Abstract
Cold atmosphere plasma has been shown as a promising technology for certain cancer treatments. In this paper, we report indirect plasma treatment using CAP discharged in cell culture medium and study the effect of identical plasma stimulated culture medium on melanoma cancer cells and fibroblast cells cultured in vitro. The results of MTT assay, migration assay, ROS detection, and alizarin red assay show that plasma-treated medium can have a strong negative effect on melanoma cancer cells compared with the control group. However, the plasma-treated medium has a less cytotoxic effect on fibroblast cells than that on melanoma cancer cells at the same treatment. This result is attributed to the production of reactive oxygen species in the plasma-treated medium to induce apoptosis and inhibit melanoma cell proliferation and further cell metastasis. According to the results, this study shows the potential of CAP plasma treatment for anti-cancer therapy.
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