Scientists Identify Key Protein Behind Aging — Potential Path to Slowing the Process

Seoul, South Korea:A groundbreaking study by researchers at **Korea University College of Medicine** may have unlocked a major piece of the puzzle behind one of humanity’s oldest questions: **Why do we age?**

Scientists have identified a **protein named ReHMGB1** that appears to **accelerate aging** by silently transmitting damaging signals throughout the body via the bloodstream.

### The Silent Messenger of Aging

According to the study, **ReHMGB1** becomes increasingly active as we age. It **triggers cellular processes** that render cells permanently **inactive** — a hallmark of biological aging — and sends **inflammatory signals** that can contribute to tissue damage, especially during injury or illness.

> “This protein doesn’t just act locally — it circulates through the blood, affecting various organs and accelerating age-related degeneration,” the researchers stated.

### Blocking the Signal to Slow Aging

One of the study’s most promising findings is the potential to **block or control** the protein’s signaling. If successful, this could **slow cellular decline** and potentially extend **healthy lifespan**.

The protein also plays a role in the **growth and repair** of different types of human cells. In lab experiments conducted on mice with muscle injuries, researchers found that **manipulating ReHMGB1**:

* **Accelerated muscle repair**
* **Improved physical performance**
* **Reduced signs of cellular aging**
* **Lowered inflammation levels**

These results suggest that the protein is not inherently harmful — in fact, it plays a **dual role**: signaling the body to repair damage, but also contributing to **chronic inflammation and cellular senescence** when uncontrolled.

### What’s Next?

The next phase of the research will focus on **interfering with the protein’s activity** to see if age-related diseases can be prevented or mitigated.

> “By blocking ReHMGB1, we were able to restore tissue regeneration, which gives us hope that this protein could be a potential **therapeutic target** for treating age-related conditions,” said the study authors.

However, they caution that much more research is needed to fully understand the protein’s functions, especially given its **vital role in alerting the body to tissue damage**.

The study was published in the journal **Metabolism**, marking a significant step forward in the global quest to understand — and possibly **slow down** — the aging process.