Neutrophil Toxicity of Amphotericin B

Overview

Journal Antimicrob Agents Chemother

Publisher American Society for Microbiology

Specialty Pharmacology

Date 1977 Aug 1

PMID 900919

Citations 9

Authors

C J Chunn

P R STARR

D N Gilbert

Affiliations

Soon will be listed here.

Abstract

The toxicity of amphotericin B (AmB) for neutrophils and the protective effect of serum cholesterol were investigated. Neutrophils were exposed in vitro to varying concentrations of AmB. As judged by trypan blue exclusion, neutrophil viability decreased by 40% (P < 0.001) within 30 min of incubation in sterol-free buffer containing 5 mug of AmB per ml. In the presence of 4 mg of cholesterol per 100 ml in buffer, the AmB concentration could be increased to 50 mug/ml before significant (P < 0.01) neutrophil toxicity occurred. Hexose monophosphate shunt activity of neutrophils incubated in serum or cholesterol-containing buffer with 10 mug of AmB per ml was normal. These results suggest that serum contains a protective factor, probably cholesterol, which protects neutrophils in vitro from the toxic effects of AmB.

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