Table 1.
Tumor cells | α2δ1 | Tumor formation | Frequency of tumorigenic cells (95% CI) | P value | |
---|---|---|---|---|---|
1000 | 100 | ||||
A549 | Negative | 2/5 | 0/5 | 1/2213 (1/8821–1/555) | 2.60E−05c |
Positive | 5/5 | 4/5 | 1/62 (1/185–1/21) | ||
ST | 5/5 | 4/5 | 1/62 (1/185–1/21) | ||
H292 | Negative | 1/5 | 0/5 | 1/4983 (1/35191–1/706) | 2.28E−06c |
Positive | 5/5 | 4/5 | 1/62.1 (1/185–1/21) | ||
ST | 5/5 | 4/5 | 1/62.1 (1/185–1/21) | ||
H520 | Negative | 1/5 | 0/5 | 1/4983 (1/35191–1/706) | 0.0383c |
Positive | 3/5 | 2/5 | 1/ 711 (1/1928–1/263) | ||
ST | 5/5 | 3/5 | 1/109 (1/348–1/34) | ||
7494a | Negative | 0/3 | 0/3 | N.A. | |
Positive | 3/3 | 3/3 | N.A. | ||
9157a | Negative | 0/3 | 0/3 | N.A. | |
Positive | 0/3 | 0/3 | N.A. | ||
0296a | Negative | 0/1 | 0/1 | N.A. | |
Positive | 1/1 | 0/1 | N.A. | ||
7470b | Negative | 1/5 | 0/5 | 1/4983 (1/35191–1/706) | 0.09c |
Positive | 3/5 | 1/5 | 1/921 (1/2617–1/324) | ||
9613b | Negative | 1/5 | 0/5 | 1/4983 (1/35191–1/706) | 0.038c |
Positive | 3/5 | 2/5 | 1/711 (1/1928–1/263) |
N.A. not applied, The calculation of TIC frequencies is not applicable because there are too few animals transplanted, ST serial transplantation.
aPrimary NSCLC tissue.
bNSCLC PDX tissues.
cCompared between the α2δ1+ and α2δ1−subpopulations.