반흔형성 과정에서 Sp1 전사인자 조절에 의한 TGF-β1 및 CTGF의 발현

The Effect of the Transcriptional Regulation of Sp1 for TGF-β1 and CTGF Expression in Scar Formation

  • 박동만 (계명대학교 의학과 성형외과학교실) ;
  • 손대구 (계명대학교 의학과 성형외과학교실) ;
  • 한기환 (계명대학교 의학과 성형외과학교실) ;
  • 이선영 (경북대학교 의과대학 의학연구소) ;
  • 채영미 (대구가톨릭대학교 의과대학 병리학교실) ;
  • 장영채 (대구가톨릭대학교 의과대학 병리학교실) ;
  • 박관규 (대구가톨릭대학교 의과대학 병리학교실)
  • Park, Dong Man (Department of Plastic and Reconstructive Surgery, Keimyung University School of Medicine) ;
  • Sohn, Dae Gu (Department of Plastic and Reconstructive Surgery, Keimyung University School of Medicine) ;
  • Han, Ki Hwan (Department of Plastic and Reconstructive Surgery, Keimyung University School of Medicine) ;
  • Lee, Sun Young (Department of Medical Research Institute, Kyungpook National University) ;
  • Chae, Young Mi (Department of Pathology, College of Medicine, Catholic University of Daegu) ;
  • Chang, Young Chae (Department of Pathology, College of Medicine, Catholic University of Daegu) ;
  • Park, Kwan Kyu (Department of Pathology, College of Medicine, Catholic University of Daegu)
  • 투고 : 2005.08.31
  • 발행 : 2006.01.10

초록

This study is to examine the relationship between TGF-b1 expression and CTGF expression, and to evaluate the effect of Sp1 blockade on the expression of TGF-b1, CTGF and extracellular genes, clones of fibroblasts stably transfected with Sp1 decoy ODN. R-Sp1 decoy ODN was highly resistant to degradation by nucleases or serum, compared to the linear or phosphorothioated-Sp1 decoy ODN. Skin wounds were created on the back of 36 anesthetized rats. They were divided into four groups-the rats with normal skin, with wounded skin without decoy, with wounded skin injected with R-Sp1 decoy, and with wounded skin injected with mismatched R-Sp1 decoy, respectively. Skins were collected at 3rd, 5th, 7th, 14th day after wounding. Cellular RNA was extracted by RT-PCR analysis. TGF-${\beta}1$ and CTGF were deeply related with skin fibrosis during scar formation and it appeared that TGF-${\beta}1$ may cause the induction of CTGF expression. R-Sp1 decoy ODN inhibited TGF-${\beta}1$ and CTGF expression both in cultured fibroblasts and in the skin of rats. These results indicate that targeting Sp1 with R-type decoy efficiently blocks extracellular matrix gene expression, and suggest an important new therapeutic approach to control the scarring in normal wound healing and fibrotic disorders.

키워드

참고문헌

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