The phenotypic response of bovine corneal endothelial cells on chitosan/polycaprolactone blends

Tsung Jen Wang, I. Jong Wang, Shi Chen, Yi Hsin Chen, Tai Horng Young

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23 引文 斯高帕斯(Scopus)

摘要

Although various behaviors of corneal endothelial cells (CECs) have been investigated, the interaction of CECs with different biodegradable biomaterials has not been systematically well explored. Thus, two common biodegradable biomaterials with dissimilar characteristics, chitosan and polycaprolactone (PCL), were examined in bovine CEC (BCEC) culture systems to elucidate their possible impact on clinical demand and scientific interest. The interaction between cells and matrices was also surveyed. Pure PCL could not be used for observation because of its opacity. Nevertheless, BCECs did not adhere and proliferate well on chitosan. To overcome this drawback, we developed blends using various proportions of chitosan and PCL: PCL 25, PCL 50, and PCL 75. As the content of PCL increased in the blends, BCECs showed greater degrees of adhesion and proliferation. Furthermore, cells reached confluence and maintained their typical hexagonal shape at day 7 on blends PCL 50 and PCL 75. In addition, when BCECs were cultured on the blends, the expressions of the differentiation marker N-cadherin and tight junction marker ZO-1 were well developed, resembling the physiological phenotypes. A possible explanation for the increased proliferation and preservation of BCECs on the blends is that blending chitosan and PCL could create a bioactive substratum. This method could regulate gene expression to synthesize more extracellular matrix type IV collagen, paving an important way to provide a favorable environment for BCEC cultures. Accordingly, promoting CEC growth effects by blending may be applied to the tissue engineering of corneal endothelium.

原文英語
頁(從 - 到)236-243
頁數8
期刊Colloids and Surfaces B: Biointerfaces
90
發行號1
DOIs
出版狀態已發佈 - 2月 1 2012

ASJC Scopus subject areas

  • 生物技術
  • 表面和介面
  • 物理與理論化學
  • 膠體和表面化學

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