Figure 6.
Pulmonary inflammation related to 4T1 mammary carcinoma metastasis progression in mice. Inflammation was evaluated in BAL and differential leukocyte counts and ELISA assays in the lungs samples. Levels of CXCL1, CCL2, VEGF, and TGF-β1 were measured by ELISA assay on the 14th, 21st, and 28th days post tumor transplant (A). BAL counts shows a progressive leukocyte infiltration following metastatic development of the 4T1 tumor, with a predominance of macrophages in BAL in late time-points, when compared to Control group (B). One-way ANOVA test followed by Student-Newman-Keuls test was used to evaluate differences among groups. Results are representative of two experiments and are shown as the mean ± SEM of seven to eight animals in each group. *P < 0.05, **P < 0.01, and ***P < 0.001, respectively.