sesquiterpene/kanker

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Inhibitory effects of acylated acyclic sesquiterpene oligoglycosides from the pericarps of Sapindus rarak on tumor necrosis factor-alpha-induced cytotoxicity.

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Four new acylated acyclic sesquiterpene oligoglycosides (1-4) were isolated from the pericarps of Sapindus rarak DC. together with four known acyclic sesquiterpene oligoglycosides, mukuroziosides Ia (5), Ib (6), IIa (7), and IIb (8). Their structures were elucidated on the basis of chemical and

Sesquiterpene lactones from Carpesium rosulatum with potential cytotoxicity against five human cancer cell lines.

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In search for plant-derived cytotoxicity compound against human cancer cells (A549, SK-OV-3, SK-MEL-2, XF498, HCT15), it was found that the chloroform extracts obtained from the whole plant of Carpesium rosulatum MlQ. (Compositae) exhibited significant cytotoxic activity. Four sesquiterpene lactone,

Cytotoxicity of the Sesquiterpene Lactones Neoambrosin and Damsin from Ambrosia maritima Against Multidrug-Resistant Cancer Cells.

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Multidrug resistance is a prevailing phenomenon leading to chemotherapy treatment failure in cancer patients. In the current study two known cytotoxic pseudoguaianolide sesquiterpene lactones; neoambrosin (1) and damsin (2) that circumvent MDR were identified. The two cytotoxic compounds were

New sesquiterpene lactones from Glechoma hederacea L. and their cytotoxic effects on human cancer cell lines.

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Three new sesquiterpene lactones, 1 α,10 β-epoxy-4-hydroxy-glechoma-5-en-olide (1), 1 β,10 α-epoxy-4,8-dihydroxy-glechoma-5-en-olide (2), and 1 β,10 α;4 α,5 β-diepoxy-8-methoxy-glechoman-8 α,12-olide (3), were isolated from the whole plant of Glechoma hederacea, together with four known

A new sesquiterpene ester from Celastrus orbiculatus reversing multidrug resistance in cancer cells.

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In a search for revertants of multidrug-resistance in cancer cells, a novel (1) and two known (2,3) sesquiterpene esters were isolated from the root of Celastrus orbiculatus. The structure of 1 was elucidated as 1 beta,2 beta-diacetoxy-6 alpha,9 alpha-bis(benzoyloxy)dihydro-beta-agarofuran.

Molecular determinants of cancer cell sensitivity and resistance towards the sesquiterpene farnesol.

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Farnesol is a non-cyclic sesquiterpene (isoprenoid) found in the essential oils of many plants. In cancer biology, farnesylation of mutated Ras oncoproteins allows the proteins to dock to the membrane and be functionalized. Therefore, farnesyltransferase is a target for drug development to inhibit

Inhibition of tumor cell proliferation and induction of apoptosis in human lung carcinoma 95-D cells by a new sesquiterpene from hairy root cultures of Artemisia annua.

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Artemisia annua is a rich source of many bioactive substances, and in our recent work, a new sesquiterpene, (Z)-7-acetoxy-methyl-11-methyl-3-methylene-dodeca-1,6,10-triene (AMDT), was isolated and identified from hairy roots culture of A. annua, and its bioactivity was characterized in this work.

The sesquiterpene lactone eupatolide sensitizes breast cancer cells to TRAIL through down-regulation of c-FLIP expression.

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Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a promising candidate for cancer therapeutics due to its ability to induce apoptosis selectively in cancer cells. However, sensitivity of cancer cells for induction of apoptosis by TRAIL varies considerably. Therefore, it is

Codonolactone, a sesquiterpene lactone isolated from Chloranthus henryi Hemsl, inhibits breast cancer cell invasion, migration and metastasis by downregulating the transcriptional activity of Runx2.

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Metastasis is the most insidious aspect of breast cancer, but effective strategies to control this malignant process are still lacking. In previous studies, we screened over 200 extracts from plants of genus Chloranthaceae by bioactivity-guided fractionation, and found that Codonolactone (CLT)

Natural daucane sesquiterpenes with antiproliferative and proapoptotic activity against human tumor cells.

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Plants of the genera Ferula and Ferulago are known for their complex content in bioactive secondary metabolites such as coumarins, phenylpropanoids, and sesquiterpenes. We used the ground parts of Ferula communis subsp. communis, Ferula glauca subsp. glauca and Ferulago campestris as natural sources

Sesquiterpenes from Syneilesis palmata and their cytotoxicity against human cancer cell lines in vitro.

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The chromatographic separation of the MeOH extract from the aerial parts of Syneilesis palmata led to the isolation of a new sesquiterpene glycoside 4, together with four known compounds. Their structures were characterized to be 4beta,5beta-epoxy-caryophill-8,(15)-ene (1),

Torilin, a sesquiterpene from Torilis japonica, reverses multidrug-resistance in cancer cells.

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A sesquiterpene compound reversing multidrug-resistance in cancer cells was isolated from the fruits of Torilis japonica and the structure was identified as torilin. Torilin potentiated the cytotoxicities of adriamycin, vinblastine, taxol and colchicine against multidrug-resistant KB-V1 and MCF7/ADR

The sesquiterpene lactone polymatin B from Smallanthus sonchifolius induces different cell death mechanisms in three cancer cell lines.

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A 8β-angeloyloxy-9α-hydroxy-14-oxo-acanthospermolide and five known melampolide sesquiterpene lactones (uvedalin, enhydrin, polymatin B, sonchifolin, and fluctuanin) were isolated from the leaves of Smallanthus sonchifolius. The compounds were identified by 1D-, 2D-NMR, HRMS, IR and UV analyses. In

Inhibitory effect of sesquiterpene lactones from Saussurea lappa on tumor necrosis factor-alpha production in murine macrophage-like cells.

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Total methanol extract of Saussurea lappa radix (Compositae) showed potent inhibitory effect on the production of tumor necrosis factor-alpha (TNF-alpha), a proinflammatory cytokine, in murine macrophage-like cell (RAW264.7 cells) in our previous screening studies on 120 Korean medicinal plants. The

In vivo effect of alpha-bisabolol, a nontoxic sesquiterpene alcohol, on the induction of spontaneous mammary tumors in HER-2/neu transgenic mice.

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Breast cancer represents the most commonly diagnosed invasive malignancy in pre- and postmenopausal women in both developed and underdeveloped countries. Taking into account that treatment options, including surgery, have not been able to deal with the growing incidence of breast malignancy, it is

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