alpha lapachone/злаякасная пухліна

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14 вынікі

Naphthoquinone-based hydrazone hybrids: synthesis and potent activity against cancer cell lines

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

Background: Natural naphthoquinones have shown diversified biological activities including antibacterial, antifungal, antimalarial, and cytotoxic activities. However, they are also compounds with acute cytotoxicity, immunotoxicity,

Evaluation of the potential cancer chemotherapeutic efficacy of natural product isolates employing in vivo hollow fiber tests.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

The hollow fiber test has been developed for the preliminary in vivo assessment of cancer chemotherapeutic efficacy of selected natural products. Using this model, we have established growth conditions for HL-60, HUVEC, Ishikawa, KB, KB-V1, LNCaP, Lu1, MCF-7, Mel2, P-388, and SW626 cells implanted

Inhibition of potentially lethal DNA damage repair in human tumor cells by beta-lapachone, an activator of topoisomerase I.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

A 4-h posttreatment with 4 microM beta-lapachone was previously shown to enhance the lethality of X-rays against human laryngeal epidermoid carcinoma (HEp-2) cells (D. A. Boothman et al., Cancer Res., 47:5361-5366, 1988). We now show that beta-lapachone (a) activates the DNA-unwinding activity of

Monoarylhydrazones of alpha-lapachone: synthesis, chemical properties and antineoplastic activity.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

The biological activities of the naphthoquinones lapachol, extracted from trees of the genus Tabebuia and its cyclization products alpha and beta-lapachone, have been intensively studied. Giving continuity to the research about new derivatives obtained from the reaction of these naphthoquinones with

Synthesis and potent antitumor activity of new arylamino derivatives of nor-beta-lapachone and nor-alpha-lapachone.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

Several arylamino derivatives of nor-beta-lapachone were synthesized in moderate to high yields and found to show very potent cytotoxicity against six neoplastic cancer cells: SF-295 (central nervous system), HCT-8 (colon), MDAMB-435 (breast), HL-60 (leukaemia), PC-3 (prostate), and B-16 (murine

Dehydro-alpha-lapachone, a plant product with antivascular activity.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

Antivascular agents have become a standard of treatment for many malignancies. However, most of them target the VEGF pathway and lead to refractoriness. To improve the diversity of options for antivascular therapy, we applied a high-throughput screen for small molecules targeting cell adhesion. We

Comparison of the cytotoxic effect of lapachol, alpha-lapachone and pentacyclic 1,4-naphthoquinones on human leukemic cells.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

The pentacyclic 1,4-naphthoquinones 1a-d were cytotoxic (IC(50) approximately 2-7 microM) to human leukemic cell lines K562 (oxidative stress-resistant), Lucena-1 (MDR phenotype) and Daudi. Fresh leukemic cells obtained from patients, some with the MDR phenotype, were also sensitive to these

Synthesis of new 9-hydroxy-α- and 7-hydroxy-β-pyran naphthoquinones and cytotoxicity against cancer cell lines.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

A synthetic method to obtain α- and β-pyran naphthoquinones 10 and 11 with a hydroxyl substituent on the aromatic ring was developed. Two series of α- and β-pyran naphthoquinones were obtained from the 8-hydroxy-lawsone, and their anticancer properties were evaluated against four tumor cell lines.

Novel mechanisms of DNA topoisomerase II inhibition by pyranonaphthoquinone derivatives-eleutherin, alpha lapachone, and beta lapachone.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

Pyranonaphthoquinones have diverse biological activities against Gram-positive bacteria, fungi, and mycoplasms, and, recently, there has also been an increasing interest in their anti-cancer activity. This study includes three derivatives: eleutherin (compound 1), beta lapachone (compound 2), and

β-Lapachone and its iodine derivatives cause cell cycle arrest at G2/M phase and reactive oxygen species-mediated apoptosis in human oral squamous cell carcinoma cells.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

β-Lapachone is a natural naphthoquinone originally obtained from the bark of the purple Ipe (Tabebuia avellanedae Lor, Bignoniaceae) and its therapeutic potential in human cancer cells has been evaluated in several studies. In this study, we examined the effects of β-lapachone and its 3-iodine

Cytotoxic constituents of the roots of Ekmanianthe longiflora.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

Bioactivity-directed fractionation of the CHCl(3) extract of the roots of Ekmanianthe longiflora resulted in the isolation of three new natural products, (2R,3R,4R)-3,4-dihydro-3, 4-dihydroxy-2-(3-methyl-2-butenyl)-1(2H)-naphthalenone (1), (2S,3R, 4R)-3,4-dihydro-3,

1,2,3-triazole-, arylamino- and thio-substituted 1,4-naphthoquinones: potent antitumor activity, electrochemical aspects, and bioisosteric replacement of C-ring-modified lapachones.

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

1,2,3-Triazole-, arylamino- and thio-substituted naphthoquinones (24, 8, and 2 representatives, respectively) were synthesized in moderate yields and evaluated against several human cancer cell lines (blood, ovarian, breast, central nervous system, colon, and prostate cancers and melanoma), showing,

Naphthoquinone derivatives and lignans from the Paraguayan crude drug "tayï pytá" (Tabebuia heptaphylla, Bignoniaceae).

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

The Paraguayan crude drug "tayï pytá" is used to treat cancer, wounds and inflammation. It consist of the bark and trunkwood of Tabebuia heptaphylla (Bignoniaceae). A phytochemical study of the crude drug gave, in addition to previously described naphthoquinones and the known lignans cycloolivil and

Lapachol and lapachone analogs: a journey of two decades of patent research(1997-2016).

Перакладаць артыкулы могуць толькі зарэгістраваныя карыстальнікі

Увайсці / Зарэгістравацца

BACKGROUND Lapachol (1), β-lapachone (2) and α-lapachone (3) are three well-studied natural products isolated from Tabebuia impetiginosa having most interesting chemodiversity and demonstrating diverse biological effects. Areas covered: The current review summarizes the recent and past discovery of

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