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- 深澤 万左友
- 住友製薬株式会社 開発本部 現 大日本住友製薬株式会社 開発本部
書誌事項
- タイトル別名
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- Liposomal Amphotericin B
抄録
Liposomal amphotericin B (AmBisome™) is a DDS (drug delivery system) formulation of amphotericin B (AMPH-B), and has been developed in an attempt to reduce the toxicity of AMPH-B while retaining its therapeutic efficacy. AMPH-B has been the “gold standard” of antifungal therapy over the past four decades. It has a broad spectrum of fungicidal activity against a number of clinically important pathogens including Aspergillus and Candida. The mechanism of action of AMPH-B involves binding to ergosterol, the principal sterol in fungal cell membranes. Binding to ergosterol causes an increase in fungal membrane permeability, electrolyte leakage, and cell death. AMPH-B has affinity for cholesterol in mammalian membranes, which leads to severe side-effects including kidney damage.<br>AmBisome is a unilamellar vesicle composed of AMPH-B and phospholipid. Upon administration, AmBisome remains intact in the blood and distributes to the tissues where fungal infection may occur, and is disrupted after attachment to the outside of fungal cells, resulting in fungal cell death.<br>AmBisome and AMPH-B show similar in vitro and in vivo antifungal activity and clinical efficacy. However, AmBisome has less infusion-related toxicity and nephrotoxicity than AMPH-B.
収録刊行物
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- 日本医真菌学会雑誌
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日本医真菌学会雑誌 46 (4), 229-231, 2005
日本医真菌学会