在炎症性微环境中,LL-37调节了牙纸干细胞的牙致分化
Yunfeng Ma1, Xinyuan Liu1, Ruoxi Dai2
1Key Lab. of Oral Diseases Research, College and Hospital of Stomatology, Anhui Medical University, Hefei, 230032, Anhui Province, China.
Stem cell research & therapy
|December 19, 2024
概括
聚酸LL-37促进牙髓干细胞迁移和牙产生差异化,同时减少炎症和炎症环境中的衰老标志物. 这种对再生性内牙科和治疗脉炎有前途.
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
- 再生医学是一种再生医学.
背景情况:
- 炎症会导致牙纸不可逆转的损伤.
- 牙纸干细胞 (DPSCs) 对于纸修复至关重要,但由于炎症而受损.
- LL-37是一种具有已知的抗微生物和细胞招募特性的,但其在再生性内牙科中的作用尚未被探索.
研究的目的:
- 调查LL-37在促进DPSC迁移和炎症微环境中的牙产生的差异化中的调控作用.
- 为LL-37在再生性脉治疗中的应用建立一个实验基础.
主要方法:
- 分离和识别了DPSC.
- 使用CCK-8试验评估了LL-37对DPSC扩散的影响.
- 使用Transwell试验评估了DPSC迁移.
- 炎症和衰老标志物的基因表达 (例如,TNF-α,IL-1β,IL-6,P21,P38,P53) 通过RT-PCR,西方斑点和ELISA进行了分析.
- 通过ALP染色,阿利沙林红色染色和牙相关基因的RT-PCR分析 (DMP1,DSPP,BSP) 评估了牙的分化.
主要成果:
- LL-37显著增强了DPSC的迁移.
- 在炎症微环境中的DPSC中,LL-37抑制了炎症和衰老基因表达.
- LL-37促进了DPSC的牙产生差异化,通过增加ALP活性,结节的形成和牙基质蛋白的表达来证明这一点.
结论:
- LL-37促进DPSC迁移,在解决炎症和促进炎症条件下的细胞分化方面发挥关键作用.
- LL-37显示出作为一种创新的治疗药物,用于治疗炎症性牙纸疾病的显著潜力.
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