Interleukin 8 in the human colostrum.

We investigated the postpartum changes in colostral interleukin (IL) 8 concentrations during the first 3 postpartum days and examined the IL-8 production of colostral cells at the levels of both protein and mRNA. Colostrum samples were obtained from healthy mothers after full-term delivery. Colostrum, supernatants, and cell lysates of cultured colostral cells were assayed for IL-8 by enzyme-linked immunosorbent assay.