Potential anti-MDR agents based on the podophyllotoxin scaffold: synthesis and antiproliferative activity evaluation against chronic myeloid leukemia cells by activating MAPK signaling pathways
Synthesis and cytotoxicity of hydrophobic esters of podophyllotoxins
作者:J.L. López-Pérez、E. del Olmo、B. de Pascual-Teresa、A. Abad、A. San Feliciano
DOI:10.1016/j.bmcl.2003.12.039
日期:2004.3
Diverse norbornenecarboxylate esters of podophyllotoxin and its epimers and diastereoisomers have been prepared through Diels-Alder cycloaddition by treating the dienophilic acrylates of cyclolignans with cyclopentadiene. Their cytotoxicities against several cancer cell lines have been evaluated and the results compared with those found for other lignan esters. Podophyllotoxin adducts showed a one-fold increase in activity when compared to the natural product. The preparation of more hydrophobic esters, which showed less cytotoxicity, demonstrated that this activity is not primarily due to the lipophilic factor, but mainly to the spatial arrangement of the bulky moiety, which could contribute to increase the binding to the target site. (C) 2003 Elsevier Ltd. All rights reserved.
Potential anti-MDR agents based on the podophyllotoxin scaffold: synthesis and antiproliferative activity evaluation against chronic myeloid leukemia cells by activating MAPK signaling pathways
Compound 9k exhibited excellent cytotoxicity, induced apoptosis and G2/M cell cycle arrest, downregulated Pgp expression and up-regulated the expression of p-ERK1/2, p-JNK and p-p38 in K562/ADR cells.