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The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Cell Cycle Arrest of Extract from Artemisia annua Linné. Via Akt-mTOR Signaling Pathway in HCT116 Colon Cancer Cells

HCT116 대장암세포에서 Akt-mTOR 신호경로를 통한 개똥쑥 추출물 (AAE)의 세포주기 억제 효과

  • Kim, Bo Min (Department of Biological sciences and Biotechnology, College of Life Science and Nano Technology, Hannam University) ;
  • Kim, Guen Tae (Department of Biological sciences and Biotechnology, College of Life Science and Nano Technology, Hannam University) ;
  • Lim, Eun Gyeong (Department of Biological sciences and Biotechnology, College of Life Science and Nano Technology, Hannam University) ;
  • Kim, Eun Ji (Department of Biological sciences and Biotechnology, College of Life Science and Nano Technology, Hannam University) ;
  • Kim, Sang Yong (Department of BIONGENE) ;
  • Ha, Sung Ho (Department of Chemical Engineering, College of Life Science and Nano Technology, Hannam University) ;
  • Kim, Young Min (Department of Biological sciences and Biotechnology, College of Life Science and Nano Technology, Hannam University)
  • 김보민 (한남대학교 생명나노과학대학 생명시스템과학과) ;
  • 김근태 (한남대학교 생명나노과학대학 생명시스템과학과) ;
  • 임은경 (한남대학교 생명나노과학대학 생명시스템과학과) ;
  • 김은지 (한남대학교 생명나노과학대학 생명시스템과학과) ;
  • 김상용 ((주)바이오엔진) ;
  • 하성호 (한남대학교 생명나노과학대학 화학공학과) ;
  • 김영민 (한남대학교 생명나노과학대학 생명시스템과학과)
  • Received : 2015.06.22
  • Accepted : 2015.08.27
  • Published : 2015.10.27
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Abstract

In this study, extract from Artemisia annua in L. (AAE) is known as a medicinal herb that is effective against cancer. The cell cycle is regulated by the activation of cyclin-dependent kinase (CDK)/cyclin complex. We will focus on regulation of CDK2 by cyclin E. cyclin E is associated with CDK2 to regulate progression from G1 into S phase. Akt is known to play an important role in cell proliferation and cell survival. Activation of Akt increases mTOR activity that promotes cell proliferation and cancer growth. In this study, we investigated that AAE-induced cell cycle arrest at G1/S phase in HCT116 colon cancer. Treatment of AAE shows that reduced activation of Akt decreases mTOR/Mdm2 activity and then leads to increase the activation of p53. The active p53 promotes activation of p21. p21 induces inactivation of CDK2/cyclin E complex and occurs cell cycle arrest at G1/S phase. We treated LY294002 (Akt inhibitor) and Rapamycin (mTOR inhibitor) to know the relationship between the signal transduction of proteins associated with cell cycle arrest. These results suggest that AAE induces cell cycle arrest at G1/S phase by Akt/mTOR pathway in HCT116 colon cancer cell.

Keywords

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