Document 0803 DOCN M94B0803 TI Short, terminally phosphorylated oligoriboguanylic acids effectively inhibit cytopathicity caused by human immunodeficiency virus. DT 9412 AU Fujihashi T; Sakata T; Kaji A; Kaji H; Department of Pharmacology, Jefferson Medical College,; Philadelphia, PA 19107. SO Biochem Biophys Res Commun. 1994 Sep 15;203(2):1244-50. Unique Identifier : AIDSLINE MED/94380036 AB Various synthetic ribonucleic acids were evaluated for inhibition of HIV-induced cytopathicity of cultured cells; only poly and oligoguanylic acids, but not other homopolymers, showed potent inhibitory activity. Phosphorylation of either the 5'- or 3'-end of oligoribonucleotides converted short inactive oligomers, such as dimers to effective anti-HIV agents. The efficacy of the 3'-phosphorylated phosphorothioate trimer of guanylic acid was comparable to that of other longer oligonucleotides so far reported. Phosphorothioate oligoriboguanylic acids were superior to the corresponding oligodeoxyguanylic acids in their capacity to prevent HIV cytopathicity. DE Antiviral Agents/*PHARMACOLOGY Cell Line Comparative Study Cytopathogenic Effect, Viral/*DRUG EFFECTS DNA/ANTAGONISTS & INHIB/PHARMACOLOGY Guanine Nucleotides/*PHARMACOLOGY Human HIV/DRUG EFFECTS/*PHYSIOLOGY Macromolecular Systems Oligoribonucleotides/CHEMISTRY/*PHARMACOLOGY Phosphorylation Poly G/PHARMACOLOGY Polyribonucleotides/PHARMACOLOGY Structure-Activity Relationship Thionucleotides/PHARMACOLOGY T4 Lymphocytes JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).