Development of a novel, animal model for multiple sclerosis (MS) with reproducible and predictable lesion placement would enhance the discovery of effective treatments. Therefore, we would like to combine the advantages of the demyelination model with experimental autoimmune encephalomyelitis (EAE) to provide a local autoimmune encephalomyelitis (LAE) inside rat brain. We induced a demyelinating lesion by immunizing male Wistar rats, followed by blood-brain barrier opening protein (vascular endothelial growth factor) by stereotactic injection. We confirmed the immunization against myelin epitopes and minor neurological impairment. Histological assessment confirmed the lesion development after both 3- and 7 days post-injection. Our approach was sufficient to develop a demyelinating lesion with high reproducibility and low morbidity.
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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0262677 | PLOS |
Cell Rep
January 2025
Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan. Electronic address:
Proteasomes generate antigenic peptides presented on cell surfaces-a process that, in neuroglia, is highly responsive to external stimuli. However, the function of the self-antigens presented by CNS parenchymal cells remains unclear. Here, we report that the fidelity of neuroglial self-antigens is crucial to suppress encephalitogenic T cell responses by elevating regulatory T (Treg) cell populations.
View Article and Find Full Text PDFPharmaceuticals (Basel)
December 2024
Department of Neurology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA.
(L.) Urban (family Apiaceae) () is a traditional botanical medicine used in aging and dementia. Water extracts of (CAW) have been used to treat neuropsychiatric symptoms in related animal models and are associated with increases in antioxidant response element (ARE) genes and improvements in mitochondrial respiratory function and neuronal health.
View Article and Find Full Text PDFBiomedicines
December 2024
Department of Histology, Jagiellonian University Medical College, Kopernika 7, 31-034 Krakow, Poland.
Background: The levels of β-amyloid precursor protein (β-APP), tau protein, and phosphorylation of tau (p-tau) protein were examined by quantitative immunohistochemistry in the spinal cord sections of mice suffering from experimental autoimmune encephalomyelitis (EAE) in the successive phases of the disease: onset, peak, and chronic.
Methods: EAE was induced in C57BL/6 mice by immunization with MOG35-55 peptide. The degree of pathological changes was assessed in cross-sections of the entire spinal cord.
bioRxiv
December 2024
Department of Pathology, University of Iowa, Iowa City, IA 52242, USA.
Oligodendroglial lineage cells (OLCs) are critical for neuronal support functions, including myelination and remyelination. Emerging evidence reveals their active roles in neuroinflammation, particularly in conditions like Multiple Sclerosis (MS). This study explores the inflammatory translatome of OLCs during the early onset of experimental autoimmune encephalomyelitis (EAE), an established MS model.
View Article and Find Full Text PDFBMC Neurosci
January 2025
Laboratory of Veterinary Internal Medicine, Department of Clinical Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea.
Microglia/macrophages participate in the development of and recovery from experimental autoimmune encephalomyelitis (EAE), and the macrophage M1 (pro-inflammatory)/M2 (anti-inflammatory) phase transition is involved in EAE disease progression. We evaluated the efficacy of crisdesalazine (a novel microsomal prostaglandin E2 synthase-1 inhibitor) in an EAE model, including its immune-regulating potency in lipopolysaccharide-stimulated macrophages, and its neuroprotective effects in a macrophage-neuronal co-culture system. Crisdesalazine significantly alleviated clinical symptoms, inhibited inflammatory cell infiltration and demyelination in the spinal cord, and altered the phase of microglial/macrophage and regulatory T cells.
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