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podophyllum/vėžys
Nuoroda įrašoma į mainų sritį
Puslapis 1 nuo 74 rezultatus
Lignans from Dysosma versipellis with inhibitory effects on prostate cancer cell lines.
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A new monoepoxylignan, dysosmarol (1), along with eight known compounds, podophyllotoxin (2), 4'-demethylpodophyllotoxin (3), deoxypodophyllotoxin (4), 4'-demethyldeoxypodophyllotoxin (5), diphyllin (6), kaempferol, quercetin, and beta-sitosterol, were isolated from the roots of Dysosma versipellis.
Flavonoids isolated from Sinopodophylli Fructus and their bioactivities against human breast cancer cells.
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Four prenylated flavonoids compounds 1-4, named sinopodophyllines A-D, and a flavonoid glycoside (compound 13), sinopodophylliside A, together with 19 known compounds (compounds 5-12 and 14-24) were isolated from the fruits of Sinopodophyllum hexandrum. The structures of new compounds were
Cytotoxicity of medicinal plants of the West-Canadian Gwich׳in Native Americans towards sensitive and multidrug-resistant cancer cells.
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BACKGROUND
Traditional medicine of the Native Americans has a long tradition of medicinal plants, which also influenced modern oncology. For instance, podophyllotoxin the active ingredient of Podophyllum peltatum L. (Berberidaceae) used by Native Americans to treat warts led to the development of
[Interest of lignans in prevention and treatment of cancers].
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Lignans are diphenolic compounds widely distributed in the plant kingdom. They are mainly localised in lignified tissues, seeds and roots. These molecules are involved in plant defence mechanisms, but are also interesting for human health. Flax lignans belonging to the phytoestrogens are metabolised
4'-Demethyl-deoxypodophyllotoxin glucoside isolated from Podophyllum hexandrum exhibits potential anticancer activities by altering Chk-2 signaling pathway in MCF-7 breast cancer cells.
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We investigated the root of Podophyllum hexandrum as a potential source of lead bioactive metabolites with anticancer activity. The present study led to the isolation of six known aryltetralin-type lignans designated as 4'-demethyl-deoxypodophyllotoxin (1), podophyllotoxin (2),
Cytotoxicity of in vitro produced podophyllotoxin from Podophyllum hexandrum on human cancer cell line.
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Podophyllotoxin was produced by cell culture of Podophyllum hexandrum under in vitro culture conditions. A maximum of 4.26 mg/L of podophyllotoxin was produced when P. hexandrum was cultivated in 3 L stirred tank bioreactor. The compound extracted from the cell culture was applied to the human
Biogenic synthesis of silver nanoparticles using rhizome extract of Dysosma pleiantha and its antiproliferative effect against breast and human gastric cancer cells.
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Synthesis of biogenic metal nanoparticles using plant extract has gained considerable attention in recent years. The present study aims to synthesize and investigate the cytotoxic effect of silver nanoparticles (AgNPs) from Dysosma pleiantha rhizome extract. The green biosynthesis of AgNPs was
Absolute configuration of podophyllotoxone and its inhibitory activity against human prostate cancer cells.
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Podophyllotoxone (1) was isolated from the roots of Dysosma versipellis. The structure was determined by spectroscopic analysis in combination with single-crystal X-ray analysis. The absolute configuration of compound 1 was assigned based on the Flack parameter. It showed significant inhibitory
Therapeutic applications of medicinal plants in the treatment of breast cancer: a review of their pharmacology, efficacy and tolerability.
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Various active compounds (or their semi-synthetic derivatives) derived from medicinal plants have been assessed for their efficacy and tolerability in the treatment of breast cancer. Some of these plant species, including Taxus baccata (paclitaxel, docetaxel), Podophyllum peltatum (etoposide),
Novel biotransformation process of podophyllotoxin to 4 β-sulfur-substituted podophyllum derivates with anti-tumor activity by Penicillium purpurogenum Y.J. Tang.
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According to the structure-function relationship of podophyllotoxin (PTOX) and its analogue of 4'- demethylepipodophyllotoxin (DMEP), the 4 β-substitution of sulfur-containing heterocyclic compounds with a carbon-sulfur bond at 4 position of PTOX or DMEP is an essential modification direction for
Stable Gold Nanorods Conjugated Liposomal Podophyllotoxin Nanocomposites for Synergistic Chemo-Photothermal Cancer Therapy.
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As a phenyltetralin-type lignin isolated from roots and rhizomes of Podophyllum hexandrum, podophyllotoxin (POD) possesses a great deal of biological activities, especially the anticancer activity via preventing the division of cancerous cells. However, its practical clinical application as
Production of tumour-inhibitory lignans in callus cultures of Podophyllum hexandrum.
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Callus cultures have been established from root explants of aseptically-grown Podophyllum hexandrum seedlings. A fully defined medium based on Gamborg's B5 salts supplemented with 2/4-dichlorophenoxyacetic acid, gibberellic acid and 6-benzylaminopurine was effective for both initiation and sustained
Influence of ecological factors on the production of active substances in the anti-cancer plant Sinopodophyllum hexandrum (Royle) T.S. Ying.
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The quality of traditional Chinese herbal medicine, which plays a very important role in the health system of China, is determined by the active substances produced by the plants. The type, content, and proportion of these substances may vary depending on ecological factors in areas where the plants
Chemometric evaluation of the anti-cancer pro-drug podophyllotoxin and potential therapeutic analogues in Juniperus and Podophyllum species.
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BACKGROUND
Podophyllotoxin, deoxypodophyllotoxin, demethylpodophyllotoxin and podophyllotoxone are four therapeutically potent secondary metabolites. There is a dearth of information on the holistic analysis of their distribution pattern in both phylogenetic and ecological contexts.
OBJECTIVE
To
Tubulin structure-based drug design for the development of novel 4β-sulfur-substituted podophyllum tubulin inhibitors with anti-tumor activity.
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The well-characterized anti-tubulin agent, podophyllotoxin (PTOX), with the 4'-position methoxyl group, targets the colchicines domain located between α- and β-tubulin. Two guanosine triphosphate (GTP) analogs of the tubulin-binding region were synthesized from PTOX, where a hydroxyl group was
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