Chinese Journal of Tissue Engineering Research ›› 2017, Vol. 21 ›› Issue (18): 2913-2919.doi: 10.3969/j.issn.2095-4344.2017.18.020

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A novel tissue-engineered crosslinked collagen-chitosan scaffold and its biocompatibility with nerve cells

Lu Jiang1, 2, 3, Chen Xuan-li4, Tang He-xin1, 2, She Na2, Zhu Yao1, Li Si-xing1, Wang Tian-ying1, Zhang Guo-hui1 
  

  1. 1First Clinical College, 2Institute of Anesthesiology, 4Basic Medical Institute, Hubei University of Medicine, Shiyan 442000, Hubei Province, China; 3Department of Anesthesiology, Affiliated Taihe Hospital of Hubei University of Medicine, Shiyan 442000, Hubei Province, China
  • Received:2017-02-21 Online:2017-06-28 Published:2017-07-07
  • Contact: Zhang Guo-hui, First Clinical College, Hubei University of Medicine, Shiyan 442000, Hubei Province, China
  • About author:Lu Jiang, M.D., Lecturer, First Clinical College, Hubei University of Medicine, Shiyan 442000, Hubei Province, China; Institute of Anesthesiology, Hubei University of Medicine, Shiyan 442000, Hubei Province, China; Department of Anesthesiology, Affiliated Taihe Hospital of Hubei University of Medicine, Shiyan 442000, Hubei Province, China
  • Supported by:
    the National College Student Innovation and Entrepreneurship Training Program of Education Ministry of China in 2012, No. 201210929004; the National College Student Innovation and Entrepreneurship Training Program of Education Ministry of China in 2016, No. 201610929005; the Scientific and Technological Project of Shiyan City of Hubei Province, No. 14Y13; the Educational Scientific Foundation of Hubei University of Medicine in 2016, No. 2016027; the Natural Science Research Project of Hubei University of Medicine, No. 2011QDZR-1, 2011QDZR-2; Fund of Disciplines Construction of Hubei University of Medicine in 2015, No. 2015; and the Scientific Foundation of Affiliated Taihe Hospital of Hubei University of Medicine in 2016, No. 2016JJXM001

Abstract:

BACKGROUND: Treatment for peripheral nerve injury is still a challenge in the field of regenerative medicine. The use of scaffold materials is considered to be one of the promising opportunities to settle these defects. The ideal scaffold material should be safe and durable, but have no antigenicity.
OBJECTIVE: To develop a novel tissue-engineered collagen-chitosan composite scaffolds under modification in attempt to repair sciatic nerve injury in rats.
METHODS: First the collagen-chitosan composite scaffold was prepared, and then cross-linked with 1-ethyl-3-(3-2 methyl amino propyl)-WC 2 imide (EDC) and N-hydroxy succinimide (NHS). After modification, nerve cells were seeded onto the scaffold. Finally, the cell-scaffold composite was implanted into the injured sciatic nerve.
RESULTS AND CONCLUSION: The EDC/NHS-crosslinked collagen-chitosan scaffold showed a three-dimensional reticular structure. Four weeks after the cell-scaffold composite implantation, neurofilament protein 200 was found to express in the injured sciatic nerve. This indicates that the crosslinked collagen-chitosan scaffold has good cytocompatibility.

Key words: Biocompatible Materials, Collagen, Chitosan, Tissue Engineering

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