International Immunology Advance Access originally published online on January 31, 2005
International Immunology 2005 17(3):307-314; doi:10.1093/intimm/dxh210
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Fms-like tyrosine kinase 3 ligand administration overcomes a genetically determined dendritic cell deficiency in NOD mice and protects against diabetes development
1 Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3050, Australia
2 Ludwig Institute for Cancer Research, Melbourne Tumour Biology Branch, Austin and Repatriation Medical Centre, Heidelberg, Victoria 3084, Australia
Correspondence to: K. Shortman; E-mail: shortman{at}wehi.edu.au
A dendritic cell (DC) imbalance with a marked deficiency in CD48+ DC occurs in non-obese diabetic (NOD) mice, a model of human autoimmune diabetes mellitus. Using a NOD congenic mouse strain, we find that this CD48+ DC deficiency is associated with a gene segment on chromosome 4, which also encompasses non-MHC diabetes susceptibility loci. Treatment of NOD mice with fms-like tyrosine kinase 3 ligand (FL) enhances the level of CD48+ DC, temporarily reversing the DC subtype imbalance. At the same time, fms-like tryosine kinase 3 ligand treatment blocks early stages of the diabetogenic process and with appropriately timed administration can completely prevent diabetes development. This points to a possible clinical use of FL to prevent autoimmune disease.
Keywords: autoimmune disease, dendritic cells, diabetes, Flt-3 ligand
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