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Nunes FC, Santos SIP, Colnago LA, Hammer P, Ferreira JA, Ambrósio CE, Pallone EMJA. Impact of ZrO 2 Content on the Formation of Sr-Enriched Phosphates in Al 2O 3/ZrO 2 Nanocomposites for Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1893. [PMID: 38673250 PMCID: PMC11052522 DOI: 10.3390/ma17081893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 03/26/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024]
Abstract
This study investigates the profound impact of the ZrO2 inclusion volume on the characteristics of Al2O3/ZrO2 nanocomposites, particularly influencing the formation of calcium phosphates on the surface. This research, aimed at advancing tissue engineering, prepared nanocomposites with 5, 10, and 15 vol% ZrO2, subjecting them to chemical surface treatment for enhanced calcium phosphate deposition sites. Biomimetic coating with Sr-enriched simulated body fluid (SBF) further enhanced the bioactivity of nanocomposites. While the ZrO2 concentration heightened the oxygen availability on nanocomposite surfaces, the quantity of Sr-containing phosphate was comparatively less influenced than the formation of calcium phosphate phases. Notably, the coated nanocomposites exhibited a high cell viability and no toxicity, signifying their potential in bone tissue engineering. Overall, these findings contribute to the development of regenerative biomaterials, holding promise for enhancing bone regeneration therapies.
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Affiliation(s)
- Fabio Caixeta Nunes
- Postgraduate Programme in Materials Science and Engineering, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Av. Duque de Caxias Norte, 225, Pirassununga 13635-900, SP, Brazil;
| | - Sarah Ingrid Pinto Santos
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Pirassununga 13635-900, SP, Brazil; (S.I.P.S.); (C.E.A.)
| | - Luiz Alberto Colnago
- Brazilian Agricultural Research Corporation, EMBRAPA Instrumentation, Rua Quinze de Novembro, 1500/1501, São Carlos 13561-206, SP, Brazil;
| | - Peter Hammer
- Institute of Chemistry, São Paulo State University (UNESP), Araraquara 14800-900, SP, Brazil;
| | - Julieta Adriana Ferreira
- Fundação Hermínio Ometto, Fundação Hermínio Ometto (FHO), Av. Dr. Maximiliano Baruto, 500, Araras 13607-339, SP, Brazil;
| | - Carlos Eduardo Ambrósio
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Pirassununga 13635-900, SP, Brazil; (S.I.P.S.); (C.E.A.)
| | - Eliria Maria Jesus Agnolon Pallone
- Postgraduate Programme in Materials Science and Engineering, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Av. Duque de Caxias Norte, 225, Pirassununga 13635-900, SP, Brazil;
- Department of Biosystem Engineering, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Pirassununga 13635-900, SP, Brazil
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Moriwaki T, Tani H, Haga K, Morita-Umei Y, Soma Y, Umei TC, Sekine O, Takatsuna K, Kishino Y, Kanazawa H, Fujita J, Fukuda K, Tohyama S, Ieda M. Scalable production of homogeneous cardiac organoids derived from human pluripotent stem cells. CELL REPORTS METHODS 2023; 3:100666. [PMID: 38113855 PMCID: PMC10753388 DOI: 10.1016/j.crmeth.2023.100666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 08/24/2023] [Accepted: 11/16/2023] [Indexed: 12/21/2023]
Abstract
Three-dimensional (3D) cultures are known to more closely mimic in vivo conditions compared with 2D cultures. Cardiac spheroids (CSs) and organoids (COs) are useful for 3D tissue engineering and are advantageous for their simplicity and mass production for regenerative therapy and drug discovery. Herein, we describe a large-scale method for producing homogeneous human induced pluripotent stem cell (hiPSC)-derived CSs (hiPSC-CSs) and COs without scaffolds using a porous 3D microwell substratum with a suction system. Our method has many advantages, such as increased efficiency and improved functionality, homogeneity, and sphericity of hiPSC-CSs. Moreover, we have developed a substratum on a clinically relevant large scale for regenerative therapy and have succeeded in producing approximately 40,000 hiPSC-CSs with high sphericity at once. Furthermore, we efficiently produced a fused CO model consisting of hiPSC-derived atrial and ventricular cardiomyocytes localized on opposite sides of one organoid. This method will facilitate progress toward hiPSC-based clinical applications.
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Affiliation(s)
- Taijun Moriwaki
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Hidenori Tani
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan; Joint Research Laboratory for Medical Innovation in Heart Disease, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Kotaro Haga
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Yuika Morita-Umei
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan; Kanagawa Institute of Industrial Science and Technology (KISTEC), Kawasaki, Kanagawa, Japan
| | - Yusuke Soma
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Tomohiko C Umei
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Otoya Sekine
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Kaworu Takatsuna
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Yoshikazu Kishino
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Hideaki Kanazawa
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Jun Fujita
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan; Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Keiichi Fukuda
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
| | - Shugo Tohyama
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan.
| | - Masaki Ieda
- Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan
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Vidane AS, Nunes FC, Ferreira JA, Fukumasu H, Freitas SH, Pallone EMJA, Ambrósio CE. Biocompatibility and interaction of porous alumina-zirconia scaffolds with adipose-derived mesenchymal stem cells for bone tissue regeneration. Heliyon 2023; 9:e20128. [PMID: 37809419 PMCID: PMC10559935 DOI: 10.1016/j.heliyon.2023.e20128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/16/2023] [Accepted: 09/12/2023] [Indexed: 10/10/2023] Open
Abstract
Replacement of bone defects with bone graft or implant is an important therapeutic strategy that has been used in routine practice. However, the identification of biomaterials that can mimic natural bone properties and serve as bone substitutes remains a major challenge. In this context, alumina-zirconia (Al2O3/ZrO2) nanocomposites emerge as potential alternatives for biomedical applications, owing to their high mechanical strength, wear resistance, and biocompatibility. In this sense, in this study, we prepared porous Al2O3/ZrO2 nanocomposites (scaffolds) using the gelcasting method and biomimetically coated them with calcium phosphate (CaP). We evaluated the biocompatibility of the scaffolds using the quantitative MTT cytotoxicity test in L929 cells. Moreover, rabbit adipose-derived mesenchymal stem cells (rADMSCs) were seeded with CaP-containing and CaP-free porous samples to evaluate cell proliferation and cell-scaffold interaction in vitro. Our results showed that the Al2O3/ZrO2 scaffolds were non-cytotoxic, and there were no significant differences between CaP-containing and CaP-free scaffolds in terms of cell growth and adhesion. In contrast, when co-cultured with rADMSCs, the scaffolds enhanced cell proliferation and cell adhesion. The rADMSCs adhered and migrated through the pores of the scaffold and anchored to different poles with differentiated elongated structures. These results suggest osteogenic differentiation of rADMSCs in response to mechanical loading of Al2O3/ZrO2 scaffolds. Therefore, we conclude that Al2O3/ZrO2 scaffolds have demonstrated significant implications in bone tissue engineering and are valuable biomaterials for bone replacement.
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Affiliation(s)
- Atanasio S. Vidane
- Department of Clinics, Veterinary Faculty, Eduardo Mondlane University, Maputo, Mozambique
| | - Fabio C. Nunes
- Department of Biosystems Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil
| | - Julieta A. Ferreira
- Department of Biosystems Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil
| | - Heidge Fukumasu
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil
| | - Silvio H. Freitas
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil
| | - Eliria MJA. Pallone
- Department of Biosystems Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil
| | - Carlos E. Ambrósio
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil
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