Scientists Discover Naked Mole Rat Gene That Helped Mice Live Longer; Could Human Trials Be Next?

Scientists studying one of the world's strangest animals may have taken an important step toward understanding how humans could one day live healthier and longer lives.

Researchers have successfully transferred a special longevity-related gene from naked mole rats into mice and found that the modified mice not only lived longer but also stayed healthier as they aged.

The groundbreaking research, carried out by scientists at the University of Rochester, has raised hopes that similar biological mechanisms could eventually help slow aging and reduce age-related diseases in humans.

Why Naked Mole Rats Fascinate Scientists

Naked mole-rat may not look impressive at first glance, but they are considered one of the most fascinating animals in aging research.

Although they are roughly the size of ordinary mice, naked mole rats can live up to 41 years - nearly ten times longer than most rodents of similar size.

What makes them even more unusual is that they rarely develop cancer and appear highly resistant to many age-related diseases, including arthritis, cardiovascular problems and neurodegeneration.

For years, scientists have tried to understand what makes these animals biologically different from other mammals.

The Special Substance Behind Their Longevity

Researchers focused on a substance called high molecular weight hyaluronic acid, also known as HMW-HA. Naked mole rats naturally produce around ten times more HMW-HA than mice and humans.

Scientists believe this substance plays a major role in protecting the animals against cancer, chronic inflammation and tissue damage linked to aging. Earlier studies showed that when HMW-HA was removed from naked mole rat cells, the cells became more likely to form tumours.
This led researchers to ask an important question: could this protective mechanism work in other animals too?

Scientists Transferred The Gene Into Mice

To test the theory, the research team genetically modified mice using a naked mole rat gene called hyaluronan synthase 2.

This gene helps produce the protein responsible for generating HMW-HA.
Although humans and mice also carry versions of the same gene, the naked mole rat version appears to be far more active and efficient.

After the gene was introduced into mice, the animals began producing higher levels of the protective molecule across different tissues.

The results surprised researchers.

Mice Lived Longer And Healthier Lives

The genetically modified mice showed several health benefits compared to normal mice.
The animals developed stronger resistance against cancer, including spontaneous tumours and chemically induced skin cancer.

They also showed lower levels of chronic inflammation, healthier gut function and better overall physical condition as they aged.

Most importantly, the mice experienced a measurable increase in lifespan.
The study found that the modified mice lived around 4.4 per cent longer on average than ordinary mice.

While this increase may appear small, scientists say the bigger breakthrough is that a longevity mechanism from one mammal was successfully transferred into another species.

Why The Discovery Matters

According to researcher Vera Gorbunova, the study acts as proof that biological mechanisms responsible for long life in one species may eventually be adapted to improve lifespan and health in other mammals.

The research was published in the scientific journal Nature in 2023.
Scientists believe the findings could open new pathways in anti-aging medicine and disease prevention research.

Instead of only trying to treat diseases after they appear, researchers are increasingly focusing on slowing down the biological aging process itself.

Researchers Are Now Exploring Human Applications

The scientists behind the study are now trying to understand how the same protective effects could potentially be adapted for humans.
Researchers say there may be two possible approaches.

One option is to slow down the breakdown of HMW-HA inside the body. Another possibility is increasing its production naturally.

According to the team, molecules that slow the degradation of hyaluronic acid are already being tested in pre-clinical trials.

However, scientists caution that translating animal research into human treatment is a long and complex process that may take many years.

New Research Offers More Clues

The naked mole rat continues to reveal new biological secrets.
A more recent 2025 study published in Science identified another possible longevity mechanism involving a protein known as cGAS.
In humans and ordinary mice, cGAS can interfere with certain types of DNA repair. But in naked mole rats, the protein appears to help cells repair DNA damage more effectively.
Scientists believe this improved DNA repair system may also contribute to the animal's remarkable resistance to aging.

No 'Magic Cure' Yet, But A Major Step Forward

Experts say there is still no simple "fountain of youth" or guaranteed anti-aging cure.
However, discoveries like this are helping scientists better understand the biological causes of aging and age-related disease.

Researchers believe long-lived animals such as naked mole rats may hold valuable clues for developing future treatments that improve human healthspan - the number of healthy years people live - rather than simply increasing lifespan.

For now, the study represents one of the clearest examples yet that nature's own longevity strategies may someday help humans live healthier and possibly longer lives.