Anti-oxidative effects of superoxide dismutase 3 on inflammatory diseases

AbstractFree radicals and other oxidants are critical determinants of the cellular signaling pathways involved in the pathogenesis of several human diseases including inflammatory diseases. Numerous studies have demonstrated the protective effects of antioxidant enzymes during inflammation by elimination of free radicals. The superoxide dismutase (SOD), an antioxidant enzyme, plays an essential pathogenic role in the inflammatory diseases by not only catalyzing the conversion of the superoxide to hydrogen peroxide and oxygen but also affecting immune responses. There are three distinct isoforms of SOD, which distribute in different cellular compartments such as cytosolic SOD1, mitochondrial SOD2, and extracellular SOD3. Many studies have investigated the anti-oxidative effects of SOD3 in the inflammatory diseases. Herein, in this review, we focus on the current understanding of SOD3 as a therapeutic protein in inflammatory diseases such as skin, autoimmune, lung, and cardiovascular inflammatory diseases. Moreover, the mechanism(s) by which SOD3 modulates immune responses and signal initiation in the pathogenesis of the diseases will be further discussed.
Source: Journal of Molecular Medicine - Category: Molecular Biology Source Type: research

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CONCLUSIONOur findings suggest that CSF levels of the NLRP3 inflammasome may serve as a diagnostic biomarker for distinguishing NMOSD and MS. Pyroptosis mediated by the NLRP3 inflammasome following mitochondrial damage may play an important role in the pathogenesis of these neuroinflammatory disorders, especially NMOSD.Graphical abstract
Source: Multiple Sclerosis and Related Disorders - Category: Neurology Source Type: research
Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter, please visit: https://www.fightaging.org/newsletter/ Longevity Industry Consulting Services Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Publication date: Available online 5 December 2019Source: CellAuthor(s): Chun-Cheih Chao, Cristina Gutiérrez-Vázquez, Veit Rothhammer, Lior Mayo, Michael A. Wheeler, Emily C. Tjon, Stephanie E.J. Zandee, Manon Blain, Kalil Alves de Lima, Maisa C. Takenaka, Julian Avila-Pacheco, Patrick Hewson, Lei Liu, Liliana M. Sanmarco, Davis M. Borucki, Gabriel Z. Lipof, Sunia A. Trauger, Clary B. Clish, Jack P. Antel, Alexandre PratSummaryMetabolism has been shown to control peripheral immunity, but little is known about its role in central nervous system (CNS) inflammation. Through a combination of proteomic, metabolomi...
Source: Cell - Category: Cytology Source Type: research
In conclusion, T2D impairs vascular function by dysregulated autophagy. Therefore, autophagy could be a potential target for overcoming diabetic microvascular complications. To What Degree Does Loss of Skeletal Muscle with Age Contribute to Immunosenescence? https://www.fightaging.org/archives/2019/11/to-what-degree-does-loss-of-skeletal-muscle-with-age-contribute-to-immunosenescence/ Sarcopenia, the progressive loss of muscle mass and strength, is characteristic of aging. A perhaps surprisingly large fraction of the losses can be averted by strength training, but there are nonetheless inexorable process...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Women have increased prevalence of Th17-mediated autoimmune diseases, including lupus and multiple sclerosis, and severe asthma. While estradiol and progesterone increased IL-17A production in Th17 cells by inhibiting Let7f miRNA expression and increasing IL-23 receptor (IL-23R) expression, it remained unclear how estrogen signaling through the canonical nuclear receptors, estrogen receptor α (ERα) and/or ERβ, regulated this pathway. We hypothesized that estrogen signaling through ERα increased IL-23R expression and IL-17A production from Th17 cells. To test this hypothesis, naïve T cells from W...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
This study demonstrates for the first time that senescent cells secrete functional LTs, significantly contributing to the LTs pool known to cause or exacerbate idiopathic pulmonary fibrosis. Against Senolytics https://www.fightaging.org/archives/2019/11/against-senolytics/ There is no consensus in science that is so strong as to have no heretics. So here we have an interview with a naysayer on the matter of senolytic treatments, who argues that the loss of senescent cells in aged tissues will cause more harm to long-term health than the damage they will do by remaining. To be clear, I think this to be a ...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Bullous pemphigoid (BP) is the most prevalent autoimmune skin blistering disease and is characterized by the generation of autoantibodies against the hemidesmosomal proteins BP180 (type XVII collagen) and BP230. Most intriguingly, BP is distinct from other autoimmune diseases because it predominantly affects elderly individuals above the age of 75 years, raising the question why autoantibodies and the clinical lesions of BP emerges mostly in this later stage of life, even in individuals harboring known putative BP-associated germline gene variants. The mitochondrial genome (mtDNA) is a potential candidate to provide additi...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
In recognition of his groundbreaking work on the mechanisms underlying the cellular response to infection, Dr. Zhijian “James” Chen of the University of Texas Southwestern Medical Center in Dallas has received the 2019 Switzer Prize awarded by the David Geffen School of Medicine at UCLA.At the prize ceremony on the UCLA campus, during which Chen delivered a lecture about his research focused on the role of DNA in triggering immune defense and autoimmune diseases, the scientist said he was honored to receive the award and then joked that “to this day, I still don’t know who nominated me.”C...
Source: UCLA Newsroom: Health Sciences - Category: Universities & Medical Training Source Type: news
This study aimed to examine whether the mechanisms of NET formation and the composition of NETs are distinct between AAV and SLE.MethodsTo investigate this hypothesis, healthy neutrophils were stimulated with serum from patients with AAV (n = 80) and patients with SLE (n = 59), and the mechanisms of NET formation and NET composition were compared.ResultsBoth patients with AAV and patients with SLE had excessive NET formation, which correlated with the extent of disease activity (in AAV r = 0.5,P
Source: Arthritis and Rheumatology - Category: Rheumatology Authors: Tags: Original Article Source Type: research
In conclusion, early events in thymic T cell development and repertoire generation are not abnormality in PBC patients. The breakdown of self-tolerance to autoantigen may be derived from other immunological dysregulation or environmental agents.
Source: Molecular Immunology - Category: Allergy & Immunology Source Type: research
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