Response of Saccharomyces cerevisiae strains to antineoplastic agents

• Published in: Journal of Applied Bacteriology Vol. 79; no. 4; pp. 379 - 383
• Main Authors: Delitheos, A., Karavokyros, I., Tiligada, E.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01-10-1995
• Subjects: Antineoplastic Agents - pharmacology; Cisplatin - pharmacology; Doxorubicin - pharmacology; Fluorouracil - pharmacology; Methotrexate - pharmacology; Microbial Sensitivity Tests; Saccharomyces cerevisiae; Saccharomyces cerevisiae - drug effects
• ISSN: 0021-8847; 2056-5232
• DOI: 10.1111/j.1365-2672.1995.tb03151.x

The effect of several antineoplastic agents on Saccharomyces cerevisiae strains has been investigated. Minimum inhibitory concentration (MIC), minimum cytotoxic concentration (MCC) and median effective concentration (EC50) were determined to identify strains with inherent sensitivity to the agents tested. Several strains proved to be sensitive to the antimetabolites 5‐fluorouracil and methotrexate as well as to doxorubicin and cis‐platine. On the contrary m‐amsacrine, procarbazine, vinca alcaloids, melphalan and hydroxyurea were inactive at concentrations up to 400 μg ml −1. The strain ATCC 2366, the most relatively sensitive to the agents tested, was used for studying the effect of treatment duration and of drug concentration on cell survival. Methotrexate and cis‐platine, which according to MIC and MCC tests seemed ineffective for this strain, reduced survival significantly after 6 h of treatment. A correlation of the shape of the survival curves with MIC and MCC values was attempted.