ArticleActa pharmacologica Sinica2023
Oridonin ameliorates caspase-9-mediated brain neuronal apoptosis in mouse with ischemic stroke by inhibiting RIPK3-mediated mitophagy.
Article in Acta pharmacologica Sinica, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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26 citing papers in PubMed, 42 citations in OpenAlex.
- Unveiling the "Glycolysis-Lactate-Lactylation" Axis: A Novel Target in Ischemic Cerebrovascular Disease.Neuroscience bulletin · 2026Review
- Small-Molecule NANT Therapeutics Targeting the Brain-Immune Axis in Alzheimer's Disease: Mechanisms, Clinical Progress, and Translational Challenges.Molecules (Basel, Switzerland) · 2026Review
- Mechanisms and Therapeutic Potential of Targeting Mitophagy in Neurodegenerative Diseases.Molecular neurobiology · 2026Review
- BTG2 knockdown attenuates oxygen-glucose deprivation/reoxygenation-induced injury and apoptosis in PC12 cells: an effect associated with MAPK pathway inhibition.Molecular biology reports · 2026Article
- Nrf2/SLC7A11/GPX4 pathway, a potential target of oridonin in inhibiting ferroptosis during cerebral ischemia-reperfusion injury progression.Scientific reports · 2026Article
- Cerebral Ischemia-Reperfusion Injury: Unraveling the Mitophagy-Oxidative Stress Axis for Neuroprotective Strategies.International journal of molecular sciences · 2026Review
- Restricting Synaptotagmin-3 Internalization Mitigates Cerebral Ischemia/Reperfusion Injury by Curtailed Neuronal Apoptosis and Microglial Re-Programming.CNS neuroscience & therapeutics · 2026Article
- Effects and Mechanisms of Dietary Natural Products on Ischemic Stroke: An Updated Review.Food science & nutrition · 2025Review
- A novel strategy for the protective effect of ginsenoside Rg1 against ovarian reserve decline by the PINK1 pathway.Pharmaceutical biology · 2025Article
- Mitophagy in Brain Injuries: Mechanisms, Roles, and Therapeutic Potential.Molecular neurobiology · 2025Review
- Molecular mechanisms of programmed cell death and potential targeted pharmacotherapy in ischemic stroke (Review).International journal of molecular medicine · 2025Review
- NEFL Modulates NRN1-Mediated Mitochondrial Pathway to Promote Diacetylmorphine-Induced Neuronal Apoptosis.Molecular neurobiology · 2025Article
- PANoptosis: a potential target of atherosclerotic cardiovascular disease.Apoptosis : an international journal on programmed cell death · 2025Review
- Lactylation and Ischemic Stroke: Research Progress and Potential Relationship.Molecular neurobiology · 2025Review
- Organellophagy regulates cell death:A potential therapeutic target for inflammatory diseases.Journal of advanced research · 2025Review
- Scutellarin Alleviates Neuronal Apoptosis in Ischemic Stroke via Activation of the PI3K/AKT Signaling Pathway.International journal of molecular sciences · 2025Article
- Examining the Impact of Microglia on Ischemic Stroke With an Emphasis on the Metabolism of Immune Cells.CNS neuroscience & therapeutics · 2025Review
- Research and Development Progression of Oridonin for Hematological Malignancies Therapy.Current medicinal chemistry · 2025Review
- Dynamic mechanisms and targeted interventions in cerebral ischemia-reperfusion injury: pathological cascade from ischemia to reperfusion and promising therapeutic strategies.Frontiers in neuroscience · 2025Review
- Polyphenolic metabolites inFrontiers in pharmacology · 2025Review
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Neuronal loss is a primary factor in determining the outcome of ischemic stroke. Oridonin (Ori), a natural diterpenoid compound extracted from the Chinese herb Rabdosia rubescens, has been shown to exert anti-inflammatory and neuroregulatory effects in various models of neurological diseases. In this study we investigated whether Ori exerted a protective effect against reperfusion injury-induced neuronal loss and the underlying mechanisms. Mice were subjected to transient middle cerebral artery occlusion (tMCAO), and were injected with Ori (5, 10, 20 mg/kg, i.p.) at the beginning of reperfusion. We showed that Ori treatment rescued neuronal loss in a dose-dependent manner by specifically inhibiting caspase-9-mediated neuronal apoptosis and exerted neuroprotective effects against reperfusion injury. Furthermore, we found that Ori treatment reversed neuronal mitochondrial damage and loss after reperfusion injury. In N2a cells and primary neurons, Ori (1, 3, 6 μM) exerted similar protective effects against oxygen-glucose deprivation and reoxygenation (OGD/R)-induced injury. We then conducted an RNA-sequencing assay of the ipsilateral brain tissue of tMCAO mice, and identified receptor-interacting protein kinase-3 (RIPK3) as the most significantly changed apoptosis-associated gene. In N2a cells after OGD/R and in the ipsilateral brain region, we found that RIPK3 mediated excessive neuronal mitophagy by activating AMPK mitophagy signaling, which was inhibited by Ori or 3-MA. Using in vitro and in vivo RIPK3 knockdown models, we demonstrated that the anti-apoptotic and neuroprotective effects of Ori were RIPK3-dependent. Collectively, our results show that Ori effectively inhibits RIPK3-induced excessive mitophagy and thereby rescues the neuronal loss in the early stage of ischemic stroke.
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