rhapontigenin/vėžys

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Preparative enzymatic synthesis and HPLC analysis of rhapontigenin: applications to metabolism, pharmacokinetics and anti-cancer studies.

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OBJECTIVE A facile method was established to enzymatically synthesize rhapontigenin from the glycosylated parent compound rhaponticin. A novel and simple high-performance liquid chromatographic method was developed for the determination of rhapontigenin. The assay was successfully applied to both

Rhapontigenin suppresses cell migration and invasion by inhibiting the PI3K-dependent Rac1 signaling pathway in MDA-MB-231 human breast cancer cells.

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The invasive behavior of cancer cells resulting in metastasis is the major cause of cancer-related deaths. Rhapontigenin (1) has various biological activities including anticancer activities. However, whether and how 1 affects cancer invasion has never been explored. Here, we examined the

Anticancer effect of (E)-2-hydroxy-3',4,5'-trimethoxystilbene on breast cancer cells by mitochondrial depolarization.

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BACKGROUND TMS (2,3',4,5'-tetramethoxystilbene), a stilbene analog derived from rhapontigenin, was previously demonstrated to induce apoptosis in hormone-resistant breast cancer cells. Therefore, this study investigated the anticancer effect of a new stilbene analog, HTMS

In Vitro Estrogenic and Breast Cancer Inhibitory Activities of Chemical Constituents Isolated from Rheum undulatum L.

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We investigated the estrogenic and breast cancer inhibitory activities of chemical constituents isolated from Rhei undulati Rhizoma (roots of Rheum undulatum L.), which is used as a laxative, an anti-inflammatory, and an anti-blood stagnation agent. Estrogen-like activity was studied using the well

Mechanism-based inhibition of human cytochrome P450 1A1 by rhapontigenin.

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Recently we reported that resveratrol (trans-3,4',5-trihydroxystilbene) showed selective inhibition of recombinant human cytochrome P450 (P450) 1A1 in a concentration-dependent manner. The inhibition of recombinant human P450 1A1, 1A2, or 1B1 by various hydroxystilbene compounds having a similar

ATM/CHK/p53 Pathway Dependent Chemopreventive and Therapeutic Activity on Lung Cancer by Pterostilbene.

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Among the many stilbenoids found in a variety of berries, resveratrol and pterostilbene are of particular interest given their potential for use in cancer therapeutics and prevention. We purified four stilbenoids from R. undulatum and found that pterostilbene inhibits cancer cell proliferation more

A specific UDP-glucosyltransferase catalyzes the formation of triptophenolide glucoside from Tripterygium wilfordii Hook. f.

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Tripterygium wilfordii Hook. f. is a perennial woody vine member of the Celastraceae family. As a traditional Chinese medicine, it contains complex chemical components and exerts various pharmacological activities. In the present study, we identified a glucosyltransferase, TwUGT1, that can catalyze

Synthesis and biological evaluation of resveratrol and analogues as apoptosis-inducing agents.

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Resveratrol 1 (3,4',5-trihydroxy-trans-stilbene), a phytoalexin present in grapes and other food products, has recently been suggested as a potential cancer chemopreventive agent based on its striking inhibitory effects on cellular events associated with cancer initiation, promotion, and

Pharmacometrics of stilbenes: seguing towards the clinic.

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Stilbenes are small molecular weight (approximately 200-300 g/mol), naturally occurring compounds and are found in a wide range of plant sources, aromatherapy products, and dietary supplements. These molecules are synthesized via the phenylpropanoid pathway and share some structural similarities to

Bioactive compounds from Stuhlmannia moavi from the Madagascar dry forest.

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Bioassay-directed fractionation of the leaf and root extracts of the antiproliferative Madagascar plant Stuhlmannia moavi afforded 6-acetyl-5,8-dihydroxy-2-methoxy-7-methyl-1,4-naphthoquinone (stuhlmoavin, 1) as the most active compound, with an IC50 value of 8.1 μM against the A2780 human ovarian

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