Faculty Profiles - MATSUMOTO Takuya

Papers - MATSUMOTO Takuya

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Co-precipitating calcium phosphate as oral detoxification of cadmium Reviewed

Ahmad Bikharudin, Masahiro Okada, Ping-chin Sung, Takuya Matsumoto

Journal of Hazardous Materials 487 137307 - 137307 2025.4

Optimizing β-TCP with E-rhBMP-2-infused fibrin for vertical bone regeneration in a mouse calvarium model

Kun Zhao, Mitsuaki Ono, Xindi Mu, Ziyi Wang, Shichao Xie, Tomoko Yonezawa, Masahiro Okada, Takuya Matsumoto, Takuo Kuboki, Toshitaka Oohashi

Regenerative Biomaterials 12 2025.1

Publishing type：Research paper (scientific journal) Publisher：Oxford University Press (OUP)

Abstract

Effective reconstruction of large bone defects, particularly in thickness, remains one of the major challenges in orthopedic and dental fields. We previously produced an Escherichia coli-based industrial-scale GMP-grade recombinant human bone morphogenetic protein-2 (E-rhBMP-2) and showed that the combination of E-rhBMP-2 with beta-tricalcium phosphate (β-TCP/E-rhBMP-2) can effectively promote bone reconstruction. However, the limited mechanical strength and poor morphology retention of β-TCP granules are key points that need optimization to obtain more effective grafts and further expand its clinical applications. Therefore, we combined β-TCP/E-rhBMP-2 with fibrin gel to enhance its mechanical properties and usability for vertical bone regeneration. We investigated the mechanical properties and vertical bone regeneration effects of the materials applied, with or without fibrin containing E-rhBMP-2, in a calvarial defect model in mice. Compression tests were conducted to assess the initial stability of the materials. Scanning electron microscopy and Fourier transform infrared spectroscopy were conducted to characterize the presence of fibrin on the scaffold. After 4 and 12 weeks of implantation, micro-computed tomography and histological and immunofluorescent analyses were performed to assess the morphology and volume of the newly formed bone. The fibrin-containing groups had significantly higher initial mechanical strength and higher ability to maintain their morphology in vivo compared to the counterparts without fibrin. However, fibrin gel alone suppressed the bone formation ability of β-TCP/E-rhBMP-2 whereas the presence of high doses of E-rhBMP-2 in fibrin gel resulted in material resorption and enhanced new bone formation. In conclusion, fibrin gel significantly improved the mechanical strength and surgical manageability of the β-TCP/E-rhBMP-2 scaffold, and the addition of E-rhBMP-2 to the fibrin gel further enhanced the vertical bone regeneration and initial structural integrity of the scaffold.

DOI： 10.1093/rb/rbae144

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Other Link： https://academic.oup.com/rb/article-pdf/doi/10.1093/rb/rbae144/61841803/rbae144.pdf

Long-Term Bonding Performance of One-Bottle vs. Two-Bottle Bonding Agents to Lithium Disilicate Ceramics Reviewed

Masao Irie, Masahiro Okada, Yukinori Maruo, Goro Nishigawa, Takuya Matsumoto

Polymers 16 ( 16 ) 2266 - 2266 2024.8

Publishing type：Research paper (scientific journal) Publisher：MDPI AG

The aim of this study was to compare the long-term bonding performance to lithium disilicate (LDS) ceramic between one-bottle and two-bottle bonding agents. Bonding performance was investigated under these LDS pretreatment conditions: with hydrofluoric acid (HF) only, without HF, with a two-bottle bonding agent (Tokuyama Universal Bond II) only. Shear bond strengths between LDS and nine resin cements (both self-adhesive and conventional adhesive types) were measured at three time periods: after one-day water storage (Base), and after 5000 and 20,000 thermocycles (TC 5k and TC 20k respectively). Difference in degradation between one- and two-bottle bonding agents containing the silane coupling agent was compared by high-performance liquid chromatography. With HF pretreatment, bond strengths were not significantly different among the three time periods for each resin cement. Without HF, ESTECEM II and Super-Bond Universal showed significantly higher values than others at TC 5k and TC 20k when treated with the recommended bonding agents, especially at TC 20k. Difference in degradation between one- and two-bottle bonding agents containing the silane coupling agent was compared by high-performance liquid chromatography (HPLC). For both cements, these values at TC 20k were also not significantly different from pretreatment with only Tokuyama Universal Bond II. For LDS, long-term bond durability could be maintained by pretreatment with Tokuyama Universal Bond II instead of the hazardous HF.

