PMID- 20979138 OWN - NLM STAT- MEDLINE DCOM- 20110208 LR - 20220410 IS - 1549-4918 (Electronic) IS - 1066-5099 (Print) IS - 1066-5099 (Linking) VI - 28 IP - 10 DP - 2010 Oct TI - Allogeneic periodontal ligament stem cell therapy for periodontitis in swine. PG - 1829-38 LID - 10.1002/stem.512 [doi] AB - Periodontitis is one of the most widespread infectious diseases in humans. It is the main cause of tooth loss and associated with a number of systemic diseases. Until now, there is no appropriate method for functional periodontal tissue regeneration. Here, we establish a novel approach of using allogeneic periodontal ligament stem cells (PDLSCs) sheet to curing periodontitis in a miniature pig periodontitis model. Significant periodontal tissue regeneration was achieved in both the autologous and the allogeneic PDLSCs transplantation group at 12 weeks post-PDLSCs transplantation. Based on clinical assessments, computed tomography (CT) scanning, and histological examination, there was no marked difference between the autologous and allogeneic PDLSCs transplantation groups. In addition, lack of immunological rejections in the animals that received the allogeneic PDLSCs transplantation was observed. Interestingly, we found that human PDLSCs fail to express human leukocyte antigen (HLA)-II DR and costimulatory molecules. PDLSCs were not able to elicit T-cell proliferation and inhibit T-cell proliferation when stimulated with mismatched major histocompatibility complex molecules. Furthermore, we found that prostaglandin E2 (PGE2) plays a crucial role in PDLSCs-mediated immunomodulation and periodontal tissue regeneration in vitro and in vivo. Our study demonstrated that PDLSCs possess low immunogenicity and marked immunosuppression via PGE2-induced T-cell anergy. We developed a standard technological procedure of using allogeneic PDLSCs to cure periodontitis in swine. FAU - Ding, Gang AU - Ding G AD - Molecular Laboratory for Gene Therapy and Tooth Regeneration, Capital Medical University School of Stomatology, Beijing, People's Republic of China. FAU - Liu, Yi AU - Liu Y FAU - Wang, Wei AU - Wang W FAU - Wei, Fulan AU - Wei F FAU - Liu, Dayong AU - Liu D FAU - Fan, Zhipeng AU - Fan Z FAU - An, Yunqing AU - An Y FAU - Zhang, Chunmei AU - Zhang C FAU - Wang, Songlin AU - Wang S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Stem Cells JT - Stem cells (Dayton, Ohio) JID - 9304532 SB - IM MH - Animals MH - Apoptosis MH - Cell Proliferation MH - Flow Cytometry MH - Humans MH - Periodontal Ligament/*cytology MH - Periodontitis/*therapy MH - Polymerase Chain Reaction MH - Stem Cell Transplantation/*methods MH - Stem Cells/cytology/metabolism MH - Swine MH - Tissue Engineering/methods PMC - PMC2996858 EDAT- 2010/10/28 06:00 MHDA- 2011/02/09 06:00 PMCR- 2010/12/03 CRDT- 2010/10/28 06:00 PHST- 2010/10/28 06:00 [entrez] PHST- 2010/10/28 06:00 [pubmed] PHST- 2011/02/09 06:00 [medline] PHST- 2010/12/03 00:00 [pmc-release] AID - 10.1002/stem.512 [doi] PST - ppublish SO - Stem Cells. 2010 Oct;28(10):1829-38. doi: 10.1002/stem.512.