hydroxycoumarin/krabbamein

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Microwave-assisted preparation, structural characterization, lipophilicity, and anti-cancer assay of some hydroxycoumarin derivatives.

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UNASSIGNED A new series of hydroxycoumarin derivatives has been synthesized using conventional synthesis. The syntheses were accelerated by microwave assistance. Yields in both cases were comparable (59-69 %). The structures were established by 1H and 13C NMR spectroscopy and high-resolution mass

Cytostatic hydroxycoumarin OT52 induces ER/Golgi stress and STAT3 inhibition triggering non-canonical cell death and synergy with BH3 mimetics in lung cancer.

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Coumarins are natural compounds with antioxidant, anti-inflammatory and anti-cancer potential known to modulate inflammatory pathways. Here, non-toxic biscoumarin OT52 strongly inhibited proliferation of non-small cell lung cancer cells with KRAS mutations, inhibited stem-like characteristics by

Association between Polyphenol Intake and Breast Cancer Risk by Menopausal and Hormone Receptor Status.

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There is limited evidence of phenolic compounds acting as protective agents on several cancer types, including breast cancer (BC). Nevertheless, some polyphenol classes have not been investigated and there is a lack of studies assessing the effect on menopausal status and hormone receptor status as

Sweet Potato Peels and Cancer Prevention.

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A bioassay-guided fractionation of an alcoholic extract from the peels of Ipomoea batatas Lam has been carried out. Sulforhodamine B and 2,2-diphenyl-1-picrylhydrazyl (DPPH) assays were used to evaluate the anticancer and antioxidant potential, respectively, while silica gel column chromatography

Dicoumarol enhances doxorubicin-induced cytotoxicity in p53 wild-type urothelial cancer cells through p38 activation.

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OBJECTIVE To investigate the effectiveness of a combined treatment of 3-30-methylene-bis[4-hydroxycoumarin] (dicoumarol) with doxorubicin for the treatment of urothelial cancer, as doxorubicin is a common chemotherapeutic agent but its therapeutic efficacy is limited. METHODS The synergistic effect

Synthesis, characterization and unravelling the molecular interaction of new bioactive 4-hydroxycoumarin derivative with biopolymer: Insights from spectroscopic and theoretical aspect.

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In the progress of small molecule as drug candidates, 4-hydroxycoumarin based compounds bearing a crucial place as potent antibiotic agents with appreciable safety in drug invention. Being synthetically and easily obtainable, 4-hydroxycoumarin related compounds with planar structure have been

Effects of coumarin and 7OH-coumarin on bcl-2 and Bax expression in two human lung cancer cell lines in vitro.

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Coumarin and its derivative 7-hydroxycoumarin (7-OHC) have antitumor and antimetastatic properties. The purpose of this study was to investigate the possible effects of these compounds on expression of the bcl-2 and Bax oncoproteins in two human lung cancer cell lines, A427 and Calu-1. The cells

Antitumor and immunomodulatory effect of coumarin and 7-hydroxycoumarin against Sarcoma 180 in mice.

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The antitumor effect of peroral treatment with coumarin and its main metabolite in humans 7-hydroxycoumarin (7-OHC) against Sarcoma 180 in mice was studied. Both agents inhibited tumor growth and increased survival time of tumor-bearing animals. The antitumor effect was better when coumarins were

Antitumour activity of coumarin and 7-hydroxycoumarin against 7,12-dimethylbenz[a]anthracene-induced rat mammary carcinomas.

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Female SD rats with established 7,12-dimethylbenz[a]anthracene (DMBA)-induced mammary tumours were treated with coumarin (20 mg/kg body weight; six times per week) or its metabolite 7-hydroxycoumarin (20 mg/kg) for 4 weeks. The anti-oestrogen tamoxifen (8.8 mg/kg) served as the reference drug. The

Coumarin polycaprolactone polymeric nanoparticles: light and tumor microenvironment activated cocktail drug delivery.

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Highly sensitive hypoxia (H₂O₂)-activated photoresponsive polymeric nanoparticles for cocktail delivery of anticancer drugs doxorubicin (Dox) and chlorambucil (Cbl) were developed. The photoresponsive polymer conjugate was constructed by ring-opening polymerization (ROP) of

Potential antiproliferative effect of isoxazolo- and thiazolo coumarin derivatives on breast cancer mediated bone and lung metastases.

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The study highlights the current progress in the development of coumarin scaffolds for drug discovery as novel anticancer agents in metastatic breast cancer. Eight compounds, combining the coumarin core and five membered heterocycles (isoxazoles and thiazoles) in hydrazinyldiene-

Synthesis and cellular characterization of novel isoxazolo- and thiazolohydrazinylidene-chroman-2,4-diones on cancer and non-cancer cell growth and death.

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Coumarins are extensively studied anticoagulants that exert additional effects such as anticancerogenic and even anti-inflammatory. In order to find new drugs with anticancer activities, we report here the synthesis and the structural analysis of new coumarin derivatives which combine the coumarin

Antimetastatic, antineoplastic, and toxic effects of 4-hydroxycoumarin in a preclinical mouse melanoma model.

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OBJECTIVE We have previously reported that in vitro treatment of B16-F10 melanoma cells with 4-hydroxycoumarin (4-HC) decreases their metastatic potential. However, the antimetastatic efficacy of 4-HC in vivo is unknown; therefore, we investigated the antimetastatic and antineoplastic effects of

Synthesis, computational study and cytotoxic activity of new 4-hydroxycoumarin derivatives.

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Six new 4-hydroxycoumarin derivatives have been synthesized. They were characterized by UV-vis, IR, (1)H NMR, (13)C NMR, mass spectral data, elemental analysis, TLC and melting point determination. The new 4-hydroxycoumarin derivatives are studied by computational methods--DFT (B3LYP) and force

Combination of 7-hydroxycoumarin in a platinum(IV) complex derived from cisplatin enhanced cytotoxicity with multiple mechanisms of action.

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A novel compound, Cou-platin, composed of 7-hydroxycoumarin and a platinum(IV) moiety derived from cisplatin was designed and synthesized. Significantly, Cou-platin exhibited more potent in vitro antitumor activity against all tested cancer cell lines than that of cisplatin, which was mainly

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