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  • Title: Intercellular adhesion molecule-1 suppression in skin by topical delivery of anti-sense oligonucleotides.
    Author: Mehta RC, Stecker KK, Cooper SR, Templin MV, Tsai YJ, Condon TP, Bennett CF, Hardee GE.
    Journal: J Invest Dermatol; 2000 Nov; 115(5):805-12. PubMed ID: 11069617.
    Abstract:
    We topically applied 20 nucleotide phosphorothioate intercellular adhesion molecule-1 anti-sense oligodeoxynucleotide in a cream formulation. It effectively inhibited tumor necrosis factor-alpha-induced expression of intercellular adhesion molecule-1 in human skin transplanted on severe compromised immunodeficient mice. The effects were concentration dependent, sequence specific, and resulted from reduction of intercellular adhesion molecule-1 mRNA levels in the skin. Intravenous administration of the drug did not show pharmacologic effects, probably due to insufficient drug concentrations in skin. Topical delivery, however, produced a rapid and a significantly higher accumulation of oligodeoxynucleotide in the epidermis and dermis. The results strongly suggest that topically applied anti-sense oligonucleotides can be delivered to target sites in the skin and may be of considerable value in the treatment of psoriasis and other inflammatory skin disorders.
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