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Página 1 desde 40 resultados
Inducing Apoptosis of Cancer Cells Using Sea Pen Virgularia gustaviana Extract Which is Comparable to Cembrane Diterpene Sarcophine.
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Marine Soft corals have frequently been studied in recent years because of their specific chemical compounds in tissue engineering and regenerative medicine. The aim of this study was to investigate anti-cancer property of extracted compound from Virgularia gustaviana and their effect on inducing of
Cembrane-type diterpenoids from Macaranga pustulata.
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Three new cembrane-type diterpenoids, deheiculatins M-O (1-3), together with five known analogues (4-8), were isolated from the twigs of Macaranga pustulata King ex Hook. The structures of new compounds 1-3 were elucidated by extensive spectroscopic analyses, modified Mosher's method, and the
Sarcophytols A and B inhibit tumor promotion by teleocidin in two-stage carcinogenesis in mouse skin.
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Sarcophytols A and B, isolated from a soft coral, Sarcophyton glaucum, are cembrane-type diterpenes with different numbers of hydroxyl groups. Sarcophytols A and B inhibited tumor promotion by teleocidin in two-stage carcinogenesis experiments on mouse skin. The inhibitory effect of sarcophytol A
Bioactive cembrane-type diterpenoids from the gum-resin of Boswellia carterii.
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Chemical examination of the gum-resin of Boswellia carterii resulted in the isolation and characterization of eighteen new cembrane-type diterpenoids, named as Boscartins P-AG (1-18) and eight known ones. Their structures were established on the basis of extensive spectroscopic (2D NMR, IR, CD, MS
A new cytotoxic cembrane diterpene from the roots of Euphorbia pekinensis Rupr.
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A new cembrane diterpene, named (-)-(1S)-15-hydroxy-18-carboxycembrene, was isolated from petroleum ether extract of the roots of the Euphorbia pekinensis Rupr. To our knowledge, this compound is the first cembrane-type diterpenoid to be found in the family Euphorbiaceae. The structure was
Cembrane-type diterpenoids from the Chinese liverworts Chandonanthus hirtellus and C. birmensis.
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Six new cembrane-type diterpenoids (1-6) were isolated from two species of Chandonanthus: Chandonanones A, B, and D-F (1, 2, and 4-6) were isolated from C. hirtellus, and chandonanones B, C, E, and F (2, 3, 5, and 6) from C. birmensis. Five known diterpenoids,
Lobocrassin B Induces Apoptosis of Human Lung Cancer and Inhibits Tumor Xenograft Growth.
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Lobocrassin B, a natural cembrane-type compound isolated from the soft coral Lobophytum crassum, has been shown to have significant biological effects, including anticancer activity. As the most common cause of cancer mortality worldwide, lung cancer remains a major concern threatening human health.
New Antiproliferative Cembrane Diterpenes from the Red Sea Sarcophyton Species.
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The combination of liquid chromatography coupled to high resolution mass spectrometry (LC-HRESMS)-based dereplication and antiproliferative activity-guided fractionation was applied on the Red Sea-derived soft coral Sarcophyton sp. This approach facilitated the isolation of five new
Sarcophytol A: a new chemotherapeutic and chemopreventive agent for pancreatic cancer.
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Sarcophytol A (SaA), a cembrane-type diterpene isolated from the marine soft coral Sarcophyton glaucum showed anticancer and cancer preventive effects in two different experiments. Growth of transplanted human pancreatic cancer cells (MIA paca-2, 1 x 10(7)) in nude mice (BALB/C 4W female)
Downregulation of Cancer Stemness by Novel Diterpenoid Ovatodiolide Inhibits Hepatic Cancer Stem Cell-Like Traits by Repressing Wnt/[Formula: see text]-Catenin Signaling.
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The hierarchical tumor propagation or cancer stem cells (CSCs) model of carcinogenesis postulates that like physiologic adult stem cell (ASC), the CSCs positioned at the apex of any tumor population form the crux of tumor evolution with a constitutive regenerative capacity and differentiation
Cembrane diterpenoids from the taiwanese soft coral Sarcophyton stolidotum.
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Investigation of an EtOAc-soluble extract of the soft coral Sarcophyton stolidotum resulted in the isolation of seven new 14-membered carbocyclic cembranes, sarcostolides A-G (1-7), together with two known cembrane diterpenes, isosarcophytoxide and isosarcophine. The structural elucidation of these
Bissubvilides A and B, Cembrane-Capnosane Heterodimers from the Soft Coral Sarcophyton subviride.
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Two new biscembranoid-like compounds, bissubvilides A (1) and B (2), were isolated together with sarsolilide B (3), the proposed biogenetic precursor to 1, from the soft coral Sarcophyton subviride. The structures and absolute configurations were solved by spectroscopic analysis and TDDFT/ECD and
Cembrane-type diterpenoids from the South China Sea soft coral Sarcophyton mililatensis.
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Eight cembrane-type diterpenoids, namely, (+)-(6R)-6-hydroxyisosarcophytoxide (1), (+)-(6R)-6-acetoxyisosarcophytoxide (2), (+)-17-hydroxyisosarcophytoxide (3), sarcomililatins A-D (4-7), and sarcomililatol (8), were isolated from the soft
Sandensolide Induces Oxidative Stress-Mediated Apoptosis in Oral Cancer Cells and in Zebrafish Xenograft Model.
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Presently, natural sources and herbs are being sought for the treatment of human oral squamous cell carcinoma (OSCC) in order to alleviate the side effects of chemotherapy. This study investigates the effect of sandensolide, a cembrane isolated from Sinularia flexibilis, to inhibit human OSCC cell
Antimetastatic effect and mechanism of ovatodiolide in MDA-MB-231 human breast cancer cells.
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Cancer metastasis is a primary cause of cancer death. Ovatodiolide, a bioactive cembrane-type diterpenoid isolated from Anisomeles indica (L.) Kuntze (Labiatae), has been shown to inhibit the growth and proliferation of cancer cells. However, the anti-metastatic effects of ovatodiolide on highly
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