Cell Uptake by LL/2, L-M, and L-M (TK−) Cell Lines
| Nucleoside | Tracer uptake* (relative uptake ratio) | ||||
|---|---|---|---|---|---|
| LL/2 | L-M | L-M (TK−) | |||
| IUdR | 539.7 ± 81.7 | 77.8 ± 7.4† | 27.9 ± 2.9 | ||
| (6.9) | (2.8) | ||||
| ITdU | 226.7 ± 13.1 | 10.9 ± 1.5† | 3.9 ± 0.6 | ||
| (20.8) | (2.8) | ||||
| ITAU | 1.1 ± 0.0 | 1.7 ± 0.3‡ | 1.2 ± 0.2 | ||
| (0.6) | (1.4) | ||||
↵* Tracer uptake = pmol/mg protein/h.
↵† P < 0.0005 compared with L-M (TK−).
↵‡ P < 0.05 compared with L-M (TK−) (Student t test).
Data in parentheses in LL/2 row and L-M row indicate relative uptake ratios of LL/2 compared with those of L-M cells and relative uptake ratios of L-M compared with those of L-M (TK−), respectively.