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Rutin Suppresses Neoplastic Cell Transformation by Inhibiting ERK and JNK Signaling Pathways

Rutin의 ERK 및 JNK 신호전달체계 억제를 통한 암예방 효능

  • Kang, Nam Joo (School of Food Science and Biotechnology, Kyungpook National University)
  • Received : 2015.07.27
  • Accepted : 2015.08.11
  • Published : 2015.08.31

Abstract

Rutin is a well-known flavonoid found in buckwheat. Recent studies have demonstrated that the biological actions of rutin include anti-inflammatory and anti-cancer effects, but the underlying molecular mechanisms of these actions are not yet fully understood. Neoplastic cell transformation is considered a major event that contributes to carcinogenesis, and the present study aimed to determine whether rutin would exert anti-tumor effects via the results suggest that rutin exerted a potent inhibitory influence on the molecular activity of the MEK/ERK and MKK4/JNK pathways and strongly attenuated EGF-induced neoplastic cell transformation. These findings provide insight into the biological actions of rutin and the molecular basis for the development of new chemoprotective agents.

Rutin은 메밀에 함유되어 있는 것으로 잘 알려져 있는 flavonoid 물질로서, 최근 연구들에서 rutin의 항염증 및 암예방 활성이 보고되어져 왔다. 그러나, rutin의 암예방 활성과 관련된 분자생물학적 기전에 대한 연구는 아직까지 미비한 실정이다. 따라서, 본 연구에서는 발암 과정 중 하나인 세포의 악성 변형을 EGF로 유도하여 rutin이 이를 억제하는지 여부를 확인하는 실험을 진행하였으며, 그 분자생물학적 기전을 규명하고자 하였다. Soft agar assay 실험 결과, rutin은 EGF로 유도된 세포의 악성 변형을 $25{\mu}M$, $50{\mu}M$, $100{\mu}M$에서 농도별로 감소시켰다. 또한 EGF로 유도된 MEK/ERK 및 MKK4/JNK 신호전달체계의 인산화를 저해하였다. 그러나 이와는 대조적으로 rutin은 EGF로 유도된 MKK3/6/p38 신호전달체계 인산화는 감소시키지 못하는 것으로 확인되었다. 이상의 연구결과들은 rutin이 암화 과정 중 발생되는 세포의 악성변형 과정을 촉진시킨다고 잘 알려져 있는 MEK/ERK 및 MKK4/JNK 신호전달체계의 활성화를 억제함으로써 암예방 활성을 나타낸다는 것을 제시하고 있으며, 이는 메밀의 생리활성 성분인 rutin의 암예방 생리 활성 소재로서의 이용 가능성을 보여주는 중요한 연구 결과라 할 수 있겠다. 또한 위 연구결과는 MEK/ERK 및 MKK4/JNK 신호전달 체계를 표적으로 하는 생리활성 소재 탐색에도 활용 가능할 것으로 생각되어진다.

Keywords

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