Cytarabine
CAS No. | 147-94-4 | Cat. No. | BCP02876 |
Name | Cytarabine | ||
Synonyms | Ara-C;Cytosine Arabinoside;Cytosar-U; | ||
Formula | C10H14N2O5 | M. Wt | 242.23 |
Description | Cytarabine (AraC) is phosphorylated into a triphosphate form (Ara-CTP) involving deoxycytidine kinase (dCK), which competes with dCTP for incorporation into DNA, and then blocks DNA synthesis by inhibiting the function of DNA and RNA polymerases. Cytarabine displays a higher growth inhibitory activity towards wild-type CCRF-CEM cells compared to other acute myelogenous leukemia (AML) cells with IC50 of 16 nM. Increasing concentrations of Cytarabine (IC50 of 0.69 μM) results in decreased metabolic activity of sensitive rat leukemic cell line RO/1, and the cell toxity can be highly enhanced by transfection with human wt dCK (IC50 of 0.037 μM) but not the inactive, alternatively spliced dCK forms. Cytarabine apparently induces apoptosis of rat sympathetic neurons at 10 μM, of which 100 μM shows the highest toxicity and kills over 80% of the neurons by 84 hours, involving the release of mitochondrial cytochrome-c and the activation of caspase-3, and the toxicity can be attenuated by p53 kn | ||
Pathways | Cell Cycle/DNA Damage | ||
Targets | Antimetabolite |
Structure
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