A comprehensive investigation using FABP4−/− and FABP4+/+ NOD mice supplemented with CXCL10 neutralizing antibody or CXCL10 recombinant protein will allow a further understanding of the importance of FABP4‐CXCL10 axis in cytotoxic T cell recruitment in T1D progression. This evidence concerns the gene CXCL10 and type 1 diabetes mellitus.