ArticleOxidative medicine and cellular longevity2015
LPS Induces Occludin Dysregulation in Cerebral Microvascular Endothelial Cells via MAPK Signaling and Augmenting MMP-2 Levels.
Article in Oxidative medicine and cellular longevity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.
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Who cites it
56 citing papers in PubMed, 1 synthesis or guideline pooled it, 93 citations in OpenAlex.
- Meta-analysis of the make-up and properties of in vitro models of the healthy and diseased blood-brain barrier.Nature biomedical engineering · 2025Pooled it
- Review
- Linking peripheral low-grade inflammation and blood-cerebrospinal fluid barrier leakage in schizophrenia spectrum disorders - A retrospective analysis.Brain, behavior, & immunity - health · 2026Article
- Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026Review
- Polyphenols Limit Cerebral Endothelial Cell Dysfunction Under Inflammatory Conditions Related to Oral and Gut Microbiota.Nutrients · 2026Article
- CRISPRi Screening Identifies EssentialInternational journal of molecular sciences · 2026Article
- Inhibition of junctional protein disruption by 2,4,6-trihydroxy-3-geranyl acetophenone in lipopolysaccharide-induced endothelial hyperpermeability via GEF-H1/RhoA/ROCK pathway.Naunyn-Schmiedeberg's archives of pharmacology · 2026Article
- Article
- Bladder p75Life (Basel, Switzerland) · 2025Article
- Peripheral Inflammation and Insulin Resistance: Their Impact on Blood-Brain Barrier Integrity and Glia Activation in Alzheimer's Disease.International journal of molecular sciences · 2025Review
- Study on cerebrospinal fluid meropenem, vancomycin and tigecycline monitoring in patients with central nervous system infection following neurosurgery under different drug regimens.Frontiers in pharmacology · 2025Article
- The P38MAPK Pathway Mediates the Destruction of the Blood-Brain Barrier in Anti-NMDAR Encephalitis Mice.Neurochemical research · 2024Article
- Cellular and molecular mechanisms of the blood-brain barrier dysfunction in neurodegenerative diseases.Fluids and barriers of the CNS · 2024Review
- Metabolic Endotoxemia: From the Gut to Neurodegeneration.International journal of molecular sciences · 2024Review
- Gut Microbiota in Ischemic Stroke: Role of Gut Bacteria-Derived Metabolites.Translational stroke research · 2023Review
- Cu(ATSM) Increases P-Glycoprotein Expression and Function at the Blood-Brain Barrier in C57BL6/J Mice.Pharmaceutics · 2023Article
- Dl-3-n-butylphthalide promotes synaptic plasticity by activating the Akt/ERK signaling pathway and reduces the blood-brain barrier leakage by inhibiting the HIF-1α/MMP signaling pathway in vascular dementia model mice.CNS neuroscience & therapeutics · 2023Article
- Regulation of Physiological Barrier Function by the Commensal Microbiota.Life (Basel, Switzerland) · 2023Review
- Article
- Blood brain barrier and inflammation in depression.Neurobiology of disease · 2022Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Disrupted blood-brain barrier (BBB) integrity contributes to cerebral edema during central nervous system infection. The current study explored the mechanism of lipopolysaccharide- (LPS-) induced dysregulation of tight junction (TJ) proteins. Human cerebral microvascular endothelial cells (hCMEC/D3) were exposed to LPS, SB203580 (p38MAPK inhibitor), or SP600125 (JNK inhibitor), and cell vitality was determined by MTT assay. The proteins expressions of p38MAPK, JNK, and TJs (occludin and zonula occludens- (ZO-) 1) were determined by western blot. The mRNA levels of TJ components and MMP-2 were measured with quantitative real-time polymerase chain reaction (qRT-PCR), and MMP-2 protein levels were determined by enzyme-linked immunosorbent assay (ELISA). LPS, SB203580, and SP600125 under respective concentrations of 10, 7.69, or 0.22 µg/mL had no effects on cell vitality. Treatment with LPS decreased mRNA and protein levels of occludin and ZO-1 and enhanced p38MAPK and JNK phosphorylation and MMP-2 expression. These effects were attenuated by pretreatment with SB203580 or SP600125, but not in ZO-1 expression. Both doxycycline hyclate (a total MMP inhibitor) and SB-3CT (a specific MMP-2 inhibitor) partially attenuated the LPS-induced downregulation of occludin. These data suggest that MMP-2 overexpression and p38MAPK/JNK pathways are involved in the LPS-mediated alterations of occludin in hCMEC/D3; however, ZO-1 levels are not influenced by p38MAPK/JNK.
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