PMID- 31251466 OWN - NLM STAT- MEDLINE DCOM- 20211102 LR - 20211102 IS - 1552-4981 (Electronic) IS - 1552-4973 (Linking) VI - 108 IP - 3 DP - 2020 Apr TI - Diopside-tricalcium phosphate bioactive ceramics for osteogenic differentiation of human adipose stem cells. PG - 819-833 LID - 10.1002/jbm.b.34436 [doi] AB - Ti scaffolds combined with autologous human adipose-derived mesenchymal stem cells (hASCs) have been successfully applied for regenerative cranio-maxillofacial bone therapies. Future challenges reside in regeneration of larger bone defects and displacement of the permanent Ti structure, thus, advanced resorbable scaffolds are needed. Composites of beta-Ca(3) (PO(4) )(2) with 80 and 60 wt % of CaMg(SiO(3) )(2) with improved mechanical properties compared to tricalcium phosphate (TCP) materials are presented. Synthetic CaMg(SiO(3) )(2) and a precursor of Ca(3) (PO(4) )(2) were used to fabricate the composites and a reference beta-Ca(3) (PO(4) )(2) material by uniaxial pressing and solid state sintering. Optimum sintering temperature of 1225 degrees C was selected. Microstructural analysis and Weibull distributions of tensile strengths determined by the diametral compression of discs test are reported. Thermodynamic simulation of the dissolution process in simulated body fluid body fluid was done. The biological response with hASCs was analyzed using basic and osteogenic media. Viability and osteogenic potential-LIVE/DEAD assay; alkaline phosphatase activity and collagen type-I production-were characterized. The composites have higher tensile strength (>3x) than TCP materials, for similar reliability, and support viability and osteogenic differentiation of hASCs. Resorption of the high strength phase diopside is the slowest. The promising results reported here suggest possible uses of these bioactive beta-Ca(3) (PO(4) )(2) -CaMg(SiO(3) )(2) ceramics together with hASCs in bone tissue engineering. CI - (c) 2019 Wiley Periodicals, Inc. FAU - Vanhatupa, Sari AU - Vanhatupa S AD - Adult Stem Cell Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland. AD - Research, Development and Innovation Centre, Tampere University Hospital, Tampere, Finland. FAU - Miettinen, Susanna AU - Miettinen S AD - Adult Stem Cell Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland. AD - Research, Development and Innovation Centre, Tampere University Hospital, Tampere, Finland. FAU - Pena, Pilar AU - Pena P AD - Instituto de Ceramica y Vidrio, CSIC, Madrid, Spain. FAU - Baudin, Carmen AU - Baudin C AD - Instituto de Ceramica y Vidrio, CSIC, Madrid, Spain. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190628 PL - United States TA - J Biomed Mater Res B Appl Biomater JT - Journal of biomedical materials research. Part B, Applied biomaterials JID - 101234238 RN - 0 (Calcium Phosphates) RN - 1343-98-2 (Silicic Acid) RN - 14483-19-3 (diopside) RN - EC 3.1.3.1 (Alkaline Phosphatase) RN - K4C08XP666 (tricalcium phosphate) SB - IM MH - Adipocytes/*cytology MH - Alkaline Phosphatase/metabolism MH - Bone and Bones/pathology MH - Calcium Phosphates/*chemistry MH - Cell Differentiation MH - Cell Survival MH - Humans MH - Kinetics MH - Microscopy, Electron, Scanning MH - Microscopy, Fluorescence MH - *Osteogenesis MH - Pressure MH - Reproducibility of Results MH - Silicic Acid/*chemistry MH - Stem Cells/*cytology MH - Stress, Mechanical MH - Temperature MH - Tensile Strength MH - Thermodynamics MH - Tissue Engineering/methods MH - X-Ray Diffraction OTO - NOTNLM OT - calcium phosphates OT - cell differentiation OT - diopside OT - mechanical properties OT - stem cells EDAT- 2019/06/30 06:00 MHDA- 2021/11/03 06:00 CRDT- 2019/06/29 06:00 PHST- 2019/01/24 00:00 [received] PHST- 2019/05/11 00:00 [revised] PHST- 2019/06/06 00:00 [accepted] PHST- 2019/06/30 06:00 [pubmed] PHST- 2021/11/03 06:00 [medline] PHST- 2019/06/29 06:00 [entrez] AID - 10.1002/jbm.b.34436 [doi] PST - ppublish SO - J Biomed Mater Res B Appl Biomater. 2020 Apr;108(3):819-833. doi: 10.1002/jbm.b.34436. Epub 2019 Jun 28.