Document 0304 DOCN M9490304 TI Delta opioid receptor gene expression in lymphocytes. DT 9411 AU Chuang LF; Chuang TK; Killam KF Jr; Chuang AJ; Kung HF; Yu L; Chuang RY; Department of Medical Pharmacology and Toxicology, University of; California, Davis 95616. SO Biochem Biophys Res Commun. 1994 Aug 15;202(3):1291-9. Unique Identifier : AIDSLINE MED/94338340 AB Previous studies have shown that morphine stimulates simian immunodeficiency virus (SIV) replication in SIV-infected human CEM x174 cells as well as in monkey lymphocytes through a mechanism of delaying the lysis of infected cells (Biochem. Biophys. Res. Commun. 195:1165-1173, 1993). The present study describes the identification of brain-like opioid receptor sequences in RNA transcripts of both CEM x174 cells and monkey lymphocytes. Study of the gene sequence of a lymphocyte opioid receptor encompassing the third transmembrane domain and the third cytoplasmic loop indicates a 96% homology in amino acid composition to the delta opioid receptor in brain cells. Expression of such an opioid receptor sequence in lymphocytic cells is constitutive, since it could be detected in both saline-treated and morphine-treated monkeys as well as in morphine-treated monkeys after detoxification. DE Amino Acid Sequence Animal Base Sequence Blotting, Southern Brain/METABOLISM Cells, Cultured DNA Primers *Gene Expression Human Lymphocytes/*METABOLISM Macaca mulatta Male Molecular Sequence Data Polymerase Chain Reaction Receptors, Opioid, delta/*GENETICS RNA, Messenger/GENETICS/METABOLISM Sequence Homology, Amino Acid Support, U.S. Gov't, P.H.S. JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).