Inflammatory response and macrophage polarization using different physicochemical biomaterials for oral and maxillofacial reconstruction
| Autor: | Maira Cristina Rondina Couto, Mariza Akemi Matsumoto, Marco Antonio Hungaro Duarte, Ana Carolina Zucon Bacelar, Paulo Sérgio Bossini, Raquel Barroso Parra da Silva, Jordan Lima da Silva, Ana Claudia Rodrigues da Silva, Claudia Cristina Biguetti, Marcelo Salles Munerato, Joel Ferreira Santiago-Júnior |
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| Přispěvatelé: | Sagrado Coração University – USC, Universidade Estadual Paulista (Unesp), Universidade de São Paulo (USP), Research and Education Center for Phototherapy in Health Science (Nupen) |
| Rok vydání: | 2020 |
| Předmět: |
Male
Pathology medicine.medical_specialty Materials science Osteoimmunology Macrophage polarization Nitric Oxide Synthase Type II Biocompatible Materials Bioengineering Calvaria 02 engineering and technology Bone healing CIRURGIA BUCOMAXILOFACIAL 010402 general chemistry Bone tissue 01 natural sciences Bone and Bones Biomaterials Transforming Growth Factor beta Materials Testing medicine Animals Rats Wistar Bone substitutes Macrophages Biomaterial Osteoblast X-Ray Microtomography Macrophage Activation 021001 nanoscience & nanotechnology Rats 0104 chemical sciences medicine.anatomical_structure Mechanics of Materials Bone Substitutes Intramembranous ossification Maxillofacial Injuries Hydroxyapatites 0210 nano-technology |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2020-12-12T00:59:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-02-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Knowledge about the action of immune system in the recognition of biomaterials has been extremely helpful when it comes about understanding host response and biomaterials' fate in human body. This study aimed to investigate inflammatory response and macrophage polarization during bone healing process of rat's calvaria critical defects using different bone materials in order to evaluate their influence on bone repair and on the quality of the newly formed bone tissue. Eighty male albinus Wistar rats underwent surgical procedure for the confectioning of a 5-mm diameter bone defect in their right parietal bone, and divided in four groups (n = 20 each), according the biomaterial: AG – Control, particulate intramembranous autogenous bone graft, HA/TCP – particulate biphasic calcium phosphate with HA/TCP (60/40), DBB – particulate deproteinized bovine bone, VC – particulate bioactive vitroceramic. After 3, 7, 21, and 45 days, the specimens were removed and prepared for microcomputed tomography (microCT), light and polarized microscopy, immunohistochemical analysis, and histomorphometry. No significant differences were detected considering percentage of leukocytes among the groups and periods, as well as in relation to immunolabeling for inflammatory (M1) and reparative (M2) macrophages. However, immunolabeling for bone marker indicated a delayed osteoblast differentiation in VC group, resulting in a decrease in mineralized bone matrix parameters in this group, revealed by microCT. In addition, AG and HA/TCP presented a satisfactory bone collagenous content. Despite the distinct origins and physicochemical properties of the tested biomaterials, they presented similar immune-inflammatory responses in the present experimental model, influencing bone-related proteins and bone quality, which must be considered according to their use. Department of Health Sciences Sagrado Coração University – USC, Rua Irmã Arminda 10-50 Department of Basic Sciences São Paulo State University (Unesp) School of Dentistry, Rua José Bonifácio 1193 Department of Dentistry Endodontics and Dental Materials Bauru School of Dentistry University of São Paulo – FOB/USP, Al. Octávio Pinheiro Brisola, 9-75 Research and Education Center for Phototherapy in Health Science (Nupen), Rua Pedro Fernandes Alonso, 766, Jardim Alvorada Department of Basic Sciences São Paulo State University (Unesp) School of Dentistry, Rua José Bonifácio 1193 FAPESP: 03762-7 FAPESP: 2016 |
| Databáze: | OpenAIRE |
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