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Published on: February 16, 2015
Apoptosis - Triggering Effects: UVB-irradiation and Saccharomyces cerevisiae
1MSc, Department of Microbiology, Faculty of Basic Sciences, Islamic Azad University, Shahr-e-Qods Branch, Tehran, Iran.
Objectives:
The pathogenic disturbance of Saccharomyces cerevisiae is known as a rare but invasive nosocomial fungal infection. This survey is focused on the evaluation of apoptosis-triggering effects of UVB-irradiation in Saccharomyces cerevisiae.
Materials And Methods:
The well-growth colonies of Saccharomyces cerevisiae on Sabouraud Dextrose Agar (SDA) were irradiated within an interval of 10 minutes by UVB-light (302 nm). Subsequently, the harvested DNA molecules of control and UV-exposed yeast colonies were run through the 1% agarose gel electrophoresis comprising the luminescent dye of ethidium bromide.
Outcomes:
No unusual patterns including DNA laddering bands or smears were detected.
Conclusions:
The applied procedure for UV exposure was not effective for inducing apoptosis in Saccharomyces cerevisiae. So, it needs another UV-radiation protocol for inducing apoptosis phenomenon in Saccharomyces cerevisiae.
Insights
UVB irradiation did not induce apoptosis in Saccharomyces cerevisiae. Further research is needed to develop effective UV-radiation protocols for triggering apoptosis in this yeast species.
Area of Science:
- Mycology
- Molecular Biology
- Photobiology
Background:
- Saccharomyces cerevisiae can cause invasive nosocomial fungal infections.
- Understanding yeast apoptosis is crucial for developing targeted antifungal therapies.
Purpose of the Study:
- To evaluate the effectiveness of UVB irradiation in inducing apoptosis in Saccharomyces cerevisiae.
- To investigate the potential of photobiology in controlling pathogenic yeast.
Main Methods:
- Yeast colonies of Saccharomyces cerevisiae were exposed to UVB light (302 nm) for 10 minutes.
- DNA from control and irradiated samples was analyzed using agarose gel electrophoresis.
- Ethidium bromide was used as a luminescent dye to visualize DNA.
Main Results:
- UVB irradiation did not result in observable DNA laddering or smears.
- The applied UVB exposure protocol was ineffective in inducing apoptotic changes.
Conclusions:
- The current UVB-radiation protocol is insufficient to trigger apoptosis in Saccharomyces cerevisiae.
- New protocols are required to induce apoptosis in this yeast for potential therapeutic applications.
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