title: Inhibition of human immunodeficiency viral replication by tannins and related compounds.
abstract: Among 87 chemically defined tannins and related compounds, several hydrolyzable tannins, but not condensed tannins or other lower molecular weight polyphenols, significantly inhibited both the cytopathic effect of human immunodeficiency virus (HIV) and the expression of HIV antigen in human lymphotropic virus type I (HTLV-1)-positive MT-4 cells. The 50% effective concentrations (2.0-4.8 micrograms/ml) of the active compounds were 13- to 15-fold lower than their 50% cytotoxic concentrations. Their anti-HIV activity was demonstrated to be mediated, at least in part, by inhibition of HIV adsorption to the cells.
authors.affiliation: Department of Microbiology, Tokyo Medical and Dental University School of Medicine, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Nakashima
authors.forename: T
authors.initials: T
authors.lastname: Murakami
authors.forename: N
authors.initials: N
authors.lastname: Yamamoto
authors.forename: H
authors.initials: H
authors.lastname: Sakagami
authors.forename: S
authors.initials: S
authors.lastname: Tanuma
authors.forename: T
authors.initials: T
authors.lastname: Hatano
authors.forename: T
authors.initials: T
authors.lastname: Yoshida
authors.forename: T
authors.initials: T
authors.lastname: Okuda
mesh_terms: D000327:Adsorption; D002460:Cell Line; D003588:Cytopathogenic Effect, Viral / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D005419:Flavonoids; D015488:HIV Antigens / Q000032:analysis; D015497:HIV-1 / Q000187:drug effects* / Q000276:immunology / Q000502:physiology; D006801:Humans; D047348:Hydrolyzable Tannins; D010636:Phenols / Q000494:pharmacology*; D011108:Polymers / Q000494:pharmacology*; D059808:Polyphenols; D013329:Structure-Activity Relationship; D013634:Tannins / Q000494:pharmacology*
chemical_list: D005419:Flavonoids; D015488:HIV Antigens; D047348:Hydrolyzable Tannins; D010636:Phenols; D011108:Polymers; D059808:Polyphenols; D013634:Tannins; C063356:camelliin B