The effect of topology of chitosan biomaterials on the differentiation and proliferation of neural stem cells

Gan Wang, Qiang Ao, Kai Gong, Aijun Wang, Lu Zheng, Yandao Gong, Xiufang Zhang

Research output: Contribution to journalArticle

62 Scopus citations

Abstract

Neural stem cells (NSCs) are capable of self-renewal and differentiation into three principle central nervous system cell types under specific local microenvironments. Chitosan films (Chi-F), chitosan porous scaffolds (Chi-PS) and chitosan multimicrotubule conduits (Chi-MC) were used to investigate their effects on the differentiation and proliferation of NSCs isolated from the cortices of fetal rats. In the presence of 10% fetal bovine serum most NSCs cultured on Chi-F differentiated into astrocytes, NSCs cultured on Chi-MC showed a significant increase in neuronal differentiation, while Chi-PS somewhat promoted NSCs to differentiate into neurons. However, in serum-free medium with 20 ng ml1 basic fibroblast growth factor NSCs cultured on Chi-F showed the greatest proliferation, NSCs cultured on Chi-MC showed moderate cell proliferation, but NSCs cultured on Chi-PS exhibited the least cell proliferation. These observations indicate that chitosan topology can play an important role in regulating differentiation and proliferation of NSCs and raise the possibility of the utilization of chitosan in various structural biomaterials in neural tissue engineering.

Original languageEnglish (US)
Pages (from-to)3630-3639
Number of pages10
JournalActa Biomaterialia
Volume6
Issue number9
DOIs
StatePublished - Sep 2010

Keywords

  • Chitosan
  • Differentiation
  • Neural stem cells
  • Proliferation
  • Topology

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering
  • Biotechnology
  • Biochemistry
  • Molecular Biology
  • Medicine(all)

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