ArticleMolecular neurobiology2024
Inhibiting Caveolin-1-Related Akt/mTOR Signaling Pathway Protects Against N-methyl-D-Aspartate Receptor Activation-Mediated Dysfunction of Blood-Brain Barrier in vitro.
Article in Molecular neurobiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- GPCR-Driven Muscarinic M1 and Histamine H1 Receptor Signaling Converging on the PI3K/Akt/mTOR Pathway: Functional Integration in Neuroinflammation and Myelin Repair in Multiple Sclerosis.Molecular neurobiology · 2026Review
- High-Dose MK-801 Attenuated Early TTC-Defined Cortical Injury Even under the Conditions of Suppressed Rapamycin-Sensitive pS6 Signaling during Early Cerebral Ischemia-Reperfusion.Naunyn-Schmiedeberg's archives of pharmacology · 2026Article
- Article
- Caveolae: Metabolic Platforms at the Crossroads of Health and Disease.International journal of molecular sciences · 2025Review
- Focal adhesion in the tumour metastasis: from molecular mechanisms to therapeutic targets.Biomarker research · 2025Review
- The Involvement of Glial Cells in Blood-Brain Barrier Damage in Neuroimmune Diseases.International journal of molecular sciences · 2024Review
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6 authors at 1 institution in 1 country.
Funding
Abstract
backgroundThe aim of this study was to further explore the role of caveolin-1 (Cav-1) related Akt/mTOR signaling pathway in blood brain barrier (BBB) dysfunction caused by NMDAR activation.
methodsThe cell localization of NMDAR GluN1 subunit and Cav-1 was observed on human brain microvascular HBEC-5i cells after immunofluorescence double staining. The transendothelial resistance (TEER) of BBB in vitro was measured by Millicell-ERS cell resistance meter. Sodium fluorescein (SF) was used to measure the permeability of BBB in vitro. A stable Cav-1-silenced HBEC-5i cell line was established by infecting the cells with a lentivirus encoding Cav-1 shRNA. The changes of the protein and mRNA of MMP9 and Occludin induced by NMDA were detected by Western blot (WB) and real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR), respectively. The phosphorylated proteins of Cav-1, Akt, and mTOR were detected by WB.
resultsNMDAR GluN1 was expressed in the cytoplasm and part of the cell membrane of the HBEC-5i cell line. NMDAR activation decreased TEER and increased the SF of BBB in vitro. HBEC-5i cells incubated with NMDA enhanced the phosphorylation of Cav-1, Akt, and mTOR, also promoting the expression of MMP9 along with the degradation of Occludin. These effects could be reversed by pretreatment with NMDAR antagonist (MK801) or Cav-1 antagonist (Daidzein), or Akt antagonist (LY294002), respectively. Further silencing Cav-1 with LV-Cav-1-RNAi also played a similar protective effect.
conclusionCaveolin-1 (Cav-1) related Akt/mTOR signaling probably contributes to BBB dysfunction by activating NMDAR on human brain microvascular cells.
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