TABLE 1.
Summary of results for PAO1 treated with the pel repressor small molecules
| Parameter | Result fora: |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Antibiofilmb/antivirulence |
Antibiofilmb |
Pel/Psl repressors |
||||||||||
| I7 | I9 | I10 | I11 | I2 | I12 | I13 | I1 | I4 | I5 | I6 | I8 | |
| pelB expression | +++ | ++ | +++ | ++ | ++ | +++ | ++ | +++ | +++ | +++ | ++ | +++ |
| pslA expression | +++ | − | − | ++ | ++ | − | +++ | +++ | ++ | +++ | +++ | +++ |
| CR assay (EPS) | ++ | + | +++ | + | +++ | ++ | ++ | − | − | − | + | − |
| CV assay (biofilm) | ++ | ++ | ++ | ++ | ++ | ++ | − | − | − | − | − | + |
| Flow biofilm assay (depth) | ++ | − | ++ | ++ | + | ++ | +++ | NDc | ND | − | ND | ND |
| Nematode antivirulence | + | + | + | + | − | − | − | − | − | − | − | − |
| Anaerobic biofilm | − | ++ | − | ND | − | ++ | − | ++ | − | + | ++ | − |
Statistically significant repression effects were scored as mild (+ [>15%]), moderate (++ [>30%]), strong (+++ [>50%]), or no effect (−).
Compounds were grouped as antibiofilm molecules if they reduced at least 2 out of 3 aerobic biofilm phenotypes (CR, CV, or flow biofilm assays).
ND, not determined.