Carcinogenesis, Teratogenesis & Mutagenesis ›› 2015, Vol. 27 ›› Issue (2): 81-85,90.doi: 10.3969/j.issn.1004-616x.2015.02.001

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Preventive effect and mechanisms of 3,3'-diindolylmethane on oxidative stress induced by hydrogen peroxide in HaCaT cells

YIN Hua1,2, LI Wenxue2, LI Mengcheng3, DENG Yuting1, LI Jinhui1,2, LI Juntao2, WU Jinyin2, YANG Guangyu2, LIN Zhongning4, ZHU Wei2   

  1. 1. Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, Guangdong;
    2. Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, Guangdong;
    3. Southern Medical University, School of Public Health and Tropical Medicine, Guangzhou 510515, Guangdong;
    4. College of Public Health, Xiamen University, Xiamen 361102, Fujian, China
  • Received:2014-12-10 Revised:2015-01-26 Online:2015-03-31 Published:2015-03-31
  • About author:10.3969/j.issn.1004-616x.2015.02.001

Abstract:

OBJECTIVE:To observe the effects of 3, 3'-diindolylmethane (DIM) on oxidative stress induced by hydrogen peroxide (H2O2) in HaCaT cells. METHODS:HaCaT cells were treated with different concentrations of H2O2 to establish the models of oxidative stress. CCK-8 assay was performed to evaluate the inhibitive effects of DIM (1-20 μmol/L) on cells proliferation. The intracellular reactive oxygen species (ROS) levels were measured with flow cytometry. Furthermore, the effects of DIM (0, 5 and 10 μmol/L) on H2O2-induced the phosphorylation level of nuclear factor κB (p-NF-κB), the expression of mitogen activated protein kinase (MAPKs) were detected with Western blot. RESULTS: The cell model of oxidative stress was successfully established. The results of CCK-8 assay showed that in the doses of 1-10 μmol/L, DIM did not have obvious influence on cell viability (P>0.05). Flow cytometry results indicated that pre-treatment with DIM (10 μmol/L) could inhibit the level of intracellular ROS (P<0.05). With increasing concentration of DIM, the levels of p-p38-MAPK, p-JNK and p-NF-κB were significantly depressed. CONCLUSION: DIM could protect HaCaT cells from H2O2-induced oxidative stress via suppressing production of ROS levels and down-regulating the expression of NF-κB and members of MAPKs. DIM might be used as an effective drug to treat or reduce oxidative stress-mediated injury in skin cells.

Key words: 3,3'-diindolylmethane, HaCaT cells, hydrogen peroxide, oxidative stress

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