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논문 기본 정보

자료유형
학술저널
저자정보
Lee, Young-Mi (College of Pharmacy, and Medicinal Resource Research Center, Wonkwang University) Song, Kyung (College of Pharmacy, and Medicinal Resource Research Center, Wonkwang University) Lee, Sung-Hee (College of Pharmacy, and Medicinal Resource Research Center, Wonkwang University) Ko, Geon-Il (College of Pharmacy, and Medicinal Resource Research Center, Wonkwang University) Kim, Jae-Baek (College of Pharmacy, and Medicinal Resource Research Center, Wonkwang University) Sohn, Dong-Hwan (College of Pharmacy, and Medicinal Resource Research Center, Wonkwang University)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제19권 제2호
발행연도
1996.1
수록면
116 - 121 (6page)

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Antisense oligonucleotides seem to provide a promising new tool for the therapy. Choi et al. (1995) reported antisense phosphorothioate oligonucleotides (PS-ODN, 25 mer) complementary to TGF-.betha. mRNA designed for scar formation inhibitor to eliminate scars, which was caused by undesired collagen deposition due to overexpression of TGF-.betha., in wounded skin. PS-ODN were evaluated in vitro for skin penetration using normal and tape-stripped damaged rat skin. The in vitro skin transports were carried out with partially modified PS-ODN (6S) and fully modified PS-ODN (25S). The cumulative amount of PS-ODN (6S) penetrated through normal rat skin was $0.234{\pm}0.041{\mu}g/cm^2$ and that of tape-stripped damaged rat skin was $1.077{\pm}0.301{\mu}g/cm^2$ over 8 hrs. PS-ODN (25S) can not be found in receptor medium through normal skin due to high molecular weight (Mol.Wt.=8,000) and polyanionic charge. However, the cumulative amount of PS-ODN (25S) penetrated across damaged rat skin in PBS was $0.340{\pm}0.296{\mu}g/cm^2$ over 8 hrs. The absense of dermis raised the cumulative amount of PS-ODN (6S) penetrated through rat skin. And the fluxes of PS-ODN (6S) and PSODN (25S) at 8hrs across damaged rat skin were $134.63{\pm}37.67{\mu}g/cm^2$ h, and $42.50{\pm}36.95ng/cm^2$ h, respectively. While PS-ODN (25S) was stable in 10% heat inactivated fetal bovine serum (FBS) during 24 hrs, PS-ODN (6S) was less stable than PS-ODN (25S), but was markedly stable than unmodified phosphodiester. It is suggested that the cumulative amount of PS-ODN (6S) penetrated through damaged rat skin is larger than that of PS-ODN (25S) since the former is easier to degrade by nuclease than the latter and then is apt to penetrate into skin. Thus, PS-ODN represents a logical candidate for further evaluation due to the potential for delivery into the wounded skin.

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