Table 2. (A,B) Tumor initiation capability of control versus (A) siCD271 #1 and (B) siCD271 #2 in HPCM2 cells.

Population	Number of cells injected	Weeks
(A)
		1	2	3	4	5	6
Control	1,000	0/4	0/4	2/4	4/4	4/4
siCD271 #1	1,000	0/4	0/4	0/4	1/4	3/4
Control	100	0/4	0/4	0/4	0/4	3/4	3/4
siCD271 #1	100	0/4	0/4	0/4	0/4	0/4	0/4
(B)
		1	2	3	4	5	6	7
Control	1,000	0/4	0/4	0/4	3/4	4/4	4/4
siCD271 #2	1,000	0/4	0/4	0/4	0/4	0/4	0/4
Control	100	0/4	0/4	0/4	0/4	1/4	4/4	4/4
siCD271 #2	100	0/4	0/4	0/4	0/4	0/4	0/4	0/4