Osteoblastic cellular responses to aluminosilicate nanotubes, imogolite using Saos-2 and MC3T3-E1 cells
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概要
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Imogolite is a naturally occurring hydrous aluminosilicate clay mineral. It has nano-tubular structure similar to that of single-walled carbon nanotubes. Imogolite is a subject of interest in the pedological field, but to date there has been no bioapplications of this substance. In this study, we investigated the cellular response of osteoblast-like cells to imogolite scaffolds. To reveal the morphology, proliferation and osteoblastic functional mineralization, we cultured human osteoblast-like cells (Saos-2) and mouse osteoblast-like cells (MC3T3-E1) on the scaffolds. The surface characteristics of the imogolite scaffold were drastically changed depending on the amount of imogolite on the dish. With the increase of imogolite concentration, the surface morphology of scaffolds changed from an island-like shape in random orientation to a self-organized fiber texture aligned in the same direction, and finally full coverage in a random orientation with plural layers. Both types of osteoblast were widely spread on the imogolite scaffolds compared to their appearance in a conventional culture dish (control). The proliferation of the two types of osteoblast showed potentially useful trends. In cellular function, there was greater mineralization of both types of osteoblast on imogolite scaffolds than that of the control. Saos-2 and MC3T3-E1 cells showed good biocompatibility in addition to the enhanced osteoblastic mineralization. Therefore, imogolite is expected to be useful as a scaffold material for bone tissue engineering.
- 公益社団法人 日本セラミックス協会の論文
著者
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ABE Shigeaki
Department of Biomedical Materials and Engineering, Graduate School of Dental Medicine, Hokkaido Uni
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Watari Fumio
Department Of Applied Science Faculty Of Engineering
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SUZUKI Masaya
National Industrial research institute of Nagoya, AIST, MITI
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Yawaka Yasutaka
Department Of Dentistry For Children And Disabled Person Division Of Oral Functional Science Hokkaid
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ISHIKAWA Kosuke
Department of Dentistry for Children and Disabled Person, Graduate School of Dental Medicine, Hokkai
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WATARI Fumio
Department of Biomedical, Dental Materials and Engineering, Graduate School of Dental Medicine, Hokkaido University
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ABE Shigeaki
Department of Biomedical, Dental Materials and Engineering, Graduate School of Dental Medicine, Hokkaido University
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YAWAKA Yasutaka
Department of Dentistry for Children and Disabled Person, Graduate School of Dental Medicine, Hokkaido University
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ISHIKAWA Kosuke
Department of Dentistry for Children and Disabled Person, Graduate School of Dental Medicine, Hokkaido University
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SUZUKI Masaya
National Institute of Advanced Industrial Science and Technology, AIST, Institute for Geo-Resources and Environment
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