
- Department of Health Sciences, Faculty of Medicine, University of Alcalá, Alcalá de Henares, Spain
| |
Collapse
|
38
|
Yu S, Li L, Zhao H, Liu M, Jiang L, Zhao Y. Citrus flavonoid extracts alter the profiling of rumen antibiotic resistance genes and virulence factors of dairy cows. Front Microbiol 2023; 14:1201262. [PMID: 37362928 PMCID: PMC10289158 DOI: 10.3389/fmicb.2023.1201262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 05/22/2023] [Indexed: 06/28/2023] Open
Abstract
Citrus flavonoid extracts (CFE) have the potential to reduce rumen inflammation, improve ruminal function, and enhance production performance in ruminants. Our previous studies have investigated the effects of CFE on the structure and function of rumen microbiota in dairy cows. However, it remains unclear whether CFE affects the prevalence of antibiotic resistance genes (ARG) and virulence factors genes (VFG) in the rumen. Therefore, metagenomics was used to identify the rumen ARG and VFG in lactating dairy cows fed with CFE diets. The results showed that CFE significantly reduced the levels of Multidrug and Antiphagocytosis in the rumen (p < 0.05) and increased the levels of Tetracycline, Iron uptake system, and Magnesium uptake system (p < 0.05). Furthermore, the changes were found to have associations with the phylum Lentisphaerae. It was concluded that CFE could be utilized as a natural plant product to regulate virulence factors and antibiotic resistance of rumen microbiota, thereby improving rumen homeostasis and the health of dairy cows.
Collapse
Affiliation(s)
- Shiqiang Yu
- Beijing Key Laboratory of Dairy Cow Nutrition, College of Animal Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Liuxue Li
- Beijing Key Laboratory of Dairy Cow Nutrition, College of Animal Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Huiying Zhao
- Beijing Key Laboratory of Dairy Cow Nutrition, College of Animal Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Ming Liu
- Beijing Key Laboratory of Dairy Cow Nutrition, College of Animal Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Linshu Jiang
- Beijing Key Laboratory of Dairy Cow Nutrition, College of Animal Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Yuchao Zhao
- Beijing Key Laboratory of Dairy Cow Nutrition, College of Animal Science and Technology, Beijing University of Agriculture, Beijing, China
- Beijing Beinong Enterprise Management Co., Ltd., Beijing, China
| |
Collapse
|
39
|
Abdelaziz AA, Kamer AMA, Al-Monofy KB, Al-Madboly LA. Pseudomonas aeruginosa's greenish-blue pigment pyocyanin: its production and biological activities. Microb Cell Fact 2023; 22:110. [PMID: 37291560 DOI: 10.1186/s12934-023-02122-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 05/25/2023] [Indexed: 06/10/2023] Open
Abstract
A subject of great interest is the bioprospecting of microorganisms and their bioactive byproducts, such as pigments. Microbial pigments have various benefits, including being safe to use due to their natural makeup, having therapeutic effects, and being produced all year round, regardless of the weather or location. Pseudomonas aeruginosa produces phenazine pigments that are crucial for interactions between Pseudomonas species and other living things. Pyocyanin pigment, which is synthesized by 90-95% of P. aeruginosa, has potent antibacterial, antioxidant, and anticancer properties. Herein, we will concentrate on the production and extraction of pyocyanin pigment and its biological use in different areas of biotechnology, engineering, and biology.
Collapse
Affiliation(s)
- Ahmed A Abdelaziz
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Amal M Abo Kamer
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Khaled B Al-Monofy
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
| | - Lamiaa A Al-Madboly
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| |
Collapse
|
40
|
Pinto L, Tapia-Rodríguez MR, Baruzzi F, Ayala-Zavala JF. Plant Antimicrobials for Food Quality and Safety: Recent Views and Future Challenges. Foods 2023; 12:2315. [PMID: 37372527 DOI: 10.3390/foods12122315] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
The increasing demand for natural, safe, and sustainable food preservation methods drove research towards the use of plant antimicrobials as an alternative to synthetic preservatives. This review article comprehensively discussed the potential applications of plant extracts, essential oils, and their compounds as antimicrobial agents in the food industry. The antimicrobial properties of several plant-derived substances against foodborne pathogens and spoilage microorganisms, along with their modes of action, factors affecting their efficacy, and potential negative sensory impacts, were presented. The review highlighted the synergistic or additive effects displayed by combinations of plant antimicrobials, as well as the successful integration of plant extracts with food technologies ensuring an improved hurdle effect, which can enhance food safety and shelf life. The review likewise emphasized the need for further research in fields such as mode of action, optimized formulations, sensory properties, safety assessment, regulatory aspects, eco-friendly production methods, and consumer education. By addressing these gaps, plant antimicrobials can pave the way for more effective, safe, and sustainable food preservation strategies in the future.
