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Puslapis 1 nuo 40 rezultatus
Multiple readout assay for hormonal (androgenic and antiandrogenic) and cytotoxic activity of plant and fungal extracts based on differential prostate cancer cell line behavior.
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BACKGROUND
Prostate cancer is one of the most diagnosed forms of cancer among men in western regions. Many traditional applications or phytotherapeutic concepts propose to inhibit the proliferation of prostate cancer cells. In order to detect influences of plant or fungal extracts and derived
Pyramidatine (Z88) Sensitizes Vincristine-Resistant Human Oral Cancer (KB/VCR) Cells to Chemotherapeutic Agents by Inhibition of P- glycoprotein.
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BACKGROUND
Multi-drug resistance (MDR) remains a major impediment in cancer therapy. A major goal for scientists is to discover more effective compounds that are able to circumvent MDR and simultaneously have minimal adverse side effects.
OBJECTIVE
In the present study, we aim to determine the
Cancer chemopreventive activity of odorine and odorinol from Aglaia odorata.
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In the course of our continuing search for novel cancer chemo-preventive agents from natural sources, we have carried out a primary screening in vitro assay of the compounds isolated from Aglaia odorata. Consequently, aminopyrrolidine-diamides, odorine and odorinol, were obtained as active
A phenolic ester from Aglaia loheri leaves reveals cytotoxicity towards sensitive and multidrug-resistant cancer cells.
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BACKGROUND
Bioactivity-guided fractionation of extracts of Aglaia loheri Blanco (Meliaceae) yielded a cytotoxic isolate, termed Maldi 531.2[M + H]+. This phenolic ester was further investigated for its in vitro cytotoxicity toward human CCRF-CEM leukemia cells and their multi-drug resistant (MDR)
Potential of cyclopenta[b]benzofurans from Aglaia species in cancer chemotherapy.
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During the past few years, a group of cyclopenta[b]benzofurans from the plant genus Aglaia has received broad scientific attention as interesting natural product lead compounds with potential anticancer and insecticidal activities. Since the first cyclopenta[b]benzofuran derivative, rocaglamide,
Cycloart-24-ene-26-ol-3-one, a New Cycloartane Isolated from Leaves of Aglaia exima Triggers Tumour Necrosis Factor-Receptor 1-Mediated Caspase-Dependent Apoptosis in Colon Cancer Cell Line.
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Plants in the Meliaceae family are known to possess interesting biological activities, such as antimalaral, antihypertensive and antitumour activities. Previously, our group reported the plant-derived compound cycloart-24-ene-26-ol-3-one isolated from the hexane extracts of Aglaia exima leaves,
Substrate Specificity of Aglaia loheri Active Isolate towards P-glycoprotein in Multidrug-Resistant Cancer Cells.
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Multidrug resistance (MDR) is a major contributory factor in the failure of chemotherapy. Concrete interpretation of P-glycoprotein (P-gp) substrate specificity, whether a substance is a substrate or an inhibitor, represents an important feature of a compound's pharmaceutical profiling in drug
Two new lignans from twigs of Aglaia odorata.
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HPLC-guided separation of twigs of Aglaia odorata led to the isolation of eight lignans, including two new ones, 3'-methoxy-N-demethylrocaglamide (1) and 4'-O-demethyl-deacetylaglaxiflorin A (2). Compound 1 showed excellent cytotoxicity against three human cancer cell lines, HeLa, SGC-7901 gastric
Dolabellane diterpenoids from Aglaia odorata.
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Dolabellane diterpenoids, (1R,3E,7E,10S,11S,12R)-dolabella-3,7-dien-10,18-diol (1), (1R,3S,7E,11S,12R)-dolabella-4(16),7-dien-3,18-diol (2), (1R,7E,11S,12R)-18-hydroxydolabella-4(16),7-dien-3-one (3), (1R,3S,4S,7E,11S,12R)-3,4-epoxydolabella-7-en-18-ol (4), and
Chemical constituents from the leaves of Aglaia odorata.
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A new dammarane triterpene, 3-acetoxy aglinin C (1), and a new aglain, 10-oxo-aglaxiflorin D (2), along with five known compounds, 3-7, were isolated from the leaves of Aglaia odorata using chromatographic methods. The structures of 1 and 2 were determined on the basis of spectroscopic analyses.
New sesquiterpenoids from Aglaia odorata var. microphyllina and their cytotoxic activity.
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One new norsesquiterpene (1), and four new sesquiterpenes (2 - 5), along with four known ones, were isolated from the twigs of Aglaia odorata var. microphyllina C. DC. Monogr. Their structures were established based on spectroscopic methods including HR-ESI-MS, 1D, and 2D NMR. Compounds 1, 3, and 6
Triterpenoids from Aglaia abbreviata and their cytotoxic activities.
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Six new triterpenoids (1-6), along with 10 known compounds, were isolated from the stems of Aglaia abbreviata. The structures of 1-6 were elucidated on the basis of their spectroscopic data. Compounds 1-6 were evaluated for their cytotoxic activities against a small panel of human tumor cell lines.
Cytotoxic triterpenoids from the stem bark of Aglaia angustifolia
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A seco-apotirucallane-type triterpenoid, namely angustifolianin (1), along with three dammarane-type triterpenoids, (20S, 24S)-epoxy-dammarane-3β,25-diol (2), 3-epi-cabraleahydroxylactone (3), and cabralealactone (4), were isolated from the stem bark of
Cytostatic mechanism and antitumor potential of novel 1H-cyclopenta[b]benzofuran lignans isolated from Aglaia elliptica.
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A total of five 1H-cyclopenta[b]benzofuran lignans (1-5) isolated from the stems of Aglaia elliptica B1. (Meliaceae) inhibited the growth of human cancer cells in culture. Of particular note, the IC50 values observed with 1 (methyl rocaglate), 2 (4'-demethoxy-3',4'-methylenedioxy-methyl rocaglate)
Cytotoxic Activity of Inositol Angelates and Tirucallane-Type Alkaloids from Amoora Dasyclada.
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Three new inositol angelate compounds (1-3) and two new tirucallane-type alkaloids (4 and 5) were isolated from the Amoora dasyclada, and their structures were established mainly by means of combination of 1D and 2D nuclear magnetic resonance and HR-ESI-MS. Based on
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