PMID- 28735626 OWN - NLM STAT- MEDLINE DCOM- 20180409 LR - 20181202 IS - 1532-2823 (Electronic) IS - 0952-3278 (Linking) VI - 122 DP - 2017 Jul TI - Differentiation of hMSC and hPDLSC induced by PGE2 or BMP-7 in 3D models. PG - 30-37 LID - S0952-3278(16)30246-0 [pii] LID - 10.1016/j.plefa.2017.06.005 [doi] AB - Regenerative therapies of pathogenic tissue defects are gaining increasing importance in periodontology. Among others, the osteogenic effect of BMP-7 seems to play a major role in the development of teeth and alveolar bone. Human periodontal ligament stem cells (hPDLSC), as well as human mesenchymal stem cells (hMSC), show the ability to differentiate into various types of tissues. Regarding prostaglandin E2, many studies have confirmed that it is involved in the inflammation associated to periodontitis stimulating osteoclasts, which ultimately leads to resorption of tooth supporting bone. Herein, we aimed to investigate how PGE2 influences regenerative processes. The influence of PGE2 and BMP-7 on the osteogenic differentiation of hMSC and hPDLSC was determined in a 3D cell culture model using qRT-PCR, immunocytochemistry and REM. BMP-7 enhanced the expression of osteogenic markers in hMSC and lowered it in hPDLSC-TERT. BMP-7 had a lower osteogenic effect on hPDLSC-hTERT than on hMSC, while PGE2 decreases the osteogenic differentiation in both cell types, thus, inhibiting anabolic processes. Both cell types presented good proliferation and adhesion onto the scaffolds. The well-developed structural morphology and the support of osteogenic differentiation suggest that the scaffolds are potential candidate materials for bone regeneration. The positivity for Cap in hPDLSC and more in hMSC immunostaining samples indicates the initiation of neocementogenesis as part of periodontal regeneration. In conclusion, BMP7, in particular combined with MSC, seems to have a favourable application also in periodontal regeneration. Our results show that inflammation plays an important role in periodontal regeneration. PGE2 is a key mediator, which stimulates bone resorption also via a mechanism involving the inhibition of osteogenic differentiation of MSC as well as PDLSC. Therefore, regenerative approaches should always be conducted in combination with anti-inflammatory measures oriented to control inflammation. CI - Copyright (c) 2017. Published by Elsevier Ltd. FAU - Ern, Christina AU - Ern C AD - Department of Operative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-Universitat Munchen, Germany. Electronic address: chrisern@dent.med.uni-muenchen.de. FAU - Berger, Tamara AU - Berger T AD - Department of Operative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-Universitat Munchen, Germany; Max Planck Institute of Psychiatry, Munich, Germany. Electronic address: berger_tamara@gmx.de. FAU - Frasheri, Iris AU - Frasheri I AD - Department of Operative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-Universitat Munchen, Germany. Electronic address: irisfrasheri@yahoo.it. FAU - Heym, Richard AU - Heym R AD - Department of Operative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-Universitat Munchen, Germany. Electronic address: rheym@dent.med.uni-muenchen.de. FAU - Hickel, Reinhard AU - Hickel R AD - Department of Operative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-Universitat Munchen, Germany. Electronic address: hickel@dent.med.uni-muenchen.de. FAU - Folwaczny, Matthias AU - Folwaczny M AD - Department of Operative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-Universitat Munchen, Germany. Electronic address: mfolwa@dent.med.uni-muenchen.de. LA - eng PT - Journal Article DEP - 20170615 PL - Scotland TA - Prostaglandins Leukot Essent Fatty Acids JT - Prostaglandins, leukotrienes, and essential fatty acids JID - 8802730 RN - 0 (BMP7 protein, human) RN - 0 (Bone Morphogenetic Protein 7) RN - K7Q1JQR04M (Dinoprostone) SB - IM MH - Bone Morphogenetic Protein 7/*pharmacology MH - Cell Differentiation/*drug effects MH - Cells, Cultured MH - Dinoprostone/*pharmacology MH - Humans MH - Male MH - Mesenchymal Stem Cells/*metabolism/pathology MH - Periodontal Ligament/*metabolism/pathology OTO - NOTNLM OT - BMP-7 OT - Mesenchymal stem cell OT - Periodontal ligament stem cell OT - Periodontitis OT - Scaffold OT - hTERT EDAT- 2017/07/25 06:00 MHDA- 2018/04/10 06:00 CRDT- 2017/07/25 06:00 PHST- 2016/12/02 00:00 [received] PHST- 2017/04/06 00:00 [revised] PHST- 2017/06/12 00:00 [accepted] PHST- 2017/07/25 06:00 [entrez] PHST- 2017/07/25 06:00 [pubmed] PHST- 2018/04/10 06:00 [medline] AID - S0952-3278(16)30246-0 [pii] AID - 10.1016/j.plefa.2017.06.005 [doi] PST - ppublish SO - Prostaglandins Leukot Essent Fatty Acids. 2017 Jul;122:30-37. doi: 10.1016/j.plefa.2017.06.005. Epub 2017 Jun 15.