Collapse
Affiliation(s)
- Loris Pinto
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126 Bari, Italy
| | - Melvin R Tapia-Rodríguez
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de Febrero 818 sur, Col. Centro, Ciudad Obregón, Obregón 85000, Sonora, Mexico
| | - Federico Baruzzi
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126 Bari, Italy
| | - Jesús Fernando Ayala-Zavala
- Centro de Investigación en Alimentación y Desarrollo, A.C, Carretera Gustavo Enrique Astiazarán Rosas 46, Hermosillo 83304, Sonora, Mexico
| |
Collapse
|
41
|
Mahdi I, Fahsi N, Annaz H, Drissi B, Barakate M, Mahmoud MF, Sobeh M. Thymus satureioides Coss.: Mineral Composition, Nutritional Value, Phytochemical Profiling, and Dermatological Properties. Molecules 2023; 28:4636. [PMID: 37375191 DOI: 10.3390/molecules28124636] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Zaitra, Thymus satureioides, is an aromatic plant with a long history of use in traditional medicine. In this study, we assessed the mineral composition, nutritional value, phytocontents, and dermatological properties of the aerial parts of T. satureioides. The plant contained high contents of calcium and iron, moderate levels of magnesium, manganese, and zinc, and low contents of total nitrogen, total phosphorus, total potassium, and copper. It is rich in several amino acids, including asparagine, 4-hydroxyproline, isoleucine, and leucine, and the essential amino acids account for 60.8%. The extract contains considerable amounts of polyphenols and flavonoids (TPC = 118.17 mg GAE/g extract and TFC = 32.32 mg quercetin/g extract). It also comprises 46 secondary metabolites, identified through LC-MS/MS analysis, belonging to phenolic acids, chalcones, and flavonoids. The extract elicited pronounced antioxidant activities, inhibited the growth of P. aeruginosa (MIC = 50 mg/mL), and reduced biofilm formation by up to 35.13% using the ¼ sub-MIC of 12.5 mg/mL. Moreover, bacterial extracellular proteins and exopolysaccharides were diminished by 46.15% and 69.04%, respectively. Likewise, the swimming of the bacterium was impaired (56.94% decrease) in the presence of the extract. In silico, skin permeability and sensitization effects revealed that out of the 46 identified compounds, 33 were predicted to be exempt from any skin sensitivity risk (Human Sensitizer Score ≤ 0.5), while extensive skin permeabilities were observed (Log Kp = -3.35--11.98 cm/s). This study provides scientific evidence about the pronounced activities of T. satureioides, supports its traditional uses, and promotes its utilization in the development of new drugs, food supplements, and dermatological agents.
