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Updated: Oct 6, 2025

Author Spotlight: Transmitochondrial Cybrid Generation Using Cancer Cell Lines
Published on: March 17, 2023
Genetic interactions of mitochondrial sirtuins in brain tumorigenesis
Maria Fazal Ul Haq1, Mahmood Akhtar Kayani1, Taaha Arshad1
1Cancer Genetics & Epigenetics Research Group, Department of Biosciences, COMSATS University, Islamabad, Pakistan.
Abstract:
Purpose: The present study was designed to understand the role of expression variations of mitochondrial imported sirtuins in brain tumorigenesis. The expression levels of mitochondrial imported sirtuins were further analyzed for biomarker potential. Methods: Samples from 200 brain tumors and 200 healthy control tissues were used for expression analysis using quantitative PCR and for DNA damage using LORD-Q analysis. Results: Significant deregulation of SIRT3 (p = 0.002), SIRT4 (p = 0.03) and SIRT5 (p = 0.006) was observed in brain tumors versus controls. Co-expression analysis showed a significant correlation between the mitochondrial imported sirtuins versus apoptotic genes. LORD-Q analysis showed a significantly increased frequency of lesions/10 kb of mitochondrial imported sirtuins (p < 0.0001) in brain tumor tissue versus controls. Conclusion: The present study showed a correlation between variations of mitochondrial imported sirtuins and increased brain tumor risk.
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