사독(蛇毒)이 난소암세포에 있어서 NF-${\kappa}B$와 STAT3의 활성억제와 관련된 세포자멸사유도를 통한 암세포 성장에 미치는 영향

Effect of Snake Venom on Cancer Growth through Induction of Apoptosis via Down Regulation of NF-${\kappa}B$ and STAT3 in the PA-1, Ovarian Cancer Cells

  • 이병춘 (경원대학교 한의과대학 침구학교실) ;
  • 송호섭 (경원대학교 한의과대학 침구학교실)
  • Lee, Byung-Choon (Dept. of Acupuncture & Moxibustion, College of Oriental Medicine, Kyungwon University) ;
  • Song, Ho-Sueb (Dept. of Acupuncture & Moxibustion, College of Oriental Medicine, Kyungwon University)
  • 투고 : 2012.01.17
  • 심사 : 2012.01.27
  • 발행 : 2012.02.20

초록

목적 : 최근 NF-${\kappa}B$와 STAT3의 활성억제와 관련된 항암제 연구가 주목받고 있으며, 본 연구는 사독(蛇毒)이 세포자멸사 관련 단백질의 발현 조절을 통하여 세포자멸사를 유도하고, NF-${\kappa}B$와 STAT3의 활성억제를 유도하여 난소암 PA-1 세포의 성장을 억제하는지를 확인하고, 해당 기전을 살펴보고자 하였다. 방법 : 사독을 처리한 후 난소암 PA-1 세포의 세포자멸사의 관찰에는 DAPI, TUNEL staining assay를 시행하였고, 세포자멸사 조절단백질 및 NF-${\kappa}B$, STAT3의 활성 변동 관찰에는 western blot analysis를 시행하였다. 결과 : 1. 사독을 처리한 후 난소암 PA-1 세포에서 세포자멸사가 유도되어 암세포성장이 억제되었다. 2. 사독을 처리한 후 세포자멸사 관련 단백질 중 세포자멸사 촉진 단백질인 cleaved caspase-3, Bax의 발현은 증가되었고, 세포자멸사 억제 단백질인 Bcl-2의 발현은 감소되었다. 3. 사독을 처리한 후 난소암 PA-1 세포의 NF-${\kappa}B$와 STAT3 발현은 감소되었고, 각각의 길항제인 salicylic acid와 stattic 처리 후 NF-${\kappa}B$와 STAT3 발현은 더욱 감소되었다. 결론 : 사독은 난소암 세포의 세포자멸사 유발과, NF-${\kappa}B$와 STAT3의 활성억제를 통해 치료 효율이 높고, 내성이 적은 난소암 치료제의 개발에 도움이 될 것으로 기대된다.

키워드

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