Collapse
Affiliation(s)
- Ismail Mahdi
- AgroBioSciences Department, College for Sustainable Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - Nidal Fahsi
- AgroBioSciences Department, College for Sustainable Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - Hassan Annaz
- AgroBioSciences Department, College for Sustainable Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - Badreddine Drissi
- AgroBioSciences Department, College for Sustainable Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - Mustapha Barakate
- AgroBioSciences Department, College for Sustainable Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
- Laboratory of Microbial Biotechnology, AgroSciences and Environment, CNRST Labeled Research Unit N°4, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
| | - Mona F Mahmoud
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Mansour Sobeh
- AgroBioSciences Department, College for Sustainable Agriculture and Environmental Science, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| |
Collapse
|
42
|
Ibrahim RM, M. Eltanany B, Pont L, Benavente F, ElBanna SA, Otify AM. Unveiling the functional components and antivirulence activity of mustard leaves using an LC-MS/MS, molecular networking, and multivariate data analysis integrated approach. Food Res Int 2023; 168:112742. [PMID: 37120197 DOI: 10.1016/j.foodres.2023.112742] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/14/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023]
Abstract
Plant extracts have recently received increased attention as alternative sources of antimicrobial agents in the fight against multidrug-resistant bacteria. Non-targeted metabolomics liquid chromatography-quadrupole time-of-flight tandem mass spectrometry, molecular networking, and chemometrics were used to evaluate the metabolic profiles of red and green leaves of two Brassica juncea (L.) varieties, var. integrifolia (IR and IG) and var. rugosa (RR and RG), as well as to establish a relationship between the elucidated chemical profiles and antivirulence activity. In total, 171 metabolites from different classes were annotated and principal component analysis revealed higher levels of phenolics and glucosinolates in var. integrifolia leaves and color discrimination, whereas fatty acids were enriched in var. rugosa, particularly trihydroxy octadecadienoic acid. All extracts demonstrated significant antibacterial activity against Staphylococcus aureus and Enterococcus faecalis, presenting the IR leaves the highest antihemolytic activity against S. aureus (99 % inhibition), followed by RR (84 %), IG (82 %), and RG (37 %) leaves. Antivirulence of IR leaves was further validated by reduction in alpha-hemolysin gene transcription (∼4-fold). Using various multivariate data analyses, compounds positively correlated to bioactivity, primarily phenolic compounds, glucosinolates, and isothiocyanates, were also identified.
Collapse
|
43
|
Mosaddad SA, Hussain A, Tebyaniyan H. Green Alternatives as Antimicrobial Agents in Mitigating Periodontal Diseases: A Narrative Review. Microorganisms 2023; 11:1269. [PMCID: PMC10220622 DOI: 10.3390/microorganisms11051269] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/26/2023] [Accepted: 05/09/2023] [Indexed: 06/03/2023] Open
Abstract
Periodontal diseases and dental caries are the most common infectious oral diseases impacting oral health globally. Oral cavity health is crucial for enhancing life quality since it serves as the entranceway to general health. The oral microbiome and oral infectious diseases are strongly correlated. Gram-negative anaerobic bacteria have been associated with periodontal diseases. Due to the shortcomings of several antimicrobial medications frequently applied in dentistry, the lack of resources in developing countries, the prevalence of oral inflammatory conditions, and the rise in bacterial antibiotic resistance, there is a need for reliable, efficient, and affordable alternative solutions for the prevention and treatment of periodontal diseases. Several accessible chemical agents can alter the oral microbiota, although these substances also have unfavorable symptoms such as vomiting, diarrhea, and tooth discoloration. Natural phytochemicals generated from plants that have historically been used as medicines are categorized as prospective alternatives due to the ongoing quest for substitute products. This review concentrated on phytochemicals or herbal extracts that impact periodontal diseases by decreasing the formation of dental biofilms and plaques, preventing the proliferation of oral pathogens, and inhibiting bacterial adhesion to surfaces. Investigations examining the effectiveness and safety of plant-based medicines have also been presented, including those conducted over the past decade.
Collapse
Affiliation(s)
- Seyed Ali Mosaddad
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz 71348-14336, Iran;
| | - Ahmed Hussain
- School of Dentistry, Edmonton Clinic Health Academy, University of Alberta, Edmonton, AB T6G 1C9, Canada
| | - Hamid Tebyaniyan
- Science and Research Branch, Islimic Azade University, Tehran 14878-92855, Iran
| |
Collapse
|
44
|
Gao Y, Wang H, Li X, Niu X. Molecular mechanism of green tea polyphenol epicatechin gallate attenuating Staphylococcus aureus pathogenicity by targeting Ser/Thr phosphatase Stp1. Food Funct 2023; 14:4792-4806. [PMID: 37128867 DOI: 10.1039/d3fo00170a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In this study, through virtual screening and in vitro bioactivity assays, we discovered that (-)-epicatechin gallate (ECG), a polyphenol compound extracted from green tea, demonstrated marked anti-Ser/Thr phosphatase (Stp1) activity towards Staphylococcus aureus (S. aureus) with an IC50 value of 8.35 μM. By targeting S. aureus Stp1, ECG prevented the up-regulation of virulence gene and the formation of antibody membrane and protected the mice from S. aureus infection. Through MD simulation, the allosteric inhibitory mechanism of ECG on Stp1 was determined. The Stp1-ECG complex model underwent a significant change in conformation; its flap subdomain changed from opening to closing, whereas Stp1 activity was lost when bound to ECG. In addition, the MD simulation results of Stp1 and several tea polyphenol compounds showed that gallate groups and fewer adjacent phenolic hydroxyl groups contributed to the binding of Stp1 and inhibitors. As an inhibitor targeting S. aureus Stp1, ECG reduced the pathogenicity of S. aureus without inhibiting S. aureus, which largely reduced the possibility of drug resistance. Our findings demonstrated a novel molecular mechanism of green tea as the usual drink against S. aureus infection and elucidated the future design of allosteric inhibitors targeting Stp1.
