首页> 外文期刊>Materials science & engineering >Simple and facile preparation of recombinant human bone morphogenetic protein-2 immobilized titanium implant via initiated chemical vapor deposition technique to promote osteogenesis for bone tissue engineering application
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Simple and facile preparation of recombinant human bone morphogenetic protein-2 immobilized titanium implant via initiated chemical vapor deposition technique to promote osteogenesis for bone tissue engineering application

机译:通过引发的化学气相沉积技术简便快捷地制备重组人骨形态发生蛋白2固定化钛植入物,以促进成骨作用,用于骨组织工程应用

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摘要

Over the past few decades, titanium (Ti) implants have been widely used to repair fractured bones. To promote osteogenesis, immobilization of osteoinductive agents, such as recombinant human bone morphogenic protein-2 (rhBMP2), onto the Ti surface is required. In this study, we prepared rhBMP2 immobilized on glycidyl methacrylate (GMA) deposited Ti surface through initiated chemical vapor deposition (iCVD) technique. After preparation, the bio-functionalized Ti surface was characterized by physicochemical analysis. For in vitro analysis, the developed Ti was evaluated by cell proliferation, alkaline phosphatase activity, calcium deposition, and real-time polymerase chain reaction to verify their osteogenic activity against human adipose-derived stem cells (hASCs). The GMA deposited Ti surface was found to effectively immobilize a large dose of rhBMP2 as compared to untreated Ti. Additionally, rhBMP2 immobilized on Ti showed significantly enhanced osteogenic differentiation and increased calcium deposition with nontoxic cell viability. These results clearly confirm that our strategy may provide a simple, solvent-free strategy to prepare an osteoinductive Ti surface for bone tissue engineering applications.
机译:在过去的几十年中,钛(Ti)植入物已被广泛用于修复骨折的骨头。为了促进成骨作用,需要将骨诱导剂(例如重组人骨形态发生蛋白2(rhBMP2))固定在Ti表面上。在这项研究中,我们通过引发化学气相沉积(iCVD)技术制备了固定在甲基丙烯酸缩水甘油酯(GMA)沉积的Ti表面上的rhBMP2。制备后,通过理化分析对生物功能化的Ti表面进行表征。对于体外分析,通过细胞增殖,碱性磷酸酶活性,钙沉积和实时聚合酶链反应评估了已形成的钛,以验证其对人类脂肪干细胞(hASCs)的成骨活性。发现与未处理的Ti相比,GMA沉积的Ti表面有效地固定了大剂量的rhBMP2。此外,固定在Ti上的rhBMP2表现出显着增强的成骨分化能力,并增加了钙沉积,并具有无毒的细胞活力。这些结果清楚地证明,我们的策略可以提供一种简单,无溶剂的策略来制备用于骨组织工程应用的骨诱导性Ti表面。

著录项

  • 来源
    《Materials science & engineering》 |2019年第7期|949-958|共10页
  • 作者单位

    Seoul Natl Univ, Interdisciplinary Program Bioengn, 1 Gwanak Ro, Seoul 08826, South Korea|Univ Minho, 3Bs Res Grp Biomat Biodegradables & Biomimet, Headquarters European Inst Excellence Tissue Engn, Avepk Parque Ciencia & Tecnol,Zona Ind Gandra, P-4805017 Barco, Gmr, Portugal;

    Kyung Hee Univ, Sch Dent, Dept Dent Mat, 26 Kyungheedae Ro, Seoul 02447, South Korea;

    Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, 291 Daehak Ro, Daejeon 34141, South Korea;

    Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, 291 Daehak Ro, Daejeon 34141, South Korea;

    Kyung Hee Univ, Sch Dent, Dept Dent Mat, 26 Kyungheedae Ro, Seoul 02447, South Korea;

    Kyung Hee Univ, Sch Dent, Dept Dent Mat, 26 Kyungheedae Ro, Seoul 02447, South Korea;

    Seoul Natl Univ, Interdisciplinary Program Bioengn, 1 Gwanak Ro, Seoul 08826, South Korea|Seoul Natl Univ, Sch Chem & Biol Engn, 1 Gwanak Ro, Seoul 08826, South Korea;

    Kyung Hee Univ, Sch Dent, Dept Dent Educ, 26 Kyungheedae Ro, Seoul 02447, South Korea;

    Kyung Hee Univ, Sch Dent, Dept Maxillofacial Biomed Engn, Seoul 02447, South Korea;

    Univ Minho, 3Bs Res Grp Biomat Biodegradables & Biomimet, Headquarters European Inst Excellence Tissue Engn, Avepk Parque Ciencia & Tecnol,Zona Ind Gandra, P-4805017 Barco, Gmr, Portugal;

    Univ Minho, 3Bs Res Grp Biomat Biodegradables & Biomimet, Headquarters European Inst Excellence Tissue Engn, Avepk Parque Ciencia & Tecnol,Zona Ind Gandra, P-4805017 Barco, Gmr, Portugal|Kyung Hee Univ, Sch Dent, Dept Dent Mat, 26 Kyungheedae Ro, Seoul 02447, South Korea;

    Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, 291 Daehak Ro, Daejeon 34141, South Korea;

    Univ Minho, 3Bs Res Grp Biomat Biodegradables & Biomimet, Headquarters European Inst Excellence Tissue Engn, Avepk Parque Ciencia & Tecnol,Zona Ind Gandra, P-4805017 Barco, Gmr, Portugal;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Titanium implant; Initiated chemical vapor deposition; Bone morphogenetic protein 2; Human adipose derived stem cell; Bone tissue regeneration;

    机译:钛植入物;化学气相沉积;骨形态发生蛋白2;人脂肪来源的干细胞;骨组织再生;

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