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丹酚酸A激活Nrf2相关信号通路以抑制铁死亡从而改善缺血性中风。

Salvianolic Acid A Activates Nrf2-Related Signaling Pathways to Inhibit Ferroptosis to Improve Ischemic Stroke.

作者信息

Shang Yu-Fu, Feng Wan-Di, Liu Dong-Ni, Zhang Wen-Fang, Xu Shuang, Feng Dan-Hong, Du Guan-Hua, Wang Yue-Hua

机构信息

Beijing Key Laboratory of Innovative Drug Discovery and Polymorphic Druggability Research for Cerebrovascular Diseases, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.

出版信息

Molecules. 2025 Aug 4;30(15):3266. doi: 10.3390/molecules30153266.


DOI:10.3390/molecules30153266
PMID:40807440
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12348739/
Abstract

Ischemic stroke is a serious disease that frequently occurs in the elderly and is characterized by a complex pathophysiology and a limited number of effective therapeutic agents. Salvianolic acid A (SAL-A) is a natural product derived from the rhizome of , which possesses diverse pharmacological activities. This study aims to investigate the effect and mechanisms of SAL-A in inhibiting ferroptosis to improve ischemic stroke. Brain injury, oxidative stress and ferroptosis-related analysis were performed to evaluate the effect of SAL-A on ischemic stroke in photochemical induction of stroke (PTS) in mice. Lipid peroxidation levels, antioxidant protein levels, tissue iron content, nuclear factor erythroid 2-related factor 2 (Nrf2), and mitochondrial morphology changes were detected to explore its mechanism. SAL-A significantly attenuated brain injury, reduced malondialdehyde (MDA) and long-chain acyl-CoA synthase 4 (ACSL4) levels. In addition, SAL-A also amplified the antioxidative properties of glutathione (GSH) when under glutathione peroxidase 4 (GPX4), and the reduction in ferrous ion levels. In vitro, brain microvascular endothelial cells (b.End.3) exposed to oxygen-glucose deprivation/reoxygenation (OGD/R) were used to investigate whether the anti-stroke mechanism of SAL-A is related to Nrf2. Following OGD/R, ML385 (Nrf2 inhibitor) prevents SAL-A from inhibiting oxidative stress, ferroptosis, and mitochondrial dysfunction in b.End.3 cells. In conclusion, SAL-A inhibits ferroptosis to ameliorate ischemic brain injury, and this effect is mediated through Nrf2.

摘要

缺血性中风是一种常见于老年人的严重疾病,其病理生理学复杂,有效治疗药物数量有限。丹酚酸A(SAL-A)是一种从丹参根茎中提取的天然产物,具有多种药理活性。本研究旨在探讨SAL-A抑制铁死亡以改善缺血性中风的作用及机制。通过脑损伤、氧化应激和铁死亡相关分析,评估SAL-A对小鼠光化学诱导中风(PTS)缺血性中风的影响。检测脂质过氧化水平、抗氧化蛋白水平、组织铁含量、核因子红细胞2相关因子2(Nrf2)和线粒体形态变化,以探讨其机制。SAL-A显著减轻脑损伤,降低丙二醛(MDA)和长链脂酰辅酶A合成酶4(ACSL4)水平。此外,SAL-A在谷胱甘肽过氧化物酶4(GPX4)存在的情况下还增强了谷胱甘肽(GSH)的抗氧化特性,并降低了亚铁离子水平。在体外,使用暴露于氧糖剥夺/复氧(OGD/R)的脑微血管内皮细胞(b.End.3)来研究SAL-A的抗中风机制是否与Nrf2有关。在OGD/R后,ML385(Nrf2抑制剂)可阻止SAL-A抑制b.End.3细胞中的氧化应激、铁死亡和线粒体功能障碍。总之,SAL-A通过抑制铁死亡改善缺血性脑损伤,且该作用是通过Nrf2介导的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d318/12348739/ae8957b306e9/molecules-30-03266-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d318/12348739/9ec11e62f78f/molecules-30-03266-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d318/12348739/a567e94e8e0b/molecules-30-03266-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d318/12348739/3d067f11b76d/molecules-30-03266-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d318/12348739/b317fb7f765d/molecules-30-03266-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d318/12348739/ae8957b306e9/molecules-30-03266-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d318/12348739/9ec11e62f78f/molecules-30-03266-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d318/12348739/a567e94e8e0b/molecules-30-03266-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d318/12348739/3d067f11b76d/molecules-30-03266-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d318/12348739/b317fb7f765d/molecules-30-03266-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d318/12348739/ae8957b306e9/molecules-30-03266-g005.jpg

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本文引用的文献

[1]
Ciprofol Ameliorates Myocardial Ischemia/Reperfusion Injury by Inhibiting Ferroptosis Through Upregulating HIF-1α.

Drug Des Devel Ther. 2024-12-18

[2]
Salvianolic acid A provides neuroprotective effects on cerebral ischemia-reperfusion injury in rats via PKA/CREB/c-Fos signaling pathway.

Phytomedicine. 2024-2

[3]
The role of ferroptosis and its mechanism in ischemic stroke.

Exp Neurol. 2024-2

[4]
Metal profiling in coronary ischemia-reperfusion injury: Implications for KEAP1/NRF2 regulated redox signaling.

Free Radic Biol Med. 2024-1

[5]
Polyphyllin I induced ferroptosis to suppress the progression of hepatocellular carcinoma through activation of the mitochondrial dysfunction via Nrf2/HO-1/GPX4 axis.

Phytomedicine. 2024-1

[6]
Caffeic acid alleviates cerebral ischemic injury in rats by resisting ferroptosis via Nrf2 signaling pathway.

Acta Pharmacol Sin. 2024-2

[7]
Ferroptosis and endoplasmic reticulum stress in ischemic stroke.

Neural Regen Res. 2024-3

[8]
Naotaifang formula attenuates OGD/R-induced inflammation and ferroptosis by regulating microglial M1/M2 polarization through BMP6/SMADs signaling pathway.

Biomed Pharmacother. 2023-11

[9]
Targeting Nrf2 for ferroptosis-based therapy: Implications for overcoming ferroptosis evasion and therapy resistance in cancer.

Biochim Biophys Acta Mol Basis Dis. 2023-10

[10]
Eriodictyol regulated ferroptosis, mitochondrial dysfunction, and cell viability via Nrf2/HO-1/NQO1 signaling pathway in ovarian cancer cells.

J Biochem Mol Toxicol. 2023-7

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