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American Focus > Blog > Tech and Science > Jumping ‘Numts’ from Mitochondria Can Be Fast and Deadly
Tech and Science

Jumping ‘Numts’ from Mitochondria Can Be Fast and Deadly

Last updated: January 4, 2025 4:48 pm
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Jumping ‘Numts’ from Mitochondria Can Be Fast and Deadly
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Mitochondria, the powerhouses of our cells, are not only responsible for energy production but also play a crucial role in transmitting information about the cell’s state. These organelles contain their own set of genes known as mitochondrial DNA (mtDNA). Researchers have discovered that fragments of mtDNA, called nuclear mitochondrial DNA segments (numts), can jump into our chromosomes, altering our genetic code and potentially impacting our health.

Recent studies have shed light on the fast and deadly nature of numts. In a groundbreaking discovery in 2024, researchers found that numtogenesis, the process of creating new numts, occurs multiple times during a person’s lifespan. Numts were found to be concentrated in the brain, particularly in the prefrontal cortex, which is responsible for high-level cognitive functions. Surprisingly, individuals with more numts in their prefrontal cortex were found to have a shorter lifespan. This finding suggests that numts may influence longevity and overall health.

The release of mtDNA fragments into the cytoplasm surrounding the cell and their subsequent entry into the nucleus is a controlled process orchestrated by mitochondria. Numts can trigger inflammation and potentially contribute to aging, as seen in cancerous cells where numtogenesis is accelerated. Stress has been identified as a factor that can increase the rate of numtogenesis, with dysfunctional mitochondria leading to a higher accumulation of numts in cells.

Research has shown that cells accumulate new numts at a remarkable rate, particularly in response to stress and mitochondrial dysfunction. These findings highlight a new way in which mitochondria can impact our genetic makeup and overall health. By understanding the role of numts in influencing lifespan, we can gain insights into how mitochondria shape our biology and potentially contribute to the aging process.

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In conclusion, while mitochondria are essential for energy production and sustaining life, they also have a dark side in the form of numts that can impact our genetic integrity and influence our longevity. By unraveling the mysteries of numtogenesis, we can gain a deeper understanding of how mitochondria shape our health and well-being beyond their role as energy transformers.

TAGGED:deadlyFastJumpingMitochondriaNumts
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