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Biological Trace Element Research

, Volume 160, Issue 2, pp 285–293 | Cite as

Selenium Reduces Mobile Phone (900 MHz)-Induced Oxidative Stress, Mitochondrial Function, and Apoptosis in Breast Cancer Cells

  • Mehmet Cemal Kahya
  • Mustafa NazıroğluEmail author
  • Bilal Çiğ
Article

Abstract

Exposure to mobile phone-induced electromagnetic radiation (EMR) may affect biological systems by increasing free oxygen radicals, apoptosis, and mitochondrial depolarization levels although selenium may modulate the values in cancer. The present study was designed to investigate the effects of 900 MHz radiation on the antioxidant redox system, apoptosis, and mitochondrial depolarization levels in MDA-MB-231 breast cancer cell line. Cultures of the cancer cells were divided into four main groups as controls, selenium, EMR, and EMR + selenium. In EMR groups, the cells were exposed to 900 MHz EMR for 1 h (SAR value of the EMR was 0.36 ± 0.02 W/kg). In selenium groups, the cells were also incubated with sodium selenite for 1 h before EMR exposure. Then, the following values were analyzed: (a) cell viability, (b) intracellular ROS production, (c) mitochondrial membrane depolarization, (d) cell apoptosis, and (e) caspase-3 and caspase-9 values. Selenium suppressed EMR-induced oxidative cell damage and cell viability (MTT) through a reduction of oxidative stress and restoring mitochondrial membrane potential. Additionally, selenium indicated anti-apoptotic effects, as demonstrated by plate reader analyses of apoptosis levels and caspase-3 and caspase-9 values. In conclusion, 900 MHz EMR appears to induce apoptosis effects through oxidative stress and mitochondrial depolarization although incubation of selenium seems to counteract the effects on apoptosis and oxidative stress.

Keywords

Mobile phone Oxidative stress Apoptosis Mitochondria Breast cancer 

Notes

Acknowledgments

The authors wish to thank Assoc. Prof. Dr. Selçuk Çömlekçi (Electronics and Communication Engineering, Suleyman Demirel University, Isparta, Turkey), for calculation of the specific absorption rates. MN formulated the present hypothesis and was responsible for writing the report. MCK and BÇ were responsible for analysis of the data. The project lasted for 3 months. MCK visited the Department of Biophysics for 2 months during the project. Abstract of the study was published in the 25th Turkish National Biophysics Congress, 24–26 September 2013, Trabzon, Turkey.

Conflict of Interest

There is no conflict interest in the study.

Funding

The study was supported by the Unit of Scientific Research Project (BAP), İzmir Katip Çelebi University, Turkey (Project Number: BAP: 2013-2-TSBP-09).

