Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Bioactive glass-ceramic for bone tissue engineering: an in vitro and in vivo study focusing on osteoclasts

Full text
Author(s):
Rayana Longo Bighetti-Trevisan [1] ; Alann Thaffarell Portilho Souza [2] ; Ingrid Wezel Tosin [3] ; Natália Pieretti Bueno [4] ; Murilo Camuri Crovace [5] ; Marcio Mateus Beloti [6] ; Adalberto Luiz Rosa [7] ; Emanuela Prado Ferraz [8]
Total Authors: 8
Affiliation:
[1] Universidade de São Paulo – USP. School of Dentistry of Ribeirão Preto. Bone Research Lab - Brasil
[2] Universidade de São Paulo – USP. School of Dentistry of Ribeirão Preto. Bone Research Lab - Brasil
[3] Universidade de São Paulo – USP. School of Dentistry of Ribeirão Preto. Bone Research Lab - Brasil
[4] Universidade de São Paulo – USP. School of Dentistry. Department of Oral and Maxillofacial Surgery, Prosthesis and Traumatology - Brasil
[5] Universidade Federal de São Carlos – UFScar. Vitreous Materials Laboratory - Brasil
[6] Universidade de São Paulo – USP. School of Dentistry of Ribeirão Preto. Bone Research Lab - Brasil
[7] Universidade de São Paulo – USP. School of Dentistry of Ribeirão Preto. Bone Research Lab - Brasil
[8] Universidade de São Paulo – USP. School of Dentistry. Department of Oral and Maxillofacial Surgery, Prosthesis and Traumatology - Brasil
Total Affiliations: 8
Document type: Journal article
Source: Brazilian Oral Research; v. 36, 2022-03-14.
Abstract

Abstract: Despite the crucial role of osteoclasts in the physiological process of bone repair, most bone tissue engineering strategies have focused on osteoblast-biomaterial interactions. Although Biosilicate® with two crystalline phases (BioS-2P) exhibits osteogenic properties and significant bone formation, its effects on osteoclasts are unknown. This study aimed to investigate the in vitro and in vivo effects of BioS-2P on osteoclast differentiation and activity. RAW 264.7 cells were cultured in osteoclastogenic medium (OCM) or OCM conditioned with BioS-2P (OCM-BioS-2P), and the cell morphology, viability, and osteoclast differentiation were evaluated. BioS-2P scaffolds were implanted into rat calvarial defects, and the bone tissue was evaluated using tartrate-resistant acid phosphatase (TRAP) staining and RT-polymerase chain reaction (PCR) after 2 and 4 weeks to determine the gene expressions of osteoclast markers and compare them with those of the bone grown in empty defects (Control). OCM-BioS-2P favored osteoclast viability and activity, as evidenced by an increase in the TRAP-positive cells and matrix resorption. The bone tissue grown on BioS-2P scaffolds exhibited higher expression of the osteoclast marker genes (Ctsk, Mmp 9, Rank) after 2 and 4 weeks and the RankL/Opg ratio after 2 weeks. Trap gene expression was lower at 2 weeks, and a higher number of TRAP-stained areas were observed in the newly formed bone on BioS-2P scaffolds at both 2 and 4 weeks compared to the Controls. These results enhanced our understanding of the role of bioactive glass-ceramics in bone repair, and highlighted their role in the modulation of osteoclastic activities and promotion of interactions between bone tissues and biomaterials. (AU)

FAPESP's process: 16/22528-5 - The effect of biosilicate with two crystalline phases (BioS-2P) on osteoclast differentiation and activity in vivo
Grantee:Ingrid Wenzel Tosin
Support Opportunities: Scholarships in Brazil - Scientific Initiation