Ginsenoside Rg1 protects against H2O2‑induced neuronal damage due to inhibition of the NLRP1 inflammasome signalling pathway in hippocampal neurons in�vitro
| Autor: | Xiao‑Yan Shen, Tan‑Zhen Xu, Ling‑Ling Sun, Bi‑Qiong Zhang, Weizu Li, Da‑Ke Huang, Yali Chen |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Senescence Ginsenosides Inflammasomes hippocampal neurons Interleukin-1beta Apoptosis NLR Proteins Nerve Tissue Proteins Hippocampal formation medicine.disease_cause Hippocampus 03 medical and health sciences 0302 clinical medicine Genetics medicine Animals Cells Cultured Neuroinflammation Neurons chemistry.chemical_classification Reactive oxygen species NADPH oxidase reactive oxygen species oxidative stress biology NADPH oxidase 2 Caspase 1 Interleukin-18 Inflammasome Articles Hydrogen Peroxide General Medicine beta-Galactosidase nucleotide-binding oligomerisation domain-like receptor protein 1 inflammasome Rats Cell biology ginsenoside Rg1 Oxidative Stress 030104 developmental biology chemistry biology.protein Reactive Oxygen Species 030217 neurology & neurosurgery Oxidative stress Central Nervous System Agents Drugs Chinese Herbal Signal Transduction medicine.drug |
| Zdroj: | International Journal of Molecular Medicine |
| ISSN: | 1791-244X 1107-3756 |
| Popis: | Oxidative stress and neuroinflammation are important in the pathogenesis of ageing and age‑related neurodegenerative diseases, including Alzheimer's disease. NADPH oxidase 2 (NOX2) is a major source of reactive oxygen species (ROS) in the brain. The nucleotide‑binding oligomerisation domain (NOD)‑like receptor protein 1 (NLRP1) inflammasome is responsible for the formation of pro‑inflammatory molecules in neurons. Whether the NOX2‑NLRP1 inflammasome signalling pathway is involved in neuronal ageing and age‑related damage remains to be elucidated. Ginsenoside Rg1 (Rg1) is a steroidal saponin found in ginseng. In the present study, the primary hippocampal neurons were treated with H2O2 (200 µM) and Rg1 (1, 5 and 10 µM) for 24 h to investigate the protective effects and mechanisms of Rg1 on H2O2‑induced hippocampal neuron damage, which mimics age‑related damage. The results showed that H2O2 treatment significantly increased ROS production and upregulated the expression of NOX2 and the NLRP1 inflammasome, and led to neuronal senescence and damage to hippocampal neurons. Rg1 decreased ROS production, reducing the expression of NOX2 and the NLRP1 inflammasome in H2O2‑treated hippocampal neurons. Furthermore, Rg1 and tempol treatment significantly decreased neuronal apoptosis and the expression of β‑galactosidase, and alleviated the neuronal senescence and damage induced by H2O2. The present study indicates that Rg1 may reduce NOX2‑mediated ROS generation, inhibit NLRP1 inflammasome activation, and inhibit neuronal senescence and damage. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|