A novel method for telomere length detection in fission yeast

Area of Science:

• Molecular Biology
• Genetics
• Cell Biology

Background:

• Telomere length is crucial for cellular aging and organismal lifespan in mammals.
• Fission yeast serves as a powerful model for studying telomere maintenance mechanisms.
• Understanding telomere dynamics is key to developing treatments for aging-related diseases.

Purpose of the Study:

• To develop and validate a novel, simple, and reproducible method for measuring telomere length in fission yeast.
• To investigate the effects of cisplatin and caffeine on telomere length using the new method.
• To establish the standard PCR/ImageJ assay as a reliable tool for drug screening.

Main Methods:

• Hydroxyurea-synchronized fission yeast cells were treated with cisplatin (62 µM) or caffeine (8.67 mM) for 2 hours.
• Telomere length was assessed using quantitative polymerase chain reaction (qPCR) as a reference method.
• A newly developed standard PCR/ImageJ assay evaluated telomere length based on amplified PCR band intensity.

Main Results:

• Both qPCR and the standard PCR/ImageJ assay demonstrated a significant decrease in telomere length upon cisplatin treatment.
• The standard PCR/ImageJ assay revealed a notable telomere lengthening in response to caffeine treatment.
• The results confirm the accuracy and efficiency of the standard PCR/ImageJ assay.

Conclusions:

• The standard PCR/ImageJ assay is a reliable and efficient method for assessing telomere length dynamics in fission yeast.
• This assay can be utilized as a rapid screening tool for evaluating the impact of potential chemotherapeutic and anti-aging drugs on telomere length.
• The study provides insights into the differential effects of cisplatin and caffeine on telomere maintenance.