Royleanone - CAS 6812-87-9
Catalog number: 6812-87-9
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Royleanone is a quinone compound found in the herbs of Salvia prionitis.
Yellow powder
1-hydroxy-4b,8,8-trimethyl-2-propan-2-yl-5,6,7,8a,9,10-hexahydrophenan threne-3,4-dione
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1.Cytotoxic and DNA-damaging effects of diterpenoid quinones from the roots of Salvia officinalis L. on colonic and hepatic human cells cultured in vitro.
Slamenová D;Masterová I;Lábaj J;Horváthová E;Kubala P;Jakubíková J;Wsólová L Basic Clin Pharmacol Toxicol. 2004 Jun;94(6):282-90.
Three diterpenoid quinones (royleanone- SAR 3, horminone- SAR 26, and acetyl horminone- SAR 43) isolated from the roots of Salvia officinalis L. were tested for their cytotoxic and DNA-damaging activity in human colon carcinoma cells Caco-2 and human hepatoma cells HepG2 cultured in vitro. Cytotoxicity was measured by the trypan blue exclusion technique and induction of apoptosis was evaluated by flow immunofluorocytometry after 30-300 min. exposure of HepG2 and Caco-2 cells to diterpenoid quinones and following 24 hr post-incubation in the culture medium. Induction of DNA breaks was measured after 60 min. exposure of cells to different concentrations of the compounds studied by the alkaline elution of DNA and by the Comet assay. Though all the quinones tested decreased the viability of the cells studied proportionally to the concentration and to the time of treatment (cytotoxicity= 30-60%), the increased level of apoptotic nuclei comparable to the level of apoptotic nuclei induced by a topoisomerase I inhibitor was proved only in HepG2 cells treated with 1x10(-4) mol/l SAR 26 or SAR 43. Either no or marginal increase of the level of apoptotic nuclei was observed in SAR 3-treated HepG2 cells and in SAR 3-, SAR 26- or SAR 43-treated Caco-2 cells.
2.Diterpenoids from Salvia prionitis.
Lin LZ;Wang XM;Huang XL;Huang Y;Yang BJ Planta Med. 1988 Oct;54(5):443-5.
Seven diterpenoids, 3-ketosapriparaquinone ( 1), salvilenone, 3-hydroxysalvilenone ( 2), arucadiol, royleanone, sugiol, and ferruginol were isolated from the root of SALVIA PRIONITIS Hance (Labiatae); Compounds 1 and 2 are new natural products. The structure of 1 was established through the interpretation of spectral data.
3.Effect of abietane diterpenes from Plectranthus grandidentatus on T- and B-lymphocyte proliferation.
Cerqueira F;Cordeiro-Da-Silva A;Gaspar-Marques C;Simões F;Pinto MM;Nascimento MS Bioorg Med Chem. 2004 Jan 2;12(1):217-23.
Five known abietane diterpenes of the royleanone and coleon type, namely, fatty acid esters of 7alpha-acyloxy-6beta-hydroxyroyleanone (1), grandidone A (2), 7alpha-acetoxy-6beta-hydroxyroyleanone (3), 6beta,7alpha-dihydroxyroyleanone (4) and coleon U (5), isolated from Plectranthus grandidentatus, were evaluated for their effect on the proliferation of human lymphocytes induced by the mitogen PHA. All except 4, showed a dose-dependent suppressor effect, with 3 yielding the most potent antiproliferative activity, followed by 5. These two compounds, that represent diterpenes of the royleanone and coleon type respectively, were also shown to be potent inhibitors of mouse splenocyte proliferation induced by ConA or LPS mitogens. However, the sensitivity of ConA-stimulated splenocytes to their suppressive effect was higher, suggesting a preferential inhibition of T-lymphocyte proliferation. The antiproliferative activity of 3 seemed to be exerted without affecting the expression of the lymphocyte activation marker CD69. On the contrary, 5 was shown to reduce the expression of CD69 of TCD8(+) and B-cells, suggesting a relationship between its antiproliferative effect and the expression of this early marker of activation on these cell populations.
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