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  1. No Access

    Article

    Synthesis of fluoride-releasing carbonate apatites for bone substitutes

    Fluoride (F)-substituted B-type carbonate hydroxyapatite (CHAP) powders were prepared for application as bone substitute materials having the ability to enhance bone formation and to suppress bone resorption due...

    Yu Sogo, Atsuo Ito, Daiki Yokoyama in Journal of Materials Science: Materials in… (2007)

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    Article

    Biomimetic coating of an apatite layer on poly(l-lactic acid); improvement of adhesive strength of the coating

    A biodegradable polymer coated with a bonelike apatite layer on its surface would be useful as a scaffold for bone tissue regeneration. In this study, poly(l-lactic acid) (PLLA) was treated with oxygen plasma to ...

    Yoshiro Yokoyama, Ayako Oyane, Atsuo Ito in Journal of Materials Science: Materials in… (2007)

  3. No Access

    Article

    Calcium phosphate coating formed in infusion fluid mixture to enhance fixation strength of titanium screws

    A novel technique was developed to coat a calcium phosphate (CaP) layer on titanium screws with a titanium oxide surface layer, using infusion fluids officially approved for clinical use. A calcium-containing ...

    Hirotaka Mutsuzaki, Atsuo Ito in Journal of Materials Science: Materials in… (2007)

  4. Article

    Open Access

    BMP-2 gene-fibronectin-apatite composite layer enhances bone formation

    Safe and efficient gene transfer systems are needed for tissue engineering. We have developed an apatite composite layer including the bone morphogenetic protein-2 (BMP-2) gene and fibronectin (FB), and we evalua...

    Wei Zhang, Hideo Tsurushima, Ayako Oyane, Yushin Yazaki in Journal of Biomedical Science (2011)

  5. No Access

    Article

    Enhanced wound healing associated with Sharpey’s fiber-like tissue formation around FGF-2-apatite composite layers on percutaneous titanium screws in rabbits

    Pin-tract infections are the most common complications of external fixation. To solve the problem, we developed a fibroblast growth factor-2 (FGF-2)-apatite composite layer for coating titanium screws. The pur...

    Hirotaka Mutsuzaki, Atsuo Ito, Yu Sogo in Archives of Orthopaedic and Trauma Surgery (2012)

  6. No Access

    Article

    Fabrication of a DNA-lipid-apatite composite layer for efficient and area-specific gene transfer

    A surface-mediated gene transfer system using biocompatible apatite-based composite layers has great potential for tissue engineering. Among the apatite-based composite layers developed to date, we focused on ...

    Ayako Oyane, Yushin Yazaki, Hiroko Araki in Journal of Materials Science: Materials in… (2012)

  7. Article

    Open Access

    Zn- and Mg- Containing Tricalcium Phosphates-Based Adjuvants for Cancer Immunotherapy

    Zn- and Mg-containing tricalcium phosphates (TCPs) loaded with a hydrothermal extract of a human tubercle bacillus (HTB) were prepared by immersing Zn-TCP and Mg-TCP in HTB-containing supersaturated calcium ph...

    **upeng Wang, **a Li, Kazuo Onuma, Yu Sogo, Tadao Ohno, Atsuo Ito in Scientific Reports (2013)

  8. Article

    Open Access

    A phase I study on combined therapy with proton-beam radiotherapy and in situ tumor vaccination for locally advanced recurrent hepatocellular carcinoma

    Proton-beam radiotherapy (PBT) has been shown to be effective to hepatocellular carcinoma (HCC) as a nonsurgical local treatment option. However, HCC still remains as one of the most difficult cancers to be cu...

    Masato Abei, Toshiyuki Okumura, Kuniaki Fukuda, Takayuki Hashimoto in Radiation Oncology (2013)

  9. No Access

    Chapter

    Signal Molecule-Calcium Phosphate Composites: Novel Approaches to Controlling Cellular and/or Biological Reactions and Functions

    Signal molecule-calcium phosphate (CaP) composites are formed in supersaturated CaP solutions containing signal molecules. The molecules coprecipitate with CaPs in the form of coating layers or particulates an...

    **upeng Wang, Ayako Oyane, Atsuo Ito in Advances in Calcium Phosphate Biomaterials (2014)

  10. No Access

    Article

    Effects of gatifloxaine content in gatifloxacine-loaded PLGA and β-tricalcium phosphate composites on efficacy in treating osteomyelitis

    Composites of gatifloxacin (GFLX)-loaded poly (lactic-co-glycolic) acid (PLGA) and β-tricalcium phosphate (βTCP) containing 0, 1, and 10 wt % GFLX (0, 1, and 10 wt % GFLX composites), and GFLX-loaded PLGA cont...

    Kaori Kimishima, Tomonori Matsuno, Jun Makiishi, Gaku Tamazawa, Yu Sogo in Odontology (2016)

  11. Article

    Open Access

    Reducing the risk of impaired bone apposition to titanium screws with the use of fibroblast growth factor-2−apatite composite layer coating

    Loosening of screws is a common problem in orthopedic and maxillofacial surgery. Modifying the implant surface to improve the mechanical strength of screws has been tried and reported. We developed screws coat...

    Kengo Fujii, Atsuo Ito, Hirotaka Mutsuzaki in Journal of Orthopaedic Surgery and Research (2017)

  12. Article

    Open Access

    Hollow boron nitride nanospheres as boron reservoir for prostate cancer treatment

    High global incidence of prostate cancer has led to a focus on prevention and treatment strategies to reduce the impact of this disease in public health. Boron compounds are increasingly recognized as preventa...

    **a Li, **upeng Wang, Jun Zhang, Nobutaka Hanagata, Xuebin Wang in Nature Communications (2017)

  13. Article

    Open Access

    Hierarchically porous, and Cu- and Zn-containing γ-AlOOH mesostrands as adjuvants for cancer immunotherapy

    Alum is the only licensed adjuvant by Food and Drug Administration of USA used in many human vaccines and has excellent safety record in clinical applications. However, alum hardly induces T helper 1 (Th1) imm...

    **a Li, Mohamed A. Shenashen, **upeng Wang, Atsuo Ito in Scientific Reports (2017)

  14. Article

    Open Access

    A nanoscale metal organic frameworks-based vaccine synergises with PD-1 blockade to potentiate anti-tumour immunity

    Checkpoint blockade therapy has provided noteworthy benefits in multiple cancers in recent years; however, its clinical benefits remain confined to 10–40% of patients with extremely high costs. Here, we design...

    **a Li, **upeng Wang, Atsuo Ito, Noriko M. Tsuji in Nature Communications (2020)

  15. Article

    Open Access

    Total body irradiation causes a chronic decrease in antioxidant levels

    Ionizing radiation exposure may not only cause acute radiation syndrome, but also an increased risk of late effects. It has been hypothesized that induction of chronic oxidative stress mediates the late effect...

    Lue Sun, Yohei Inaba, Yu Sogo, Atsuo Ito, Mahesh Bekal, Koichi Chida in Scientific Reports (2021)

  16. Article

    Open Access

    Biosafety of mesoporous silica nanoparticles: a combined experimental and literature study

    Mesoporous silica (MS) particles have been explored for various healthcare applications, but universal data about their safety and/or toxicity are yet to be well-established for clinical purposes. Information ...

    Lue Sun, Yu Sogo, **upeng Wang, Atsuo Ito in Journal of Materials Science: Materials in… (2021)