A research team has revealed the role of an important protein in protecting cartilage, which may represent a major step towards developing an effective treatment for Osteoarthritis ( Joint roughness ), one of the most common diseases, especially among the elderly.
The disease is characterized by the gradual erosion of the cartilage that acts as a cushion between the bones within the joints, leading to pain and decreased mobility.
Current treatments do not address the root cause
Table of Contents
- Current treatments do not address the root cause
- SHP protein: an essential protective factor for cartilage
- Low protein is associated with worsening of the disease
- Experimental results: direct effect on pain and damage
- How does SHP protect cartilage?
- Gene therapy trial with promising results
- A step towards effective treatment in the future
Despite the spread of the disease, currently available treatments focus on relieving pain only, without addressing the underlying cause, which is cartilage deterioration.
Treatment options capable of stopping or reversing this deterioration are still very limited, which makes this discovery of great importance.
SHP protein: an essential protective factor for cartilage
Joint osteoarthritis (Image source: Chungnam National University Hospital)
Researchers have found that a protein known as SHP (NR0B2) plays a crucial role in protecting cartilage from damage.
The study was led by researchers from the Korea Research Institute of Bioscience and Biotechnology in collaboration with Chungnam National University Hospital, and published in the journal Nature Communications.
Low protein is associated with worsening of the disease
Analyzes have shown that SHP levels decrease significantly as the disease progresses, both in patients’ tissues and in animal models.
This suggests that loss of this protein contributes to accelerating cartilage deterioration.
Experimental results: direct effect on pain and damage
Experiments showed that:
Mice lacking the SHP protein experienced more severe pain and faster cartilage damage
Re-boosting protein levels within the joints contributed to reducing damage and improving joint function
These results confirm the direct protective role of this protein.
How does SHP protect cartilage?
The study revealed that the SHP protein works to inhibit enzymes responsible for breaking down cartilage, most notably:
It also controls an important cell signaling pathway known as the NF-κB pathway, which helps maintain cartilage integrity and prevent its deterioration.
Gene therapy trial with promising results
The researchers also tested the possibility of using this protein as a treatment, by introducing the gene responsible for it into the joints using a viral vector.
The results showed that:
Just one dose was enough to produce a long-lasting effect
Cartilage damage is significantly reduced
The level of pain improves even in advanced cases
A step towards effective treatment in the future
This discovery represents an important advance in understanding the mechanism of development of osteoarthritis, and may pave the way for the development of treatments that target the root cause of the disease rather than simply alleviating the symptoms.
The researchers believe that targeting the SHP protein may be a promising strategy to slow or even prevent disease progression.
This research provides new hope for millions of patients around the world, by shedding light on a biological mechanism that can be exploited to develop more effective and sustainable treatments for osteoarthritis.
