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Clin Infect Dis. 1994 Nov;19(5):926-30.

Tissue-directed antibiotics and intracellular parasites: complex interaction of phagocytes, pathogens, and drugs.

Author information

1
Division of Infectious Diseases, University of Virginia Health Sciences Center, University of Virginia, Charlottesville.

Abstract

Antibiotics with significant tissue penetration and intracellular accumulation may have an important role in the treatment of intracellular infections. However, clinically relevant evaluation of these antibiotics in vitro remains a challenge. Measurement of serum drug concentrations or serum bactericidal levels may not be relevant. Measurement of intracellular drug concentrations may be simplistic, given the complex interaction of drug, microbe, and phagocyte. The effect of an antibiotic on an intracellular organism depends on the drug's penetration into the cell, its intracellular location, its metabolism within the cell, and its antimicrobial activity within the organism's specific intracellular microenvironment. Legionella micdadei, an intracellular parasite that grows within monocytes, has been used for the evaluation of drugs like azithromycin that are concentrated intracellularly.

PMID:
7893881
DOI:
10.1093/clinids/19.5.926
[Indexed for MEDLINE]

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