Liposomal formulation of retinoids designed for enzyme triggered release

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

64 Citationer (Scopus)

Abstract

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 A2 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 A2, the lipid prodrugs were hydrolyzed, releasing cytotoxic retinoids and lysolipids. The formulated lipid prodrugs displayed IC50 values in the range of 3-19 μM 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.

OriginalsprogEngelsk
TidsskriftJournal of Medicinal Chemistry
Vol/bind53
Udgave nummer9
Sider (fra-til)3782-3792
Antal sider11
ISSN0022-2623
DOI
StatusUdgivet - 13 maj 2010

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