Experimental autoimmune neuritis (EAN) is a T cell-mediated autoimmune inflammatory demyelinating disease of the peripheral nervous system and widely-used animal model of human inflammatory demyelinating polyradiculoneuropathies. Doxycycline is a well-known antibiotic and has been reported to have neuroprotective and anti-inflammatory effects. Here we investigated the effects of doxycycline on rat EAN. Therapeutic treatment with doxycycline (40 mg/kg body weight daily from the Day 9 to Day 14 post immunization) significantly attenuated the severity of EAN, decreased inflammatory infiltration of macrophages, B- and T-cells and demyelination in sciatic nerves of EAN rats. Pro-inflammatory molecules including matrixmetalloproteinase-9, inducible nitric oxide synthase and interleukin-17 were greatly decreased in sciatic nerves by administration of doxycycline as well. Taken together, our data showed that doxycycline could effectively suppress the peripheral inflammation to improve outcome of EAN, which suggests that doxycycline may be considered as a potential candidate of pharmacological treatment for neuropathies.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1007/s11064-011-0522-2 | DOI Listing |
J Neuroinflammation
January 2025
Department of Neurology, Division of Neuroimmunology, School of Medicine, Johns Hopkins University, Baltimore, MD, 21287, USA.
Chronic innate immune activation in the central nervous system (CNS) significantly contributes to neurodegeneration in progressive multiple sclerosis (MS). Using multiple experimental autoimmune encephalomyelitis (EAE) models, we discovered that NLRX1 protects neurons in the anterior visual pathway from inflammatory neurodegeneration. We quantified retinal ganglion cell (RGC) density and optic nerve axonal degeneration, gliosis, and T-cell infiltration in Nlrx1 and wild-type (WT) EAE mice and found increased RGC loss and axonal injury in Nlrx1 mice compared to WT mice in both active immunization EAE and spontaneous opticospinal encephalomyelitis (OSE) models.
View Article and Find Full Text PDFDiabetologia
January 2025
Department of Ophthalmology and Visual Sciences, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
Aims/hypothesis: Within the small intestine, neutrophils play an integral role in preventing bacterial infection. Upon interaction with bacteria or bacteria-derived antigens, neutrophils initiate a multi-staged response of which the terminal stage is NETosis, formation of protease-decorated nuclear DNA into extracellular traps. NETosis has a great propensity to elicit ocular damage and has been associated with diabetic retinopathy and diabetic macular oedema (DME) progression.
View Article and Find Full Text PDFNat Immunol
January 2025
State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Mucosal antigen-specific T cells are pivotal for pathogen clearance and immune modulation in respiratory infections. Dysregulated T cell responses exacerbate coronavirus disease 2019 severity, marked by cytokine storms and respiratory failure. Despite extensive description in peripheral blood, the characteristics of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-specific T cells in the lungs remain elusive.
View Article and Find Full Text PDFSci Rep
January 2025
School of Pharmacy, Division of Pharmaceutical Sciences, University of Wisconsin-Madison, Madison, WI, USA.
The central nervous system (CNS) requires specialized blood vessels to support neural function within specific microenvironments. During neurovascular development, endothelial Wnt/β-catenin signaling is required for BBB development within the brain parenchyma, whereas fenestrated blood vessels that lack BBB properties do not require Wnt/β-catenin signaling. Here, we used zebrafish to further characterize this phenotypic heterogeneity of the CNS vasculature.
View Article and Find Full Text PDFProg Neuropsychopharmacol Biol Psychiatry
January 2025
Department of Child and Adolescent Psychiatry, Selcuk University Faculty of Medicine Hospital, 42130 Konya, Turkey.
Autism spectrum disorder (ASD) is characterized by deficits in social interaction, restricted interests, and repetitive behaviors. Several genes, including synaptic proteins and environmental risk factors, play a role in the etiology of autism. We aimed to evaluate the relationship between neuroligin-1 (NLGN-1) and neuroligin-3 (NLGN-3) levels, which are neuronal cell adhesion molecules (CAMs), and inflammatory cytokine (IL-6, IL-8) levels with disease severity and symptom clusters and with each other in children with ASD.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!