How do cells regulate redox environment at the subcellular level?

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Most organisms live in an aerobic environment that subjects their cells to reactive oxygen species. Reactive oxygen species have been proposed to lead to ageing, and in many diseases the balance between oxidising and reducing conditions (the redox environment) is perturbed. This research will identify how different cellular structures sense and maintain this redox homeostasis, not just in the whole cell, but within the different organelles in the cell. The work will help identify which cell compartments and processes are affected in different disease states and provide a fundamental understanding of how cells coordinate their different organelles to maintain the balance between oxidising and reducing conditions.