Journal of Oral Science Research ›› 2016, Vol. 32 ›› Issue (11): 1160-1164.DOI: 10.13701/j.cnki.kqyxyj.2016.11.012

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An Experimental Study of Multilayer Ligamental Periodontal Cell Sheets on Tissue Regeneration

NG Xue-peng1,2,3, HE Yong1,3, WANG Chong4, LI Shi-ting5, JIN Yan1,3*   

  1. 1. State Key Laboratory of Military Stomatology of the Fourth Military Medical University, Xi'an 710032, China;
    2. Taoyuan Clinic of Dalian Sanatorium of PLA. Danlian 116013, China;
    3. Research and Development Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China;
    4. The Shan Ping Medical District of No 210 Hospital of PLA. Dalian 116021, China;
    5. Department of Stomatology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China.
  • Received:2016-05-09 Online:2016-11-25 Published:2016-11-25

Abstract: Objective: To fabricate multilayer periodontal ligament stem cell pellets (MUCPs) and monolayer periodontal ligament stem cell pellets (MCPs), and to evaluate their biological activity and regeneration potential. Methods: Biological properties of two kinds of cell sheets were observed by immunohistochemistry and scanning electron microscopy. And then the cell sheets were combined with CBB to construct biological roots. Tissue regeneration in the nude mice after ectopic transplantation was observed. Results: The in vitro experiments showed higher levels of structural proteins in the extracellular matrix composed of COL-I, COL-III, fibronectin and laminin in the MUCPs. Upon transplantation, formation of mineralized nodules and periodontal fibrous tissue similar to the periodontal tissues was more obvious in the MUCPs than that in MCPs in vivo. Conclusion: MUCPs presented a good biological activity and it may be a promising alternative in periodontal repair for future clinical application.

Key words: Ligamental periodontal stem cell, Multilayer cell sheet, Monolayer cell sheet, Tissue regeneration, Microenvironment

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