MOL (# 4994) 1 Receptor endocytosis counteracts the development of opioid tolerance Thomas Koch, Antje Widera, Katharina Bartzsch, Stefan Schulz, Lars-Ove Brandenburg, Nicole Wundrack, Andrea Beyer, Gisela Grecksch, and Volker Höllt* Department of Pharmacology and Toxicology, Otto-von-Guericke University, 39120 Magdeburg, Germany Molecular Pharmacology Fast Forward. Published on October 8, 2004 as doi:10.1124/mol.104.004994 Copyright 2004 by the American Society for Pharmacology and Experimental Therapeutics. This article has not been copyedited and formatted. The final version may differ from this version. Molecular Pharmacology Fast Forward. Published on October 8, 2004 as DOI: 10.1124/mol.104.004994 at ASPET Journals on June 6, 2016 molpharm.aspetjournals.org Downloaded from