Mitochondrial-Nuclear Crosstalk: A Central Axis In Alzheimer’S Disease

Disrupted communication between the mitochondria and the cell’s nucleus is a key, often overlooked, factor in the development and progression of Alzheimer’s disease, influencing how cells manage energy, respond to stress, and survive.

Beyond the well-known amyloid plaques and tau tangles, a deeper issue in Alzheimer’s disease involves a breakdown in the vital communication system within our cells. This system, known as mitochondrial-nuclear crosstalk, is the constant dialogue between mitochondria—the tiny powerhouses that generate energy for our cells—and the nucleus, which contains our genetic material and controls cell functions.

This cellular conversation is crucial for maintaining energy balance, responding to stress, and ensuring cell survival. However, in Alzheimer’s, this communication becomes impaired. This disruption leads to problems with how mitochondria function, difficulties in managing proteins (a process called proteostasis), changes in how cells use energy, and increased inflammation.

Emerging evidence suggests that these communication breakdowns might occur very early in the disease process, potentially even before the characteristic plaques and tangles appear, indicating they could be fundamental drivers of the disease. Understanding these intricate pathways opens up new avenues for potential treatments, such as therapies aimed at restoring this essential cellular dialogue.

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Source: link to paper