Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (21): 3361-3366.doi: 10.3969/j.issn.2095-4344.2014.21.015

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Combination of olfactory ensheathing cells and chitosan in treatment of peripheral nerve injury

Chang Rui, Yin Xiao-long, Shang Bao-sheng, He Peng   

  1. Department of Orthopedics, Hospital of China XD Group, Xi’an 710077, Shaanxi Province, China
  • Online:2014-05-21 Published:2014-05-21
  • Contact: Chang Rui, Master, Associate chief physician, Department of Orthopedics, Hospital of China XD Group, Xi’an 710077, Shaanxi Province, China
  • About author:Chang Rui, Master, Associate chief physician, Department of Orthopedics, Hospital of China XD Group, Xi’an 710077, Shaanxi Province, China
  • Supported by:

    the Project of Shaanxi Provincial Health Bureau in 2012, No. 2012D56

Abstract:

BACKGROUND: Olfactory ensheathing cells can promote the repair of the central nervous system. Composite engineering materials prepared by the combination of chitosan and collagen have been widely used in the construction of tissue-engineered nerve conduits.
OBJECTIVE: To explore the repair effect of olfactory ensheathing cells and chitosan in the treatment of sciatic nerve injury in rats.
METHODS: Rat models of sciatic nerve injury were prepared. Olfactory ensheathing cells combined with chitosan scaffold were used to connect the injured sciatic nerve. In the chitosan scaffold group, only the chitosan scaffold was utilized. In the control group, no treatment was done.
RESULTS AND CONCLUSION: At 1–4 weeks following surgery, sciatic functional index and motion evoked potential were monitored and histological examination was performed. Sciatic functional index was significantly improved in the olfactory ensheathing cells+chitosan scaffold group (P < 0.05). Motion evoked potential was significantly lower in the olfactory ensheathing cells+chitosan scaffold group compared with other groups (P < 0.001). Histological examinations showed new nerve fibers and rare inflammatory reaction in the olfactory ensheathing cells+chitosan scaffold group. These findings indicate that autologous olfactory ensheathing cells combined with chitosan scaffold exerts good repair effects on treatment of sciatic nerve injury, and can be considered as an ideal tissue engineering material.


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: peripheral nerves, chitosan, sciatic nerve, inflammation

CLC Number: