Table 1.

The rate of cell death induced by IL-2 withdrawal is lower in 2780a cells infected with the SRα/Gfi-1 retrovirus

Retrovirus	% cell death
	At 24 hr	At 48 hr
SRα	12.7  ±  0.93	34.9  ±  1.34
SRα/Gfi-1	8.0  ±  0.08	25.6  ±  1.54

Live and dead cells were counted at 24 and 48 hr after IL-2 withdrawal. The percentage of dead cells was calculated from the ratios dead/(dead + live) cells. The numbers show the mean (±SEM) values of nine independent measurements for each time point (three subcultures of three independently infected cultures of 2780a cells). When a two-sided t test was used, the differences in the percentage of dead cells between the SRα- and SRα/Gfi-1-infected cultures were found to be statistically significant (at 24 hr P ≤ 0.0052 and at 48 hr P ≤ 0.00192).