Table 1

First and second rate constants (Tau K1 and K2, respectively) for all proteins followed from a biphasic exponential fit of the data in pericrypt and crypt regions (see materials and methods). Gy50 values were calculated from dose-response curves

Tau 1/K1 (h) Rate of appearanceTau 1/K2 (h) Rate of lossGy50
PericryptCryptPericryptCryptPericryptCrypt
Cytochrome c2.0 (0.8) 1.4 (0.2)83.3 (20.8) 40.0 (4.8)3.8 (0.3)3.2 (0.2)
Caspase7.7 (3.0)16.7 (5.6)76.9 (17.7)166.7 (83.4)2.3 (0.3)1.4 (0.3)
Tau 1/K1 (h) Rate of loss Tau 1/K1(h) Rate of recovery Gy50
Pericrypt Crypt Pericrypt Crypt Pericrypt Crypt
OB cadherin5.0 (2.8)58.8 (27.7)1.3 (0.2)
SM actin16.7 (5.6)66.7 (22.2)2.9 (0.5)
β-catenin26.3 (13.8)50.0 (15.8)1.6 (0.1)1.8 (0.4)
E-cadherin66.6 (24.8)83.3 (64.1)3.3 (0.4)3.4 (0.3)