Scientists Find New Way to Heal Stubborn Wounds

Scientists just figured out why some wounds stay open for months, and the solution is surprisingly simple.

A team led by Nanyang Technological University in Singapore discovered that a common bacterium doesn't just resist antibiotics. It actively releases damaging molecules that paralyze skin cells and stop them from closing wounds.

The culprit is Enterococcus faecalis, a germ often found in diabetic foot ulcers. These chronic wounds affect 18.6 million people worldwide each year and are the leading cause of lower limb amputations. In Singapore alone, over 16,000 cases appear annually.

Researcher Aaron Tan found that this bacterium uses a special metabolic process to continuously pump out hydrogen peroxide. This reactive oxygen molecule floods nearby skin cells with stress, triggering a defensive response that freezes them in place.

When skin cells detect this oxidative stress, they activate their emergency survival mode. This protective response normally helps cells recover from damage, but in this case it backfires. The cells become so focused on surviving that they can't migrate into the wound to seal it.

The team tested their theory by creating a modified version of the bacteria that couldn't produce hydrogen peroxide. Those altered bacteria lost their ability to block healing entirely.

Then came the exciting part. When researchers treated stressed skin cells with catalase, a natural antioxidant enzyme that breaks down hydrogen peroxide, the cells bounced back. They regained their ability to move and started closing wounds again.

Why This Inspires

This discovery flips the script on how doctors might treat antibiotic resistant infections. Instead of fighting harder to kill stubborn bacteria, they can simply neutralize the harmful substances those bacteria produce.

Associate Professor Guillaume Thibault explains the breakthrough clearly. "Instead of targeting the source, we neutralize the actual cause of the chronic wounds," he said. The approach sidesteps antibiotic resistance entirely while restoring the body's natural healing ability.

The findings, published in Science Advances, point directly toward new treatments. Future wound care could combine existing therapies with antioxidants to help millions of people heal faster and avoid devastating complications.

For the one in three people with diabetes who will develop a foot ulcer in their lifetime, this research offers genuine hope.