As we age, our cells become less effective at cleaning and repairing themselves. This is partly because a process called autophagy becomes less active. Autophagy is a kind of cleanup system within the cell, whereby damaged components are broken down and reused. New research shows that increasing autophagy can help prevent acute kidney failure, a serious disease in which the kidneys suddenly stop functioning properly.
In a study involving mice, scientists demonstrated that young mice were better able to increase autophagy when exposed to a toxin that causes kidney problems. Older mice, however, were unable to properly initiate this response, making them more susceptible to kidney damage. Activating a protein called TFEB was shown to stimulate autophagy once again and thereby reduce kidney injury.
TFEB is important because it promotes degradation and cleanup processes in cells. By stimulating the protein with a special agent, the recovery of certain kidney functions appeared to progress better in the older mice involved in the research. This offers hope for future treatments for acute kidney failure, which is common particularly in the elderly and can have serious consequences.
These findings emphasise the importance of cellular maintenance and autophagy for healthy ageing. Supporting these processes can contribute to the preservation of kidney function and thereby overall health in later life.
Source: Josh Conway