References

  1. 1.
    Valberg PA, van Deventer TE, Repacholi MH (2007) Workgroup report: base stations and wireless networks-radiofrequency (RF) exposures and health consequences. Environ Health Perspect 115:416–e424PubMedCentralPubMedCrossRefGoogle Scholar
  2. 2.
    Chavdoula ED, Panagopoulos DJ, Margaritis LH (2010) Comparison of biological effects between continuous and intermittent exposure to GSM-900-MHz mobile phone radiation: detection of apoptotic cell-death features. Mutat Res 700:51–61PubMedCrossRefGoogle Scholar
  3. 3.
    Jin Z, Zong C, Jiang B, Zhou Z, Tong J, Cao Y (2012) The effect of combined exposure of 900 MHz radiofrequency fields and doxorubicin in HL-60 cells. PLoS ONE 7(9):e46102PubMedCentralPubMedCrossRefGoogle Scholar
  4. 4.
    Nazıroğlu M, Tokat S, Demirci S (2012) Role of melatonin on electromagnetic radiation-induced oxidative stress and Ca2+ signaling molecular pathways in breast cancer. J Recept Signal Transduct Res 32:290–297PubMedCrossRefGoogle Scholar
  5. 5.
    Palumbo R, Brescia F, Capasso D, Sannino A, Sarti M, Capri M, Grassilli E, Scarfì MR (2008) Exposure to 900 MHz radiofrequency radiation induces caspase 3 activation in proliferating human lymphocytes. Radiat Res 170:327–334PubMedCrossRefGoogle Scholar
  6. 6.
    Guney M, Ozguner F, Oral B, Karahan N, Mungan T (2007) 900 MHz radiofrequency-induced histopathologic changes and oxidative stress in rat endometrium: protection by vitamins E and C. Toxicol Ind Health 23:411–420PubMedCrossRefGoogle Scholar
  7. 7.
    Nazıroğlu M, Çelik Ö, Özgül C, Doğan S, Bal R, Gümral N, Rodríguez AB, Pariente JA (2012) Melatonin modulates wireless devices (2.45 GHz)-induced brain and dorsal root ganglion injury through TRPM2 and voltage gated calcium channels in rat. Physiol Behav 105:683–692PubMedCrossRefGoogle Scholar
  8. 8.
    Lu YS, Huang BT, Huang YX (2012) Reactive oxygen species formation and apoptosis in human peripheral blood mononuclear cell induced by 900 MHz mobile phone radiation. Oxidative Med Cell Longev 2012:740280Google Scholar
  9. 9.
    Girgert R, Hanf V, Emons G, Gründker C (2010) Signal transduction of the melatonin receptor MT1 is disrupted in breast cancer cells by electromagnetic fields. Bioelectromagnetics 31:237–245PubMedGoogle Scholar
  10. 10.
    Reuter S, Gupta SC, Chaturvedi MM, Aggarwal BB (2010) Oxidative stress, inflammation, and cancer: how are they linked? Free Radic Biol Med 49:1603–16016PubMedCentralPubMedCrossRefGoogle Scholar
  11. 11.
    Manta AK, Stravopodis DJ, Papassideri IS, Margaritis LH. (2014) Reactive oxygen species elevation and recovery in Drosophila bodies and ovaries following short-term and long-term exposure to DECT base EMF. 33:118-131Google Scholar
  12. 12.
    Nazıroğlu M, Yüksel M, Köse SA, Özkaya MO (2013) Recent reports of Wi-Fi and mobile phone-induced radiation on oxidative stress and reproductive signaling pathways in females and males. J Membr Biol 2013(246):869–875Google Scholar
  13. 13.
    Özorak A, Nazıroğlu M, Çelik Ö et al (2013) Wi-Fi (2.45 GHz)-and mobile phone (900 and 1800 MHz)-induced risks on oxidative stress and elements in kidney and testis of rats during pregnancy and the development of offspring. Biol Trace Elem Res 156:221–229PubMedCrossRefGoogle Scholar
  14. 14.
    Espino J, Bejarano I, Redondo PC et al (2010) Melatonin reduces apoptosis induced by calcium signaling in human leukocytes: evidence for the involvement of mitochondria and Bax activation. J Membr Biol 233:105–118PubMedCrossRefGoogle Scholar
  15. 15.
    Chen T, Wong YS (2009) Selenocystine induces caspase-independent apoptosis in MCF-7 human breast carcinoma cells with involvement of p53 phosphorylation and reactive oxygen species generation. Int J Biochem Cell Biol 41:666–676PubMedCrossRefGoogle Scholar
  16. 16.
    Uğuz AC, Nazıroğlu M, Espino J et al (2009) Selenium modulates oxidative stress-induced cell apoptosis in human myeloid HL-60 cells via regulation of caspase-3, -9 and calcium influx. J Membr Biol 232:15–23PubMedCrossRefGoogle Scholar
  17. 17.
    Bejarano I, Redondo PC, Espino J et al (2009) Melatonin induces mitochondrial-mediated apoptosis in human myeloid HL-60 cells. J Pineal Res 46:392–400PubMedCrossRefGoogle Scholar
  18. 18.
    Shi Y (2002) Apoptosome: the cellular engine for the activation of caspase-9. Structure 10:285–288PubMedCrossRefGoogle Scholar
  19. 19.
    Conejo-García A, Núñez MC, Marchal JA et al (2011) Regiospecific microwave-assisted synthesis and cytotoxic activity against human breast cancer cells of (RS)-6-substituted-7- or 9-(2,3- dihydro-5H-1,4-benzodioxepin-3-yl)-7H- or -9H-purines. Chin Med J (Engl) 124:1193–1198Google Scholar
  20. 20.
    Song XL, Wang CH, Hu HY, Yu C, Bai C (2011) Microwave induces apoptosis in A549 human lung carcinoma cell line. Chin Med J (Engl) 124:1193–1198Google Scholar
  21. 21.
    Yoon J, Cho J, Kim N et al (2011) High-frequency microwave ablation method for enhanced cancer treatment with minimized collateral damage. Int J Cancer 129:1970–1978PubMedCrossRefGoogle Scholar
