Table 1.
Sorted Cell Population | No. Cells per injection | No. of tumors/No. of injections | TIC Frequency | P-value (vs. bulk) |
---|---|---|---|---|
Bulk | 100 | 0/4 | ND | ND |
500 | 0/4 | |||
1000 | 0/4 | |||
5000 | 0/4 | |||
AcTubHI | 100 | 0/4 | 1/1454 (1/3523-1/600) | 0.0000539 |
500 | 1/4 | |||
1000 | 2/4 | |||
5000 | 4/4 | |||
ALDHHI | 100 | 0/4 | 1/540 (1/1248-1/234) | 0.00000045 |
500 | 2/4 | |||
1000 | 4/4 | |||
5000 | 4/4 |
Both AcTubHI and ALDHHI isolated cells had significantly increased xenograft initiating frequency compared to control cells (**p<0.001). TIC frequency was calculated using the Extreme Limiting Dilution Analysis software (Hu and Smyth, 2009).