Human peritoneal mesothelial cells produce many cytokines (granulocyte colony-stimulating factor CSF, granulocyte-monocyte-CSF, macrophage-CSF, interleukin-1 [IL-1], and IL-6) and are activated and stimulated to growth by IL-1 - Lanfrancone, L; Boraschi, D; Ghiara, P; Falini, B; Grignani, F; Peri, G; Mantovani, A; Pelicci, PG (Blood, 1992)