瑞卢可通过依赖SLC7A11的GPX4和HIF-1α/VEGFA信号传输来保护缺血性中风中大脑内皮质完整性
Haipeng Wang1, Ying Feng2, Wei Jiang1
1College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
Cellular signalling
|February 2, 2026
概括
利鲁通过激活SLC7A11载体来保护大脑细胞,增强抗氧化防御和血管生长. 这种双重作用改善了中风模型的结果,揭示了新的治疗潜力.
科学领域:
- 神经科学是一个神经科学.
- 生物化学 生物化学
- 血管生物学 血管生物学
背景情况:
- 缺血性中风会导致严重的脑损伤.
- 利鲁是一种FDA批准的药物,具有神经保护性质.
- 囊/谷氨酸抗载体SLC7A11在中风中的作用尚未完全理解.
研究的目的:
- 调查riluzole在缺血性中风中的治疗潜力.
- 为了确定依赖于大脑内皮细胞中瑞卢的保护作用的分子机制.
- 探索SLC7A11在调解瑞卢的脑血管保护中的作用.
主要方法:
- 在氧气-葡萄糖剥夺/再输液 (OGD/R) 下对人类大脑的微血管内皮细胞 (hBMEC) 进行转录形状分析.
- 评估瑞卢对SLC7A11活性和下游通路 (GPX4,HIF-1α/VEGFA) 的影响.
- 在小鼠中风模型中评估riluzole的疗效,包括血脑屏障的完整性和神经功能.
主要成果:
- 瑞卢在接受OGD/R.R.的hBMEC中激活SLC7A11.
- 瑞卢激活SLC7A11,可以调节抗氧化剂GPX4和益血管性HIF-1α/VEGFA.
- 利卢治疗减少了内皮损伤,血脑屏障的破坏,并在小鼠中风模型中改善了神经结果.
结论:
- 瑞卢通过激活SLC7A11.11来产生脑血管保护作用.
- 这种激活触发了一种双重机制,包括增强的抗氧化能力和益血管性信号传递.
- SLC7A11是riluzole在缺血性中风中的治疗益处的关键调解者,扩大其已知的生物作用.
相关概念视频
01:19Contact-dependent Signaling
47.0K
Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
Gap Junctions
In animal cells, gap junctions are formed...
47.0K
02:39The Integrated Rate Law: The Dependence of Concentration on Time
41.7K
While the differential rate law relates the rate and concentrations of reactants, a second form of rate law called the integrated rate law relates concentrations of reactants and time. Integrated rate laws can be used to determine the amount of reactant or product present after a period of time or to estimate the time required for a reaction to proceed to a certain extent. For example, an integrated rate law helps determine the length of time a radioactive material must be stored for its...
41.7K
01:16Calmodulin-dependent Signaling
6.2K
Calmodulin (CaM) is a calcium-binding protein in eukaryotes that controls various calcium-regulated cellular processes. It has four calcium-binding sites that bind calcium to form the calcium-calmodulin ( Ca2+-CaM) complex. GPCR stimulation increases the calcium levels in the cells that bind to CaM and induces a conformational change.
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
6.2K
02:26NF-κB-dependent Signaling Pathway
10.0K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
10.0K
00:58¹H NMR Signal Integration: Overview
3.6K
The intensity of a signal, which can be represented by the area under the peak, depends on the number of protons contributing to that signal. The area under each peak is shown as a vertical line called an integral, with the integral value listed under it, as seen in the proton NMR spectrum of benzyl acetate. Each integral value is divided by the smallest integral value to obtain the ratio of the number of protons producing each signal. The ratio reveals the relative number of protons and not...
3.6K
01:21Paracrine Signaling
59.6K
Paracrine signaling allows cells to communicate with their immediate neighbors via secretion of signaling molecules. Such a signal can only trigger a response in nearby target cells because the signal molecules degrade quickly or are inactivated if not taken up. Prominent examples of paracrine signaling include nitric oxide signaling in blood vessels, synaptic signaling of neurons, the blood clotting system, tissue repair/wound healing, and local allergic skin reactions. Nitric oxide as a...
59.6K