Journal of Oral Science Research ›› 2017, Vol. 33 ›› Issue (7): 737-741.DOI: 10.13701/j.cnki.kqyxyj.2017.07.012

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Effects of Titania Nanotubes with Different Diameters on Bone Marrow Mesenchymal Stem Cells.

XU Zhi-qiang1,HUANG Si-jia2,HE Yu-qi1,ZOU Geng-sen3,QIU Zhu-wen1,CHEN Jiang3*.   

  1. 1. Department of Stomatology, Affiliated Hospital of Putian University, Putian 351100, China;
    2. Quanzhou Medical College, Quanzhou 362000, China;
    3. Department of Oral Implantology, Affiliated Stomatological Hospital of Fujian Medical University, Fuzhou 350004, China.
  • Received:2016-11-22 Online:2017-07-20 Published:2017-07-27

Abstract: Objective:To investigate the effects of titania nanotubes (TNTs) with different diameters on bone marrow mesenchymal stem cells (BMSCs). Methods: TNTs with three different diameters were fabricated on Ti surfaces through electrochemical anodization. MTT method was used to determine the cell adhesion and cell proliferation abilities. Alkaline phosphatase activity, collagen secretion, and extracellular matrix mineralization were used to evaluate the osteogenic differentiation of BMSCs. Results: TNTs with a diameter of 30 nm significantly promoted the adhesion and proliferation of BMSCs at the early stage, while there was no obvious difference at the later stage. TNTs with a diameter of 200 nm showed the best ability to promote the osteogenic differentiation. However, it clearly impaired cell adhesion and proliferation. The initial cell adhesion and cell proliferation on TNTs with a diameter of 100 nm were slightly repressed. Furthermore, they could promote the osteogenic differentiation. Conclusion: The optimal diameter of TNTs for BMSCs migth be 100nm.

Key words: Titania nanotubes , Bone marrow mesenchymal stem cells , Cell adhesion , Cell proliferation, Osteogenic differentiation

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