Table 1.

Expression Patterns of Multiple Transporters in Multiple Tissues

Tissue	Uptake Transporters	Export Transporters
Liver (cell type)
Hepatocytes	From serum: OSTα/ß, NTCP, OATP	To bile: MRP2, MDR2, BSEP
		To serum: OSTα/ß, MRPs
Cholangiocytes	From bile: ASBT	To serum: OSTα/ß
Colon	From feces: ASBT	To serum: OSTα/ß
Kidneys	From serum: ASBT	To serum/urine: MRP2, OSTα/ß

NTCP, sodium taurocholate transporting polypeptide; MRP, multidrug resistance-associated protein; MDR, multidrug resistance protein; OST, organic solute transporters; ASBT, apical sodium-dependent bile acid transporters, organic anion-transporting polypeptide.