Deacetyltaxol
10-Deacetyltaxol and cephalomannine have cytotoxicity in human glial and neuroblastoma cell-lines, the tumors of the central and peripheral nervous system are sensitive to 10-deacetyltaxol and cephalomannine and these drugs are less toxic than taxol but remain within a therapeutic range.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to
24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
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The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Int. J.Oncol., 1993, 2(2):297-9.
Cephalomannine and 10-deacetyltaxol cytotoxicity in human glial and neuroblastoma cell-lines.[Pubmed:
21573554]
METHODS AND RESULTS:
The cytotoxic effects of taxol, 10-Deacetyltaxol, and cephalomannine at concentrations of 0.1 mug/ml to 10.0 mug/ml for one and 24 hours exposure were determined in two human glioblastoma multiforme and two neuroblastoma cell lines using the MTT method. The neuroblastoma cell lines were established from previously treated patients, while the glioblastomas were from untreated patients. There was a proportionate concentration-toxicity relationship for all four cell lines. The neuroblastoma SK-N-FI was consistently the most resistant to all three drugs. The order of potency after a one hour exposure was taxol, 10-Deacetyltaxol and cephalomannine. Cephalomannine contained 1.5% taxol impurity and 10-Deacetyltaxol, 4.5% taxol hence the contribution of taxol to these substances' toxic effects was minimal.
CONCLUSIONS:
We conclude that tumors of the central and peripheral nervous system are sensitive to 10-Deacetyltaxol and cephalomannine and these drugs are less toxic than taxol but remain within a therapeutic range.
