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Antimicrobial drugs, microorganisms, and phagocytes.
1Department of Infectious Diseases, University Hospital, Leiden, The Netherlands.
Reviews of Infectious Diseases
|March 1, 1989
Summary
Antimicrobial drugs significantly impact immune cell functions like chemotaxis, phagocytosis, and intracellular killing. Understanding these interactions is crucial for effective infection treatment and antibiotic development.
Area of Science:
- Pharmacology
- Immunology
- Microbiology
Background:
- The interplay between antimicrobial agents, microbes, and host phagocytic cells is complex.
- Interpreting study results requires critical assessment of methodologies.
- Existing data often limit definitive conclusions regarding drug-phagocyte-microbe interactions.
Purpose of the Study:
- To review and assess the literature on antimicrobial drug interactions with microorganisms and phagocytes.
- To postulate potential interactions based on available evidence.
- To highlight how different drug classes affect phagocyte functions.
Main Methods:
- Literature review and critical assessment of existing studies.
- Analysis of data on drug effects on bacterial chemoattractant release.
- Evaluation of drug impacts on granulocyte and monocyte/macrophage functions.
Main Results:
- Beta-lactam antibiotics increase bacterial chemoattractant release; protein synthesis inhibitors decrease it.
- Tetracyclines and bacitracin impair phagocytosis; trimethoprim and sulfamethoxazole hinder intracellular killing.
- Certain drugs enhance phagocyte antimicrobial activity, while others penetrate cells without increasing intracellular efficacy.
Conclusions:
- Antimicrobial drugs modulate key phagocyte functions, influencing treatment outcomes.
- Drug effects on bacterial surfaces and phagocyte activity vary by drug class.
- Synergistic interactions between drugs and phagocytes offer therapeutic potential.