CCL22 and Pruritus: Among the studied chemokines (C-C Motif Chemokine Ligand (CCL) 2/MCP-1, CCL3/MIP-1α, CCL4/MIP-1β, CCL5/RANTES, CXCL8/IL-8, CCL17/TARC, CCL18/PARC, CCL22/MDC), only CCL17/TARC showed a positive correlation with pruritus intensity [66].