DOI： 10.3390/polym16162266

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The cell membrane as biofunctional material for accelerated bone repair. Reviewed International journal

Emi Hatano, Nahid Akhter, Risa Anada, Mitsuaki Ono, Toshitaka Oohashi, Takuo Kuboki, Hiroshi Kamioka, Masahiro Okada, Takuya Matsumoto, Emilio Satoshi Hara

Acta biomaterialia 2024.7

Language：English Publishing type：Research paper (scientific journal)

The cell (plasma) membrane is enriched with numerous receptors, ligands, enzymes, and phospholipids that play important roles in cell-cell and cell-extracellular matrix interactions governing, for instance, tissue development and repair. We previously showed that plasma membrane nanofragments (PMNFs) act as nucleation sites for bone formation in vivo, and induce in vitro mineralization within 1 day. In this study, we optimized the methods for generating, isolating, and applying PMNFs as a cell-free therapeutic to expedite bone defect repair. The PMNFs were isolated from different mouse cell lines (chondrocytes, osteoblasts, and fibroblasts), pre-conditioned, lyophilized, and subsequently transplanted into 2 mm critical-sized calvarial defects in mice (n = 75). The PMNFs from chondrocytes, following a 3-day pre-incubation, significantly accelerated bone repair within 2 weeks, through a coordinated attraction of macrophages, endothelial cells, and osteoblasts to the healing site. In vitro experiments confirmed that PMNFs enhanced cell adhesion. Comparison of the PMNF efficacy with phosphatidylserine, amorphous calcium phosphate (ACP), and living cells confirmed the unique ability of PMNFs to promote accelerated bone repair. Importantly, PMNFs promoted nearly complete integration of the regenerated bone with native tissue after 6 weeks (% non-integrated bone area = 15.02), contrasting with the partial integration (% non-integrated bone area = 56.10; p < 0.01, Student's test) with transplantation of ACP. Vickers microhardness tests demonstrated that the regenerated bone after 6 weeks (30.10 ± 1.75) exhibited hardness similar to native bone (31.07 ± 2.46). In conclusion, this is the first study to demonstrate that cell membrane can be a promising cell-free material with multifaceted biofunctional properties that promote accelerated bone repair. STATEMENT OF SIGNIFICANCE.

DOI： 10.1016/j.actbio.2024.07.037

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Water-Mediated On-Demand Detachable Solid-State Adhesive of Porous Hydroxyapatite for Internal Organ Retractions. Reviewed International journal

Masahiro Okada, Shi Chao Xie, Yusuke Kobayashi, Hiroaki Yanagimoto, Daisuke Tsugawa, Masaru Tanaka, Takayoshi Nakano, Takumi Fukumoto, Takuya Matsumoto

Advanced healthcare materials e2304616 2024.5

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

Novel adhesives for biological tissues offer an advanced surgical approach. Here, the authors report the development and application of solid-state adhesives consisting of porous hydroxyapatite (HAp) biocompatible ceramics as novel internal organ retractors. The operational principles of the porous solid-state adhesives are experimentally established in terms of water migration from biological soft tissues into the pores of the adhesives, and their performance is evaluated on several soft tissues with different hydration states. As an example of practical medical utility, HAp adhesive devices demonstrate the holding ability of porcine livers and on-demand detachability in vivo, showing great potential as internal organ retractors in laparoscopic surgery.

DOI： 10.1002/adhm.202304616

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Lipids and Minerals, Interplay in Biomineralization: Nature's Alchemy Reviewed

Bhingaradiya Nutan, Masahiro Okada, Takuya Matsumoto

Tissue Engineering Part B: Reviews 2024.4

Adaptive enhancement of apatite crystal orientation and Young's modulus under elevated load in rat ulnar cortical bone Reviewed

Jun Wang, Takuya Ishimoto, Tadaaki Matsuzaka, Aira Matsugaki, Ryosuke Ozasa, Takuya Matsumoto, Mikako Hayashi, Hyoung Seop Kim, Takayoshi Nakano

Bone 181 117024 - 117024 2024.4

Mid-infrared passive spectroscopic imaging for visualizing tooth quality Reviewed

So Yamashita, Masahiro Okada, Takuya Matsumoto, Ichiro Ishimaru

Journal of Materials Chemistry B 2024

Solid-state inorganic and metallic adhesives for soft biological tissues Reviewed

Masahiro Okada, Takuya Matsumoto

Japanese Dental Science Review 59 439 - 445 2023.12

Fabrication of initial trabecular bone inspired three-dimensional structure with cell membrane nanofragments Reviewed

Koichi Kadoya, Emilio Satoshi Hara, Masahiro Okada, Yu Yang Jiao, Takayoshi Nakano, Akira Sasaki, Takuya Matsumoto

