机械力应用和炎症通过独立的途径诱导骨质细胞形成
Tali Chachartchi1, Yifat Itai2,3, Rinat Tzach-Nahman1,3
1Department of Periodontology, Hadassah Faculty of Dental Medicine, Hebrew University, P.O. Box 12272, 91120, Jerusalem, Israel.
Clinical oral investigations
|September 29, 2023
概括
机械力改变了牙周带纤维细胞的功能,增加了原和RANKL. 单独的炎症会影响牙纤维细胞,而不是PDL细胞,但联合力量可能会推动骨质再吸收.
科学领域:
- 牙周生物学 牙周生物学
- 细胞和分子机制的机制.
- 生物材料和组织工程
背景情况:
- 牙周带纤维细胞 (PDLF) 在保持牙周健康方面发挥着至关重要的作用.
- 了解机械力和炎症如何影响PDLF功能,对于治疗牙周病和优化正牙治疗至关重要.
- 现有研究尚未完全阐明机械应激和炎症调解剂对PDL纤维细胞行为的联合影响.
研究的目的:
- 为了研究PDL纤维细胞在机械力,炎症条件或两者的组合下的功能反应.
- 分析细胞增殖,活力,细胞循环,原蛋白生产和OPG和RANKL等关键信号分子的变化.
- 为了将对PDL纤维细胞的影响与对牙纤维细胞 (GF) 和骨质细胞 (Saos2细胞) 的影响进行比较.
主要方法:
- 通过使用 Porphyromonas gingivalis 刺激人类中性粒细胞来制备炎症超级生物.
- 暴露初级人类PDL纤维细胞,GF和Saos2细胞的炎症超级生物.
- 使用离心法对PDLF进行正义牙机械力的模拟.
- 细胞增殖,活力,细胞循环分布,原表达,OPG和RANKL水平的评估.
主要成果:
- 机械力增加了PDLF代谢率,并将细胞循环转移到G0/G1,阻止了增殖并提高了原和RANKL水平,OPG略有增加.
- 结合机械力和炎症超标剂并没有改变PDLF的活力,增殖或细胞因子表达.
- 单独的炎症上位剂增加了GF中的RANKL表达,但对PDLF或Saos2细胞没有显著影响.
结论:
- 机械力显著调节PDLF功能,影响增殖,原合成和RANKL表达.
- 虽然仅仅炎症并没有影响PDLF或骨质母细胞,但它对牙纤维母细胞的RANKL进行了上调.
- 这项研究表明,机械力和牙周炎症之间的相互作用可能会通过不同的细胞机制促进骨代谢和再吸收.
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