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ADME /DRUG METABOLISM |
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DRUG METABOLISM (GLP)
Human hepatocytes, rat hepatocytes, microsomes
Cell lines with stable expression of Cytochrome P450-isoenzymes
Cell lines with stable expression of phase II-enzymes (sulfotransferases)
Parameters:
Cytotoxicity (human hepatocytes)
Metabolic stability
Induction (mRNA-level, activity level)
Inhibition (screen, IC50, Ki)
P-GLYCOPROTEIN (PGP)
Pgp induction / inhibition assay
Caco-2 cells, LS180 cells
primary bovine brain capillary endothelial cells
Parameters:
Transport activity (rhodamine 123, pgp substrate)
Transport activity (pgp substrate)
Protein level (Western blot)
PHARMACOKINETICS (ADME) <top>
Pharmacokinetic studies with respect to ADME and distribution into organs (rodents).
In vivo models:
Rats, mice, guinea pigs, hamsters
Parameters:
Individual blood level time profile
Mean blood level time profile 96 h i.v./p.o.
Distribution of radioactivity into cells and plasma
Distribution of radioactive test compound into organs
Excretion of urine, faeces total, excretion into bile
Metabolic pattern by DC