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TECHNOLOGY DEVELOPMENT

Transplantation of Mesenchymal Stem Cells Is an Optimal Approach for Plastic Surgery

^aSalivary Gland Disease Center and the Molecular Laboratory for Gene Therapy, Capital Medical University School of Stomatology, Beijing, China;
^bDepartment of Oral and Maxillofacial Surgery, School of Dentistry, Dental Research Institute, Seoul National University, Seoul, Korea;
^cCenter for Craniofacial Molecular Biology, University of Southern California School of Dentistry, Los Angeles, California, USA

Key Words. Bone marrow mesenchymal stem cells • Periodontal ligament stem cells • Tissue regeneration • Plastic surgery

Correspondence: Songtao Shi, D.D.S., Ph.D., Center for Craniofacial Molecular Biology, University of Southern California School of Dentistry, 2250 Alcazar Street, CSA 103, Los Angeles, CA 90033, USA. Telephone: 323-442-3038; Fax: 323-442-2981; e-mail: songtaos{at}usc.edu; or Songlin Wang, D.D.S., Ph.D., Salivary Gland Disease Center and the Molecular Laboratory for Gene Therapy, Capital Medical University School of Stomatology, Tian Tan Xi Li No. 4, Beijing 100050, China. Telephone: 86-10-67062012; Fax: 86-10-83911708; e-mail: songlinwang{at}dentist.org.cn

Received September 13, 2006; accepted for publication December 1, 2006.
First published online in STEM CELLS EXPRESS   December 14, 2006.



Mesenchymal stem cells (MSCs) are able to differentiate into a variety of cell types, offering promising approaches for stem cell-mediated tissue regeneration. Here, we explored the potential of utilizing MSCs to reconstruct orofacial tissue, thereby altering the orofacial appearance. We demonstrated that bone marrow MSCs were capable of generating bone structures and bone-associated marrow elements on the surfaces of the orofacial bone. This resulted in significant recontouring of the facial appearance in mouse and swine. Notably, the newly formed bone and associated marrow tissues integrated with the surfaces of the recipient bones and re-established a functional bone marrow organ-like system. These data suggested that MSC-mediated tissue regeneration led to a body structure extension, with the re-establishment of all functional components necessary for maintaining the bone and associated marrow organ. In addition, we found that the subcutaneous transplantation of another population of MSCs, the human periodontal ligament stem cells (PDLSCs), could form substantial amounts of collagen fibers and improve facial wrinkles in mouse. By contrast, bone marrow MSCs failed to survive at 8 weeks post-transplantation under the conditions used for the PDLSC transplantation. This study suggested that the mutual interactions between donor MSCs and recipient microenvironment determine long-term outcome of the functional tissue regeneration. Disclosure of potential conflicts of interest is found at the end of this article.

Disclosure of potential conflicts of interest is found at the end of this article.

This article has been cited by other articles:

				Y. Liu, Y. Zheng, G. Ding, D. Fang, C. Zhang, P. M. Bartold, S. Gronthos, S. Shi, and S. Wang Periodontal Ligament Stem Cell-Mediated Treatment for Periodontitis in Miniature Swine Stem Cells, April 1, 2008; 26(4): 1065 - 1073. [Abstract] [Full Text] [PDF]