Elanagai Rathinam1, Srinath Govindarajan2,3, Sivaprakash Rajasekharan4, Heidi Declercq5,6, Dirk Elewaut2,3, Peter De Coster7, Luc Martens4. 1. Department of Paediatric Dentistry & Special Care, PAECOMEDIS Research Cluster, Ghent University, Ghent University Hospital, 9000, Ghent, Belgium. Elanagai.rathinam@ugent.be. 2. Department of Internal Medicine and Paediatrics, Ghent University, Ghent University Hospital, 9000, Ghent, Belgium. 3. Unit for Molecular Immunology and Inflammation, VIB-Center for Inflammation Research, Technologiepark 71, Zwijnaarde, 9052, Ghent, Belgium. 4. Department of Paediatric Dentistry & Special Care, PAECOMEDIS Research Cluster, Ghent University, Ghent University Hospital, 9000, Ghent, Belgium. 5. Tissue Engineering and Biomaterials Group, Department of Human Structure and Repair, Ghent University, Ghent University Hospital, 9000, Ghent, Belgium. 6. Tissue Engineering Lab, Department of Development and Regeneration, KU Leuven, 8500, Kortrijk, Belgium. 7. Department of Reconstructive Dentistry and Oral Biology, Dental School, Ghent University, Ghent University Hospital, 9000, Ghent, Belgium.
Abstract
OBJECTIVES: Tricalcium silicate (TCS)-based biomaterials induce differentiation of human dental pulp cells (hDPCs) into odontoblasts/osteoblasts, which is regulated by the interplay between various intracellular pathways and their resultant secretome. The aim of this study was to compare the transcriptome-wide effects by next-generation RNA sequencing of custom-prepared hDPCs stimulated with TCS-based biomaterials: ProRoot white MTA (WMTA) (Dentsply, Tulsa; Tulsa, OK) and Biodentine (Septodont, Saint Maur des Fosses, France). METHODS: Self-isolated hDPCs were seeded in a 6-well plate at a density of 5 × 105 cells per well. ProRoot white MTA and Biodentine were then placed in transwell inserts with a pore size of 0.4 μm and inserted in the well plate. RNA sequencing was performed after 3 and 7 days treatment. For post-validation, RT-PCR analyses were done on some of the RNA samples used for RNA sequencing. RESULTS: Our RNA sequencing results for the first time identified 7533 differentially expressed genes (DEGs) between different treatments and the number of DEGs in Biodentine was higher than ProRoot WMTA at both 3 and 7 days. Despite their differential gene expression, both the TCS-based biomaterial treatments showed gene expressions mainly involved in odontoblast differentiation, angiogenesis, neurogenesis, dentinogenesis, and tooth mineralization. CONCLUSIONS: The results of the present study illustrate that several important signalling pathways are induced by hDPCs stimulated with TCS-based biomaterials. CLINICAL RELEVANCE: The differential expression of the genes associated with odontogenesis, angiogenesis, neurogenesis, dentinogenesis, and mineralization may affect the prognosis of teeth treated with Biodentine or ProRoot white MTA.
OBJECTIVES:Tricalcium silicate (TCS)-based biomaterials induce differentiation of human dental pulp cells (hDPCs) into odontoblasts/osteoblasts, which is regulated by the interplay between various intracellular pathways and their resultant secretome. The aim of this study was to compare the transcriptome-wide effects by next-generation RNA sequencing of custom-prepared hDPCs stimulated with TCS-based biomaterials: ProRoot white MTA (WMTA) (Dentsply, Tulsa; Tulsa, OK) and Biodentine (Septodont, Saint Maur des Fosses, France). METHODS: Self-isolated hDPCs were seeded in a 6-well plate at a density of 5 × 105 cells per well. ProRoot white MTA and Biodentine were then placed in transwell inserts with a pore size of 0.4 μm and inserted in the well plate. RNA sequencing was performed after 3 and 7 days treatment. For post-validation, RT-PCR analyses were done on some of the RNA samples used for RNA sequencing. RESULTS: Our RNA sequencing results for the first time identified 7533 differentially expressed genes (DEGs) between different treatments and the number of DEGs in Biodentine was higher than ProRoot WMTA at both 3 and 7 days. Despite their differential gene expression, both the TCS-based biomaterial treatments showed gene expressions mainly involved in odontoblast differentiation, angiogenesis, neurogenesis, dentinogenesis, and tooth mineralization. CONCLUSIONS: The results of the present study illustrate that several important signalling pathways are induced by hDPCs stimulated with TCS-based biomaterials. CLINICAL RELEVANCE: The differential expression of the genes associated with odontogenesis, angiogenesis, neurogenesis, dentinogenesis, and mineralization may affect the prognosis of teeth treated with Biodentine or ProRoot white MTA.
Entities:
Keywords:
Biodentine; MTA; Mineral trioxide aggregate; RNA sequencing; Transcriptomics
Authors: Ensanya Ali Abou Neel; Wojciech Chrzanowski; Vehid M Salih; Hae-Won Kim; Jonathan C Knowles Journal: J Dent Date: 2014-05-28 Impact factor: 4.379