Table 1.

Treatment with pSIN-β plasmid caused TC-1 tumor regression.

	Untreated	pCMV-β	pSIN-β
No. of mice alive a	1/5	2/5	5/5
Tumor size (mm)	9.1	8.9, 6.1	0, 0, 0, 0, 3.1b

Data shown are 25 days after tumor cell seeding into mice.

a. Shown are number of live mice/total number of mice.

b. On day 37, all mice that were treated with the pSIN-β became tumor-free.