1. Materials information
Names
Name | paclitaxel |
---|
Synonym | More Synonyms |
---|
Paclitaxel Biological Activity
Description | Paclitaxel is a potent anticancer medication which can promote microtubule (MT) assembly, inhibit MT depolymerization, and change MT dynamics required for mitosis and cell proliferation. |
---|
Related Catalog | Signaling Pathways >> Antibody-drug Conjugate >> ADC Cytotoxin Signaling Pathways >> Cell Cycle/DNA Damage >> Microtubule/Tubulin Signaling Pathways >> Cytoskeleton >> Microtubule/Tubulin Research Areas >> Cancer Natural Products >> Terpenoids and Glycosides |
---|
Target | IC50: 4 nM (MT) |
---|
In Vitro | Paclitaxel at 0.1, 0.5, and 1 μM reduces the proliferation and survival of CCRF-HSB-2 cells in a dose-dependent fashion and that the IC50 value of taxol is about 0.25 μM[1]. Paclitaxel directly associates with the endoplasmic reticulum to stimulate the release of calcium into the cytosol, contributing to the induction of apoptosis[2]. |
---|
In Vivo | In a SCID mouse xenograft model, low dose metronomic Paclitaxel treatment decreases lung dissemination of EGI-1 cells without significantly affecting their local tumor growth[3]. Low doses of paclitaxel promot liver metastasis in mouse xenografts, which correlats with changes in estrogen metabolism in the host liver[4]. Paclitaxel (2 mg/kg per treatment, black circles) induces mechanical hypersensitivity in the glabrous skin of the hindpaw[5]. |
---|
Kinase Assay | To determine which caspases are involved in apoptosis induced by taxol, caspase-3 inhibitor (DEVD-CHO), caspase-6 inhibitor (Z-VEID-FMK), caspase-8 inhibitor (Z-IETD-FMK or IETD-CHO), caspase-9 inhibitors (Z-LEHD-FMK or LEHD-CHO), and caspase-10 inhibitor (Z-AEVD-FMK) are used. These caspase inhibitors are dissolved in dimethyl sulfoxide (Me2SO); the final concentration of Me2SO is 0.1%. Cells (5×105) are preincubated in the presence or absence of 100 μM each of these inhibitors for 3 h at 37°C then treated with or without 0.1, 0.5, and 1 μM Paclitaxel for 48 h and processed for annexin V binding assay. |
---|
Cell Assay | 1×104 cells are plated in 100 μL of the growth medium in the presence or absence of increasing concentrations (0.1-1 μM) of taxol in 96-well plates and cultured at 37°C in 5% CO2 for 12-48 h. The cells are then incubated with 25 μL of MTT (5 mg/mL) at 37°C for 4 h. After dissolving the crystals with 0.04 N HCl in isopropanol, the plates are read in a microplate reader at 570 nm. The concentration of drug that inhibits cell survival by 50% (IC50) is determined from cell survival plots. |
---|
Animal Admin | Adult (250-320 g) male Sprague-Dawley rats are used for all experiments. Rats are housed two per cage in a temperature and humidity controlled, on a 12 h:12 h light:dark schedule with food and water available ad libitum. One week following the DiI injection, rats are anesthetized with isofluorane and injected into the tail vein with 2 mg/kg paclitaxel or its vehicle (1:1:23, cremophor EL:ethanol:0.9% saline). The tail vein injection is repeated three more times every other day for a total of four injections. |
---|
References | [1]. Park SJ, et al. Taxol induces caspase-10-dependent apoptosis. J Biol Chem. 2004 Dec 3;279(49):51057-67. Epub 2004 Sep 27. [2]. Pan Z, et al. Paclitaxel attenuates Bcl-2 resistance to apoptosis in breast cancer cells through an endoplasmic reticulum-mediated calciumrelease in a dosage dependent manner. Biochem Biophys Res Commun. 2013 Feb 13. pii: S0006-291X(13)00259-3. [3]. Cadamuro M, et al. Low dose paclitaxel reduces S100A4 nuclear import to inhibit invasion and hematogenous metastasis of cholangiocarcinoma. Cancer Res. 2016 Jun 21. [4]. Li Q, et al. Low doses of paclitaxel enhance liver metastasis of breast cancer cells in the mouse model. FEBS J. 2016 Jun 16. [5]. Yilmaz E, et al. Sensory neuron subpopulation-specific dysregulation of intracellular calcium in a rat model of chemotherapy-induced peripheral neuropathy. Neuroscience. 2015 Aug 6;300:210-8. [6]. Jing C, et al. Lenvatinib enhances the antitumor effects of paclitaxel in anaplastic thyroid cancer. Am J Cancer Res. 2017 Apr 1;7(4):903-912. |
---|
Chemical & Physical Properties
Density | 1.4±0.1 g/cm3 |
---|
Boiling Point | 957.1±65.0 °C at 760 mmHg |
---|
Melting Point | 213 °C (dec.)(lit.) |
---|
Molecular Formula | C47H51NO14 |
---|
Molecular Weight | 853.906 |
---|
Flash Point | 532.6±34.3 °C |
---|
Exact Mass | 853.330933 |
---|
PSA | 221.29000 |
---|
LogP | 7.38 |
---|
Vapour Pressure | 0.0±0.3 mmHg at 25°C |
---|
Index of Refraction | 1.637 |
---|
Storage condition | 2-8°C |
---|
Stability | Stable. Incompatible with strong oxidizing agents. Combustible. |
---|
Water Solubility | methanol: 50 mg/mL, clear, colorless |
---|
2. Packaging of materials
For powders: normal is 25kgs/Drum or bag, or larger/smaller package as request.
For liquids: normal 25kgs/drum, 180-300kgs/bucket, or IBC, determined by the nature of the product.
Or smaller package 1kg/bottle, 10kgs/bottle as request.
3. Shipping & Delivery
Provide door to door service
Suitable for goods under 50kg
Delivery: 3-7 days
Cost: low cost
Provide airport to airport service
Suitable for goods over 50kg
Delivery: 3-14 days
Cost: high cost
Provide seaport to seaport service
Suitable for goods over 100kg
Delivery: 2-45 days
Cost: low cost
4. Contact information
For more details, pls contact us freely.
Email address: Sun@fdachem.com
Mob: 86 13526505137
WhatsApp/Skype/Wechat/LINE: 86 13526505137