Peer-Reviewed Journal Details
Mandatory Fields
O'Keeffe, J;Doyle, S;Kavanagh, K
2003
December
Journal of Pharmacy and Pharmacology
Exposure of the yeast Candida albicans to the anti-neoplastic agent adriamycin increases the tolerance to amphotericin B
Published
5 ()
Optional Fields
ANTIFUNGAL DRUG-RESISTANCE FUNGAL-INFECTIONS PATHOGENIC FUNGI CELL-DEATH IN-VITRO FLUCONAZOLE SUSCEPTIBILITY PROPHYLAXIS APOPTOSIS
55
1629
1633
Cancer patients experience a high incidence of fungal infections due to their immuno-suppressed condition. This work has investigated the interaction of an anti-neoplastic agent, adriamycin (doxorubicin), with the yeast Candida albicans and examined whether this drug altered the susceptibility of the yeast to amphotericin B - an anti-fungal agent used for the treatment of systemic fungal infections in cancer patients. Exposure to adriamycin for 24 h increased the growth of C. albicans and increased the tolerance to amphotericin B by a small, but statistically significant, extent. Growth in adriamycin-supplemented medium suppressed the respiration rate of C. albicans, which resulted in a decrease in the ergosterol content of the fungal cell membrane. The tolerance to amphotericin B was lost after exposure to adriamycin for 48 h, which coincided with a restoration in the respiration rate and the ergosterol content of the fungal cell membrane. This work demonstrated that short-term exposure (24 h) to adriamycin increased the tolerance of C. albicans for amphotericin B, which may be mediated by a decrease in the ergosterol content as a result of an adriamycin-induced disruption of oxidative phosphorylation.
LONDON
0022-3573
10.1211/0022357022359
Grant Details