Neuronal guidance factor Sema3A inhibits neurite ingrowth and prevents chondrocyte hypertrophy in the degeneration of knee cartilage in mice, monkeys and humans

2025

Sema3A's Role in Knee Cartilage Health

Sample size: 20 publication 10 minutes Evidence: moderate

Author Information

Author(s): Huang Shishu, Gao Dashuang, Li Zhenxia, He Hongchen, Yu Xi, You Xuanhe, Wu Diwei, Du Ze, Zeng Jiancheng, Shi Xiaojun, Hu Qinshen, Nie Yong, Zhang Zhong, Luo Zeyu, Wang Duan, Zhao Zhihe, Li Lingli, Wang Guanglin, Wang Liping, Zhou Zongke, Chen Di, Yang Fan

Primary Institution: West China Hospital, Sichuan University, Chengdu, China

Hypothesis

Sema3A may have both protective and therapeutic roles in osteoarthritis (OA) by inhibiting nerve growth and preventing chondrocyte hypertrophy.

Conclusion

Sema3A has a protective effect on cartilage degradation and could be used as a treatment for osteoarthritis.

Supporting Evidence

Sema3A was shown to inhibit nerve growth in cartilage.
Clinical trials indicated pain relief in OA patients treated with Sema3A.
Mouse models demonstrated that Sema3A prevents cartilage degradation.
Sema3A expression was linked to reduced chondrocyte hypertrophy.
PRP containing Sema3A showed improved knee function in patients.
Statistical analysis showed significant differences in treatment outcomes.
Sema3A's mechanism involves the PI3K pathway.
Rhesus macaque models confirmed Sema3A's therapeutic potential.

Takeaway

Sema3A helps keep knee cartilage healthy and might be a good treatment for knee pain from arthritis.

Methodology

The study involved in vitro organoid cultures, mouse models, and clinical trials with human patients to assess the effects of Sema3A on cartilage health.