Cytotoxic effects of bexarotene and denileukin diftitox (Ontak) alone and in combination
Cell lines and cells . | Expression of IL-2 receptor subunits (baseline) . | Cytotoxicity (% survival) bexarotene . | Cytotoxicity (% survival) bexarotene + Ontak (10−12 M) . | |||||
---|---|---|---|---|---|---|---|---|
p55α . | p75β . | p64γ . | 10−10M bexarotene . | 10−8 M bexarotene . | 10−12 M Ontak . | 10−12 M Ontak + 10−10 M bexarotene . | 10−12 M Ontak + 10−8 M bexarotene . | |
NCI-HUT 102 | +++ | +++ | +++ | 116 | 112 | 56 | 36 | 29 |
CEM | ± | − | +++ | 106 | 109 | 85 | 53 | 44 |
Raji | + | − | +++ | 103 | 105 | 104 | 84 | 80 |
CTCL patient | ± | − | +++ | 102 | 106 | 83 | 68 | 61 |
CTCL patient | − | − | +++ | 119 | 106 | 80 | 64 | 58 |
B-CLL patient | ± | − | +++ | 103 | 110 | 86 | 71 | 64 |
Cell lines and cells . | Expression of IL-2 receptor subunits (baseline) . | Cytotoxicity (% survival) bexarotene . | Cytotoxicity (% survival) bexarotene + Ontak (10−12 M) . | |||||
---|---|---|---|---|---|---|---|---|
p55α . | p75β . | p64γ . | 10−10M bexarotene . | 10−8 M bexarotene . | 10−12 M Ontak . | 10−12 M Ontak + 10−10 M bexarotene . | 10−12 M Ontak + 10−8 M bexarotene . | |
NCI-HUT 102 | +++ | +++ | +++ | 116 | 112 | 56 | 36 | 29 |
CEM | ± | − | +++ | 106 | 109 | 85 | 53 | 44 |
Raji | + | − | +++ | 103 | 105 | 104 | 84 | 80 |
CTCL patient | ± | − | +++ | 102 | 106 | 83 | 68 | 61 |
CTCL patient | − | − | +++ | 119 | 106 | 80 | 64 | 58 |
B-CLL patient | ± | − | +++ | 103 | 110 | 86 | 71 | 64 |
All the data represent cell count ± SEM by MTT assay.