纤维素B倒置通过异常转录和替代拼接损害了小鼠前骨质细胞的分化和功能
Xi Wang1,2,3, Qiyu Jia2, Li Yu4
1State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Clinical Medicine Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang, China.
Heliyon
|November 5, 2024
概括
纤维素B (FLNB) 敲除通过调节基因转录和替代拼接来抑制骨质细胞的增殖,迁移和分化,影响骨发育. 这凸显了FLNB在骨生长中的关键作用.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 骨生物学 骨生物学
背景情况:
- 胺B (FLNB) 是一种与细胞运动和信号传导有着已知的作用的活性蛋白结合蛋白.
- 此外,FLNB在骨生长和骨发育中起着至关重要的作用.
- 它作为骨系统中的RNA结合蛋白的功能尚未完全理解.
研究的目的:
- 为了研究FLNB在骨系统中的功能.
- 为了描述FLNB在小鼠前骨质细胞 (MC3T3-E1) 中的淘汰效应.
- 在骨质细胞分化过程中识别FLNB调节的基因和通路.
主要方法:
- 建设稳定的FLNB淘汰MC3T3-E1细胞.
- 用于基因表达和替代拼接事件 (ASE) 分析的RNA测序 (RNA-seq).
- 功能性检测包括跨井迁移,MTT,ALP活动,qPCR,西斑和阿利沙林红色染色.
主要成果:
- FLNB的淘汰导致了参与骨质细胞增殖,分化和迁移的基因的差异表达 (例如,ITGA10,Cebpβ,Grem1).
- 在与骨发育相关的基因,特别是Tpx2和Evc的替代拼接 (AS) 中观察到显著的变化.
- 功能分析表明,与对照细胞相比,FLNB-knockdown细胞的增殖,迁移和分化受到抑制.
结论:
- FLNB参与调节基因转录和替代拼接,这对骨质母细胞的发育和功能至关重要.
- FLNB的淘汰会对MC3T3-E1骨前细胞的生长和发育产生负面影响.
- 这些发现强调了FLNB在骨发育和骨质生成中的重要性.
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