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Fig. 5 | Respiratory Research

Fig. 5

From: Urban particulate matter (PM) suppresses airway antibacterial defence

Fig. 5

The mRNA expressions of the antimicrobial peptides in airway epithelial cells. The mRNA expressions of the antimicrobial peptides in airway epithelial cells were detected by RT-PCR. a Lactoferrin; b SLPI; c CCL- 20; d LL-37; e hBD-1; f hBD-2; g hBD-3; h hBD-4. Control, untreated cells; PAO1, infected cells; PM, PM-exposed cells; PAO1 + PM, exposed to exposed to PM and subsequently infected with P. aeruginosa; SLPI, secretory leukocyte peptidase inhibitor; CCL-20, C-C motif chemokine ligand 20; hBD-1-4, human defensin-1-4. The data are expressed as the mean ± SD of three independent experiments. *P < 0.05, **P < 0.01, and ***P < 0.001 versus Control. #P < 0.05 and ##P < 0.01 versus PM

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