Regenerative Biomaterials 10 rbac088 2023.12

Investigation on bacterial capture and antibacterial properties of acid-treated Ti surface Reviewed

Haruyuki Aoyagi, Masahiro Okada, Hiroaki Yanagimoto, Takuya Matsumoto

Dental Materials 2023.12

Fabrication of a Fish-Bone-Inspired Inorganic–Organic Composite Membrane Reviewed

YuYang Jiao, Masahiro Okada, Bhingaradiya Nutan, Noriyuki Nagaoka, Ahmad Bikharudin, Randa Musa, Takuya Matsumoto

Polymers 15 ( 20 ) 4190 - 4190 2023.10

Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI AG

Biological materials have properties like great strength and flexibility that are not present in synthetic materials. Using the ribs of crucian carp as a reference, we investigated the mechanisms behind the high mechanical properties of this rib bone, and found highly oriented layers of calcium phosphate (CaP) and collagen fibers. To fabricate a fish-rib-bone-mimicking membrane with similar structure and mechanical properties, this study involves (1) the rapid synthesis of plate-like CaP crystals, (2) the layering of CaP–gelatin hydrogels by gradual drying, and (3) controlling the shape of composite membranes using porous gypsum molds. Finally, as a result of optimizing the compositional ratio of CaP filler and gelatin hydrogel, a CaP filler content of 40% provided the optimal mechanical properties of toughness and stiffness similar to fish bone. Due to the rigidity, flexibility, and ease of shape control of the composite membrane materials, this membrane could be applied as a guided bone regeneration (GBR) membrane.

DOI： 10.3390/polym15204190

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歯根膜応用を目指した石灰化dECM膜のin vivo骨結合性評価

鈴木美加, 木村剛, 岡田正弘, 松本卓也, 山田将博, 江草宏, 中村奈緒子, 岸田晶夫

日本歯科理工学会誌 42 ( Special Issue81 ) 18 - 18 2023.3

Preparation of mineralized pericardium by alternative soaking for soft–hard interregional tissue application Reviewed

Mika Suzuki, Tsuyoshi Kimura, Yuta Nakano, Mako Kobayashi, Masahiro Okada, Takuya Matsumoto, Naoko Nakamura, Yoshihide Hashimoto, Akio Kishida

Journal of Biomedical Materials Research Part A 111 ( 2 ) 198 - 208 2023.2

Shear Bond Strength of Resin Luting Materials to Lithium Disilicate Ceramic: Correlation between Flexural Strength and Modulus of Elasticity Reviewed

Masao Irie, Masahiro Okada, Yukinori Maruo, Goro Nishigawa, Takuya Matsumoto

Polymers 15 ( 5 ) 1128 - 1128 2023.2

Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI AG

This study investigates the effect of the curing mode (dual-cure vs. self-cure) of resin cements (four self-adhesive and seven conventional cements) on their flexural strength and flexural modulus of elasticity, alongside their shear bond strength to lithium disilicate ceramics (LDS). The study aims to determine the relationship between the bond strength and LDS, and the flexural strength and flexural modulus of elasticity of resin cements. Twelve conventional or adhesive and self-adhesive resin cements were tested. The manufacturer’s recommended pretreating agents were used where indicated. The shear bond strengths to LDS and the flexural strength and flexural modulus of elasticity of the cement were measured immediately after setting, after one day of storage in distilled water at 37 °C, and after 20,000 thermocycles (TC 20k). The relationship between the bond strength to LDS, flexural strength, and flexural modulus of elasticity of resin cements was investigated using a multiple linear regression analysis. For all resin cements, the shear bond strength, flexural strength, and flexural modulus of elasticity were lowest immediately after setting. A clear and significant difference between dual-curing and self-curing modes was observed in all resin cements immediately after setting, except for ResiCem EX. Regardless of the difference of the core-mode condition of all resin cements, flexural strengths were correlated with the LDS surface upon shear bond strengths (R2 = 0.24, n = 69, p < 0.001) and the flexural modulus of elasticity was correlated with them (R2 = 0.14, n = 69, p < 0.001). Multiple linear regression analyses revealed that the shear bond strength was 17.877 + 0.166, the flexural strength was 0.643, and the flexural modulus was (R2 = 0.51, n = 69, p < 0.001). The flexural strength or flexural modulus of elasticity may be used to predict the bond strength of resin cements to LDS.

