Abstract
Amphotericin B is an antifungal drug associated with side effects such as fever and chills, symptoms which may be mediated by pro-inflammatory cytokines such as interleukin-1beta (IL-1beta) and tumour necrosis factor-alpha (TNFalpha). We assessed the capacity of amphotericin B to modulate production of these pro-inflammatory cytokines as well as the anti-inflammatory IL-1 receptor antagonist (IL-1ra), induced by LPS, heat-killed Candida albicans or Staphylococcus aureus. The results of the present study show that amphotericin B slightly increased the production of pro-inflammatory cytokines by human mononuclear cells (PBMC), whereas the production of the anti-inflammatory cytokine IL-1ra was significantly inhibited. This results in a shift towards pro-inflammatory cytokine production, as indicated by a decreased IL-1ra/IL-1beta ratio. Semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR) indicated that levels of IL-1beta and TNFalpha mRNA were increased. In conclusion, amphotericin B is able to cause a shift towards pro-inflammatory cytokine production by human PBMC. This may explain the side effects, such as fever and chills, observed after treatment of patients with amphotericin B.
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