Figure 1. LPS induced pulmonary inflammation and promoted metastasis. (A and B) PBS-treated mouse was disposed as a control. (C and D) Mouse was injected with LPS for 3 d to confirm an inflammation model. (E–H) Mouse received 4T1 cell inoculation and lung metastasis number was counted after 3 wk. (I and J) Wet/dry weight ratio of lungs and number of metastatic foci per mice. Bar is 200 μm.