Ky, Gouaux, and others for sharing unpublished data and Polina Lyuboslavsky and Kimberly Vellano for excellent technical assistance.0031-6997/11/6303-772?810 25.00 PHARMACOLOGICAL REVIEWS U.S. Government work not protected by U.S. copyright Pharmacol Rev 63:772?810,Vol. 63, No. 3 4135/3701726 Printed in U.S.A.ASSOCIATE EDITOR: ERIC L. BARKERExploring the Neuroimmunopharmacology of Opioids: A