title: Effect of Perilla frutescens on nitric oxide production and DNA synthesis in cultured murine vascular smooth muscle cells.
abstract: The effects of perilla (Perilla frutescens, Labiatae) on murine cultured vascular smooth muscle cells (VSMC) were investigated. The water extract of perilla leaves induced nitric oxide (NO) production of VSMC and this effect was synergistically augmented when combined with interferon (IFN)-gamma or tumour necrosis factor (TNF)-alpha, while the perilla extract significantly inhibited NO production induced by IFN-gamma combined with lipopolysaccharide (LPS). Northern blot analysis revealed that these effects of the perilla extract paralleled mRNA expression of inducible nitric oxide synthase. However, the perilla extract significantly inhibited platelet derived growth factor (PDGF) or TNF-alpha-induced VSMC proliferation measured as DNA synthesis. The inhibitory effect of the perilla extract on TNF-alpha-induced VSMC proliferation was significantly suppressed by N(G)-monomethyl-L-arginine, a non-specific nitric synthase inhibitor, suggesting that this effect was partially mediated by NO production as an autocrine/paracrine factor. The present findings suggest that perilla would be useful for the prevention of vascular diseases such as arteriosclerosis.
authors.affiliation: Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan.
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Makino
authors.forename: Takahiko
authors.initials: T
authors.lastname: Ono
authors.forename: Eri
authors.initials: E
authors.lastname: Muso
authors.forename: Gisho
authors.initials: G
authors.lastname: Honda
mesh_terms: D000818:Animals; D001011:Aorta / Q000166:cytology; D001161:Arteriosclerosis / Q000517:prevention & control; D015152:Blotting, Northern; D002478:Cells, Cultured / Q000187:drug effects; D004261:DNA Replication / Q000187:drug effects*; D005260:Female; D006801:Humans; D007371:Interferon-gamma / Q000494:pharmacology; D019686:Lamiaceae; D051379:Mice; D008807:Mice, Inbred BALB C; D009131:Muscle, Smooth, Vascular / Q000166:cytology / Q000187:drug effects*; D009569:Nitric Oxide / Q000096:biosynthesis*; D019001:Nitric Oxide Synthase / Q000235:genetics / Q000378:metabolism; D052247:Nitric Oxide Synthase Type II; D008517:Phytotherapy; D010936:Plant Extracts / Q000494:pharmacology* / Q000627:therapeutic use; D012333:RNA, Messenger / Q000378:metabolism; D014409:Tumor Necrosis Factor-alpha / Q000494:pharmacology
chemical_list: D010936:Plant Extracts; D012333:RNA, Messenger; D014409:Tumor Necrosis Factor-alpha; D009569:Nitric Oxide; D007371:Interferon-gamma; C496319:NOS2 protein, human; D019001:Nitric Oxide Synthase; D052247:Nitric Oxide Synthase Type II; C496317:Nos2 protein, mouse