CCL15 and type 1 diabetes mellitus: Furthermore, despite having low absolute expression (EV < 120), genes encoding the chemokines CCL13, CCL15, CXCL16, and CCL3L3 and receptors CCR3, CXCR5, and Duffy antigen/chemokine receptor (DARC) were upregulated in T1D-MSCs compared with their healthy counterparts.