PMID- 28053606 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 1687-966X (Print) IS - 1687-9678 (Electronic) VI - 2016 DP - 2016 TI - PS1/gamma-Secretase-Mediated Cadherin Cleavage Induces beta-Catenin Nuclear Translocation and Osteogenic Differentiation of Human Bone Marrow Stromal Cells. PG - 3865315 LID - 10.1155/2016/3865315 [doi] LID - 3865315 AB - Bone marrow stromal cells (BMSCs) are considered a promising tool for bone bioengineering. However, the mechanisms controlling osteoblastic commitment are still unclear. Osteogenic differentiation of BMSCs requires the activation of beta-catenin signaling, classically known to be regulated by the canonical Wnt pathway. However, BMSCs treatment with canonical Wnts in vitro does not always result in osteogenic differentiation and evidence indicates that a more complex signaling pathway, involving cadherins, would be required to induce beta-catenin signaling in these cells. Here we showed that Wnt3a alone did not induce TCF activation in BMSCs, maintaining the cells at a proliferative state. On the other hand, we verified that, upon BMSCs osteoinduction with dexamethasone, cadherins were cleaved by the PS1/gamma-secretase complex at the plasma membrane, and this event was associated with an enhanced beta-catenin translocation to the nucleus and signaling. When PS1/gamma-secretase activity was inhibited, the osteogenic process was impaired. Altogether, we provide evidence that PS1/gamma-secretase-mediated cadherin cleavage has as an important role in controlling beta-catenin signaling during the onset of BMSCs osteogenic differentiation, as part of a complex signaling pathway responsible for cell fate decision. A comprehensive map of these pathways might contribute to the development of strategies to improve bone repair. FAU - Bonfim, Danielle C AU - Bonfim DC AUID- ORCID: 0000-0002-6850-2061 AD - Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil. FAU - Dias, Rhayra B AU - Dias RB AD - Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil. FAU - Fortuna-Costa, Anneliese AU - Fortuna-Costa A AD - Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Institute of Medical Biochemistry, National Institute of Cancer, Rio de Janeiro, RJ, Brazil. FAU - Chicaybam, Leonardo AU - Chicaybam L AD - Molecular Carcinogenesis Program, National Institute of Cancer, Rio de Janeiro, RJ, Brazil; Evandro Chagas Clinical Research Institute, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, RJ, Brazil. FAU - Lopes, Daiana V AU - Lopes DV AD - Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil. FAU - Dutra, Helio S AU - Dutra HS AD - Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil. FAU - Borojevic, Radovan AU - Borojevic R AD - Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil. FAU - Bonamino, Martin AU - Bonamino M AD - Molecular Carcinogenesis Program, National Institute of Cancer, Rio de Janeiro, RJ, Brazil. FAU - Mermelstein, Claudia AU - Mermelstein C AD - Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil. FAU - Rossi, Maria Isabel D AU - Rossi MI AUID- ORCID: 0000-0003-3432-8453 AD - Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil. LA - eng PT - Journal Article DEP - 20161208 PL - United States TA - Stem Cells Int JT - Stem cells international JID - 101535822 PMC - PMC5178376 COIS- All authors state that they have no competing interests. EDAT- 2017/01/06 06:00 MHDA- 2017/01/06 06:01 PMCR- 2016/12/08 CRDT- 2017/01/06 06:00 PHST- 2016/09/12 00:00 [received] PHST- 2016/11/01 00:00 [accepted] PHST- 2017/01/06 06:00 [entrez] PHST- 2017/01/06 06:00 [pubmed] PHST- 2017/01/06 06:01 [medline] PHST- 2016/12/08 00:00 [pmc-release] AID - 10.1155/2016/3865315 [doi] PST - ppublish SO - Stem Cells Int. 2016;2016:3865315. doi: 10.1155/2016/3865315. Epub 2016 Dec 8.