tylophora ovata/cáncer

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Tylophorine Abrogates G2/M Arrest Induced by Doxorubicine and Promotes Increased Apoptosis in T47D Breast Cancer Cells

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Background: The effects of tylophorine, a natural alkaloid found in Tylophora indica, administered as a single compound or in combination with doxorubicin on cell cycling and apoptosis were assessed in T47D breast cancer cells, selected as a model system for breast cancer. Methods: Cell cycle

In vitro cytotoxic activity of phenanthroindolizidine alkaloids from Cynanchum vincetoxicum and Tylophora tanakae against drug-sensitive and multidrug-resistant cancer cells.

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Two known phenanthroindolizidine alkaloids, (-)-(R)-13aalpha-antofine (1) and (-)-(R)-13aalpha-6-O-desmethylantofine (2), and two new natural products, (-)-(R)-13aalpha-secoantofine (3) and (-)-(R)-13aalpha-6-O-desmethylsecoantofine (4), were isolated from Cynanchum vincetoxicum. The structures of

Phenanthroindolizidine alkaloids as cytotoxic substances in a Danaid butterfly, Ideopsis similis, against human cancer cells.

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We previously reported the presence of cytotoxic substances in extracts of the Danaid butterfly, Ideopsis similis. In the present study, we isolated cytotoxic substances against a human gastric cancer cell line, TMK-1, in I. similis pupae, with an activity similar to that of the adult butterfly. The

Anti-tumor Activity of Tylophora Asthmatica.

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T. asthmatica, which belongs to the family Asclepiadaceae is a small twining a plant with long fleshy roots. The plant shows broad activity against EA and DLA cells. The intraperitoneal injection of PE extract obtained from the powdered entire plant material to the tumor cell transplanted animals

The potential impacts of tylophora alkaloids and their derivatives in modulating inflammation, viral infections, and cancer.

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Cancer chemotherapies or antitumor agents mainly remain the backbone of current treatment based on killing the rapidly dividing cancer cell such as tylophora alkaloids and their analogues which have also demonstrated anticancer potential through diverse biological pathways including regulation of

Anti-cancer activity of the extracts of stem and leaf of Tylophora indica.

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[Investigations on secondary metabolites of endophyte Diaporthe sp. hosted in Tylophora ovata].

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One new compound (2S, 3S)-2,3-dihydroxybutyl 2-hydroxy-3,5,6-trimethylbenzoate (1) and six known compounds xylariphthalide A (2), convolvulol (3), cis-4-hydroxy-6-deoxytalone (4), phomoxydienes B (5), 5,6-dihydroxy-2,3,6-trimethylcyclohex-2-enone (6), trans-cyclo-(D-tryptophanyl-L-tyrosyl) (7) were

Tylophora indica (Burm. f.) merr: An insight into phytochemistry and pharmacology

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Ethnopharmacological relevance: Tylophora indica (Burm. f.) Merr. commonly known as ananthamool is a climbing perennial plant which is widely used in Indian traditional medicine. T. indica exhibits diverse range of pharmacological

Isolation and biological activities of phenanthroindolizidine and septicine alkaloids from the Formosan Tylophora ovata.

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An investigation of alkaloids present in the leaves and stems of Tylophora ovata led to the isolation of two new septicine alkaloids and one new phenanthroindolizidine alkaloid, tylophovatines A, B, C (1, 2, and 5), respectively, together with two known septicine and six known phenanthroindolizidine

Tylophorine, a phenanthraindolizidine alkaloid isolated from Tylophora indica exerts antiangiogenic and antitumor activity by targeting vascular endothelial growth factor receptor 2-mediated angiogenesis.

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BACKGROUND Anti-angiogenesis targeting VEGFR2 has been considered as an important strategy for cancer therapy. Tylophorine is known to possess anti-inflammatory and antitumor activity, but its roles in tumor angiogenesis, the key step involved in tumor growth and metastasis, and the involved

Sesquiterpenes from an Endophytic Aspergillus flavus.

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Eight new cadinene-sesquiterpenes (1-8), one eudesmane-sesquiterpene (9), and three known compounds (10-13) were isolated from an endophytic fungus, Aspergillus flavus, which was isolated from a toxic medicinal plant, Tylophora ovata. Their structures were elucidated by interpretation of

Induction of apoptosis in a human erythroleukemic cell line K562 by tylophora alkaloids involves release of cytochrome c and activation of caspase 3.

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Tylophora alkaloids are plant products known for their antiasthamatic and antiproliferative activities. The underlying cellular changes resulting from inhibition of proliferation were investigated. Tylophora alkaloids induced apoptosis in K562 cells with characteristic apoptotic features like

Total syntheses of the tylophora alkaloids cryptopleurine, (-)-antofine, (-)-tylophorine, and (-)-ficuseptine C.

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A concise, efficient and modular approach to the tylophora alkaloids is described, a family of potent cytotoxic agents that are equally effective against drug sensitive and multidrug resistant cancer cell lines. The advantages of the chosen route are illustrated by the total syntheses of the

Screening and GC-MS profiling of ethanolic extract of Tylophora pauciflora.

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Medicinal plants are boundless source of raw materials for the pharmaceutical. Identification of natural compounds from medicinal plant is helpful in the discovery of novel therapeutic agents. Tylophora pauciflora is a medicinal plant, which possess many biological activities such as antioxidant

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