  22. 22.
    Rayman MP (2000) The importance of selenium to human health. Lancet 356:233–241PubMedCrossRefGoogle Scholar
  23. 23.
    Nazıroğlu M (2009) Role of selenium on calcium signaling and oxidative stress-induced molecular pathways in epilepsy. Neurochem Res 34:2181–2219PubMedCrossRefGoogle Scholar
  24. 24.
    Nazıroğlu M, Karaoğlu A, Aksoy AO (2004) Selenium and high dose vitamin E administration protects cisplatin-induced oxidative damage to renal, liver and lens tissues in rats. Toxicology 195:221–230PubMedCrossRefGoogle Scholar
  25. 25.
    Uğuz AC, Nazıroğlu M (2012) Effects of selenium on calcium signaling and apoptosis in rat dorsal root ganglion neurons induced by oxidative stress. Neurochem Res 37:1631–1638PubMedCrossRefGoogle Scholar
  26. 26.
    Koçer M, Nazıroğlu M (2013) Effects of 5-fluorouracil on oxidative stress and calcium levels in the blood of patients with newly diagnosed colorectal cancer. Biol Trace Elem Res 155:327–232PubMedCrossRefGoogle Scholar
  27. 27.
    Koçer M, Nazıroğlu M, Koçer G, Sonmez TT (2014) Effects of bisphosphonate on oxidative stress levels in patients with cancer. Cancer Invest 32:37–42PubMedCrossRefGoogle Scholar
  28. 28.
    Schrauzer GN (2009) Selenium and selenium-antagonistic elements in nutritional cancer prevention. Crit Rev Biotechnol 29:10–17PubMedCrossRefGoogle Scholar
  29. 29.
    Papp LV, Lu J, Holmgren A, Khanna KK (2007) From selenium to selenoproteins: synthesis, identity, and their role in human health. Antiox Redox Signal 9:775–806CrossRefGoogle Scholar
  30. 30.
    Guan L, Han B, Li J, Li Z, Huang F, Yang Y, Xu C (2009) Exposure of human leukemia NB4 cells to increasing concentrations of selenite switches the signaling from pro-survival to pro-apoptosis. Ann Hematol 88:733–742PubMedCrossRefGoogle Scholar
  31. 31.
    Nazıroğlu M, Ciğ B, Doğan S, Uğuz AC, Dilek S, Faouzi D (2012) 2.45-GHz wireless devices induce oxidative stress and proliferation through cytosolic Ca2+ influx in human leukemia cancer cells. Int J Radiat Biol 88:449–456PubMedCrossRefGoogle Scholar
  32. 32.
    Burkhardt M, Poković K, Gnos M, Schmid T, Kuster N (1996) Numerical and experimental dosimetry of Petri dish exposure setups. Bioelectromagnetics 17:483–493PubMedCrossRefGoogle Scholar
  33. 33.
    Carballo-Quintás M, Martínez-Silva I, Cadarso-Suárez C, Alvarez-Figueiras M, Ares-Pena FJ, López-Martín E (2011) A study of neurotoxic biomarkers, c-fos and GFAP after acute exposure to GSM radiation at 900 MHz in the picrotoxin model of rat brains. Neurotoxicology 32:478–494PubMedCrossRefGoogle Scholar
  34. 34.
    Nazıroğlu M, Çiğ B, Özgül C (2013) Neuroprotection induced by N-acetylcysteine against cytosolic glutathione depletion induced-Ca2+ influx in dorsal root ganglion neurons of mice: role of TRPV1 channels. Neuroscience 242:151–160PubMedCrossRefGoogle Scholar
  35. 35.
    Rothe G, Oser A, Valet G (1988) Dihydrorhodamine 123: a new flow cytometric indicator for respiratory burst activity in neutrophil granulocytes. Naturwissenschaften 75:354–355PubMedCrossRefGoogle Scholar
  36. 36.
    Ghazizadeh V, Nazıroğlu M (2014) Electromagnetic radiation (Wi-Fi) and epilepsy induce calcium entry and apoptosis through activation of TRPV1 channel in hippocampus and dorsal root ganglion of rats. Metab Brain Dis. doi: 10.1007/s11011-014-9549-9 PubMedGoogle Scholar
  37. 37.
    Lee J-S, Huang T-Q, Kim T-H, Kim JY, Kim HJ, Pack J-K, Seo J-S (2006) Radiofrequency radiation does not induce stress response in human T-lymphocytes and rat primary astrocytes. Bioelectromagnetics 27:578–588PubMedCrossRefGoogle Scholar
  38. 38.
    Schreck R, Albermann K, Baeuerle PA (1992) Nuclear factor kappa B: an oxidative stress-responsive transcription factor of eukaryotic cells (a review). Free Radic Res Commun 17:221–237PubMedCrossRefGoogle Scholar
  39. 39.
    Kovács R, Kardos J, Heinemann U, Kann O (2005) Mitochondrial calcium ion and membrane potential transients follow the pattern of epileptiform discharges in hippocampal slice cultures. J Neurosci 25:4260–4269PubMedCrossRefGoogle Scholar
  40. 40.
    Espino J, Pariente JA, Rodríguez AB (2012) Oxidative stress and immunosenescence: therapeutic effects of melatonin. Oxidative Med Cell Longev 2012:670294CrossRefGoogle Scholar
  41. 41.
    Nazıroğlu M (2007) New molecular mechanisms on the activation of TRPM2 channels by oxidative stress and ADP-ribose. Neurochem Res 32:1990–2001PubMedCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Mehmet Cemal Kahya
    • 1
  • Mustafa Nazıroğlu
    • 2
    • 3
    • 4
    Email author
  • Bilal Çiğ
    • 3
  1. 1.Department of Biophysics, Faculty of MedicineIzmir Katip Celebi UniversityIzmirTurkey
  2. 2.Neuroscience Research CenterSuleyman Demirel UniversityIspartaTurkey
  3. 3.Department of Biophysics, Faculty of MedicineSuleyman Demirel UniversityIspartaTurkey
  4. 4.Department of Physiology and BiophysicsWeill Cornell Medical College in Qatar, Qatar FoundationDohaQatar

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