Fig. 2

Treatment with sf-GFP-S. maltophilia destroys the integrity of the blood-milk barrier. After the mice were treated with 10¹⁰ CFU S. maltophilia for a week, mammary gland tissues were collected and the integrity of blood-milk barrier was detected. A Expression of tight junction proteins ZO-1, Occludin, Claudin-3 in mouse mammary gland. B FITC-albumin fluorescence staining of mammary gland tissue to determine the degree of albumin infiltration. The data are presented as mean ± SD. One-way analysis of variance was performed for statistical analysis. ^*P < 0.05, ^**P < 0.01 and ^***P < 0.001 indicate significance from each group. ns, no significance