Modification of a Phosphorothioate Oligonucleotide with Cholesterol Induces Association of the Oligonucleotide to Serum Lipoproteins and Affects Its Biological Fate

Abstract
A cholesterol-conjugated phosphorothioate ICAM-1 antisense oligo-nucleotide was evaluated for its binding to lipoproteins and its biodistribution. Our study indicates that the conjugate behaves differently from the parent compound.