Down‐regulation of the organic cation transporter 1 of rat liver in obstructive cholestasis
Gerald U. Denk, Carol J. Soroka, Albert Mennone, Hermann Koepsell, Ulrich Beuers, James L. Boyer – 26 April 2004 – The liver plays a major role in biotransformation and elimination of various therapeutic agents and xenobiotics, many of which are organic cations and substrates of the organic cation transporter 1 (Oct1, Slc22a1). Oct1 is expressed at the basolateral membranes of hepatocytes and proximal renal tubules. Although Oct1 is the major uptake mechanism in hepatocytes for many pharmaceutical compounds, little is known about the effects of liver injury on this process.