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Natural Compound Shikonin Induces Apoptosis and Attenuates Epithelial to Mesenchymal Transition in Radiation-Resistant Human Colon Cancer Cells

Shilnikova K, Piao MJ, Kang KA, Madushan Fernando PDS, Lakmini Herath HMU, Cho SJ, Hyun JW

Radiation resistance represents an imperative obstacle in the treatment of patients with colorectal cancer, which remains difficult to overcome. Here, we explored the anti-proliferative and migration-inhibiting properties of the natural...
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Reduced Autophagy in 5-Fluorouracil Resistant Colon Cancer Cells

Yao CW, Kang KA, Piao MJ, Ryu YS, Fernando P, Oh MC, Park JE, Shilnikova K, Na SY, Jeong SU, Boo SJ, Hyun JW

We investigated the role of autophagy in SNUC5/5-FUR, 5-fluorouracil (5-FU) resistant SNUC5 colon cancer cells. SNUC5/5-FUR cells exhibited low level of autophagy, as determined by light microscopy, confocal microscopy, and...
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Galangin Activates the ERK/AKT-Driven Nrf2 Signaling Pathway to Increase the Level of Reduced Glutathione in Human Keratinocytes

Hewage SR, Piao MJ, Kang KA, Ryu YS, Fernando P, Oh MC, Park JE, Shilnikova K, Moon YJ, Shin DO, Hyun JW

Previously, we demonstrated that galangin (3,5,7-trihydroxyflavone) protects human keratinocytes against ultraviolet B (UVB)-induced oxidative damage. In this study, we investigated the effect of galangin on induction of antioxidant enzymes involved...
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A Benzylideneacetophenone Derivative Induces Apoptosis of Radiation-Resistant Human Breast Cancer Cells via Oxidative Stress

Park JE, Piao MJ, Kang KA, Shilnikova K, Hyun YJ, Oh SK, Jeong YJ, Chae S, Hyun JW

Benzylideneacetophenone derivative (1E)-1-(4-hydroxy-3-methoxyphenyl) hept-1-en-3-one (JC3) elicited cytotoxic effects on MDA-MB 231 human breast cancer cells-radiation resistant cells (MDA-MB 231-RR), in a dose-dependent manner, with an IC₅₀ value of 6 μM...
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Protective Effect of an Isoflavone, Tectorigenin, Against Oxidative Stress-induced Cell Death via Catalase Activation

Zhang R, Piao MJ, Oh MC, Park JE, Shilnikova K, Moon YJ, Kim DH, Jung U, Kim IG, Hyun JW

BACKGROUND: Isoflavones are biologically active compounds that occur naturally in a variety of plants, with relatively high levels in soybean. Tectorigenin, an isoflavone, protects against hydrogen peroxide (H2O2)-induced cell damage....
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