相关实验视频
Updated: Jan 7, 2026

07:44
Evaluation of Synapse Density in Hippocampal Rodent Brain Slices
Published on: October 6, 2017
17.9K
与Dickkopf相关的蛋白2会损害神经血管Wnt信号,并使中风的结果恶化
Zhu Shi1, Jinrui Li1, Ziying Feng2,3
1Department of Neurology, Affiliated Dongguan Hospital, Southern Medical University (Dongguan People's Hospital), 78 Wandao Road, Dongguan, Guangdong 523059, China.
European heart journal
|December 26, 2025
概括
与Dickkopf相关的蛋白2 (DKK2) 在缺血性中风后加剧大脑损伤. 在临床前模型中抑制DKK2减少了中风的严重程度,并保护了血脑屏障,表明DKK2是潜在的治疗点.
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
- 病理生理学 病理生理学
背景情况:
- 缺血性中风是导致死亡和残疾的主要原因.
- 目前对中风的治疗有局限性,包括狭窄的治疗窗口和并发症风险.
- 与Dickkopf相关的蛋白2 (DKK2) 被研究为中风病理生理学的潜在因素和治疗标.
研究的目的:
- 为了研究Dickkopf相关蛋白2 (DKK2) 在缺血性中风中的作用.
- 探索DKK2作为潜在的中风治疗治疗点.
主要方法:
- 在老鼠模型中分析了DKK2水平的短暂的中脑动脉封闭 (tMCAO) 和中风患者.
- 利用基因淘汰,病毒向和药理抑制来评估DKK2的因果作用和治疗潜力.
- 研究了视网膜X受体α (RXRα) 的DKK2调节及其对神经元损伤和血脑屏障 (BBB) 完整性的影响.
主要成果:
- 在tMCAO后的小鼠的大脑和血清中,DKK2的调节显著上升.
- 血清DKK2水平升高与较大的心脏病发作量,内出血 (ICH) 和中风患者的恶化结果相关.
- 在小鼠中,DKK2过度表达加重了中风的结果,而DKK2抑制改善了心脏病发作,神经缺陷和BBB破坏.
- 由RXRα上调的DKK2通过抑制Wnt信号传递促进了神经元死亡和BBB干扰.
结论:
- DKK2通过影响神经元存活率和BBB完整性,在缺血性中风进展中发挥着关键作用.
- 针对DKK2显示为治疗缺血性脑损伤的治疗策略.
- 人类数据支持针对脑血管病理的DKK2的翻译潜力.
相关概念视频
Canonical Wnt Signaling Pathway
10.3K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
10.3K
Regulation of Angiogenesis and Blood Supply
3.3K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
3.3K
Non-Canonical Wnt Signaling Pathways
8.2K
Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
8.2K

