Bacterial quorum-sensing (QS) can cause bacterial biofilm formation, thus induce antibiotic resistance and inflammation in chronic bacterial infections. A series of novel 4-arylamidobenzyl substituted 5-bromomethylene-2(5H)-furanones were designed by introducing of brominated furanones into rosiglitazone skeleton, and their potential application in the treatment of chronic bacterial infection was evaluated with regard to their disruption of quorum sensing and anti-inflammatory activities in vitro as well as in animal infection model. Compound 2e displayed both potent QS inhibitory activity and anti-inflammatory activity. Further mechanism studies revealed that the biological effects of 2e and 2k could be attributed, at least in part, to their interaction with PPARγ, and consequent suppression of the activation of NF-κB and MAPK cascades. Importantly, pretreatment with 2e significantly protects mice from lethal-dose LPS challenge. Thus, these data suggest that the dual effective derivative 2e may serve as a valuable candidate for the treatment of chronic bacterial infection.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ejmech.2017.11.085 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The antibacterial capabilities of alginate encapsulated lemon essential oil nanocapsules against multi-drug-resistant Acinetobacter baumannii.
Sci Rep
January 2025
Department of Biology, Faculty of Basic Sciences, Islamic Azad University, Shahrekord Branch, Shahrekord, Iran.
Controlling microbial pollutants is a significant public health concern as they cause several chronic microbial infections and illnesses. In recent years, essential oils (EOs) have become intriguing alternatives for synthetic antimicrobials due to their biodegradability, natural source extraction, and strong antibacterial properties. The bactericidal properties of alginate containing lemon essential oil were examined in this investigation.
View Article and Find Full Text PDFBifunctional modified bacterial cellulose-based hydrogel through sequence-dependent crosslinking towards enhanced antibacterial and cutaneous wound healing.
Int J Biol Macromol
January 2025
Department of Microbiology, College of Life Science, Key Laboratory for Agriculture Microbiology, Shandong Agricultural University, Tai'an 271018, PR China; School of Pharmacy, the Key Laboratory of Medical Antibacterial Materials of Shandong Province, Binzhou Medical University, Yantai 264003, PR China. Electronic address:
Chronic wounds caused by microbial infection have emerged as a major challenge on patients and medical health system. Bacterial cellulose (BC) characterized by its excellent biocompatibility and porous network, holds promise for addressing complex wound issues. However, lack of inherent antibacterial activity and cross-linking sites in the molecular network of BC have constrained its efficacy in hydrogel design and treatment of bacterial-infected wounds.
View Article and Find Full Text PDFMultifunctional hyaluronic acid microneedle patch enhances diabetic wound healing in diabetic infections.
Int J Biol Macromol
January 2025
Department of Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China; Department of Emergency, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China. Electronic address:
Diabetic wounds often exhibit a chronic non-healing state due to the combined effects of multiple factors, including hyperglycemia, impaired angiogenesis, immune dysfunction, bacterial infection, and excessive oxidative stress. Despite the availability of various therapeutic strategies, effectively managing the complex and prolonged healing process of diabetic infected wounds remains challenging. In this study, we combined the natural antidiabetic drug lipoic acid (LA) with the RADA16-YIGSR (RY) peptide obtained through solid-phase synthesis, utilizing reversible hydrogen bonds and coordination bonds for binding.
View Article and Find Full Text PDFMeat intake in relation to composition and function of gut microbiota.
Clin Nutr
January 2025
Molecular Epidemiology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden; Preventive Medicine Division, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, United States; School of Natural Sciences, Technology and Environmental Studies, Södertörn University Sweden, Sweden. Electronic address:
Objective: Meat intake is suggested to affect gut microbiome composition and the risk of chronic diseases. We aimed to identify meat-associated gut microbiome features and their association with host factors.
Design: Gut microbiota species were profiled by deep shotgun metagenomics sequencing in 9669 individuals.
Gentamicin ointment effect on hard-to-heal wounds: a case series.
J Wound Care
January 2025
Jobst Vascular Institute, ProMedica Health Network, Wound Care Program, Toledo, Ohio, US.
Objective: The presence of microorganisms in a wound may lead to the development of pathologically extensive inflammation, and either delay or prevent the healing of hard-to-heal (chronic) wounds. The aim of this case series is to explore the use of topical gentamicin ointment, an aminoglycoside with activity against aerobic Gram-negative bacteria, as an option to address hard-to-heal wounds.
Method: We present a retrospective case series of patients with hard-to-heal wounds of varying pathophysiologies treated with topical gentamicin.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!