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tryptanthrin/cáncer de mama
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Tryptanthrin inhibits MDR1 and reverses doxorubicin resistance in breast cancer cells.
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Development of agents to overcome multidrug resistance (MDR) is important in cancer chemotherapy. Up to date, few chemicals have been reported to down-regulate MDR1 gene expression. We evaluated the effect of tryptanthrin on P-glycoprotein (P-gp)-mediated MDR in a breast cancer cell line MCF-7.
Tryptanthrin-loaded nanoparticles for delivery into cultured human breast cancer cells, MCF7: the effects of solid lipid/liquid lipid ratios in the inner core.
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Tryptanthrin is an ancient medicine which recently was also found to have a function of downregulating multidrug resistance (MDR). However, tryptanthrin is insoluble in water, which limits its availability for delivery into cancer cells. There is a need to improve delivery systems to increase the
Benzo[b]tryptanthrin inhibits MDR1, topoisomerase activity, and reverses adriamycin resistance in breast cancer cells.
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Tryptanthrin is an indoloquinazoline alkaloid isolated from indigo. Tryptanthrin and its benzo-annulated derivative, benzo[b]tryptanthrin, inhibit both topoisomerases I (topo I) and II (topo II) and cause cytotoxicity in several human cancer cell lines. From diverse assessment methods, including
A quantum chemical and chemometrical study of indolo[2,1-b]quinazoline and their analogues with cytotoxic activity against breast cancer cells.
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Some indolo[2,1-b]quinalozine (tryptanthrin) analogues present cytotoxic activity against human breast cancer cells. In this work, chemometric methods were applied in the search for building discriminant models between active and inactive analogues, based on the correlations among their in vitro
Targeting topoisomerase II with trypthantrin derivatives: Discovery of 7-((2-(dimethylamino)ethyl)amino)indolo[2,1-b]quinazoline-6,12-dione as an antiproliferative agent and to treat cancer
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Drugs targeting human topoisomerase II (topoII) are used in clinical practice since decades. Nevertheless, there is an urgent need for new and safer topoII inhibitors due to the emergence of secondary malignancies and the appearance of resistance mechanisms upon treatment with topoII-targeted
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