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Administration of sulfatide to ameliorate type I diabetes in non-obese diabetic mice.

Artikel i vetenskaplig tidskrift
Författare Sara Rhost
Linda Löfbom
Jan-Eric Månsson
A Lehuen
Maria K. Blomqvist
Susanna Cardell
Publicerad i Scandinavian journal of immunology
Volym 79
Nummer/häfte 4
Sidor 260-6
ISSN 1365-3083
Publiceringsår 2014
Publicerad vid Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi
Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi
Sidor 260-6
Språk en
Länkar www.ncbi.nlm.nih.gov/entrez/query.f...
Ämnesord Animals, Antigens, CD1d, metabolism, Autoantibodies, blood, Cytotoxicity, Immunologic, Diabetes Mellitus, Type 1, drug therapy, immunology, Disease Models, Animal, Disease Progression, Female, Galactosylceramides, administration & dosage, Humans, Islets of Langerhans, metabolism, Mice, Mice, Inbred NOD, Natural Killer T-Cells, immunology, Sulfoglycosphingolipids, administration & dosage
Ämneskategorier Immunologi inom det medicinska området

Sammanfattning

The endogenous glycosphingolipid sulfatide is a ligand for CD1d-restricted type II natural killer T (NKT) lymphocytes. Through the action of these cells,sulfatide treatment has been shown to modulate the immune response in mouse models for autoimmune diseases, infections and tumour immunity. Sulfatide exists naturally in different organs including the pancreas, where sulfatide colocalizes with insulin within the Langerhans islet b-cells, targets for the immune destruction in type 1 diabetes (T1D). Human T1D patients, but not patients with type 2 diabetes nor healthy individuals, have autoantibodies against sulfatide in serum, suggesting that sulfatide induces an immune response in the natural course of T1D in humans. Here, we investigate sulfatide as an autoantigen and a modulator of autoimmune disease in the murine model forT1D, the non-obese diabetic (NOD) mice. We demonstrate that aged NOD mice displayed serum autoantibody reactivity to sulfatide; however, this reactivity did not correlate with onset of T1D. Repeated administration of sulfatide did not result in an increase in serum reactivity to sulfatide. Moreover, a multidose sulfatide treatment of female NOD mice initiated at an early (5 weeks of age),intermediate (8 weeks of age) or late (12 weeks of age) phase of T1D progression did not influence the incidence of disease. Thus, we demonstrate that a fraction of NOD mice develop autoantibody reactivity to sulfatide; however, we fail to demonstrate that sulfatide treatment reduces the incidence of T1D in this mouse strain.

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