d the protocol was approved by the Catholic University of Korea Human Research Ethics Committee.

Reagents
Recombinant IL-17, IL-18, IL-15, monocyte chemoattractant protein-1 (MCP-1), macrophage inflammatory protein (MIP)-1α, MIP-1β, IL-6 and IL-8 were purchased from R & D systems (Minneapolis, MN, USA). Recombinant transforming growth factor (TGF)-β was purchased from Peprotech (London,