Pro-inflammatory cytokines (IL-6, TNF-α, IL-8, IP-10, MCP-1, ICAM-1, VCAM-1) increased in preeclampsia; IL-1ra, TNF-α, and MCP-1 decreased in healthy pregnancy vs. non-pregnant; IL-10 decreased, and IP-10 increased in healthy pregnancy. Here, CCL2 is linked to preeclampsia.