Table 1.
Tumor-generation assay after using injection of 500, 1,000 or 5,000 DiI-positive cellsa, b.
| Tumor generation, n/total n | Mean time to tumor generation, days | |||||
|---|---|---|---|---|---|---|
| cell injection | 5,000c | 1,000d | 5,00d | 5000 | 1000 | 500 |
| DiIhigh cells | 5/5 | 3/5 | 1/5 | 28 | 29 | 37 |
| DiI- cells | 3/5 | 1/5 | 0/5 | 21 | 24 | -- |
aExperiments were repeated three times with similar results; this table presents the result of one experiment.
b DiIhigh cells were isolated using DiI-based fluorescence-activated cell sorting.
c, dThe t-test was carried out to determine the difference between the two groups in three experiments: cP < 0.01; dP < 0.05,).