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quorum sensing

  • Concurrent Local Delivery of Diflunisal Limits Bone Destruction but Fails To Improve Systemic Vancomycin Efficacy during <span class="named-content genus-species" id="named-content-1">Staphylococcus aureus</span> Osteomyelitis
    Clinical Therapeutics
    Concurrent Local Delivery of Diflunisal Limits Bone Destruction but Fails To Improve Systemic Vancomycin Efficacy during Staphylococcus aureus Osteomyelitis

    Staphylococcus aureus osteomyelitis is a debilitating infection of bone. Treatment of osteomyelitis is impaired by the propensity of invading bacteria to induce pathological bone remodeling that may limit antibiotic penetration to the infectious focus. The nonsteroidal anti-inflammatory drug diflunisal was previously identified as an osteoprotective adjunctive therapy...

    Thomas J. Spoonmore, Caleb A. Ford, Jacob M. Curry, Scott A. Guelcher, James E. Cassat
  • Novel Peptide from Commensal <span class="named-content genus-species" id="named-content-1">Staphylococcus simulans</span> Blocks Methicillin-Resistant <span class="named-content genus-species" id="named-content-2">Staphylococcus aureus</span> Quorum Sensing and Protects Host Skin from Damage
    Editor's Pick Mechanisms of Action: Physiological Effects
    Novel Peptide from Commensal Staphylococcus simulans Blocks Methicillin-Resistant Staphylococcus aureus Quorum Sensing and Protects Host Skin from Damage

    Recent studies highlight the abundance of commensal coagulase-negative staphylococci (CoNS) on healthy skin. Evidence suggests that CoNS actively shape the skin immunological and microbial milieu to resist colonization or infection by opportunistic pathogens, including methicillin-resistant...

    Morgan M. Brown, Jakub M. Kwiecinski, Luis Mejia Cruz, Ali Shahbandi, Daniel A. Todd, Nadja B. Cech, Alexander R. Horswill
  • Various Evolutionary Trajectories Lead to Loss of the Tobramycin-Potentiating Activity of the Quorum-Sensing Inhibitor Baicalin Hydrate in <em>Burkholderia cenocepacia</em> Biofilms
    Mechanisms of Resistance
    Various Evolutionary Trajectories Lead to Loss of the Tobramycin-Potentiating Activity of the Quorum-Sensing Inhibitor Baicalin Hydrate in Burkholderia cenocepacia Biofilms

    Combining antibiotics with potentiators that increase their activity is a promising strategy to tackle infections caused by antibiotic-resistant bacteria. As potentiators do not interfere with essential processes, it has been hypothesized that they are less likely to induce resistance.

    Andrea Sass, Lisa Slachmuylders, Heleen Van Acker, Ian Vandenbussche, Lisa Ostyn, Mona Bové, Aurélie Crabbé, Laurent R. Chiarelli, Silvia Buroni, Filip Van Nieuwerburgh, Emmanuel Abatih, Tom Coenye
  • Uncoupled Quorum Sensing Modulates the Interplay of Virulence and Resistance in a Multidrug-Resistant Clinical <em>Pseudomonas aeruginosa</em> Isolate Belonging to the MLST550 Clonal Complex
    Mechanisms of Resistance
    Uncoupled Quorum Sensing Modulates the Interplay of Virulence and Resistance in a Multidrug-Resistant Clinical Pseudomonas aeruginosa Isolate Belonging to the MLST550 Clonal Complex

    Pseudomonas aeruginosa is a prevalent and pernicious pathogen equipped with extraordinary capabilities both to infect the host and to develop antimicrobial resistance (AMR). Monitoring the emergence of AMR high-risk clones and understanding the interplay of their pathogenicity and antibiotic resistance is of paramount importance to avoid resistance dissemination and...

    Huiluo Cao, Tingying Xia, Yanran Li, Zeling Xu, Salim Bougouffa, Yat Kei Lo, Vladimir B. Bajic, Haiwei Luo, Patrick C. Y. Woo, Aixin Yan
  • Identification of FDA-Approved Drugs as Antivirulence Agents Targeting the <em>pqs</em> Quorum-Sensing System of <span class="named-content genus-species" id="named-content-1">Pseudomonas aeruginosa</span>
    Mechanisms of Action: Physiological Effects
    Identification of FDA-Approved Drugs as Antivirulence Agents Targeting the pqs Quorum-Sensing System of Pseudomonas aeruginosa

    The long-term use of antibiotics has led to the emergence of multidrug-resistant bacteria. A promising strategy to combat bacterial infections aims at hampering their adaptability to the host environment without affecting growth.

    Francesca D'Angelo, Valerio Baldelli, Nigel Halliday, Paolo Pantalone, Fabio Polticelli, Ersilia Fiscarelli, Paul Williams, Paolo Visca, Livia Leoni, Giordano Rampioni
  • Mechanisms of Resistance
    Modulation of Staphylococcus aureus Response to Antimicrobials by the Candida albicans Quorum Sensing Molecule Farnesol
    Eric F. Kong, Christina Tsui, Sona Kucharíková, Patrick Van Dijck, Mary Ann Jabra-Rizk
  • Experimental Therapeutics
    Pharmacological Inhibition of the Pseudomonas aeruginosa MvfR Quorum-Sensing System Interferes with Biofilm Formation and Potentiates Antibiotic-Mediated Biofilm Disruption
    Damien Maura, Laurence G. Rahme
  • Mechanisms of Resistance
    Antibiotics Promote Escherichia coli-Pseudomonas aeruginosa Conjugation through Inhibiting Quorum Sensing
    Yang Lu, Jianming Zeng, Linjing Wang, Kai Lan, Shunmei E, Lina Wang, Qian Xiao, Qiang Luo, Xianzhang Huang, Bin Huang, Cha Chen
  • Pharmacology
    Influence of rhlR and lasR on Polymyxin Pharmacodynamics in Pseudomonas aeruginosa and Implications for Quorum Sensing Inhibition with Azithromycin
    Zackery P. Bulman, Neang S. Ly, Justin R. Lenhard, Patricia N. Holden, Jürgen B. Bulitta, Brian T. Tsuji
  • Experimental Therapeutics
    Azithromycin-Ciprofloxacin-Impregnated Urinary Catheters Avert Bacterial Colonization, Biofilm Formation, and Inflammation in a Murine Model of Foreign-Body-Associated Urinary Tract Infections Caused by Pseudomonas aeruginosa
    Hina Saini, Anitha Vadekeetil, Sanjay Chhibber, Kusum Harjai

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