Collapse
Affiliation(s)
- Yawen Gao
- College of Food Science and Engineering, Jilin University, Changchun 130062, P.R. China.
| | - Hongsu Wang
- College of Food Science and Engineering, Jilin University, Changchun 130062, P.R. China.
| | - Xuening Li
- College of Food Science and Engineering, Jilin University, Changchun 130062, P.R. China.
| | - Xiaodi Niu
- College of Food Science and Engineering, Jilin University, Changchun 130062, P.R. China.
| |
Collapse
|
45
|
Martínez Chamás J, Isla MI, Zampini IC. Antibacterial and Antibiofilm Activity of Different Species of Fabiana sp. Extract Obtained via Maceration and Ultrasound-Assisted Extraction against Staphylococcus epidermidis. Plants (Basel) 2023; 12:plants12091830. [PMID: 37176887 PMCID: PMC10180551 DOI: 10.3390/plants12091830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/15/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
Staphylococcus epidermidis is an opportunistic pathogen that, under certain conditions, can induce aggravated infectious processes, mainly in immunosuppressed patients. Moreover, S. epidermidis is one of the leading causes of medical device- and implant-associated infections and is also recognized as a canonical biofilm producer. Fabiana punensis, F. densa and F. patagonica are three medicinal plants that grow in arid environments in Argentina (Altoandina, Puna, Prepuna and Monte regions). In this work, we studied the antimicrobial activity of alcoholic extracts of these plant species obtained via maceration (M) and ultrasound-assisted extraction (UAE) against S. epidermidis. In addition, the antibiofilm activity of the F. densa extract was also evaluated. It was found that the extracts obtained via M did not present differences with those obtained via UAE regarding the chemical profile. F. densa showed the lowest minimum inhibitory concentration (MIC) value (75 µg GAE/mL). At concentrations higher than the MIC, the extract induced the release of cellular constituents. At the concentration of 1/8× MIC, the extract inhibited biofilm formation by 78%, reducing metabolic activity by 67%. On the other hand, it presented a low percentage of preformed biofilm removal. In all assays, gallic acid (GA) has been used as a reference antimicrobial compound. Finally, it was shown via microscopy visualization that the extract reduces adhesion to hydrophobic and hydrophilic surfaces. Thus, F. densa extracts could potentially be used for the antibiotic treatment of infections produced by S. epidermidis or as an inhibitor agent of production biofilm, avoiding infections caused by medical devices.
