Table 3.
In vitro antibacterial activity of peptides 1B and C against multidrug resistant clinical isolates.
| Antimicrobial activity (MIC, µM) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| Peptides | Pa1 | Pa2 | Pa3 | KpCR1 | KpCR2 | KpCR3 | Sa1 | Sa2 | Sa3 |
| 1B | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 6.25 |
| C | 25 | 25 | 25 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 |
| Gentamicin* | >4 | >4 | >4 | 1 | >8 | 1 | <1 | <1 | <1 |
| Imipenem* | >4 | >4 | >4 | >8 | >8 | >8 | 8 | >8 | >8 |
| Tobramycin* | 4 | 4 | 4 | 2 | 2 | >4 | 1 | <1 | 1 |
| Vancomycin* | NA | NA | NA | NA | NA | NA | 2 | 1 | 2 |
*For the antibiotic, MIC values are expressed as μg/ml; NA: not applicable.