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Effect of expanded bone marrow-derived osteoprogenitor cells seeded into polycaprolactone/tricalcium phosphate scaffolds in new bone regeneration of rabbit mandibular defects

  • Tissue Engineering Constructs and Cell Substrates
  • Original Research
  • Published:
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Abstract

The purpose of this study was to assess and evaluate new bone formation in rabbit marginal mandibular defects using expanded bone marrow-derived osteoprogenitor cells seeded in three-dimensional scaffolds of polycaprolactone/tricalcium phosphate (PCL/TCP). Bone marrow was harvested from the rabbit ilium and rabbit bone marrow-derived osteoprogenitor cells were isolated and expanded in standard culture medium and osteogenic medium supplement. The cells were then seeded into the PCL/TCP scaffolds and the cell/scaffold constructions were implanted into prepared defects in rabbit mandibles. PCL/TCP scaffold alone and autogenous bone graft from the mandible were also implanted into the other prepared defects. The specimens were evaluated at 4 and 8 weeks after the implantation using clinical, radiographic, and histological techniques. The results of the experimental group demonstrated more newly formed bone on the surface and in the pores of the PCL/TCP scaffolds. In addition, the osteoblasts, osteocytes, and new bone trabeculae were identified throughout the defects that were implanted with the cell/scaffold constructions. The PCL/TCP alone group was filled mostly with fibrous cells particularly in the middle region with less bone formation. These results would suggest that the derived osteotoprogenitor cells have the potential to form bone tissue when seeded onto PCL/TCP scaffolds.

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Authors and Affiliations

  1. Department of Oral and Maxillofacial surgery, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand

    Thongchai Nuntanaranont & Srisurang Sutapreyasri

  2. Surin Hospital, Lakmuans Road, Nai Mueang, Mueang Surin, Surin, 32000, Thailand

    Tapanee Promboot

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  1. Thongchai Nuntanaranont
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  2. Tapanee Promboot
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  3. Srisurang Sutapreyasri
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Correspondence to Thongchai Nuntanaranont.

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Nuntanaranont, T., Promboot, T. & Sutapreyasri, S. Effect of expanded bone marrow-derived osteoprogenitor cells seeded into polycaprolactone/tricalcium phosphate scaffolds in new bone regeneration of rabbit mandibular defects. J Mater Sci: Mater Med 29, 24 (2018). https://doi.org/10.1007/s10856-018-6030-z

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  • DOI: https://doi.org/10.1007/s10856-018-6030-z

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