Table 1. Increase in eicosanoid levels during lung tumor progression in orthotopic lung cancer model in mice.
analyte | Fold increase in 3 wk tumors over control | FDR (adj. p-value) |
LTB4 | ND | 0.218 |
PGE2 | 45.2 | 0.009* |
LTC4 | 13.5 | 0.212 |
LTE4 | 11.9 | 0.009* |
PGD2 | 10.9 | 0.010* |
TXB2 | 9.4 | 0.010* |
AA | 7.8 | 0.009* |
PGF2a | 4.0 | 0.065 |
12HETE | 3.8 | 0.010* |
15HETE | 3.6 | 0.009* |
5HETE | 3.0 | 0.263 |
DHA | 2.8 | 0.009* |
5-oxo-ete | 2.4 | 0.182 |
LTD4 | 1.8 | 0.263 |
6kPGF1a | 0.7 | 0.699 |
Wild-type C57B/L mice were injected in left lung lobe with LLC-Luc cells. Whole left lung lobes containing tumors were harvested at 2 and at 3 weeks after injection, along with left lobes from control mice injected with PBS/Matrigel. Eicosanoids extracted from the harvested lungs were analyzed by LC/MS/MS and normalized to the protein content of the sample. Numbers in the table indicate fold increase in 3-week tumor bearing lung vs. matrigel-injected lung. ND – fold increase was not determined for LTB4, since in control mice this analyte was not detectable. * FDR<0.05