Table 1.

p16^ink4A expression in preleuikemia thymocytes

	Ratio transgene p16ink4a/GAPDH	Ratio endogenous p16ink4a/GAPDH
Group 1	55 × 10−2	5.4 × 10−4
Group 2	4 × 10−2	2.5 × 10−4

Quantitative measurement by RQ-PCR of p16^INK4A transgene and endogenous p16^INK4A expression normalized with Gapdh expression in preleukemia thymocytes. Group 1 and group 2 were of 3- to 4-week-old individual mice that were first tested by fluorescence-activated cell sorter (FACS).