IB3-1 cells, an adeno-associated virus-transformed human bronchial epithelial cell line derived from a CF patient (ΔF508/W1282X) and obtained from LGC Promochem, were grown as described previously [39 (link)]. Cells were infected with P. aeruginosa strains at a multiplicity of infection (MOI) of 100. Cell viability was evaluated using the CellTiter 96® Non-Radioactive Cell Proliferation Assay (MTT) kit (Promega, G4000), according to manufacturer’s instructions.
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