Collapse
Affiliation(s)
- José Martínez Chamás
- Laboratorio de Investigación de Productos Naturales (LIPRON), Instituto de Bioprospección y Fisiología Vegetal (INBIOFIV-CONICET-UNT), Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, San Lorenzo 1469, San Miguel de Tucumán PC:4000, Tucumán, Argentina
| | - María Inés Isla
- Laboratorio de Investigación de Productos Naturales (LIPRON), Instituto de Bioprospección y Fisiología Vegetal (INBIOFIV-CONICET-UNT), Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, San Lorenzo 1469, San Miguel de Tucumán PC:4000, Tucumán, Argentina
| | - Iris Catiana Zampini
- Laboratorio de Investigación de Productos Naturales (LIPRON), Instituto de Bioprospección y Fisiología Vegetal (INBIOFIV-CONICET-UNT), Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, San Lorenzo 1469, San Miguel de Tucumán PC:4000, Tucumán, Argentina
| |
Collapse
|
46
|
Xiao WL, Wang N, Yang LL, Feng YM, Chu PL, Zhang JJ, Liu SS, Shao WB, Zhou X, Liu LW, Yang S. Exploiting Natural Maltol for Synthesis of Novel Hydroxypyridone Derivatives as Promising Anti-Virulence Agents in Bactericides Discovery. J Agric Food Chem 2023; 71:6603-6616. [PMID: 37083434 DOI: 10.1021/acs.jafc.3c00465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Anti-infection strategies based on suppression of bacterial virulence factors represent a crucial direction for the development of new antibacterial agents to address the resistance triggered by traditional drugs'/pesticides' bactericidal activity. To identify and obtain more effective and diverse molecules targeting virulence, we prepared a series of 3-hydroxy-2-methyl-1-pyridin-4-(1H)-one derivatives and evaluated their antibacterial behaviors. Compound B6 exhibited the highest bioactivity, with half-maximal effective concentration (EC50) values ranging fro9m 10.03 to 30.16 μg mL-1 against three plant pathogenic bacteria. The antibacterial mechanism showed that it could considerably reduce various virulence factors (such as extracellular enzymes, biofilm, and T3SS effectors) and inhibit the expression of virulence factor-related genes. In addition, the control efficiency of compound B6 against rice bacterial leaf blight at 200 μg mL-1 was 46.15-49.15%, and their control efficiency was improved by approximately 12% after the addition of pesticide additives. Thus, a new class of bactericidal candidates targeting bacterial virulence factors was developed for controlling plant bacterial diseases.
Collapse
Affiliation(s)
- Wan-Lin Xiao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Na Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Lin-Li Yang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Yu-Mei Feng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Pan-Long Chu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jiao-Jiao Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Shuai-Shuai Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wu-Bin Shao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiang Zhou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Li-Wei Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Song Yang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| |
Collapse
|
47
|
Hagen EH, Blackwell AD, Lightner AD, Sullivan RJ. Homo medicus: The transition to meat eating increased pathogen pressure and the use of pharmacological plants in Homo. Am J Biol Anthropol 2023; 180:589-617. [PMID: 36815505 DOI: 10.1002/ajpa.24718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 01/31/2023] [Accepted: 02/08/2023] [Indexed: 02/24/2023]
Abstract
The human lineage transitioned to a more carnivorous niche 2.6 mya and evolved a large body size and slower life history, which likely increased zoonotic pathogen pressure. Evidence for this increase includes increased zoonotic infections in modern hunter-gatherers and bushmeat hunters, exceptionally low stomach pH compared to other primates, and divergence in immune-related genes. These all point to change, and probably intensification, in the infectious disease environment of Homo compared to earlier hominins and other apes. At the same time, the brain, an organ in which immune responses are constrained, began to triple in size. We propose that the combination of increased zoonotic pathogen pressure and the challenges of defending a large brain and body from pathogens in a long-lived mammal, selected for intensification of the plant-based self-medication strategies already in place in apes and other primates. In support, there is evidence of medicinal plant use by hominins in the middle Paleolithic, and all cultures today have sophisticated, plant-based medical systems, add spices to food, and regularly consume psychoactive plant substances that are harmful to helminths and other pathogens. We propose that the computational challenges of discovering effective plant-based treatments, the consequent ability to consume more energy-rich animal foods, and the reduced reliance on energetically-costly immune responses helped select for increased cognitive abilities and unique exchange relationships in Homo. In the story of human evolution, which has long emphasized hunting skills, medical skills had an equal role to play.
