Table 2. Specificity of aptamers towards different cell lines tested at 37 °C.
| PL1 | PL2 | PL3 | PL4 | PL5 | PL6 | PL7 | PL8 | |
|---|---|---|---|---|---|---|---|---|
| PL45 | +++ | ++ | ++ | ++ | ++ | − | +++ | +++ |
| TOV-21G | − | − | + | − | − | + | − | + |
| hTert HPNE | − | − | + | + | − | − | ++ | − |
| Hep G2 | +++ | +++ | +++ | + | − | + | ++ | +++ |
| HeLa | + | ++ | +++ | − | − | − | − | − |
| A549 | − | − | − | − | − | − | − | − |
| H226 | − | − | − | − | − | − | − | − |
| DU 145 | − | − | − | − | − | − | − | − |
| CCRF-CEM | − | − | − | − | − | − | − | − |
| Ramos | − | − | − | − | − | − | − | − |
A minus (−) sign means affinities of 0–10% for the cells, a plus (+) means affinities of 10–40%, (++) means affinity of 41–70% and (+++) means affinity of 71–100%.