Mouse Melanoma Cell Migration is Dependent on Production of Reactive Oxygen Species under Normoxia Condition

  • Im, Yun-Sun (Department of Bioscience and Biotechnology, Sejong University) ;
  • Ryu, Yun-Kyoung (Department of Bioscience and Biotechnology, Sejong University) ;
  • Moon, Eun-Yi (Department of Bioscience and Biotechnology, Sejong University)
  • Received : 2012.01.03
  • Accepted : 2012.02.21
  • Published : 2012.03.31


Cell migration plays a role in many physiological and pathological processes. Reactive oxygen species (ROS) produced in mammalian cells influence intracellular signaling processes which in turn regulate various biological activities. Here, we investigated whether melanoma cell migration could be controlled by ROS production under normoxia condition. Cell migration was measured by wound healing assay after scratching confluent monolayer of B16F10 mouse melanoma cells. Cell migration was enhanced over 12 h after scratching cells. In addition, we found that ROS production was increased by scratching cells. ERK phosphorylation was also increased by scratching cells but it was decreased by the treatment with ROS scavengers, N-acetylcysteine (NAC). Tumor cell migration was inhibited by the treatment with PD98059, ERK inhibitor, NAC or DPI, well-known ROS scavengers. Tumor cell growth as judged by succinate dehydrogenase activity was inhibited by NAC treatment. When mice were intraperitoneally administered with NAC, the intracellular ROS production was reduced in peripheral blood mononuclear cells. In addition, B16F10 tumor growth was significantly inhibited by in vivo treatment with NAC. Collectively, these findings suggest that tumor cell migration and growth could be controlled by ROS production and its downstream signaling pathways, in vitro and in vivo.


Supported by : Ministry of Health and Welfare, National Research Foundation of Korea (NRF)


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