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  4. Apigenin inhibits fibrous scar formation after acute spinal cord injury through TGFβ/SMADs signaling pathway

Apigenin inhibits fibrous scar formation after acute spinal cord injury through TGFβ/SMADs signaling pathway

CNS Neuroscience & Therapeutics, 2022 · DOI: 10.1111/cns.13929 · Published: July 15, 2022

Spinal Cord InjuryPharmacologyNeurology

Simple Explanation

Spinal cord injury (SCI) often leads to scar formation, which can hinder nerve regeneration and motor function recovery. This study investigates the potential of apigenin, a natural compound, in reducing fibrous scar formation after SCI. The researchers used a mouse model of SCI and treated the mice with apigenin for 28 days. They assessed scar formation and motor function recovery using various methods, including BMS scoring, staining techniques, and molecular analyses. The study found that apigenin inhibits fibrous scar formation, promotes motor function recovery, and reduces the expression of fibrosis-related parameters after SCI. It suggests that apigenin could be a potential therapeutic agent for SCI by modulating the TGFβ/SMADs signaling pathway.

Study Duration
28 days
Participants
C57BL/6 mice (6–8 weeks old)
Evidence Level
Not specified

Key Findings

  • 1
    Apigenin inhibits fibrous scar formation in the mouse spinal cord after SCI, as evidenced by reduced expression of fibroblast-related parameters and decreased myofibroblast activation.
  • 2
    Apigenin promotes the recovery of motor function in mice with SCI, as indicated by improved BMS scores compared to the control group.
  • 3
    Apigenin increases the content of nerve growth factor (Ngf) in vivo, suggesting it promotes nerve regeneration after SCI.

Research Summary

This study investigates the effect of apigenin on fibrous scar formation after spinal cord injury (SCI) in mice. Apigenin, a natural flavonoid, was administered to mice with SCI, and its effects on scar formation, motor function recovery, and related molecular pathways were assessed. The results showed that apigenin inhibits fibrous scar formation, promotes motor function recovery, reduces the expression of fibroblast-related parameters, and increases nerve growth factor (Ngf) content in vivo. The study concludes that apigenin inhibits fibrous scar formation after SCI by decreasing fibrosis-related factor expression through the TGFβ/SMADs signaling pathway, suggesting its potential as a therapeutic agent for SCI.

Practical Implications

Therapeutic Potential for SCI

Apigenin could be explored as a potential therapeutic agent for reducing fibrous scar formation and promoting motor function recovery after spinal cord injury.

Targeting TGFβ/SMADs Signaling

The study identifies TGFβ/SMADs signaling as a key pathway through which apigenin exerts its effects, providing a specific molecular target for future drug development.

Natural Compound Approach

Using a natural compound like apigenin offers a potentially safer and more accessible approach to managing SCI-related fibrosis compared to synthetic drugs.

Study Limitations

  • 1
    The study was conducted on mice, and the results may not directly translate to humans.
  • 2
    Further research is needed to determine the optimal dosage and delivery method of apigenin for SCI treatment.
  • 3
    The long-term effects of apigenin treatment on SCI recovery were not assessed in this study.

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