来自强力加载的牙周带干细胞的脱细胞化矩阵支持骨质生分化
Suphalak Phothichailert1, Chatvadee Kornsuthisopon1,2, Ajjima Chansaenroj3
1Center of Excellence for Dental Stem Cell Biology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand.
Scientific reports
|August 5, 2025
概括
从机械刺激的牙周带干细胞中脱细胞化的细胞外基质促进骨再生. 这种无细胞支架增强了骨质分化和矿物沉积,为牙周组织修复提供了有前途的解决方案.
科学领域:
- 生物材料科学 生物材料科学
- 干细胞生物学 干细胞生物学
- 牙周再生 牙周再生
背景情况:
- 牙周带干细胞 (hPDLSCs) 对于牙周组织的修复和对机械刺激的反应至关重要.
- 细胞外基质 (ECM) 在调节细胞行为和组织再生方面发挥着至关重要的作用.
- 开发有效的无细胞支架对于推进牙周再生疗法至关重要.
研究的目的:
- 调查从经过间歇性压力 (ICF) 的hPDLSCs中衍生出的脱细胞化ECM (dECM) 对骨质分化的影响.
- 描述ICF处理的dECM的结构和组成特性.
- 评估dECM-ICF作为促进牙周再生的支架的潜力.
主要方法:
- 在脱细胞化之前,hPDLSCs接受了ICF (1.5g/cm224小时) 并在正常或骨质基中培养.
- 使用扫描电子显微镜,能量分散式X射线光谱和蛋白质组分析进行了dECM-ICF的特征.
- 在dECM-ICF上培养了hPDLSCs,并评估了细胞增殖,活力和矿化.
主要成果:
- dECM-ICF保留了关键的ECM组件,如纤维素和I型原,表现出纤维状网络结构.
- dECM-ICF表现出极好的生物相容性,支持hPDLSC的附着,增殖和活力,没有细胞毒性.
- 与正常介质相比,dECM-ICF来自骨质基质介质的矿物沉积显著增强.
结论:
- 来自ICF治疗的hPDLSCs的dECM支持细胞生长和骨质分化.
- dECM-ICF是一种有前途的无细胞天然支架,用于促进牙周再生.
- 该研究强调了机械预条件dECM在增强再生疗法的潜力.
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