Zygmunt W A, Tavormina P A
Department of Microbiology and Natural Products Research, Mead Johnson & Company, Evansville, Indiana.
Appl Microbiol. 1966 Nov;14(6):865-9. doi: 10.1128/am.14.6.865-869.1966.
Wide differences exist among the polyene antibiotics, nystatin, rimocidin, filipin, pimaricin, and amphotericin B, with reference to steroid interference with their antifungal activities against Candida albicans. Of the numerous steroids tested, ergosterol was the only one which effectively antagonized the antifungal activity of all five polyene antibiotics. The antifungal activities of nystatin and amphotericin B were the least subject to vitiation by the addition of steroids other than ergosterol, and those of filipin, rimocidin, and pimaricin were the most sensitive to interference. Attempts to delineate the structural requirements of steroids possessing polyene-neutralizing activity in growing cultures of C. albicans are discussed. The ultraviolet absorbance of certain antibiotic steroid combinations was also studied.
多烯抗生素(制霉菌素、龟裂杀菌素、菲律宾菌素、匹马菌素和两性霉素B)在甾体干扰其对白色念珠菌的抗真菌活性方面存在很大差异。在测试的众多甾体中,麦角固醇是唯一能有效拮抗所有五种多烯抗生素抗真菌活性的甾体。除麦角固醇外,添加其他甾体时,制霉菌素和两性霉素B的抗真菌活性受影响最小,而菲律宾菌素、龟裂杀菌素和匹马菌素的抗真菌活性对干扰最为敏感。本文讨论了在白色念珠菌生长培养物中描绘具有多烯中和活性的甾体结构要求的尝试。还研究了某些抗生素 - 甾体组合的紫外吸光度。