passages.id: split_5_test_3037_passage
passages.type: progene_text
passages.text: We found that human APC in supra - physiological concentrations of 2.5 - 10 microg / ml inhibited the LPS - induced release of the chemokines MIP-1 - alpha and MCP-1 , as measured by enzyme - linked immunosorbent assays ( ELISA ) at 6 up to 24 h .