ArticleBMC microbiology2023
Antibacterial, antibiofilm, and anti-quorum sensing activities of pyocyanin against methicillin-resistant Staphylococcus aureus: in vitro and in vivo study.
Article in BMC microbiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed, 43 citations in OpenAlex.
- Optimization of Pyocyanin Production byAntibiotics (Basel, Switzerland) · 2026Article
- Environmental and chemical modulation of Staphylococcus aureus Newman biofilm formation.Applied microbiology and biotechnology · 2026Article
- Hijacking the signal: a critical evaluation of quorum sensing inhibitors as a next-generation approach against Staphylococcus aureus.Cell communication and signaling : CCS · 2026Review
- Synergistic inhibition of agr quorum sensing in methicillin-resistantMicrobiology spectrum · 2026Article
- Microbial and host innate immune factors affecting the persistence ofFrontiers in cellular and infection microbiology · 2026Review
- Quorum-Sensing Inhibitors as Potential Antibacterial Agents Against Staphylococcus aureus: A Comprehensive Review.Chemistry & biodiversity · 2026Review
- Deciphering the efficacy of staphyloxanthin-encapsulated niosomal nanovesicles to attenuate biofilm formation, quorum sensing, and meropenem persistence in Acinetobacter baumannii.BMC microbiology · 2025Article
- The dual antifungal and antibiofilm activities of β-carotene against multidrug-resistant Candida albicans induce wound healing in a diabetic rat model: an in vitro and in vivo study.BMC microbiology · 2025Article
- Advances in biomanufacturing and recent biological applications of the fundamental bacterial carotenoids: a comprehensive review.Microbial cell factories · 2025Review
- An insight into pyocyanin: production, characterization, and evaluation of its in vitro antibacterial, antifungal, antibiofilm and in vivo anti-schistosomal potency.BMC microbiology · 2025Article
- Structural and functional analysis of the accessory gene regulators of Staphylococcus aureus and Staphylococcus epidermidis: an in Silico approach.BMC microbiology · 2025Article
- Coating silicon catheters with the optimized and stable carotenoid bioproduct from Micrococcus luteus inhibited the biofilm formation by multidrug-resistant Enterococcus faecalis via downregulation of GelE gene expression.Microbial cell factories · 2025Article
- In vitro and in vivo investigation of the antibacterial, antivirulence, and antiquorum sensing activities of β-carotene against difficult-to-treat resistant Pseudomonas aeruginosa.BMC microbiology · 2025Article
- Restoration of Oxacillin susceptibility in MRSA strains by NPPB.Scientific reports · 2025Article
- DisarmingPathogens (Basel, Switzerland) · 2025Review
- Quantification of Pseudomonas aeruginosa biofilms using electrochemical methods.Access microbiology · 2025Article
- Two Strains of EndophyticIndian journal of microbiology · 2024Article
- Pigments from pathogenic bacteria: a comprehensive update on recent advances.World journal of microbiology & biotechnology · 2024Review
- Transforming microbial pigment into therapeutic revelation: extraction and characterization of pyocyanin from Pseudomonas aeruginosa and its therapeutic potential as an antibacterial and anticancer agent.Microbial cell factories · 2024Article
- In vitro antimicrobial and antibiofilm screening of eighteen Iranian medicinal plants.BMC complementary medicine and therapies · 2024Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMethicillin-resistant Staphylococcus aureus (MRSA) infections are considered a major public health problem, as the treatment options are restricted. Biofilm formation and the quorum sensing (QS) system play a pivotal role in S. aureus pathogenicity. Hence, this study was performed to explore the antibacterial effect of pyocyanin (PCN) on MRSA as well as its effect on MRSA biofilm and QS.
resultsData revealed that PCN exhibited strong antibacterial activity against all test MRSA isolates (n = 30) with a MIC value equal to 8 µg/ml. About 88% of MRSA biofilms were eradicated by PCN treatment using the crystal violet assay. The disruption of MRSA biofilm was confirmed using confocal laser scanning microscopy, which showed a reduction in bacterial viability (approximately equal to 82%) and biofilm thickness (approximately equal to 60%). Additionally, the disruption of the formation of microcolonies and the disturbance of the connection between bacterial cells in the MRSA biofilm after PCN treatment were examined by scanning electron microscopy. The 1/2 and 1/4 MICs of PCN exerted promising anti-QS activity without affecting bacterial viability; Agr QS-dependent virulence factors (hemolysin, protease, and motility), and the expression of agrA gene, decreased after PCN treatment. The in silico analysis confirmed the binding of PCN to the AgrA protein active site, which blocked its action. The in vivo study using the rat wound infection model confirmed the ability of PCN to modulate the biofilm and QS of MRSA isolates.
conclusionThe extracted PCN seems to be a good candidate for treating MRSA infection through biofilm eradication and Agr QS inhibition.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.