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. 2007 Dec 15;83(4):1054-1061.
doi: 10.1002/jbm.a.31417.

Promotion of peripheral nerve growth by collagen scaffolds loaded with collagen-targeting human nerve growth factor-beta

Wenjie Sun  1   2 , Hang Lin  1 , Bing Chen  1 , Wenxue Zhao  1 , Yannan Zhao  1 , Jianwu Dai  1
Affiliations

Promotion of peripheral nerve growth by collagen scaffolds loaded with collagen-targeting human nerve growth factor-beta

Wenjie Sun et al. J Biomed Mater Res A. .

Abstract

Nerve growth factor (NGF) plays a critical role in neuronal development and regeneration. However, the lack of efficient NGF delivery system limits its clinical application. We reported that a peptide deduced from collagenase, TKKTLRT, fused with NGF-beta could develop a collagen based NGF targeting delivery system. Our results showed that this peptide could allow fused NGF-beta bind to collagen specifically. In addition, we found that the polypeptide could result in a 2.3-fold increase in the expression level and a significant improvement of bioactivity of fused NGF-beta. In the in vivo function study, collagen membranes loaded with the collagen binding NGF enhanced the nerve growth. Thus, the targeting wound repair system could be important for the repair of peripheral nerve injury.

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