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Zijin Tougu Spray: A Breakthrough Treatment for Knee Osteoarthritis


Knee osteoarthritis (KOA) is a chronic degenerative disease characterized by the destruction of articular cartilage and inflammatory reactions. Currently, there is a lack of economical and effective clinical treatments for this condition. However, a potential solution may lie in Zijin Tougu (ZFTG) Spray, a novel treatment that has shown promising results in relieving joint pain and inflammation associated with KOA. In this article, we will explore the mechanism of action and therapeutic effects of ZFTG Spray on rabbits with KOA.

The Mechanism of Zijin Tougu Spray

In vivo Study: Rabbit KOA Model

To investigate the effect of ZFTG Spray on the TLR4/MyD88/NF-κB signaling pathway, researchers established a rabbit KOA model using the modified Videman method. This model mimics the degenerative changes observed in human KOA and provides a valuable platform for studying potential treatments.

In vitro Study: Chondrocytes and Pro-Inflammatory Phenotype

In parallel, researchers treated chondrocytes with IL-1β, a pro-inflammatory cytokine known to induce a pro-inflammatory phenotype in these cells. This allowed them to assess the effect of ZFTG Spray on the viability and inflammatory response of chondrocytes.

Effect on Inflammatory Markers

The levels of IL-1β, IL-6, TNF-α, and IFN-γ, which are key inflammatory markers in KOA, were assessed through histological observations and ELISA data. The results showed that ZFTG Spray significantly downregulated the levels of these inflammatory markers, both in the blood and chondrocyte samples.

Inhibition of TLR4/MyD88/NF-κB Signaling Pathway

Further analysis revealed that ZFTG Spray inhibited the TLR4/MyD88/NF-κB signaling pathway in rabbits with KOA. This pathway is known to play a crucial role in mediating inflammation and cartilage degeneration. The downregulation of TLR2, TLR4, MyD88, NF-κB, and NF-κB p65 proteins in the ZFTG-treated groups indicated the potential mechanism of action by which ZFTG Spray exerts its anti-inflammatory and chondroprotective effects.

Promotion of Chondrocyte Survival and Inhibition of Apoptosis

Notably, ZFTG Spray demonstrated the ability to promote the survival of chondrocytes and inhibit the apoptosis of inflammatory chondrocytes. This finding suggests that ZFTG Spray not only alleviates the degeneration of rabbit knee joint cartilage but also targets the underlying mechanisms of inflammation and cell death.

Therapeutic Effects of Zijin Tougu Spray

Alleviation of Cartilage Degeneration

The histological results obtained from the rabbit KOA model supported the therapeutic effects of ZFTG Spray in alleviating cartilage degeneration. The downregulation of inflammatory markers and inhibition of the TLR4/MyD88/NF-κB signaling pathway likely contributed to the preservation of cartilage integrity.

Inhibition of Inflammatory Response

By targeting the TLR4/MyD88/NF-κB signaling pathway, ZFTG Spray effectively suppressed the production of pro-inflammatory cytokines such as IL-1β, IL-6, TNF-α, and IFN-γ. This anti-inflammatory effect is critical in reducing joint pain and swelling associated with KOA.

Promotion of Chondrocyte Survival

The ability of ZFTG Spray to promote chondrocyte survival is of utmost importance in the treatment of KOA. By maintaining a healthy population of chondrocytes, the spray supports the regeneration and repair of damaged cartilage, ultimately improving joint function and mobility.


Zijin Tougu (ZFTG) Spray represents a breakthrough treatment for knee osteoarthritis (KOA). By inhibiting the TLR4/MyD88/NF-κB signaling pathway and reducing the levels of pro-inflammatory cytokines, ZFTG Spray effectively alleviates cartilage degeneration and inhibits the apoptosis of inflammatory chondrocytes. Furthermore, it promotes the survival of chondrocytes, supporting cartilage regeneration and repair. These findings provide a promising avenue for the development of effective and economical clinical treatments for KOA.


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