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Nano-needle strontium-substituted apatite coating enhances osteoporotic osseointegration through promoting osteogenesis and inhibiting osteoclastogenesis
Implant loosening remains a major clinical challenge for osteoporotic patients. This is because osteoclastic bone resorption rate is higher than osteoblastic bone formation rate in the case of osteoporosis, which results in poor bone repair. Strontium (Sr) has been widely accepted as an anti-osteopo...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
KeAi Publishing
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7553892/ https://www.ncbi.nlm.nih.gov/pubmed/33102935 http://dx.doi.org/10.1016/j.bioactmat.2020.09.024 |
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author | Geng, Zhen Ji, Luli Li, Zhaoyang Wang, Jing He, Hongyan Cui, Zhenduo Yang, Xianjin Liu, Changsheng |
author_facet | Geng, Zhen Ji, Luli Li, Zhaoyang Wang, Jing He, Hongyan Cui, Zhenduo Yang, Xianjin Liu, Changsheng |
author_sort | Geng, Zhen |
collection | PubMed |
description | Implant loosening remains a major clinical challenge for osteoporotic patients. This is because osteoclastic bone resorption rate is higher than osteoblastic bone formation rate in the case of osteoporosis, which results in poor bone repair. Strontium (Sr) has been widely accepted as an anti-osteoporosis element. In this study, we fabricated a series of apatite and Sr-substituted apatite coatings via electrochemical deposition under different acidic conditions. The results showed that Ca and Sr exhibited different mineralization behaviors. The main mineralization products for Ca were CaHPO(4)·2H(2)O and Ca(3)(PO(4))(2) with the structure changed from porous to spherical as the pH values increased. The main mineralization products for Sr were SrHPO(4) and Sr(5)(PO(4))(3)OH with the structure changed from flake to needle as the pH values increased. The in vitro experiment demonstrated that coatings fabricated at high pH condition with the presence of Sr were favorable to MSCs adhesion, spreading, proliferation, and osteogenic differentiation. In addition, Sr-substituted apatite coatings could evidently inhibit osteoclast differentiation and fusion. Moreover, the in vivo study indicated that nano-needle like Sr-substituted apatite coating could suppress osteoclastic activity, improve new bone formation, and enhance bone-implant integration. This study provided a new theoretical guidance for implant coating design and the fabricated Sr-substituted coating might have potential applications for osteoporotic patients. |
format | Online Article Text |
id | pubmed-7553892 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | KeAi Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-75538922020-10-23 Nano-needle strontium-substituted apatite coating enhances osteoporotic osseointegration through promoting osteogenesis and inhibiting osteoclastogenesis Geng, Zhen Ji, Luli Li, Zhaoyang Wang, Jing He, Hongyan Cui, Zhenduo Yang, Xianjin Liu, Changsheng Bioact Mater Article Implant loosening remains a major clinical challenge for osteoporotic patients. This is because osteoclastic bone resorption rate is higher than osteoblastic bone formation rate in the case of osteoporosis, which results in poor bone repair. Strontium (Sr) has been widely accepted as an anti-osteoporosis element. In this study, we fabricated a series of apatite and Sr-substituted apatite coatings via electrochemical deposition under different acidic conditions. The results showed that Ca and Sr exhibited different mineralization behaviors. The main mineralization products for Ca were CaHPO(4)·2H(2)O and Ca(3)(PO(4))(2) with the structure changed from porous to spherical as the pH values increased. The main mineralization products for Sr were SrHPO(4) and Sr(5)(PO(4))(3)OH with the structure changed from flake to needle as the pH values increased. The in vitro experiment demonstrated that coatings fabricated at high pH condition with the presence of Sr were favorable to MSCs adhesion, spreading, proliferation, and osteogenic differentiation. In addition, Sr-substituted apatite coatings could evidently inhibit osteoclast differentiation and fusion. Moreover, the in vivo study indicated that nano-needle like Sr-substituted apatite coating could suppress osteoclastic activity, improve new bone formation, and enhance bone-implant integration. This study provided a new theoretical guidance for implant coating design and the fabricated Sr-substituted coating might have potential applications for osteoporotic patients. KeAi Publishing 2020-10-07 /pmc/articles/PMC7553892/ /pubmed/33102935 http://dx.doi.org/10.1016/j.bioactmat.2020.09.024 Text en © 2020 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Geng, Zhen Ji, Luli Li, Zhaoyang Wang, Jing He, Hongyan Cui, Zhenduo Yang, Xianjin Liu, Changsheng Nano-needle strontium-substituted apatite coating enhances osteoporotic osseointegration through promoting osteogenesis and inhibiting osteoclastogenesis |
title | Nano-needle strontium-substituted apatite coating enhances osteoporotic osseointegration through promoting osteogenesis and inhibiting osteoclastogenesis |
title_full | Nano-needle strontium-substituted apatite coating enhances osteoporotic osseointegration through promoting osteogenesis and inhibiting osteoclastogenesis |
title_fullStr | Nano-needle strontium-substituted apatite coating enhances osteoporotic osseointegration through promoting osteogenesis and inhibiting osteoclastogenesis |
title_full_unstemmed | Nano-needle strontium-substituted apatite coating enhances osteoporotic osseointegration through promoting osteogenesis and inhibiting osteoclastogenesis |
title_short | Nano-needle strontium-substituted apatite coating enhances osteoporotic osseointegration through promoting osteogenesis and inhibiting osteoclastogenesis |
title_sort | nano-needle strontium-substituted apatite coating enhances osteoporotic osseointegration through promoting osteogenesis and inhibiting osteoclastogenesis |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7553892/ https://www.ncbi.nlm.nih.gov/pubmed/33102935 http://dx.doi.org/10.1016/j.bioactmat.2020.09.024 |
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