ArticleJournal of neuroinflammation2018
Peroxiredoxin 2 activates microglia by interacting with Toll-like receptor 4 after subarachnoid hemorrhage.
Article in Journal of neuroinflammation, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
77 citing papers in PubMed, 2 syntheses or guidelines pooled it, 151 citations in OpenAlex.
- A Systematic Review of Inflammatory Cytokine Changes Following Aneurysmal Subarachnoid Hemorrhage in Animal Models and Humans.Translational stroke research · 2022Pooled it
- Role of Adaptor Protein Myeloid Differentiation 88 (MyD88) in Post-Subarachnoid Hemorrhage Inflammation: A Systematic Review.International journal of molecular sciences · 2021Pooled it
- Plasma Biomarkers of the Glycocalyx in Delayed Cerebral Ischemia After Aneurysmal Subarachnoid Hemorrhage.Brain sciences · 2026Article
- Evaluating Protein Enrichment Methods to Improve Biomarker Discovery in Equine Cerebrospinal Fluid.Veterinary medicine and science · 2026Article
- Peroxiredoxins in Stroke: Friends and Foes.Cells · 2026Review
- Gut microbiota and metabolites as potential modulators of cognitive impairment after aneurysmal subarachnoid hemorrhage: a hypothesis-driven review.Frontiers in microbiology · 2026Review
- Peroxiredoxins in central nervous system: implications for chronic pain and anaesthetic-induced neurotoxicity management.Redox biology · 2025Review
- WNK1 Alleviates Chloride Efflux-Induced NLRP3 Inflammasome Activation and Subsequent Neuroinflammation in Early Brain Injury Following Subarachnoid Hemorrhage.Neuroscience bulletin · 2025Article
- Tremella fuciformis Polysaccharides Alleviate Early Brain Injury in Experimental Subarachnoid Hemorrhage by Inhibiting the KDR-Mediated P38 MAPK/NF-κB Pathway.Molecular neurobiology · 2025Article
- Serum peroxiredoxin 2 emerges as a predictive biomarker of poor neurological outcome and delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage: a prospective cohort study.Neurosurgical review · 2025Article
- Curcumin Alleviates Microglia-Mediated Neuroinflammation and Neuronal Ferroptosis Following Experimental Subarachnoid Hemorrhage by Modulating the Nrf2/HO-1 Signaling Pathway.Molecular neurobiology · 2025Article
- Microglial cell proliferation is regulated, in part, by reactive astrocyte ETBExperimental neurology · 2025Article
- Feasibility of Serum Peroxiredoxin 2 as a Biochemical Indicator for Reflecting Severity and Prognosticating Stroke-Associated Pneumonia, Early Neurological Deterioration and Poor Neurological Outcomes in Acute Supratentorial Intracerebral Hemorrhage: An Observational Analytical Clinical Study.Neuropsychiatric disease and treatment · 2025Article
- Astrocyte-microglia crosstalk in subarachnoid hemorrhage: mechanisms and treatments.Frontiers in immunology · 2025Review
- Identification of biomarkers related to propionate metabolism in schizophrenia.Frontiers in psychiatry · 2025Article
- Peroxiredoxin II exerts neuroprotective effects by inhibiting endoplasmic reticulum stress and oxidative stress-induced neuronal pyroptosis.Molecular biology reports · 2024Article
- S100A9 aggravates early brain injury after subarachnoid hemorrhage via inducing neuroinflammation and inflammasome activation.iScience · 2024Article
- Article
- Free heme induces neuroinflammation and cognitive impairment by microglial activation via the TLR4/MyD88/NF-κB signaling pathway.Cell communication and signaling : CCS · 2024Article
- NAD-Dependent Protein Deacetylase Sirtuin-1 Mediated Mitophagy Regulates Early Brain Injury After Subarachnoid Hemorrhage.Journal of inflammation research · 2024Article
17 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundPeroxiredoxin (Prx) protein family have been reported as important damage-associated molecular patterns (DAMPs) in ischemic stroke. Since peroxiredoxin 2 (Prx2) is the third most abundant protein in erythrocytes and the second most protein in the cerebrospinal fluid in traumatic brain injury and subarachnoid hemorrhage (SAH) patients, we assessed the role of extracellular Prx2 in the context of SAH.
methodsWe introduced a co-culture system of primary neurons and microglia. Prx2 was added to culture medium with oxyhemoglobin (OxyHb) to mimic SAH in vitro. Neuronal cell viability was assessed by lactate dehydrogenase (LDH) assay, and neuronal apoptosis was determined by TUNEL staining. Inflammatory factors in culture medium were measured by ELISA, and their mRNA levels in microglia were determined by qPCR. Toll-like receptor 4 knockout (TLR4-KO) mice were used to provide TLR4-KO microglia; ST-2825 was used to inhibit MyD88, and pyrrolidine dithiocarbamate (PDTC) was used to inhibit NF-κB. Related cellular signals were analyzed by Western blot. Furthermore, we detected the level of Prx2 in aneurysmal SAH patients' cerebrospinal fluids (CSF) and compared its relationship with Hunt-Hess grades.
resultsPrx2 interacted with TLR4 on microglia after SAH and then activated microglia through TLR4/MyD88/NF-κB signaling pathway. Pro-inflammatory factors were expressed and released, eventually caused neuronal apoptosis. The levels of Prx2 in SAH patients positively correlated with Hunt-Hess grades.
conclusionsExtracellular Prx2 in CSF after SAH is a DAMP which resulted in microglial activation via TLR4/MyD88/NF-κB pathway and then neuronal apoptosis. Prx2 in patients' CSF may be a potential indicator of brain injury and prognosis.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.