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Oxime ether lipids containing hydroxylated head groups are more superior siRNA delivery agents than their nonhydroxylated counterparts.


ABSTRACT:

Aim

To evaluate the structure-activity relationship of oxime ether lipids (OELs) containing modifications in the hydrophobic domains (chain length, degree of unsaturation) and hydrophilic head groups (polar domain hydroxyl groups) toward complex formation with siRNA molecules and siRNA delivery efficiency of resulting complexes to a human breast cancer cell line (MDA-MB-231).

Materials & methods

Ability of lipoplex formation between oxime ether lipids with nucleic acids were examined using biophysical techniques. The potential of OELs to deliver nucleic acids and silence green fluorescent protein (GFP) gene was analyzed using MDA-MB-231 and MDA-MB-231/GFP cells, respectively.

Results & conclusion

Introduction of hydroxyl groups to the polar domain of the OELs and unsaturation into the hydrophobic domain favor higher transfection and gene silencing in a cell culture system.

SUBMITTER: Gupta K 

PROVIDER: S-EPMC4636123 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Publications

Oxime ether lipids containing hydroxylated head groups are more superior siRNA delivery agents than their nonhydroxylated counterparts.

Gupta Kshitij K   Mattingly Stephanie J SJ   Knipp Ralph J RJ   Afonin Kirill A KA   Viard Mathias M   Bergman Joseph T JT   Stepler Marissa M   Nantz Michael H MH   Puri Anu A   Shapiro Bruce A BA  

Nanomedicine (London, England) 20150624 18


<h4>Aim</h4>To evaluate the structure-activity relationship of oxime ether lipids (OELs) containing modifications in the hydrophobic domains (chain length, degree of unsaturation) and hydrophilic head groups (polar domain hydroxyl groups) toward complex formation with siRNA molecules and siRNA delivery efficiency of resulting complexes to a human breast cancer cell line (MDA-MB-231).<h4>Materials & methods</h4>Ability of lipoplex formation between oxime ether lipids with nucleic acids were exami  ...[more]

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