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Nanomechanics of Drug-target Interactions and Antibacterial Resistance Detection
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Vancomycin: understanding its past and preserving its future

Donald P Levine1

  • 1Department of Medicine, Wayne State University, Detroit, MI 48201, USA. dlevine@med.wayne.edu

Southern Medical Journal
|March 28, 2008
PubMed

Insights

Increased vancomycin use led to vancomycin-resistant enterococcus and Staphylococcus aureus. Prudent vancomycin use and infection control are crucial to preserve its efficacy against emerging resistant strains.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Pharmacology

Background:

  • The widespread use of vancomycin since the 1980s for treating antibiotic-associated colitis and methicillin-resistant Staphylococcus aureus (MRSA) has driven the emergence of resistance.
  • Vancomycin-resistant enterococcus (VRE) has appeared, leading to isolated cases of vancomycin-resistant Staphylococcus aureus.
  • Heteroresistant MRSA strains, which are difficult to detect, pose a significant clinical challenge.

Purpose of the Study:

  • To highlight the link between vancomycin usage and the rise of antibiotic resistance.
  • To emphasize the importance of appropriate vancomycin use and infection control measures.
  • To discuss the potential role of alternative antibiotics in managing vancomycin-resistant infections.

Main Methods:

  • Literature review and analysis of historical antibiotic usage trends.
  • Examination of the mechanisms and clinical implications of vancomycin resistance.
  • Assessment of emerging resistance patterns in Staphylococcus aureus and enterococcus.

Main Results:

  • Vancomycin use is directly correlated with the increased prevalence of vancomycin resistance in enterococcus and Staphylococcus aureus.
  • Heteroresistance in MRSA presents a diagnostic and therapeutic challenge.
  • The efficacy of vancomycin is threatened by escalating resistance.

Conclusions:

  • Judicious vancomycin use and strict adherence to infection control protocols are essential to mitigate the development of vancomycin resistance.
  • Alternative antibiotics like linezolid, quinupristin/dalfopristin, daptomycin, and tigecycline may become increasingly important for treating infections caused by vancomycin-resistant pathogens.
  • Preserving the future efficacy of vancomycin requires a concerted effort to minimize resistance development.

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