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Published on: April 18, 2016
Drug-induced apoptosis in yeast
B Almeida1, A Silva, A Mesquita
1Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Campus de Gualtar, Braga, Portugal.
Abstract:
In order to alter the impact of diseases on human society, drug development has been one of the most invested research fields. Nowadays, cancer and infectious diseases are leading targets for the design of effective drugs, in which the primary mechanism of action relies on the modulation of programmed cell death (PCD). Due to the high degree of conservation of basic cellular processes between yeast and higher eukaryotes, and to the existence of an ancestral PCD machinery in yeast, yeasts are an attractive tool for the study of affected pathways that give insights into the mode of action of both antitumour and antifungal drugs. Therefore, we covered some of the leading reports on drug-induced apoptosis in yeast, revealing that in common with mammalian cells, antitumour drugs induce apoptosis through reactive oxygen species (ROS) generation and altered mitochondrial functions. The evidence presented suggests that yeasts may be a powerful model for the screening/development of PCD-directed drugs, overcoming the problem of cellular specificity in the design of antitumour drugs, but also enabling the design of efficient antifungal drugs, targeted to fungal-specific apoptotic regulators that do not have major consequences for human cells.
Insights
Yeasts serve as a valuable model for studying programmed cell death (PCD) pathways, aiding in the development of novel anticancer and antifungal drugs by examining drug-induced apoptosis.
Area of Science:
- * Molecular Biology and Pharmacology
- * Cellular Biology and Drug Discovery
Background:
- * Drug development is a critical research area focused on combating diseases like cancer and infections.
- * Programmed cell death (PCD) modulation is a key mechanism in designing effective anticancer and antifungal drugs.
- * Yeasts offer a conserved cellular machinery for studying PCD pathways relevant to higher eukaryotes.
Purpose of the Study:
- * To explore the utility of yeast as a model organism for studying drug-induced apoptosis.
- * To investigate the mechanisms of drug action on PCD pathways in yeast.
- * To assess the potential of yeast-based models for developing targeted anticancer and antifungal therapies.
Main Methods:
- * Review of existing literature on drug-induced apoptosis in yeast.
- * Analysis of conserved PCD pathways between yeast and mammalian cells.
- * Examination of reactive oxygen species (ROS) generation and mitochondrial function alterations.
Main Results:
- * Anticancer drugs induce apoptosis in yeast via ROS generation and altered mitochondrial functions, similar to mammalian cells.
- * Yeast models demonstrate conserved mechanisms of drug-induced apoptosis.
- * Fungal-specific apoptotic regulators can be targeted for antifungal drug development.
Conclusions:
- * Yeast is a powerful model for screening and developing PCD-directed drugs.
- * Yeast models can help overcome cellular specificity issues in anticancer drug design.
- * Targeting fungal-specific apoptotic pathways in yeast can lead to effective antifungal drugs with minimal impact on human cells.
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