FIGURE 7.

Adhesion and invasion of Proteus mirabilis C02011 strain and its mutant strain to Caco-2 cells. (A) Bacterial growth of P. mirabilis C02011 and its mutant strain detected by Densimat photometer. (B) Caco-2 cells were infected with P. mirabilis C02011 and its mutant strain for 2 h. The adhesion abilities of different strains were recorded. (C) Caco-2 cells were infected with P. mirabilis C02011 and its mutant strain for 2 h, followed by treatment with gentamicin (200 μg/ml) for 2 h. The invasion abilities of different strains were recorded. ^∗P < 0.05; NS, no significance.