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| Product | Description | |
|---|---|---|
| Ethone FCC | Ethone FCC. CAS No. 104-27-8. FEMA No. 2673. Kosher: Y. VIGON Item # 500121. Categories: Speciality Ingrdients Suppliers, Flavors, Fragrances, Perfumers. |  America & Internationally |
| Ethonafide | Ethonafide is an anthracene-containing derivative of amonafide that belongs to the azonafide series of anticancer agents. The lack of cross-resistance in multidrug-resistant cancer cell lines and the absence of a quinone and hydroquinone moiety make ethonafide a potentially less cardiotoxic replacement for existing anthracene-containing anticancer agents. Ethonafide was cytotoxic against three human prostate cancer cell lines at nanomolar concentrations. Ethonafide was found to be better tolerated and more effective at inhibiting tumor growth compared with mitoxantrone in a human xenograft tumor regression mouse model. Mechanistically, we found that ethonafide inhibited topoisomerase II activity by stabilizing the enzyme-DNA complex, involving both topoisomerase IIalpha and -beta. In addition, ethonafide induced a potent G(2) cell cycle arrest in the DU 145 human prostate cancer cell line. By creating stable cell lines with decreased expression of topoisomerase IIalpha or -beta, we found that a decrease in topoisomerase IIalpha protein expression renders the cell line resistant to ethonafide. The decrease in sensitivity to ethonafide was associated with a decrease in DNA damage and an increase in DNA repair as measured by the neutral comet assay. These data demonstrate that ethonafide is a topoisomerase II poison and that it is topoisomerase IIalpha-specific in the DU 145 human prostate cancer cell line. Uses: Topoisomerase ii inhibitors. Synonyms: AMP-53; AMP 53; AMP53; 2-(2'-(Dimethylamino)ethyl)-1,2-dihydro-7-ethoxydibenz(de, H)isoquinoline-1,3-dione; 2-[2-(Dimethylamino)ethyl]-7-ethoxy-1H-dibenz[de,h]isoquinoline-1,3(2H)-dione. CAS No. 175293-23-9. Molecular formula: C22H22N2O3. Mole weight: 362.43. |  |
