Docetaxel Trihydrate

Catalog No.S7787 Synonyms: RP56976 (NSC 628503) Trihydrate

Docetaxel Trihydrate Chemical Structure

Molecular Weight(MW): 861.93

Docetaxel, an analog of paclitaxel, is an inhibitor of depolymerisation of microtubules by binding to stabilized microtubules.

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  • (B) Viability of cells after exposure to 0, 10, or 10,000 nM docetaxel, assessed by calcein-AM staining (green, left panels) and ethidium homodimer-1 (red, middle panels). Right panels show merged images. Scale bars = 100 μm.

    Mol Pharm, 2014, 11(7):2040-50.. Docetaxel Trihydrate purchased from Selleck.

    Polymerized and soluble tubulin fractions from docetaxel untreated and treated FOXM1-siRNA and pcDNA3, 1-FOXM1 transfected cell lines were generated by centrifugation. Western blot was used to assay α-tubulin and β-tubulin ratios in polymerized and soluble fractions. (A) Relative percentages are shown above western blot.

    J Transl Med, 2013, 11:204.. Docetaxel Trihydrate purchased from Selleck.

  • Effect of siRNA-mediated knockdown for CDH1 in HCC4006ER cells. (A) Total cell lysates were harvested 72 hours after reverse-transfection of negative control siRNA (siNC) or validated siRNAs for CDH1 which encodes E-cadherin mixed with Lipofectamine RNAiMAX. (B-D) Tumor cells were reverse-transfected at the same time plating into 96-wells and then incubated for 24 hours. They were incubated with various concentrations of docetaxel, paclitaxel and vinorelbine for additional 72 hours. Percent growth relative to DMSO-treated controls was evaluated by Cell Counting Kit-8 assay.

    PLoS One,2015, 10(4):e0123901. Docetaxel Trihydrate purchased from Selleck.

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Biological Activity

Description Docetaxel, an analog of paclitaxel, is an inhibitor of depolymerisation of microtubules by binding to stabilized microtubules.
microtubules [1]
In vitro

Docetaxel is a cytotoxic agent, especially for proliferating cells, which is related to its ability to promote the formation of microtubule bundles and induce sustained mitotic arrest, followed by apoptosis of mitotically arrested cells or permanent mitotic block. Docetaxel suppresses microtubule dynamic instability as well as tread-milling, resulting in the failure of chromosomes to segregate to the daughter cells, which in turn triggers premature exit from mitosis rather than a block at this phase of the cell cycle. [2] Docetaxel inhibits the clonogenic survival of Human cancer cell Hs746T (stomach), AGS (stomach), HeLa (cervix), CaSki (cervix), BxPC3 (pancreas), Capan-1 (pancreas) with IC50 of 1 nM, 1 nM, 0.3 nM, 0.3 nM, 0.3 nM and 0.3 nM respectively. [4] Docetaxel inhibits endothelial cell migration that does not affects microtubule gross morphology or inhibit cell proliferation, although they does produce more subtle effects on microtubule dynamics. Docetaxel inhibits HUVEC migration with an observed IC50 of 1 pM. HUVEC chemotaxis stimulated by either of two angiogenic factors, thymidine phosphorylase or VEGF, is inhibited by Docetaxel with IC 50 of 10 pM and is ablated at 1 nM. [7] Docetaxel induces human monocytes, but not RAW 264.7 murine macrophages, Prostaglandin H Synthase-2m (PGHS-2) expression. [8]

In vivo Docetaxel (33 mg/kg/dose, given i.v. every 4 days for 3 injections) results in a tumor growth delay of 19.3 days in M2OL2 colon xenografts. Docetaxel also shows great antitumor activities in MX-1, SK-MEL-2, LX-1 and OVCAR-3 xenografts. Docetaxel inhibits the angiogenic response to fibroblast growth factor 2 with IC 50 of 5.4 mg/kg when injected twice weekly over a 14-day period, and angiogenesis is completely blocked in mice that receives 10 mg/kg Docetaxel. Docetaxel has selectivity for endothelial cell migration and/or microvessel formation because infiltration of inflammatory cells into the Matrigel plug is much less sensitive to inhibition by Docetaxel. [7]


Cell Research:[5]
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  • Cell lines: Human gastric cancer cell lines MKN-28
  • Concentrations: 6 nM
  • Incubation Time: 3 days
  • Method: 2000 cells in 180 μL of medium are seeded in a 96-well plate, and 20 μL of drug solution is simultaneously added in triplicate to each well. The plate is incubated for 3 days at 37°C in a humidified atmosphere of 5% CO2. On day 3, 25 μL of MTT reagent is added to each well. After 4 h of incubation, the medium is removed by aspiration. 0.2 mL of dimethylsulphoxide (DMSO) is added to each well and thoroughly mixed by using a mechanical plate mixer to dissolve the resulting MTT-formazan crystals. Absorbance at 540 nm (OD) is measured by a reader.
    (Only for Reference)
Animal Research:[6]
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  • Animal Models: Human colon carcinomas xenografts CX-1
  • Formulation: 50 mg/mL stock solution in ethanol by adding an equal volume of polysorbate 80 and diluting with 5% dextrose in water to the final volume
  • Dosages: 33 mg/kg
  • Administration: i.v. every 4 days for 3 injections
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 100 mg/mL (116.01 mM)
Ethanol 100 mg/mL (116.01 mM)
Water Insoluble

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 861.93


CAS No. 148408-66-6
Storage powder
in solvent
Synonyms RP56976 (NSC 628503) Trihydrate

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Clinical Trial Information

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT03449901 Recruiting Soft Tissue Sarcoma Washington University School of Medicine|Polaris Pharmaceuticals Inc. May 9 2018 Phase 2
NCT02485691 Recruiting Prostate Cancer Metastatic Sanofi November 9 2015 Phase 4
NCT01868022 Completed Neoplasms GlaxoSmithKline October 9 2013 Phase 1
NCT01905657 Active not recruiting Non Small Cell Lung Cancer (NSCLC) Merck Sharp & Dohme Corp. August 9 2013 Phase 2|Phase 3
NCT01695135 Completed Prostate Neoplasms Janssen Research & Development LLC August 9 2012 Phase 3
NCT03419234 Recruiting Castration Levels of Testosterone|Castration-Resistant Prostate Carcinoma|Metastatic Prostate Carcinoma in the Soft Tissue|Prostate Carcinoma Metastatic in the Bone|Stage IV Prostate Adenocarcinoma AJCC v7 ECOG-ACRIN Cancer Research Group|National Cancer Institute (NCI)|Eastern Cooperative Oncology Group February 8 2018 Phase 2

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID