相关实验视频
Updated: Aug 16, 2026
05:30
Controlled Cortical Impact Model for Traumatic Brain Injury
Published on: August 5, 2014
28.6K
MiR-3571通过Fbxo31调节PI3K/AKT信号通路来调节创伤性脑损伤
Yang Zhang1, Zongying He1, Qiongfang Hu1
1Department of Rehabilitation Medicine, Qujing No.1 Hospital, Qujing, 655000, Yunnan, China.
Cell biochemistry and biophysics
|July 30, 2024
概括
微RNA-3571 (miR-3571) 通过促进神经元亡来加剧创伤性脑损伤 (TBI). 抑制miR-3571通过降低F-box-only蛋白31 (Fbxo31) 和PI3K/AKT通路的调节来缓解TBI.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 创伤性脑损伤 (TBI) 是导致死亡和残疾的重要原因.
- 神经细胞亡和炎症是TBI中的关键病理过程.
- 微RNAs (miRNAs) 在调节细胞过程中起着至关重要的作用,包括细胞亡.
研究的目的:
- 为了调查miR-3571在TBI中的作用.
- 通过Fbxo31/PI3K/AKT通路阐明miR-3571对神经元亡的调节机制.
主要方法:
- 建立TBI老鼠和细胞模型.
- 组织病理学分析 (HE和Nissl染色).
- 细胞增殖和细胞亡的评估 (EdU,TUNEL,流细胞计).
- 基因和蛋白质表达分析 (RT-qPCR,西式涂抹,ELISA).
主要成果:
- 在TBI模型中,miR-3571被调高了.
- 抑制miR-3571抑制了自,减少了促炎细胞因子,减少了神经元亡,缓解了TBI病理.
- miR-3571针对性和调节的Fbxo31表达.
- 而Fbxo31的过度表达显示出保护作用.
- PI3K/AKT路径抑制剂LY294002恶化了TBI,并降低了Fbxo31的保护作用.
结论:
- miR-3571通过降低Fbxo31的调节和激活PI3K/AKT信号通路,促进神经元亡并加剧TBI.
- 准miR-3571可能是TBI的治疗策略.
相关概念视频
01:19Interactions Between Signaling Pathways
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
01:20The JAK-STAT Signaling Pathway
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
01:22PI3K/mTOR/AKT Signaling Pathway
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a rapamycin-insensitive companion...