IL1B and ovarian carcinoma: Three ovarian cancer cell lines SKOV3, OVCAR8, and A2780 were administrated with or without IL‐1β, and we found that IL‐1β increased the phosphorylation of P65 (NF‐κB activation) and ERK, beginning at 30 min after treatment, compared to non‐treatment groups (Figure 3A–C).