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Titolo: Serum transforming growth factor beta 1 during diabetes development in non-obese diabetic mice and humans
Autori: 
Data di pubblicazione: 2010
Rivista: 
CLINICAL AND EXPERIMENTAL IMMUNOLOGY  
Citazione: Serum transforming growth factor beta 1 during diabetes development in non-obese diabetic mice and humans / Olivieri A; De Angelis S; Dionisi S; D'Annunzio G; Locatelli M; Marinaro M; Bonato V; Amendola A; Songini M; Velluzzi F; Schirru C; Cotichini R; Stazi MA; Dotta F; Lorini R; Bottazzo GF; Boirivant M. - 162:3(2010), pp. 407-414.
Abstract: Recent data show that regulatory cells with transforming growth factor (TGF)-b1-dependent activity are able to restore self-tolerance in overtly diabetic non-obese diabetic (NOD) mice. Thus, TGF-b1 seems to have a relevant role in protection from autoimmune diabetes. Our aim was to investigate the possible significance of serum TGF-b1 measurement in the natural history of diabetes in NOD mice, as well as in children positive for at least one isletrelated antibody. Serum TGF-b1 (both total and active) was measured by enzyme-linked immunosorbent assay at monthly intervals in 26 NOD mice during the spontaneous development of diabetes and, on a yearly basis, in nine siblings of patients with type 1 diabetes (T1D) with a follow-up of 4 years. Diabetes appeared between the 12th week of age and the end of the study period (36 weeks) in 17 mice.TGF-b1 serum level variations occurred in the prediabetic period in both NOD mice and humans and diabetes diagnosis followed a continuing reduction of active TGF-b1 (aTGF-b1) serum levels. In mice, aTGF-b1 serum levels measured at 4 weeks of age correlated positively with severity of insulitis, and negatively with percentage of insulin-positive cells. Our findings suggest that in NOD mice serum TGF-b1 levels during the natural history of the diabetes reflect the course of islet inflammation. The measurement of aTGF-b1 in islet-related antibody-positive subjects may provide insights into the natural history of prediabetic phase of T1D.
Handle: http://hdl.handle.net/11584/32506
Tipologia:1.1 Articolo in rivista

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