Effects of Addition of Nano-hydroxyapatite to Highly-pressed Collagen on Osteogenic Differentiation in Osteoblastic SaOS-2 Cells
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- IKEDA Koji
- Department of Prosthodontics and Oral Implantology, Iwate Medical University School of Dentistry, Iwate, Japan.
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- TAIRA Masayuki
- Department of Biomedical Engineering; Iwate Medical University and
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- YOKOTA Jun
- Department of Prosthodontics and Oral Implantology, Iwate Medical University School of Dentistry, Iwate, Japan.
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- HATTORI Masayuki
- Department of Biomedical Engineering; Iwate Medical University and
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- ISHISAKI Akira
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate, Japan
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- KONDO Hisatomo
- Department of Prosthodontics and Oral Implantology, Iwate Medical University School of Dentistry, Iwate, Japan.
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Abstract
<p>We produced highly pressed nano-hydroxyapatite/collagen composites (P-nHAP/COL) by Newton press. The aim of this study was to investigate osteogenic differentiation profiles in osteoblastic SaOS-2 cells cultured on P-nHAP/COL and pressed collagen (P-COL) as control for 1, 2, 3 and 4 weeks. Total RNA were extracted from cultured cells, and expressions of osteogenic-differentiation related genes were evaluated with quantitative real-time (RT) PCR using primer sets of alkaline phosphatase (ALP), type 1 collagen (COL1), bone Sialo protein (BSP) and osteocalcin precursor (BGLAP) genes as well as β-actin gene. The cultured cells were also observed with scanning electron microscopy (SEM). RT-PCR analyses revealed that osteogenic differentiation was more accelerated on P-nHAP/COL than on P-COL, especially revealed by up-regulation with time of BGLAP gene. In SEM images, SaOS-2 cells on P-COL were either cubic or fibroblastic up to 4 weeks, but those on P-nHAP/COL appeared as granular or highly stretched. The obtained results suggested that P-nHAP/COL could be employed as a new osteo-conductive bone substitute material.</p>
Journal
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- Nano Biomedicine
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Nano Biomedicine 8 (2), 91-100, 2016
Nano Biomedical Society
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Keywords
Details 詳細情報について
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- CRID
- 1390001205345258368
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- NII Article ID
- 130005243671
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- ISSN
- 21854734
- 18835198
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- Text Lang
- en
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- Data Source
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- JaLC
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed