Novel metal complexes of naphthalimide–cyclam conjugates as potential multi-target receptor tyrosine kinase (RTK) inhibitors: Synthesis and biological evaluation
摘要:
A novel series of metal complexes of naphthalimide-cyclam conjugates were synthesized and their in vitro antitumor activities were evaluated. The newly-synthesized compounds showed huge diversity of antiproliferative potency due to variety of metal ions and length of alkyl chains, among which the Zn(II) and Cr(III) complexes exhibited comparable antiproliferative activities with amonafide via multiple tyrosine kinase inhibition. Further research revealed that the representative compound 8a displayed broad-spectrum antiproliferative activity against 15 cancer cell lines with average IC50 value 10.18 +/- 3.25 mu M, and effective antiangiogenic activity on human microvascular endothelial cells (HMEC-1). In brief, metal complexes of naphthalimide-cyclam conjugates were firstly designed and synthesized as multi-target tyrosine kinase inhibitors and proved of their antitumor capacities. (C) 2014 Elsevier Masson SAS. All rights reserved.
Antiproliferative and apoptosis-inducing activities of novel naphthalimide–cyclam conjugates through dual topoisomerase (topo) I/II inhibition
摘要:
A novel series of naphthalimide-cyclam conjugates were designed and synthesized. Among them, compounds 4c, 4d, 8c and 8d which bearing long lipophilic alkyl chains, displayed comparable or more potent cytotoxic activities against human tumor cell lines than amonafide. Furthermore, the four compounds were proved to possess strong inhibition against both topoisomerase I and II. The representative compound 8c exhibited moderate DNA intercalation activity. Molecular modeling studies identified the possible interaction of compound 8c with the molecular target by forming topoisomerase/DNA/drug ternary complex. Finally, derivatives with long lipophilic alkyl chains could efficiently induce apoptosis. (C) 2015 Published by Elsevier Ltd.
A novel series of naphthalimide-cyclam conjugates were designed and synthesized. Among them, compounds 4c, 4d, 8c and 8d which bearing long lipophilic alkyl chains, displayed comparable or more potent cytotoxic activities against human tumor cell lines than amonafide. Furthermore, the four compounds were proved to possess strong inhibition against both topoisomerase I and II. The representative compound 8c exhibited moderate DNA intercalation activity. Molecular modeling studies identified the possible interaction of compound 8c with the molecular target by forming topoisomerase/DNA/drug ternary complex. Finally, derivatives with long lipophilic alkyl chains could efficiently induce apoptosis. (C) 2015 Published by Elsevier Ltd.
Novel metal complexes of naphthalimide–cyclam conjugates as potential multi-target receptor tyrosine kinase (RTK) inhibitors: Synthesis and biological evaluation
A novel series of metal complexes of naphthalimide-cyclam conjugates were synthesized and their in vitro antitumor activities were evaluated. The newly-synthesized compounds showed huge diversity of antiproliferative potency due to variety of metal ions and length of alkyl chains, among which the Zn(II) and Cr(III) complexes exhibited comparable antiproliferative activities with amonafide via multiple tyrosine kinase inhibition. Further research revealed that the representative compound 8a displayed broad-spectrum antiproliferative activity against 15 cancer cell lines with average IC50 value 10.18 +/- 3.25 mu M, and effective antiangiogenic activity on human microvascular endothelial cells (HMEC-1). In brief, metal complexes of naphthalimide-cyclam conjugates were firstly designed and synthesized as multi-target tyrosine kinase inhibitors and proved of their antitumor capacities. (C) 2014 Elsevier Masson SAS. All rights reserved.