在口腔下粘膜纤维化中,TGF-β1引导TFAM介导的线粒体重编程
K M Desai1,2, N A Tadkalkar3, M Amin1
1Oral Biology, Surgery, and Biomedical Engineering, University at Buffalo, Buffalo, NY, USA.
Journal of dental research
|December 9, 2025
概括
转化生长因子-β (TGF-β) 通过调节线粒体功能,促进生存和纤维化表型,从阿雷科林诱导的细胞死亡中拯救口腔纤维细胞. 向线粒体可能为口腔下纤维化 (OSMF) 提供一种新的治疗策略.
科学领域:
- 细胞生物学 细胞生物学
- 线粒体的生物能量学
- 纤维化研究 纤维化研究
背景情况:
- 口腔膜纤维化 (OSMF) 涉及到持久的,过度活跃的纤维细胞,其代谢和细胞骨变化发生了改变.
- 阿雷科林和转化生长因子-β (TGF-β) 是关键的调解者,涉及到OSMF的病原性.
- 了解纤维细胞行为和线粒体动态对于开发有效的OSMF治疗至关重要.
研究的目的:
- 评估阿雷科林和TGF-β对线粒体生物能学和口腔纤维细胞的表型的影响.
- 研究线粒体分裂和融合在阿雷科林和TGF-β诱导的纤维细胞反应中的作用.
- 将体外发现与人类OSMF组织样本中的临床观察结果相关联.
主要方法:
- 人口纤维细胞被用阿雷科林,TGF-β1和组合治疗.
- 评估了细胞存活率,线粒体融合/裂变 (OPA-1,MFN-2,DRP-1),以及代谢概况 (TFAM,hexokinase II).
- 使用实时PCR,免疫光,海马分析和对档案OSMF患者活检的分析.
主要成果:
- 阿拉科林诱导了显著的口腔纤维细胞死亡,由TGF-β1.1拯救.
- 阿雷科林促进了线粒体裂变和糖溶性代谢特征,而TGF-β1诱导了线粒体融合.
- 组合治疗改善了细胞存活率和线粒体生物能学,与增加的TFAM和维丁-动氨酸 (VA) 表达相关,这表明了益菌性表型.
结论:
- TGF-β1调节线粒体对阿雷科林诱导的细胞毒性反应,促进纤维细胞存活和亲纤维细胞表型.
- 在先进的OSMF临床样本中增加的TFAM和VA阳性纤维细胞证实了体外发现.
- 针对幸存的肌纤维细胞中的线粒体,为OSMF提供了一个潜在的新疗法策略.
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