Synthesis and Biophysical Characterization of Chlorambucil Anticancer Ether Lipid Prodrugs
摘要:
The synthesis and biophysical characterization of four prodrug ether phospholipid conjugates are described. The lipids are prepared from the anticancer drug chlorambucil and have C16 and C18 ether chains with phosphatidylcholine or phosphatidylglycerol headgroups. All four prodrugs have the ability to form unilamellar liposomes (86-125 nm) and are hydrolyzed by phospholipase A(2), resulting in chlorambucil release. Liposomal formulations of prodrug lipids displayed cytotoxicity toward HT-29, MT-3, and ES-2 cancer cell lines in the presence of phospholipase A(2), with IC50 values in the 8-36 mu M range.
Synthesis and Biophysical Characterization of Chlorambucil Anticancer Ether Lipid Prodrugs
摘要:
The synthesis and biophysical characterization of four prodrug ether phospholipid conjugates are described. The lipids are prepared from the anticancer drug chlorambucil and have C16 and C18 ether chains with phosphatidylcholine or phosphatidylglycerol headgroups. All four prodrugs have the ability to form unilamellar liposomes (86-125 nm) and are hydrolyzed by phospholipase A(2), resulting in chlorambucil release. Liposomal formulations of prodrug lipids displayed cytotoxicity toward HT-29, MT-3, and ES-2 cancer cell lines in the presence of phospholipase A(2), with IC50 values in the 8-36 mu M range.
Prostaglandin phospholipid conjugates with unusual biophysical and cytotoxic properties
作者:Palle J. Pedersen、Sidsel K. Adolph、Thomas L. Andresen、Mogens W. Madsen、Robert Madsen、Mads H. Clausen
DOI:10.1016/j.bmcl.2010.06.054
日期:2010.8
The synthesis of two secretory phospholipase A(2) IIA sensitive 15-deoxy-Delta(12,14)-prostaglandin J(2) phospholipid conjugates is described and their biophysical and biological properties are reported. The conjugates spontaneously form particles in the liposome size region upon dispersion in an aqueous buffer and both phospholipids are hydrolyzed by phospholipase A(2), but with different conversion rates and extent of hydrolysis. The cytotoxicity was evaluated in HT-29 and Colo205 cells and the conjugates induced cell death in the presence of phospholipase A(2) and surprisingly also in the absence of the enzyme. (C) 2010 Elsevier Ltd. All rights reserved.
Liposomal Formulation of Retinoids Designed for Enzyme Triggered Release
作者:Palle J. Pedersen、Sidsel K. Adolph、Arun K. Subramanian、Ahmad Arouri、Thomas L. Andresen、Ole G. Mouritsen、Robert Madsen、Mogens W. Madsen、Günther H. Peters、Mads H. Clausen
DOI:10.1021/jm100190c
日期:2010.5.13
The design of retinoid phospholipid prodrugs is described based on molecular dynamics simulations and cytotoxicity studies of synthetic retinoid esters. The prodrugs are degradable by secretory phospholipase A(2) IIA and have potential in liposomal drug delivery targeting tumors. We have synthesized four different retinoid phospholipid prodrugs and shown that they form particles in the liposome size region with average diameters of 94-118 nm. Upon subjection to phospholipase A(2), the lipid prodrugs were hydrolyzed, releasing cytotoxic retinoids and lysolipids. The formulated lipid prodrugs displayed IC50 values in the range of 3-19 mu M toward HT-29 and Colo205 colon cancer cells in the presence of phospholipase A(2), while no significant cell death was observed in the absence of the enzyme.
Synthesis and Biophysical Characterization of Chlorambucil Anticancer Ether Lipid Prodrugs
作者:Palle J. Pedersen、Mikkel S. Christensen、Tristan Ruysschaert、Lars Linderoth、Thomas L. Andresen、Fredrik Melander、Ole G. Mouritsen、Robert Madsen、Mads H. Clausen
DOI:10.1021/jm900091h
日期:2009.5.28
The synthesis and biophysical characterization of four prodrug ether phospholipid conjugates are described. The lipids are prepared from the anticancer drug chlorambucil and have C16 and C18 ether chains with phosphatidylcholine or phosphatidylglycerol headgroups. All four prodrugs have the ability to form unilamellar liposomes (86-125 nm) and are hydrolyzed by phospholipase A(2), resulting in chlorambucil release. Liposomal formulations of prodrug lipids displayed cytotoxicity toward HT-29, MT-3, and ES-2 cancer cell lines in the presence of phospholipase A(2), with IC50 values in the 8-36 mu M range.