Background: Staphylococcus aureus is a major bacterial pathogen capable of causing a range of infections in humans from gastrointestinal disease, skin and soft tissue infections, to severe outcomes such as sepsis. Staphylococcal infections in humans can be frequent and recurring, with treatments becoming less effective due to the growing persistence of antibiotic resistant S. aureus strains. Due to the prevalence of antibiotic resistance, and the current limitations on antibiotic development, an active and highly promising avenue of research has been to develop strategies to specifically inhibit the activity of virulence factors produced S. aureus as an alternative means to treat disease.
Objective: In this review we specifically highlight several major virulence factors produced by S. aureus for which recent advances in antivirulence approaches may hold promise as an alternative means to treating diseases caused by this pathogen. Strategies to inhibit virulence factors can range from small molecule inhibitors, to antibodies, to mutant and toxoid forms of the virulence proteins.
Conclusion: The major prevalence of antibiotic resistant strains of S. aureus combined with the lack of new antibiotic discoveries highlight the need for vigorous research into alternative strategies to combat diseases caused by this highly successful pathogen. Current efforts to develop specific antivirulence strategies, vaccine approaches, and alternative therapies for treating severe disease caused by S. aureus have the potential to stem the tide against the limitations that we face in the post-antibiotic era.
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http://dx.doi.org/10.2174/1389450117666161128123536 | DOI Listing |
J Biomol Struct Dyn
February 2025
Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, India.
is one of the opportunistic pathogens that may cause serious health problems and can produce several virulence factors, which are responsible for various infections, particularly in immunocompromised patients. They are responsible for producing infections on indwelling medical devices by attaching on to them and forming a biofilm. Antibiofilm, antivirulence, and gene expression studies of biofilm treated with esters of flavonols were evaluated.
View Article and Find Full Text PDFBMC Microbiol
December 2024
Department of Clinical Microbiology, Zibo City Key Laboratory of Respiratory Infection and Clinical Microbiology, Zibo Municipal Hospital, Zibo, 255400, China.
Background: Klebsiella pneumoniae bloodstream infection (KP BSI) is a severe clinical condition characterized by high mortality rates. Despite the clinical significance, accurate predictors of mortality in KP BSI have yet to be fully identified.
Methods: A retrospective analysis was conducted on the clinical data of 90 cases of KP BSI.
Microb Pathog
December 2024
Department of Pharmacology and Toxicology, R Ken Coit College of Pharmacy, 1703 E Mabel St, Tucson AZ, 85721-0207, USA; The BIO5 Institute, The University of Arizona, Tucson, AZ 85721, USA; Biological Chemistry Program, Department of Chemistry and Biochemistry, College of Science & College of Medicine, The University of Arizona, Tucson, AZ 85721, USA; Department of Molecular & Cellular Biology, College of Science, The University of Arizona, Tucson, AZ 85721, USA. Electronic address:
Inteins are mobile elements within a host protein, with flanking exteins. Autocleavage of intein results in the fusion of exteins, leading to activation of protein. The presence of intein is species dependent.
View Article and Find Full Text PDFPol J Vet Sci
December 2024
Department of Customs Inspection and Quarantine, Shanghai Customs College, Shanghai, China.
, commonly known as , is a critical zoonotic pathogen that significantly reduces milk yield and product quality and poses a significant risk to public health. Although is increasingly recognised as a principal agent causing milkborne infections, research dedicated to this pathogen in dairy cattle has been less extensive than that of other pathogens. This study aimed to examine the antibiotic resistance profiles of derived from dairy cows and assess its pathogenicity using validated in vivo models.
View Article and Find Full Text PDFInt J Microbiol
December 2024
Key Laboratory of Birth Defects, Women's & Children's Health Care Hospital of Linyi, Linyi 276000, Shandong, China.
To understand the colonization status of Group B Streptococcus (GBS) in the reproductive tract of pregnant women in the Linyi region, the drug resistance, genotype distribution, and molecular epidemiological characteristics of GBS, and to explore the high-risk factors for GBS infection in late-stage pregnant women. A total of 3269 pregnant women at 35-37 weeks of gestation who visited the Obstetrics Department of Linyi Maternal and Child Health Hospital from January 2019 to December 2021 were selected as the study subjects. Vaginal and rectal swabs were collected for GBS culture.
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