AI Article Synopsis
- Pathologic opening of the blood-brain barrier can speed up the progression of neural diseases, and basigin plays a crucial role in this process as a glycosylated molecule found in endothelial cells that form the barrier.
- The study demonstrated that different glycosylation forms of basigin (complex-type and high-mannose-type) exist in these cells, and that manipulating these forms can impact the barrier's integrity in response to harmful stimuli.
- In experiments, blocking the expression of high-mannose-type glycan kept endothelial cell monolayers intact under stress, and in vivo tests showed that treating mice with endoglycosidase H could protect and even repair the blood-brain barrier from harmful openings.
Article Abstract
Pathologic opening of the blood-brain barrier accelerates the progression of various neural diseases. Basigin, as an essential molecule for the opening of the blood-brain barrier, is a highly glycosylated transmembrane molecule specified in barrier-forming endothelial cells. This study analyzed the involvement of basigin in the regulation of the blood-brain barrier focusing on its glycosylation forms. First, basigin was found to be expressed as cell surface molecules with complex-type glycan as well as those with high-mannose-type glycan in barrier-forming endothelial cells. Monolayers of endothelial cells with suppressed expression of basigin with high-mannose-type glycan were then prepared and exposed to pathologic stimuli. These monolayers retained their barrier-forming properties even in the presence of pathologic stimuli, although their expression of basigin with complex-type glycan was maintained. In vivo, the blood-brain barrier in mice pretreated intravenously with endoglycosidase H was protected from opening under pathologic stimuli. Pathologically opened blood-brain barrier in streptozotocin-injected mice was successfully closed by intravenous injection of endoglycosidase H. These results show that high-mannose-type glycan of the basigin molecule is essential for the opening of the blood-brain barrier and therefore a specific target for protection as well as restoration of pathologic opening of the blood-brain barrier.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ajpath.2023.11.007 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
l-theanine: From tea leaf to trending supplement - does the science match the hype for brain health and relaxation?
Nutr Res
January 2025
Department of Molecular Medicine, University of Padova, Padova, Italy; IMDEA-Food, Madrid, Spain. Electronic address:
l-Theanine is a unique non-protein amino acid found abundantly in tea leaves. Interest in its potential use as a dietary supplement has surged recently, especially claims related to promoting relaxation and cognitive enhancement. This review surveys the chemistry, metabolism, and purported biological activities of l-theanine.
View Article and Find Full Text PDFFocused ultrasound therapy as a strategy for improving glioma treatment.
J Neurosurg
January 2025
Departments of1Neurological Surgery and.
The infiltrative and diffuse nature of gliomas makes complete resection unfeasible. Unfortunately, regions of brain parenchyma with residual, infiltrative tumor are protected by the blood-brain barrier (BBB), making systemic chemotherapies, small-molecule inhibitors, and immunotherapies of limited efficacy. Low-frequency focused ultrasound (FUS) in combination with intravascular microbubbles can be used to disrupt the BBB transiently and selectively within the tumor and peritumoral region.
View Article and Find Full Text PDFNotch dimerization provides robustness against environmental insults and is required for vascular integrity.
PLoS One
January 2025
Division of Developmental Biology, Department of Pediatrics, University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America.
The Notch intracellular domain (NICD) regulates gene expression during development and homeostasis in a transcription factor complex that binds DNA either as monomer, or cooperatively as dimers. Mice expressing Notch dimerization-deficient (NDD) alleles of Notch1 and Notch2 have defects in multiple tissues that are sensitized to environmental insults. Here, we report that cardiac phenotypes and DSS (Dextran Sodium Sulfate) sensitivity in NDD mice can be ameliorated by housing mice under hypo-allergenic conditions (food/bedding).
View Article and Find Full Text PDF3-HKA Promotes Vascular Remodeling After Stroke by Modulating the Activation of A1/A2 Reactive Astrocytes.
Adv Sci (Weinh)
January 2025
Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China.
Ischemic stroke is the most common cerebrovascular disease and the leading cause of permanent disability worldwide. Recent studies have shown that stroke development and prognosis are closely related to abnormal tryptophan metabolism. Here, significant downregulation of 3-hydroxy-kynurenamine (3-HKA) in stroke patients and animal models is identified.
View Article and Find Full Text PDFRecent Advances in Nanoenzymes Based Therapies for Glioblastoma: Overcoming Barriers and Enhancing Targeted Treatment.
Adv Sci (Weinh)
January 2025
The First Hospital of China Medical University, Liaoning, 110001, China.
Glioblastoma multiforme (GBM) is a highly aggressive and malignant brain tumor originating from glial cells, characterized by high recurrence rates and poor patient prognosis. The heterogeneity and complex biology of GBM, coupled with the protective nature of the blood-brain barrier (BBB), significantly limit the efficacy of traditional therapies. The rapid development of nanoenzyme technology presents a promising therapeutic paradigm for the rational and targeted treatment of GBM.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!