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Bleomycin에 의해 유도된 경화성 동물 모델에서 AP-1 Decoy ODN의 항섬유화 유전자 치료 효과

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Author(s)
송현정이규석
Keimyung Author(s)
Lee, Kyu Suk
Department
Dept. of Dermatology (피부과학)
Journal Title
대한피부과학회지
Issued Date
2008
Volume
46
Issue
1
Keyword
AP-1 decoy ODNBleomycinSclerotic animal modelType I collagen
Abstract
Background: Scleroderma is a connective tissue disorder characterized by excessive collagen production by activated fibroblasts. TGF-β plays key roles in fibrosis of dermsis. Although numerous studies have elucidated the pathogenesis
of scleroderma, effective therapeutic strategies for improving the sclerosis of the skin have been underinvestigated. Recently several studies indicated that an animal model of sclerotic skin induced by bleomycin is
useful for providing clues and therapeutic interventions for scleroderma. We previously reported that AP (Activator protein)-1 decoy ODN (oligodeoxynucleotides) suppresses the TGF-β1-induced type I collagen gene expression in
cultured scleroderma fibroblast in vitro studies. Therefore, it is necessary to confirm the anti-fibrotic effect of AP-1 decoy ODN in sclerotic animal model. Objective: The purpose of this study is the establishment of a mouse model for scleroderma and confirmation of the anti-fibrotic effect of AP-l decoy ODN in vivo study. Methods: Dermal sclerosis was induced by intradermal injection of bleomycin at a dose of 0.3, 1.5, 3 (mg/ml) into
the back skin of BALB/C mice twice a week for 4 weeks. To confirm anti-fibrotic effect of AP1-decoy ODN, the AP-1 decoy ODN was transfected into subcutaneous tissue of mice with or without bleomycin. Dermal sclerosis was
examined by hematoxylin and eosin (H&E) staining and Masson's trichrome staining. TGF-β1 expression was detected by immunohistochemistry and type I collagen gene expression was also analyzed by dot blotting and
western blot method. Results: Histopathological examination revealed that the dermal sclerosis with the deposition of thickened and homogenous collagen bundles increased according to the concentration of bleomycin. The expressions of type I collagen and TGF-β1 were markedly increased in bleomyin-injected mice. Furthermore transfection of AP-1 decoy ODN with bleomycin suppressed the dermal sclerosis and type I collagen gene expression as well as TGF-β1 in mice. Conclusion: AP-1 decoy ODN inhibits the bleomycin-induced dermal sclerosis through down-regulation of type I collagen and TGF-β1 expression in BALB/C mice. Thus the anti-fibrotic effect of AP-1 decoy ODN in
bleomycin-induced sclerotic mouse model suggests the fundamental data for gene therapy of scleroderma.
Alternative Title
Anti-fibrotic Gene Therapy Effect of AP-1 Decoy ODN
in Bleomycin-induced Sclerotic Animal Model
Keimyung Author(s)(Kor)
이규석
Publisher
School of Medicine
Citation
송현정 and 이규석. (2008). Bleomycin에 의해 유도된 경화성 동물 모델에서
AP-1 Decoy ODN의 항섬유화 유전자 치료 효과. 대한피부과학회지, 46(1), 55–62.
Type
Article
ISSN
0494-4739
Source
http://kiss.kstudy.com/thesis/thesis-view.asp?key=2673238
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/39769
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Dermatology (피부과학)
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