DANA protects pulmonary fibroblasts from Mycoplasma alligatoris-induced increases in surface CD95 expression and apoptosis in a dose-dependent fashion. Subconfluent fibroblasts were infected 24 hr with 109 CFU M. alligatoris, then CD95 expression (open bars, n = 2 replicates) was measured with primary antibody ab13550, and 5-bromo-2′deoxyuridine (BrdU) DNA nick end-labeling (filled bars, n = 3 replicates) was measured with primary antibody PRB-1, by flow cytometry. Error bars = 1 standard error, † = P< 0.10, ** = P< 0.01 by Fisher’s Protected Least Significant Difference test.