装有甲化丝纤维纤维甲化支架,用于管理周围损伤
Ashley Silverberg1, Lais M Cardoso1,2, Ana Beatriz G de Carvalho1,3
1Department of Cariology, Restorative Sciences and Endodontics, University of Michigan, School of Dentistry, 1011 N. University Avenue, Room 2303, Ann Arbor, MI, 48109, USA.
Odontology
|November 10, 2024
概括
这项研究开发了带有甲化丝纤维素 (SilkMA) 支架的甲化丝纤维素 (SilkMA) 支架,用于骨再生和对周围损伤的感染控制. 装有MET的SilkMA支架表现出增强的机械性能,生物相容性和对关键病原体的强烈抗菌活性.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 牙周内科医院 牙周内科医院 牙周内科医院
背景情况:
- 周周病变在内牙科手术中带来了挑战,需要促进骨再生和控制感染的材料.
- 丝纤维素甲化 (SilkMA) 支架为组织工程应用提供了一个有希望的基础.
- 甲尼达 (MET) 是一种有效的抗生素,用于对抗内牙感染中普遍存在的无氧细菌.
研究的目的:
- 开发和表征SilkMA电支架,结合MET,用于管理感染,并支持根末切除的周周病变中骨再生.
- 评估MET装载的SilkMA支架的物理,化学,机械,细胞兼容性,抗炎和抗菌特性.
- 评估这些复合支架在内牙再生疗法中使用的潜力.
主要方法:
- 具有不同MET度 (0-30%w/w) 的SilkMA配方进行了电和光交联.
- 支架经历了全面的表征:形态,化学成分,胀,降解,机械测试和细胞相容性测试与aBMSCs和SCAPs.
- 对抗细菌疗效的测试是针对Aggregatibacter actinomycetemcomitans (Aa) 和Fusobacterium nucleatum (Fn),包括对Aa生物膜的抑制.
- 通过测量互白素-6合成来评估抗炎潜力.
主要成果:
- 融入MET影响了脚手架纤维直径,并得到了化学证实.
- 装有30%MET的脚手架显示,胀减少,完全降解42天,增强了刚性和抗拉强度.
- 所有配方与aBMSCs和SCAPs细胞相容.
- 观察到Aa和Fn的显著抑制,其中30%的MET支架有效抑制了Aa生物膜.
- 在30%MET.的支架上发现了减少的促炎性细胞因子IL-6合成.
结论:
- 装有MET的SilkMA支架表现出有利的机械性能,生物相容性,以及对相关病原体的强有力的抗菌活性.
- 这些带有MET的SilkMA支架显示出控制感染和促进内牙外科手术后周周病变骨再生的巨大潜力.
- 开发的复合材料代表了一种有前途的策略,用于提高内牙再生程序的结果.
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