10 deacetylbaccatin iii/neoplasms

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Pharmacokinetics and metabolism in mice of IDN 5390 (13-(N-Boc-3-i-butylisoserinoyl)-C-7,8-seco-10-deacetylbaccatin III), a new oral c-seco-taxane derivative with antiangiogenic property effective on paclitaxel-resistant tumors.

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IDN 5390 (13-(N-Boc-3-i-butylisoserinoyl)-C-7,8-seco-10-deacetylbaccatin III) is a new taxane, derived from 7,8-C-seco-10-deacetylbaccatin, selected for its ability to inhibit angiogenesis, mainly by acting on endothelial cell motility, and for its selective activity on class III beta-tubulin. In

The Combination Process for Preparative Separation and Purification of Paclitaxel and 10-Deacetylbaccatin III Using Diaion® Hp-20 Followed by Hydrophilic Interaction Based Solid Phase Extraction.

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There is no other naturally occurring defense agent against cancer that has a stronger effect than paclitaxel, commonly known under the brand name of Taxol®. The major drawback for the more widespread use of paclitaxel and its precious precursor, 10-deacetylbaccatin III (10-DAB III), is that they

New taxanes as highly efficient reversal agents for multidrug resistance in cancer cells.

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New non-cytotoxic taxanes synthesized from 10-deacetylbaccatin III and special hydrophobic acylating agents show remarkable MDR reversal activity (< or = 99.8%) against drug-resistant human breast cancer cells when co-administered with paclitaxel or doxorubicin. This activity is ascribed to the

[Quantitative changes of anti-cancer active components in Taxus chinensis var. mairei branches and leaves].

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The quantitative changes of anti-cancer ingredients such as taxol, cephalomannine, baccatin III and 10-deacetylbaccatin III in the branches and leaves of Taxus chinensis var. mairei during one growth season were measured by HPLC. The results showed that the contents of these anticancer ingredients

Antitumor efficacy of taxane liposomes on a human ovarian tumor xenograft in nude athymic mice.

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Taxanes such as paclitaxel (Taxol) and docetaxel (Taxotere) are promising agents for use against ovarian cancer and other malignancies. Recently, SB-T-1011, a semisynthetic taxane, has been prepared from 14-hydroxy-10-deacetylbaccatin III. SB-T-1011 shows similar or greater in vitro cytostatic

A novel taxane with improved tolerability and therapeutic activity in a panel of human tumor xenografts.

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Clinically available taxanes represent one of the most promising class of antitumor agents, despite several problems with their solubility and toxicity. In an attempt to improve the pharmacological profile of taxanes, a new series of analogues was synthesized from 14beta-hydroxy-10-deacetylbaccatin

Bioproduction of baccatin III, an advanced precursor of paclitaxol, with transgenic Flammulina velutipes expressing the 10-deacetylbaccatin III-10-O-acetyl transferase gene.

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BACKGROUND 10-Deacetylbaccatin III (10-DAB) and baccatin III are intermediates in the biosynthesis of Taxol (an anti-cancer drug) and useful precursors for semi-synthesis of the drug. In this study, a bioconversion system was established for the production of baccatin III, an advanced precursor of

Syntheses and structure-activity relationships of the second-generation antitumor taxoids: exceptional activity against drug-resistant cancer cells.

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A series of new 3'-(2-methyl-1-propenyl) and 3'-(2-methylpropyl) taxoids with modifications at C-10 was synthesized by means of the beta-lactam synthon method using 10-modified 7-(triethylsilyl)-10-deacetylbaccatin III derivatives. The new taxoids thus synthesized show excellent cytotoxicity against

Cloning and sequence analysis of 10-deacetylbaccatin III-10-O-acetyl transferase gene and WRKY1 transcription factor from taxol-producing endophytic fungus Lasiodiplodia theobromea.

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In this study, we have isolated an endophytic fungal strain Lasiodiplodia theobromae from non-Taxus host plant Piper nigrum. The strain L. theobromae identity was confirmed by morphological characteristics and internal transcribed spacer sequence analysis. Taxol produced by L. theobromae was

Taxanes from Shells and Leaves of Corylus avellana.

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Paclitaxel is an effective antineoplastic agent originally extracted in low yield from the bark of Taxus brevifolia. Although it was generally considered a particular metabolite of Taxus sp., paclitaxel was recently found in hazel cell cultures. The aim of the present work was to verify whether

In vitro cell cultures obtained from different explants of Corylus avellana produce Taxol and taxanes.

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BACKGROUND Taxol is an effective antineoplastic agent, originally extracted from the bark of Taxus brevifolia with a low yield. Many attempts have been made to produce Taxol by chemical synthesis, semi-synthesis and plant tissue cultures. However, to date, the availability of this compound is not

New taxane diterpenoids from the leaves and twigs of Taxus sumatrana.

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Two new taxoids, taxumairol Q (1) and 13-O-acetyl wallifoliol (2), have been isolated from the leaves and twigs of Taxus sumatrana. Taxuspine F and wallifoliol (10) have been isolated for the first time from the yew T. sumatrana. Seventeen known taxoid diterpenoids have also been isolated. The new

Bio-production of Baccatin III, an Important Precursor of Paclitaxel by a Cost-Effective Approach.

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Natural production of anti-cancer drug taxol from Taxus has proved to be environmentally unsustainable and economically unfeasible. Currently, bioengineering the biosynthetic pathway of taxol is an attractive alternative production approach. 10-deacetylbaccatin III-10-O-acetyl transferase (DBAT) was

Second generation taxanes: from the natural framework to the challenge of drug resistance.

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Taxanes represent the most important class of antitumor agents introduced in cancer therapy in the last decade. The first member of the family was paclitaxel, firstly isolated from Taxus Brevifolia and found active as antitumor agent at the end of 60's. In the mid of 90's, a semi-synthetic taxane

Medicinal chemistry of paclitaxel and its analogues.

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Paclitaxel belongs to the most successful anticancer drugs developed and utilised during the past two decades. Nevertheless, the development of resistance of tumor cells and severe side effects in the patients require further improvement of the drug. In this review, we provide a detailed overview of

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