将抗氧化剂富勒烯醇加入磷酸钙骨水泥中可增加细胞成骨能力,同时不影响骨水泥的物理特性。

Incorporating the Antioxidant Fullerenol into Calcium Phosphate Bone Cements Increases Cellular Osteogenesis without Compromising Physical Cement Characteristics.

作者信息

Duru İlayda, Büyük Nisa Irem, Köse Gamze Torun, Marques Dylan Widder, Bruce Karina Ann, Martin John Robert, Ege Duygu

机构信息

Institute of Biomedical Engineering Boğaziçi University Rasathane Street, Üsküdar, İstanbul 34684, Turkey.

Department of Genetics and Bioengineering Faculty of Engineering Yeditepe University Ataşehir, İstanbul 34755, Turkey.

出版信息

Adv Eng Mater. 2023 Sep;25(17). doi: 10.1002/adem.202300301. Epub 2023 Jun 24.

Abstract

Herein, fullerenol (Ful), a highly water-soluble derivative of C fullerene with demonstrated antioxidant activity, is incorporated into calcium phosphate cements (CPCs) to enhance their osteogenic ability. CPCs with added carboxymethyl cellulose/gelatin (CMC/Gel) are doped with biocompatible Ful particles at concentrations of 0.02, 0.04, and 0.1 wt v% and evaluated for Ful-mediated mechanical performance, antioxidant activity, and in vitro cellular osteogenesis. CMC/gel cements with the highest Ful concentration decrease setting times due to increased hydrogen bonding from Ful's hydroxyl groups. In vitro studies of reactive oxygen species (ROS) scavenging with CMC/gel cements demonstrate potent antioxidant activity with Ful incorporation and cement scavenging capacity is highest for 0.02 and 0.04 wt v% Ful. In vitro cytotoxicity studies reveal that 0.02 and 0.04 wt v% Ful cements also protect cellular viability. Finally, increase of alkaline phosphatase (ALP) activity and expression of runt-related transcription factor 2 (Runx2) in MC3T3-E1 pre-osteoblast cells treated with low-dose Ful cements demonstrate Ful-mediated osteogenic differentiation. These results strongly indicate that the osteogenic abilities of Ful-loaded cements are correlated with their antioxidant activity levels. Overall, this study demonstrates exciting potential of Fullerenol as an antioxidant and proosteogenic additive for improving the performance of calcium phosphate cements in bone reconstruction procedures.

摘要

在此,富勒烯醇(Ful)是一种具有抗氧化活性的高度水溶性C60衍生物,被掺入磷酸钙骨水泥(CPC)中以增强其成骨能力。添加了羧甲基纤维素/明胶(CMC/Gel)的CPC分别掺杂了浓度为0.02、0.04和0.1 wt v%的生物相容性Ful颗粒,并对Ful介导的力学性能、抗氧化活性和体外细胞成骨进行了评估。Ful浓度最高的CMC/凝胶骨水泥由于Ful羟基形成的氢键增加而缩短了凝固时间。用CMC/凝胶骨水泥清除活性氧(ROS)的体外研究表明,掺入Ful具有强大的抗氧化活性,且0.02和0.04 wt v%的Ful的骨水泥清除能力最高。体外细胞毒性研究表明,0.02和0.04 wt v%的Ful骨水泥也能保护细胞活力。最后,用低剂量Ful骨水泥处理的MC3T3-E1前成骨细胞中碱性磷酸酶(ALP)活性的增加和 runt相关转录因子2(Runx2)的表达表明了Ful介导的成骨分化。这些结果有力地表明,负载Ful的骨水泥的成骨能力与其抗氧化活性水平相关。总体而言,本研究证明了富勒烯醇作为一种抗氧化和促骨生成添加剂在改善骨重建过程中磷酸钙骨水泥性能方面具有令人兴奋的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ade4/10656051/05b1d6b8d427/nihms-1915638-f0001.jpg

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