1400W partially reverses the inhibition of amiloride-sensitive
Na+ currents by rRA2 infection in GFP(+) cells.
A, nitrite concentration of rRA2 infected (m.o.i. = 1) cells as
measured by chemiluminescence 48 h after rRA2 infection. Cells were treated
either by vehicle (0.1% DMSO; solid bars) or 1400W (1
μm; diagonal lines). Nitrite concentrations were
normalized to those of the DMSO-treated cells. Values are the means ± 1
S.E., n = 6 from 3 independent experiments (**, p
< 0.01, m.o.i. = 1). B, mean values ± 1 S.E. of
amiloride-sensitive currents of GFP(+) cells at -60 mV incubated with either
DMSO (solid bars, n = 4) or 1400W (diagonal lines,
n = 5) 3 days after rRA2 infection. C and D,
α and β ENaC mRNA levels in non-inoculated (solid bars),
GFP(-)(diagonal lines), and GFP(+)(cross-hatched lines)
cells (m.o.i. = 1) treated with DMSO or 1400W (1 μm). ENaC mRNA
levels were measured by real-time RT-PCR from cells sorted and collected by
flow cytometry 3-5 days after rRA2 infection and normalized by dividing them
by those of the non-inoculated cell groups. Values are the means ± 1
S.E.; data are from 4 independent experiments (**, p <
0.01 compared with non-inoculated cells).