安克介导的酸盐调节了3D培养骨细胞中剪切压力诱导的小细胞外囊泡的产生
Su Jeong Lee1, Deuk Kju Jung1, Soomin Im1
1Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Institute for Hard Tissue and Bio-tooth Regeneration (IHBR), Kyungpook National University, Daegu, Republic of Korea.
Animal cells and systems
|October 24, 2024
概括
液体剪切应激增强3D培养骨细胞中的小细胞外囊泡 (sEV) 生产. 这个过程是由通过Ank,一个关键的运输器,通过酸盐运输来调节的.
科学领域:
- 生物医学工程 生物医学工程
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 骨细胞,关键的骨细胞,通过小细胞外囊泡 (sEVs) 进行通信.
- 控制骨细胞中sEV生成的精确机制在很大程度上是未知的.
- 了解骨细胞通信对于骨健康研究至关重要.
研究的目的:
- 研究在液体剪切应力下骨细胞中sEV生产的调节.
- 阐明涉及剪切应力诱导的sEV释放的特定分子机制.
主要方法:
- 在3D双相酸盐 (BCP) 支架上培养MLO-Y4骨细胞.
- 使用 perfusion 系统施加液体剪切应力.
- 通过RNA测序,抑制剂研究和基因过度表达来分析sEV的产生和基因表达.
主要成果:
- 液体剪切应激显著增强了与sEV生物发生和分泌相关的基因在3D培养骨细胞中.
- 剪切应力上调了Ank的表达,这是一个酸盐输送体.
- 用probenecid抑制Ank减少了sEV的产生,而Ank过度表达增加了它. 酸盐的添加挽救了抑制.
结论:
- 在3D骨细胞中,剪切压力介导的sEV产生受细胞外酸盐的调节.
- 安克在酸盐的运输中起着至关重要的作用,从而调节sEV的释放.
- 这项研究揭示了一种新的骨细胞通信机制.
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