Collapse
Affiliation(s)
- Edward H Hagen
- Department of Anthropology, Washington State University, Pullman, Washington, USA
| | - Aaron D Blackwell
- Department of Anthropology, Washington State University, Pullman, Washington, USA
| | - Aaron D Lightner
- Department of Anthropology, Washington State University, Pullman, Washington, USA
- Department of the Study of Religion, Aarhus University, Aarhus, Denmark
| | - Roger J Sullivan
- Department of Anthropology, California State University, Sacramento, California, USA
| |
Collapse
|
48
|
Gomaa NH, El-Aziz NKA, El-Naenaeey ESY, Abdelaziz WS, Sewid AH. Antimicrobial potential of myricetin-coated zinc oxide nanocomposite against drug-resistant Clostridium perfringens. BMC Microbiol 2023; 23:79. [PMID: 36949384 PMCID: PMC10031903 DOI: 10.1186/s12866-023-02800-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 02/20/2023] [Indexed: 03/24/2023] Open
Abstract
BACKGROUND Clostridium perfringens (C. perfringens) is an important pathogen in livestock animals and humans causing a wide array of systemic and enteric diseases. The current study was performed to investigate the inhibitory activity of myricetin (MYR), polyvinyl alcohol (PVA), and zinc oxide (ZnO) nanocomposite against growth and α-hemolysin of C. perfringens isolated from beef meat and chicken sources. RESULTS The overall occurrence of C. perfringens was 29.8%. The prevalence of C. perfringens was higher in chicken (38.3%) than in beef meat products (10%). The antimicrobial susceptibility testing revealed that C. perfringens isolates exhibited high resistance levels for metronidazole (93%), bacitracin (89%), penicillin G (84%), and lincomycin (76%). Of note, 1% of C. perfringens isolates were pandrug-resistant (PDR), 4% were extensive drug-resistant (XDR), while 91% were multidrug-resistant. The results of broth microdilution technique revealed that all tested C. perfringens isolates were susceptible to MYR-loaded ZnO/PVA with minimum inhibitory concentrations (MICs) ranged from 0.125 to 2 µg/mL. Moreover, the MYR either alone or combined with the nanocomposite had no cytotoxic activities on chicken red blood cells (cRBCs). Transcriptional modifications of MYR, ZnO, ZnO/PVA, and ZnO/PVA/MYR nanocomposite were determined, and the results showed significant down-regulation of α-hemolysin fold change to 0.5, 0.7, 0.6, and 0.28, respectively compared to the untreated bacteria. CONCLUSION This is an in vitro study reporting the antimicrobial potential of MYR-coated ZnO nanocomposite as an effective therapeutic candidate against C. perfringens. An in vivo approach is the next step to provide evidence for applying these alternatives in the treatment and prevention of C. perfringens-associated diseases.
Collapse
Affiliation(s)
- Nada H Gomaa
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Sharkia, Egypt
| | - Norhan K Abd El-Aziz
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Sharkia, Egypt.
| | - El-Sayed Y El-Naenaeey
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Sharkia, Egypt
| | - Walaa S Abdelaziz
- Avian and Rabbit Medicine Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt
| | - Alaa H Sewid
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Sharkia, Egypt
| |
Collapse
|
49
|
Qiu L, Wang Y, Du W, Ai F, Yin Y, Guo H. Efflux pumps activation caused by mercury contamination prompts antibiotic resistance and pathogen's virulence under ambient and elevated CO 2 concentration. Sci Total Environ 2023; 863:160831. [PMID: 36526183 DOI: 10.1016/j.scitotenv.2022.160831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
The occurrence and development of antibiotic resistance genes (ARGs) in pathogens poses serious threatens to global health. Agricultural soils provide reservoirs for pathogens and ARGs, closely related to public health and food safety. Especially, metals stress provides more long-standing selection pressure for ARGs, and climate change is a "threat multiplier" for the spread of ARGs. However, little is known about the impact of metals contamination on pathogens and ARGs in agricultural soils and their sensitivity to ongoing climate changes. To fill this gap, a pot experiment was conducted in open-top chambers (OTCs) to investigate the influence of mercury (Hg) contamination on the distribution of soil pathogens and ARGs under ambient and elevated CO2 concentration. Results showed that the relative abundance of common plant and human pathogens increased significantly in Hg-contaminated soil under two CO2 concentrations. Hg contamination was a positive effector of the activation of efflux pumps and offensive virulence factors (adhere and secretion system) under two CO2 levels. Activation of efflux pumps caused by Hg contamination might contribute to changes of virulence or fitness of certain pathogens. Overall, our study emphasizes the critical role of efflux pumps as an intersection of antibiotic resistance and pathogen's virulence under Hg stress.