DOI： 10.3390/polym15051128

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Important roles of odontoblast membrane phospholipids in early dentin mineralization Reviewed International journal

Risa Anada, Emilio Satoshi Hara, Noriyuki Nagaoka, Masahiro Okada, Hiroshi Kamioka, Takuya Matsumoto

Journal of Materials Chemistry B 11 ( 3 ) 657 - 666 2023.1

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Royal Society of Chemistry (RSC)

The objective of this study was to first identify the timing and location of early mineralization of mouse first molar, and subsequently, to characterize the nucleation site for mineral formation...

DOI： 10.1039/d2tb02351b

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Host bone microstructure for enhanced resistance to bacterial infections Reviewed

Ryota Watanabe, Aira Matsugaki, Ozkan Gokcekaya, Ryosuke Ozasa, Takuya Matsumoto, Hiroyuki Takahashi, Hidekazu Yasui, Takayoshi Nakano

Biomaterials Advances 2023

Self-adhesive Devices Made of Titanium for Biological Soft Tissue Reviewed

Masahiro Okada, Takuya Matsumoto

Materia Japan 61 ( 11 ) 760 - 764 2022.11

Does Multifunctional Acrylate’s Addition to Methacrylate Improve Its Flexural Properties and Bond Ability to CAD/CAM PMMA Block? Reviewed International journal

Yukinori Maruo, Kumiko Yoshihara, Masao Irie, Noriyuki Nagaoka, Takuya Matsumoto, Shogo Minagi

Materials 15 ( 21 ) 7564 - 7564 2022.10

Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI AG

This study investigated the effects of a multifunctional acrylate copolymer—Trimethylolpropane Triacrylate (TMPTA) and Di-pentaerythritol Polyacrylate (A-DPH)—on the mechanical properties of chemically polymerized acrylic resin and its bond strength to a CAD/CAM polymethyl methacrylate (PMMA) disk. The methyl methacrylate (MMA) samples were doped with one of the following comonomers: TMPTA, A-DPH, or Trimethylolpropane Trimethacrylate (TMPTMA). The doping ratio ranged from 10 wt% to 50 wt% in 10 wt% increments. The flexural strength (FS) and modulus (FM) of PMMA with and without comonomer doping, as well as the shear bond strength (SBS) between the comonomer-doped PMMA and CAD/CAM PMMA disk, were evaluated. The highest FS (93.2 ± 4.2 MPa) was obtained when doped with 20 wt% of TMPTA. For TMPTMA, the FS decreased with the increase in the doping ratio. For SBS, TMPTA showed almost constant values (ranging from 7.0 to 8.2 MPa) regardless of the doping amount, and A-DPH peaked at 10 wt% doping (8.7 ± 2.2 MPa). TMPTMA showed two peaks at 10 wt% (7.2 ± 2.6 MPa) and 40 wt% (6.5 ± 2.3 MPa). Regarding the failure mode, TMPTMA showed mostly adhesive failure between the CAD/CAM PMMA disk and acrylic resin while TMPTA and A-DPH showed an increased rate of cohesive or mixed failures. Acrylate’s addition as a comonomer to PMMA provided improved mechanical properties and bond strength to the CAD/CAM PMMA disk.

DOI： 10.3390/ma15217564

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Distinct Morphologies of Bone Apatite Clusters in Endochondral and Intramembranous Ossification. Reviewed International journal

Emilio Satoshi Hara, Noriyuki Nagaoka, Masahiro Okada, Takayoshi Nakano, Takuya Matsumoto

Advanced biology 6 ( 11 ) e2200076 2022.7

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

Bone apatite crystals grow in clusters, but the microstructure of these clusters is unknown. This study compares the structural and compositional differences between bone apatite clusters formed in intramembranous (IO) and endochondral ossification (EO). Calvaria (IO) and femurs (EO) are isolated from mice at embryonic days (E) 14.5 to 15.5 and post-natal days (P) 6 to 7, respectively. Results show that the initially formed bone apatite clusters in EO (≅1.2 µm2 ) are >10 times larger than those in IO (≅0.1 µm2 ), without significant changes in ion composition. In IO (E14.5 calvarium), early minerals are formed inside matrix vesicles (MVs). In contrast, in EO (P6 femur epiphysis), no MVs are observed, and chondrocyte-derived plasma membrane nanofragments (PMNFs) are the nucleation site for mineralization. Apatite cluster size difference is linked with the different nucleation sites. Moreover, an alkaline pH and slow P supply into a Ca-rich microenvironment are suggested to facilitate apatite cluster growth, as demonstrated in a biomimetic mineralization system. Together, the results reveal for the first time the distinct and exquisite microstructures of bone apatite clusters in IO and EO, and provide insightful inspirations for the design of more efficient materials for bone tissue engineering and repair.

DOI： 10.1002/adbi.202200076

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Papers - MATSUMOTO Takuya