Table 4 Selectivity in the antitumor action of five Helichrysum zivojinii extracts
From: In vitro antitumor actions of extracts from endemic plant Helichrysum zivojinii
Selectivity coefficient in the antitumor action | IC50PBMC/ IC50HeLa | IC50PBMC + PHA/ IC50HeLa | IC50PBMC/ IC50K562 | IC50PBMC + PHA/ IC50K562 |
|---|---|---|---|---|
Extract 1 | 5.34 | 4.02 | 11.17 | 8.41 |
Extract 2 | 4.06 | 3.36 | 3.43 | 2.84 |
Extract 3 | 1.97 | 1.63 | 2.78 | 2.25 |
Extract 4 | 3.27 | 1.63 | 3.68 | 1.83 |
Extract 5 | > 2.36 | 1.51 | 2.67 | 1.71 |