Collapse
Affiliation(s)
- Linlin Qiu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Yabo Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Wenchao Du
- School of Environment, Nanjing Normal University, Nanjing 210023, China
| | - Fuxun Ai
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Ying Yin
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Hongyan Guo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China; Joint International Research Centre for Critical Zone Science-University of Leeds and Nanjing University, Nanjing University, Nanjing 210023, China.
| |
Collapse
|
50
|
Bai YB, Yang XR, Li B, Zhou XZ, Wang WW, Cheng FS, Zhang JY. Virtual Screening and In Vitro Experimental Verification of LuxS Inhibitors for Escherichia coli O157:H7. Microbiol Spectr 2023; 11:e0350222. [PMID: 36809060 PMCID: PMC10100900 DOI: 10.1128/spectrum.03502-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 02/02/2023] [Indexed: 02/23/2023] Open
Abstract
Enterohemorrhagic Escherichia coli O157:H7 is an important foodborne pathogen that forms biofilms. In this study, three quorum-sensing (QS) inhibitors (M414-3326, 3254-3286, and L413-0180) were obtained through virtual screening, and their in vitro antibiofilm activities were validated. Briefly, the three-dimensional structure model of LuxS was constructed and characterized using the SWISS-MODEL. High-affinity inhibitors were screened from the ChemDiv database (1,535,478 compounds) using LuxS as a ligand. Five compounds (L449-1159, L368-0079, M414-3326, 3254-3286, and L413-0180) with a good inhibitory effect (50% inhibitory concentration <10 μM) on type II QS signal molecule autoinducer-2 (AI-2) were obtained using a AI-2 bioluminescence assay. The absorption, distribution, metabolism, excretion, and toxicity (ADMET) properties predicated that the five compounds had high intestinal absorption levels (high) and plasma protein binding (absorbent strong) and did not inhibit the metabolism of CYP2D6 metabolic enzymes. In addition, molecular dynamics simulation showed that compounds L449-1159 and L368-0079 could not stably bind with LuxS. Thus, these compounds were excluded. Furthermore, surface plasmon resonance results showed that the three compounds could specifically bind to LuxS. IN addition, the three compounds could effectively inhibit the biofilm formation without affecting the growth and metabolism of the bacteria. Finally, the reverse transcription-quantitative PCR results showed that the three compounds downregulated the expression of the LuxS gene. Overall, these results revealed that the three compounds obtained through virtual screening could inhibit biofilm formation of E. coli O157:H7 and are potential LuxS inhibitors that can be used to treat E. coli O157:H7 infections. IMPORTANCE E. coli O157:H7 is a foodborne pathogen of public health importance. Quorum sensing (QS) is a form of bacterial communication that can regulate various group behaviors, including biofilm formation. Here, we identified three QS AI-2 inhibitors (M414-3326, 3254-3286, and L413-0180) that can stably and specifically bind to LuxS protein. The three QS AI-2 inhibitors inhibited biofilm formation without affecting the growth and metabolic activity of E. coli O157:H7. The three QS AI-2 inhibitors are promising agents for treating E. coli O157:H7 infections. Further studies to identify the mechanism of the three QS AI-2 inhibitors are needed to develop new drugs to overcome antibiotic resistance.
Collapse
Affiliation(s)
- Yu-Bin Bai
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, Gansu, People’s Republic of China
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, Gansu, People’s Republic of China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, People’s Republic of China
| | - Xiao-Rong Yang
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, Gansu, People’s Republic of China
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, Gansu, People’s Republic of China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, People’s Republic of China
| | - Bing Li
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, Gansu, People’s Republic of China
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, Gansu, People’s Republic of China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, People’s Republic of China
| | - Xu-Zheng Zhou
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, Gansu, People’s Republic of China
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, Gansu, People’s Republic of China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, People’s Republic of China
| | - Wei-Wei Wang
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, Gansu, People’s Republic of China
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, Gansu, People’s Republic of China
| | - Fu-Sheng Cheng
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, Gansu, People’s Republic of China
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, Gansu, People’s Republic of China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, People’s Republic of China
| | - Ji-Yu Zhang
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, Gansu, People’s Republic of China
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, Gansu, People’s Republic of China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, People’s Republic of China
| |
Collapse
|