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Fig. 8. NF
B activation is pro-apoptotic following UV and TNF-
treatments, while anti-apoptotic following pervanadate and H/R treatments.
HeLa cells were infected with either Ad.BglII or Ad.I
B
AS at an
MOI of 1000 particles/cell for 24 hours. Cells were treated with (A) UV (50
J/m2), (B) TNF-
(10 ng/ml), (C) pervanadate (50 µM) and
(D) H/R (5 hours hypoxia, 18 hours reoxygenation) then harvested 18 hours
after treatment. Cells are then trypsinized and stained with annexin-V-FITC
and propidium iodine. Results depict the mean (±s.e.m., n=3)
percent of apoptotic cells as shown by FACS analysis. Following UV and
TNF-
treatment, I
B
AS expression significantly
(P<0.01) increased apoptosis compared with the Ad.BglII-infected
control group. By contrast, following pervanadate and H/R treatments,
I
B
AS expression significantly decreased (P<0.01) the
percentage of apoptotic cells as compared to the Ad.BglII-infected control
group.