Table 1.
DENV can replicate independently of a functional 5′ cap under conditions of reduced eIF4E
Cell treatment |
|||
---|---|---|---|
Untreated | 40 μM LY294002 | 1 μM Wortmannin | |
m7GpppA-capped DENV RNA (pfu/ml) | 822 ± 269 | 1022 ± 758 | 2455 ± 1296 |
ApppA-capped DENV RNA (pfu/ml) | 0 | 183 ± 42 | 378 ± 270 |
Equal amounts of functionally (m7GpppA) or nonfunctionally (ApppA) capped in vitro transcripts generated from the DENV-2 infectious clone were transfected into cells for 4 h. Cells were washed and incubated with LY294002 or wortmannin for 24 h. Supernatants were then collected and titered on BHK cells.