First Author | Mensah-Brown EP | Year | 2009 |
Journal | Clin Immunol | Volume | 130 |
Issue | 1 | Pages | 83-8 |
PubMed ID | 18845486 | Mgi Jnum | J:143408 |
Mgi Id | MGI:3826897 | Doi | 10.1016/j.clim.2008.08.024 |
Citation | Mensah-Brown EP, et al. (2009) Targeted disruption of the galectin-3 gene results in decreased susceptibility to multiple low dose streptozotocin-induced diabetes in mice. Clin Immunol 130(1):83-8 |
abstractText | Galectin 3 (Gal-3) is an antiapoptotic and a proinflammatory lectin. We hypothesized that the proinflammatory properties of Gal-3 may influence disease induction in the multiple low doses of streptozotocin model of diabetes. Diabetes was induced in C57BL/6 Gal-3(+/+) and Gal-3(-/-) mice and disease monitored by blood glucose level, immuno-histology, insulin content of islets and expression of the proinflammatory cytokines, TNF-alpha, IFN-gamma, IL-17, and iNOS in pancreatic lymph nodes. Gal-3(+/+) mice developed delayed and sustained hyperglycemia, mononuclear cellular infiltration and reduced insulin content of islets accompanied with expression of proinflammatory cytokines. Gal-3(-)/(-) mice were relatively resistant to diabetogenesis as evaluated by glycemia, quantitative histology and insulin content. Further, we observed the weaker expression of IFN-gamma and complete absence of TNF-alpha, and IL-17 in draining pancreatic lymph nodes. Macrophages, the first cells that infiltrate the islet in this model of diabetes, produce less TNF-alpha and NO in Gal-3(-/-) mice. Thus, Gal-3 is involved in immune mediated beta cell damage and is required for diabetogenesis in this model of disease. |