baccatin/cáncer de mama

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Apoptotic cell death induced by baccatin III, a precursor of paclitaxel, may occur without G(2)/M arrest.

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OBJECTIVE Paclitaxel has been demonstrated to possess significant cell-killing activity in a variety of tumor cells by induction of apoptosis, but the mechanism by which paclitaxel leads to cell death and its relationship with mitotic arrest is not entirely clear. In this study, baccatin III, a

Isolation of Taxol-Producing Endophytic Fungi from Iranian Yew Through Novel Molecular Approach and Their Effects on Human Breast Cancer Cell Line.

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Taxol or paclitaxel, an approved drug by the Food and Drug Administration, is being used for the treatment of human cancers. This study aimed to isolate and determine different species of native endophytic fungi from Iranian Taxus baccata (yew) plants located in the northern forests of Iran. To do

Synthesis and biological evaluation of 2'-methyl taxoids derived from baccatin III and 14beta-OH-baccatin III 1,14-carbonate.

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A series of 2'-methyl taxoids were synthesized and essayed for growth inhibition experiments conducted in human ovarian cancer cell line A2780wt and its counterparts A2780cis, A2780tax, and A2780adr, resistant to cisplatin, paclitaxel, and doxorubicin, respectively, to test the effect of this

Design and synthesis of de novo cytotoxic alkaloids through mimicking taxoid skeleton.

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Based on a common pharmacophore model and the hypothesis that the baccatin core of taxoids is a scaffold securing the proper orientation of the side chains, a bicyclic alkaloid scaffold was designed as a baccatin surrogate. Using this scaffold, two novel macrocyclic and open-chain 'taxoid-mimicking'

Production, purification and characterization of taxol and 10DAB III from a new endophytic fungus Gliocladium sp. isolated from the Indian yew tree, Taxus baccata.

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We have isolated endophytic fungi from Indian yew tree, Taxus baccata and then screened for taxol production. Out of the forty fungal cultures screened, one fungus Gliocladium sp. was found to produce taxol and 10DAB III (10 Deacetyl baccatin III). These compounds were purified by TLC, HPLC and

Pharmacognostic studies on Taxus baccata L.: A brilliant source of Anti-cancer agents.

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The present investigation was undertaken to establish standardization profile of Taxus baccata L. with the help of pharmacognostic parameters, which is not done before. T. baccata(Taxaceae), is native to Europe, is an evergreen needle-leaved tree, growing up to 28 m high. A large number of

Absolute Configuration Determination of a Taxol Precursor Based on Raman Optical Activity Spectra.

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Enantiomeric purity of drugs is essential for their biological activity. In the present study, we investigate the performance of Raman optical activity (ROA) spectroscopy in distinguishing four possible stereoisomers of the synthetic precursor used for the production of taxol from baccatin III.

A validated high performance liquid chromatograph-photodiode array method for simultaneous determination of 10 bioactive components in compound hongdoushan capsule.

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BACKGROUND The compound Hongdoushan capsule (CHC) is widely known as compound herbal preparation and is often used to treat ovarian cancer and breast cancer, and to enhance the body immunity, etc., in clinical practice. OBJECTIVE To determine simultaneously 10 bioactive components from CHC, namely

Tour de paclitaxel: biocatalysis for semisynthesis.

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In collaboration with the National Cancer Institute, Bristol-Myers Squibb has developed paclitaxel for treatment of various cancers; it has been approved by the Food and Drug Administration for the treatment of ovarian and metastatic breast cancer. Originally paclitaxel was isolated and purified

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