IL1RL1 and neoplasm: To assess whether the anti-tumor immune response was affected by the absence of ST2, we performed flow cytometry analysis of CD45+ cells isolated from CT-2A tumors implanted in wt or ST2-deficient mice, with a special focus on macrophages (MΦ), and conventional DCs (Figure 5A, Supplementary Figure S9), or CD4 and CD8 positive lymphocytes (Figure 5P, Supplementary Fig S10).