ArticleFluids and barriers of the CNS2020
Autophagy-mediated occludin degradation contributes to blood-brain barrier disruption during ischemia in bEnd.3 brain endothelial cells and rat ischemic stroke models.
Article in Fluids and barriers of the CNS, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 107 papers.
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Who cites it
107 citing papers in PubMed, 139 citations in OpenAlex.
- Pathophysiological Role of Perivascular Macrophages in Blood-Brain Barrier Dysfunction Induced by Cerebral Hypoperfusion in Mice.Neurochemical research · 2026Article
- No evidence of major integrative brain clearance impairment in an Alzheimer´s disease model of transgenic APPswe/PS1dE9 mice.Fluids and barriers of the CNS · 2026Article
- Des-O-Methyllasiodiplodin Isolated fromACS omega · 2026Article
- Soluble TREM2 Mediates Blood Brain Barrier Permeability through Astrocyte Reactivity.Research square · 2026Article
- Fluorogenic Autophagic Vesicle-Engaging Probe Enables High-Contrast and Homogeneous Imaging of Autophagic Flux in Live Cells.Chemical & biomedical imaging · 2026Article
- CKLF1 Serves as a Pivotal Mediator of Blood-Brain Barrier Disruption and Neuroinflammation via PI3K/AKT/mTOR Signaling in Ischemic Stroke.Molecular neurobiology · 2026Article
- Regulatory mechanisms of post-translational modifications on autophagic flux in neurons following ischemic stroke.Molecular biology reports · 2026Review
- Article
- Autophagy in ischemic stroke: from cellular survival mechanism to pathological damage.Metabolic brain disease · 2026Review
- A20 enhances the migration and metastasis of gastric cancer cells by promoting occludin degradation.Cell death discovery · 2026Article
- Occludin modulates HIV and ischaemic stroke response via the mitochondrial antiviral signalling pathway.Brain : a journal of neurology · 2026Article
- Neurovascular Impairment in Type 2 Diabetes Mellitus: The Role of Adipocyte-Derived Exosomes.Biomolecules · 2026Review
- Betanin, a Natural Product from Red Beets, Improves Endothelial Dysfunction through Activation of Autophagy.Current medicinal chemistry · 2026Article
- Targeting angiogenesis and white matter repair for enhanced functional recovery after acute ischemic stroke: A focus on the roles of glial cells.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026Review
- Occludin deficiency is associated with developmental impairment, locomotor dysfunction, and social deficiencies.Tissue barriers · 2026Article
- Deciphering the Neuroautophagic Interactome: Molecular Circuits Linking Selective Autophagy to Neuropathological Cascades in Neurological Disorders.International journal of biological sciences · 2026Review
- USP33 Promotes Lung Adenocarcinoma Brain Metastasis by Inhibiting the K48-Linked Ubiquitination and Degradation of S100A9 and Facilitating Vimentin Secretion.International journal of biological sciences · 2026Article
- Occludin-mediated barrier dysfunction and its role in cardiovascular and cerebrovascular pathogenesis.Frontiers in cardiovascular medicine · 2026Review
- A machine learning model integrating gut microbiota biomarkers for predicting neurological recovery after cerebral hypoxia-ischemia: a single-center study augmented with public data.Frontiers in pharmacology · 2026Article
- Mitochondrial control of blood-brain barrier homeostasis in neuroinflammatory psychiatric disorders.Frontiers in molecular neuroscience · 2026Review
47 more citing papers are in PubMed but not listed here.
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Authors and funding
10 authors at 4 institutions in 3 countries.
Funding
Abstract
backgroundThe blood-brain barrier (BBB) maintains homeostasis of the brain environment by tightly regulating the entry of substances from systemic circulation. A breach in the BBB results in increased permeability to potentially toxic substances and is an important contributor to amplification of ischemic brain damage. The precise molecular pathways that result in impairment of BBB integrity remain to be elucidated. Autophagy is a degradation pathway that clears damaged or unnecessary proteins from cells. However, excessive autophagy can lead to cellular dysfunction and death under pathological conditions.
methodsIn this study, we investigated whether autophagy is involved in BBB disruption in ischemia, using in vitro cells and in vivo rat models. We used brain endothelial bEnd.3 cells and oxygen glucose deprivation (OGD) to simulate ischemia in culture, along with a rat ischemic stroke model to evaluate the role of autophagy in BBB disruption during cerebral ischemia.
resultsOGD 18 h induced cellular dysfunction, and increased permeability with degradation of occludin and activation of autophagy pathways in brain endothelial cells. Immunostaining revealed that occludin degradation is co-localized with ischemic autophagosomes. OGD-induced occludin degradation and permeability changes were significantly decreased by inhibition of autophagy using 3-methyladenine (3-MA). Enhanced autophagic activity and loss of occludin were also observed in brain capillaries isolated from rats with middle cerebral artery occlusion (MCAO). Intravenous administration of 3-MA inhibited these molecular changes in brain capillaries, and recovered the increased permeability as determined using Evans blue.
conclusionsOur findings provide evidence that autophagy plays an important role in ischemia-induced occludin degradation and loss of BBB integrity.
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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.