Effect of Epidermal Growth Factor on Cell Survival of Human Ovarian Teratocarcinoma Cell Line

Epidermal Growth Factor가 난소 기형암종 배아세포주의 생존율에 미치는 효과

  • Kim, Chung-hui (College of Veterinary Medicine, Gyeongsang National University, Institute of Animal Medicine) ;
  • Kim, Jong-shu (College of Veterinary Medicine, Gyeongsang National University, Institute of Animal Medicine) ;
  • Cuong, Dang Van (Department of Physiology & Biophysics, College of Medicine, Inje University) ;
  • Kim, Na-ri (Department of Physiology & Biophysics, College of Medicine, Inje University) ;
  • Kim, Eui-yong (Department of Physiology & Biophysics, College of Medicine, Inje University) ;
  • Han, Jin (Department of Physiology & Biophysics, College of Medicine, Inje University)
  • 김충희 (경상대학교 수의과대학 동물의학연구소) ;
  • 김종수 (경상대학교 수의과대학 동물의학연구소) ;
  • ;
  • 김나리 (인제대학교 의과대학 생리학교실) ;
  • 김의용 (인제대학교 의과대학 생리학교실) ;
  • 한진 (인제대학교 의과대학 생리학교실)
  • Accepted : 2003.03.25
  • Published : 2003.06.30


Human ovarian cancerous cells survive in a way that they trigger the nucleotide excision repair (NER) or double-strand DNA repair (dsDNA) repair mechanism to show resistance to anticancer drugs and activate many kinds of repair protein, thus removing damaged DNAs. Two experiments on the PA-1 human ovarian teratocareinoma cell line that hardly has any expression of epidermal growth factor receptor (EGFR) were conducted in the study; first, EGF-R was transfected and its receptor was obtained. The receptor was investigated in terms of its mutual relations with many kinds of protein concerning NER or dsDNA repair. Second, it was examined what kind impact cisplatin and adriamycin had on the effects of EGF-R over the PA-1 cell line lacking EGF-R. When being administered with cisplatin and adriamycin, Hey and Hey C2 cell lines showed a high level of resistance while PA-1 cell line a high level of sensitivity. Hey and Hey C2 cell lines that are resistant against anticancer drugs exhibited a high level of EGF-R expression while PA-1 cell line that is sensitive to them did a much lower level of the expression. When PA-1 cell line was transfected for the expression of DNA adduct and EGF-R, it showed a higher level of resistance compared to the control group. There was no difference in the expression of DNA repair proteins (DNA- dependent protein kinase, Ku70, and Ku80) between Hey and the PA-1 cell lines. The results indicate that the Hey cell line that is resistant against cisplatin and adriamycin works along the signaling system responding to the changes of EGF-R while the PA-1 cell line that is sensitive to both of them does to the lack of EGF-R.


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