complex (MAC) species are the most commonly isolated nontuberculous mycobacteria to cause pulmonary infections worldwide. The lengthy and complicated therapy required to cure lung disease due to MAC is at least in part due to the phenomenon of antibiotic tolerance. In this review, we will define antibiotic tolerance and contrast it with persistence and antibiotic resistance. We will discuss physiologically relevant stress conditions that induce altered metabolism and antibiotic tolerance in mycobacteria. Next, we will review general molecular mechanisms underlying bacterial antibiotic tolerance, particularly those described for MAC and related mycobacteria, including , with a focus on genes containing significant sequence homology in MAC. An improved understanding of antibiotic tolerance mechanisms can lay the foundation for novel approaches to target antibiotic-tolerant mycobacteria, with the goal of shortening the duration of curative treatment and improving survival in patients with MAC.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7554310 | PMC |
| http://dx.doi.org/10.3389/fmicb.2020.573983 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Major Systemic Lupus Erythematosus Exacerbation after Severe Clostridium Difficile Infection: A Case Report.
Mediterr J Rheumatol
December 2024
First Department of Internal Medicine.
Introduction: Systemic lupus erythematosus (SLE) is a multisystem autoimmune disease presenting with remission and flares. Relapses may be triggered by various factors, with infections being one of the most common. The following case is the first clostridium difficile infection (CDI)-induced SLE flare that resulted in involvement of organs not previously affected in patient's history before, such as lupus nephritis.
View Article and Find Full Text PDFPoor efficacy of the combination of clarithromycin, amikacin, and cefoxitin against Mycobacterium abscessus in the hollow fiber infection model.
Ann Clin Microbiol Antimicrob
January 2025
Laboratoire des Mycobactéries, Institut des Agents Infectieux, Laboratoire de Biologie Médicale Multi-Site, Hôpital de la Croix Rousse, Hospices Civils de Lyon, Lyon, France.
Background: Mycobacterium abscessus (MABS) causes difficult-to-treat pulmonary and extra-pulmonary infections. A combination therapy comprising amikacin, cefoxitin, and a macrolide agent is recommended, but its antimicrobial activity and clinical efficacy is uncertain. Inducible resistance to macrolides (macrolides-iR) has been associated with poor clinical response in pulmonary infections, whilst for extra-pulmonary infections data are scarce.
View Article and Find Full Text PDFPilin antigenic variants impact gonococcal lifestyle and antibiotic tolerance by modulating interbacterial forces.
PLoS Biol
January 2025
Institute for Biological Physics, University of Cologne, Cologne, Germany.
Type 4 pili (T4P) are multifunctional filaments involved in adhesion, surface motility, biofilm formation, and horizontal gene transfer. These extracellular polymers are surface-exposed and, therefore, act as antigens. The human pathogen Neisseria gonorrhoeae uses pilin antigenic variation to escape immune surveillance, yet it is unclear how antigenic variation impacts most other functions of T4P.
View Article and Find Full Text PDFEffectiveness of clindamycin-based exposure strategies in experimental mature staphylococcal biofilms.
Microbiol Spectr
January 2025
Center for Infectious Diseases, Lab of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands.
Unlabelled: Due to increasing antimicrobial resistance and side effects caused by current standard antimicrobial regimens used for treatment of prosthetic joint infection (PJI), alternative options are urgently needed. We aimed to investigate the effect of clindamycin in different exposure strategies against in an mature biofilm model. In short, 7-day biofilms were generated on polystyrene plates and titanium-aluminum-vanadium discs using a clinical PJI isolate.
View Article and Find Full Text PDFPhenotypic and genomic characterization of Levilactobacillus brevis YT108: a potential probiotic strain capable of metabolizing xylo-oligosaccharides.
Lett Appl Microbiol
January 2025
Panxi Crops Research and Utilization Key Laboratory of Sichuan Province, Xichang University, Liangshan, China.
Levilactobacillus brevis YT108, identified for its ability to metabolize prebiotic xylo-oligosaccharides (XOS), emerges as a candidate for probiotic use in synbiotic food formulations. This study aimed to investigate the metabolic and genomic traits associated with XOS metabolism in YT108 and to assess its probiotic attributes through whole genome sequencing and in vitro assays. Strain YT108 exhibited robust growth kinetics on XOS as the sole carbon source, with a growth profile comparable to that on glucose, achieving a pH reduction to 4.
View Article and Find Full Text PDFWant 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!