Details
- Autor(en) / Beteiligte
- Titel
- Paeoniflorin protects against ischemia-induced brain damages in rats via inhibiting MAPKs/NF-κB-mediated inflammatory responses
- Ist Teil von
- PloS one, 2012-11, Vol.7 (11), p.e49701
- Ort / Verlag
- United States: Public Library of Science
- Erscheinungsjahr
- 2012
- Link zum Volltext
- Quelle
- Free E-Journal (出版社公開部分のみ）
- Beschreibungen/Notizen
- Paeoniflorin (PF), the principal component of Paeoniae Radix prescribed in traditional Chinese medicine, has been reported to exhibit many pharmacological effects including protection against ischemic injury. However, the mechanisms underlying the protective effects of PF on cerebral ischemia are still under investigation. The present study showed that PF treatment for 14 days could significantly inhibit transient middle cerebral artery occlusion (MCAO)-induced over-activation of astrocytes and microglia, and prevented up-regulations of pro-inflamamtory mediators (TNFα, IL-1β, iNOS, COX(2) and 5-LOX) in plasma and brain. Further study demonstrated that chronic treatment with PF suppressed the activations of JNK and p38 MAPK, but enhanced ERK activation. And PF could reverse ischemia-induced activation of NF-κB signaling pathway. Moreover, our in vitro study revealed that PF treatment protected against TNFα-induced cell apoptosis and neuronal loss. Taken together, the present study demonstrates that PF produces a delayed protection in the ischemia-injured rats via inhibiting MAPKs/NF-κB mediated peripheral and cerebral inflammatory response. Our study reveals that PF might be a potential neuroprotective agent for stroke.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1932-6203eISSN: 1932-6203DOI: 10.1371/journal.pone.0049701Titel-ID: cdi_plos_journals_1339168717
- Format
- –
- Schlagworte
- Activation, Animals, Anti-Inflammatory Agents, Non-Steroidal - administration & dosage, Anti-Inflammatory Agents, Non-Steroidal - pharmacology, Apoptosis, Astrocytes, Astrocytes - drug effects, Astrocytes - metabolism, bcl-2-Associated X Protein - genetics, bcl-2-Associated X Protein - metabolism, Benzoates - administration & dosage, Benzoates - pharmacology, Biology, Brain, Brain - drug effects, Brain - metabolism, Brain - pathology, Brain damage, Brain Ischemia - drug therapy, Brain Ischemia - metabolism, Brain research, Bridged-Ring Compounds - administration & dosage, Bridged-Ring Compounds - pharmacology, Carotid arteries, Cerebral blood flow, Cerebral Infarction - drug therapy, Cerebral Infarction - metabolism, Cerebral Infarction - pathology, Chinese medicine, Cyclooxygenase 2 - metabolism, Cyclooxygenase-2, Cytochromes c - genetics, Cytochromes c - metabolism, Cytokines, Disease Models, Animal, Gene Expression Regulation - drug effects, Glucosides - administration & dosage, Glucosides - pharmacology, Hippocampus - drug effects, Hypoxia, IL-1β, Inflammation, Inflammation - drug therapy, Inflammation - metabolism, Inflammatory response, Interleukin-1beta - blood, Interleukin-1beta - genetics, Ischemia, JNK protein, Kinases, Laboratory animals, Lipoxygenase - metabolism, Liquid oxygen, Male, MAP kinase, Medicine, Microglia, Microglia - drug effects, Microglia - metabolism, Mitogen-Activated Protein Kinases - antagonists & inhibitors, Mitogen-Activated Protein Kinases - metabolism, Monoterpenes, Neurodegeneration, Neurons - drug effects, Neurons - metabolism, Neuroprotection, NF-kappa B - antagonists & inhibitors, NF-kappa B - metabolism, NF-κB protein, Nitric Oxide Synthase Type II - metabolism, Nitric-oxide synthase, Occlusion, Paeonia lactiflora, Pharmacology, Proto-Oncogene Proteins c-bcl-2 - genetics, Proto-Oncogene Proteins c-bcl-2 - metabolism, Rats, Rodents, Signal transduction, Signal Transduction - drug effects, Signaling, Stroke, Traditional Chinese medicine, Tumor Necrosis Factor-alpha - blood, Tumor Necrosis Factor-alpha - genetics, Tumor necrosis factor-TNF, Tumor necrosis factor-α, Veins & arteries