Fig. 6
Representative images of immunofluorescent staining of NCI-H292 cells with an Alexa Fluor 488-conjugated mouse monoclonal antibody against human MUC5AC (green). Cells were incubated in the presence or absence of the dopamine D1 receptor agonist A68930 (1 μM), dopamine (1 μM), or CSE (10%: positive control) for 48 h before staining. Nuclei were stained with DAPI (blue). Images are representative of 3 independent immunofluorescence stainings