TABLE 2

Incubation conditions for substrates in fresh and cryopreserved rat hepatocyte suspensions


Substrate

Metabolite

Substrate concentration in incubation

Fresh Suspension

Cryopreserved Suspension
Cell density
Incubation time
Cell density
Incubation time
μM 106 cells/ml min 106 cells/ml min
TOL HTOL 100-1500 1 15 0.5 90
7-EC 7-HC 0.05-200 0.5 15 0.5 60
PHE 4-OH PHE 0.1-100 1 15 0.375 60
NDZ 4′-OH NDZ 0.5-500 NDa NDa 0.375 60
OXP
DZ 4′-OH DZ 2.5-250 0.5 10 0.375 30
NDZ
TZ
DEX DOR 1-500 0.5 10 0.5 60
MEM
WAR 4-OH WAR 25-1500 2 60 1 60
6-OH WAR
7-OH WAR
8-OH WAR
10-OH WAR
PROP
-b
5
0.2,1
Up to 60
025, 0.375, 0.5
Up to 120
  • a Incubations for NDZ performed by A. Parker (personal communication, 2004)

  • b PROP CLint determined by the substrate depletion method