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Temiz E, Bostancıklıoğlu M. Electromagnetic Fields Trigger Cell Death in Glioblastoma Cells through Increasing miR-126-5p and Intracellular Ca 2+ Levels. Cell Biochem Biophys 2024:10.1007/s12013-024-01449-9. [PMID: 39048853 DOI: 10.1007/s12013-024-01449-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2024] [Indexed: 07/27/2024]
Abstract
Electromagnetic fields create potential negative implications on biological systems, including modifications to DNA structure, nuclear condensation, cellular ion transport, and intracellular Ca2+ accumulation. To explore these effects on cancer cells, we exposed prostate, glioblastoma and cervix cancer cell lines to electromagnetic fields of wireless and assessed its anti-proliferative effects. PC3, A172, and HeLa cancer cells were cultured and exposed to electromagnetic fields for 24, 48, and 72 h. We used the MTT assay to detect cell viability and proliferation, Annexin V staining to determine apoptotic cells, and confocal microscopy to measure apoptosis-mediated intracellular calcium signals. Additionally, we performed profiling for apoptosis-related miRNAs. The results indicated that the electromagnetic field triggers apoptosis in the glioblastoma cell line A172 by increasing level of miR-129-5p, a known tumor suppressor. In contrast, the cervix cancer cell line and the prostate cancer cell line remained largely unaffected. In summary, our investigation underscores that electromagnetic fields at a 2.4 GHz frequency may adversely affect certain cancer cell lines, notably triggering apoptosis in the glioblastoma cancer cell line.
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Affiliation(s)
- Ebru Temiz
- Departments of Endocrinology, Diabetes and Nutrition Center, Université Catholique de Louvain (UCLouvain), Brussels, Belgium.
- Medical Promotion and Marketing Program, Vocational School of Health Services, Harran University, Sanliurfa, Turkey.
| | - Mehmet Bostancıklıoğlu
- Departments of Endocrinology, Diabetes and Nutrition Center, Université Catholique de Louvain (UCLouvain), Brussels, Belgium
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2
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Moori M, Norouzian D, Yaghmaei P, Farahmand L. Electromagnetic field as a possible inhibitor of tumor invasion by declining E-cadherin/N-cadherin switching in triple negative breast cancer. Electromagn Biol Med 2024:1-10. [PMID: 39045872 DOI: 10.1080/15368378.2024.2381575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 07/14/2024] [Indexed: 07/25/2024]
Abstract
Breast cancer has been recognized as the most common cancer affecting women. Extremely low-frequency electromagnetic field (ELF-EMF) exposure can influence cellular activities such as cell-cell junctions and metastasis. However, more research is required to determine these fields' underlying mechanisms of action. Since cadherin switching is an important process during EMT (epithelial-mesenchymal transition), in this study, cadherin switching was regarded as one of the probable mechanisms of the effect of ELF-EMFs on metastasis suppression. For five days, breast cells received a 1 Hz, 100mT ELF-EMF (2 h/day). Cell invasion and migration were assessed in vitro by the Scratch wound healing assay and Transwell culture chambers. The expression of E- and N-cadherin was assessed using real-time PCR, western blotting, and Immunocytochemistry. ELF-EMF dramatically reduced the migration and invasion of MDA-MB 231 malignant cells compared to sham exposure, according to the results of the scratch test and the Transwell invasion test. The mRNA and protein expression levels of E-cadherin showed an increase, while the N-cadherin expression was found with a decrease, in MDA-MB231 cells receiving 1 Hz EMF compared to sham exposure. E-cadherin's mRNA and protein expression levels were enhanced in MCF10A cells receiving 1 Hz EMF compared to sham exposure. ELF-EMF can be used as a method for the multifaceted treatments of invasive breast cancer.
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Affiliation(s)
- Maryam Moori
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Dariush Norouzian
- Pilot Nanobiotechnology Department, Pasteur Institute of Iran, Tehran, Iran
| | - Parichehr Yaghmaei
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Leila Farahmand
- Recombinant Proteins Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
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3
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López de Mingo I, Rivera González MX, Maestú Unturbe C. The Cellular Response Is Determined by a Combination of Different ELF-EMF Exposure Parameters: A Scope Review. Int J Mol Sci 2024; 25:5074. [PMID: 38791113 PMCID: PMC11121623 DOI: 10.3390/ijms25105074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 04/29/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
Since the establishment of regulations for exposure to extremely low-frequency (0-300) Hz electromagnetic fields, scientific opinion has prioritised the hypothesis that the most important parameter determining cellular behaviour has been intensity, ignoring the other exposure parameters (frequency, time, mode, waveform). This has been reflected in the methodologies of the in vitro articles published and the reviews in which they are included. A scope review was carried out, grouping a total of 79 articles that met the proposed inclusion criteria and studying the effects of the different experiments on viability, proliferation, apoptosis, oxidative stress and the cell cycle. These results have been divided and classified by frequency, intensity, exposure time and exposure mode (continuous/intermittent). The results obtained for each of the processes according to the exposure parameter used are shown graphically to highlight the importance of a good methodology in experimental development and the search for mechanisms of action that explain the experimental results, considering not only the criterion of intensity. The consequence of this is a more than necessary revision of current exposure protection regulations for the general population based on the reductionist criterion of intensity.
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Affiliation(s)
- Isabel López de Mingo
- Centro de Tecnología Biomédica (CTB), Universidad Politécnica de Madrid (UPM), 28223 Madrid, Spain; (I.L.d.M.); (M.-X.R.G.)
- Escuela Técnica Superior de Ingenieros de Telecomunicación (ETSIT), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
| | - Marco-Xavier Rivera González
- Centro de Tecnología Biomédica (CTB), Universidad Politécnica de Madrid (UPM), 28223 Madrid, Spain; (I.L.d.M.); (M.-X.R.G.)
- Escuela Técnica Superior de Ingenieros Informáticos (ETSIINF), Universidad Politécnica de Madrid (UPM), 28223 Madrid, Spain
| | - Ceferino Maestú Unturbe
- Centro de Tecnología Biomédica (CTB), Universidad Politécnica de Madrid (UPM), 28223 Madrid, Spain; (I.L.d.M.); (M.-X.R.G.)
- Escuela Técnica Superior de Ingenieros de Telecomunicación (ETSIT), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain
- Centro de Investigación en Red—Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
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Zolotukhin DB, Horkowitz A, Keidar M. Electromagnetic Nature of Distant Interaction of the Atmospheric Pressure Helium Plasma Discharge Tube with Glioblastoma Cancer Cells. ACS APPLIED MATERIALS & INTERFACES 2024; 16:13597-13610. [PMID: 38453642 DOI: 10.1021/acsami.4c00619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Atmospheric pressure coaxial gaseous discharge tubes (DTs) with helium have demonstrated potential for in vitro inactivation or sensitization of glioblastoma cancer cells. Here, we study the effect of two configurations of the DT electrode system on its electromagnetic emissivity as well as other physical factors (heating and UV emission) that form in the vicinity of this device. We demonstrate that the configuration of the DT electrodes that concentrates the discharge streamers near the top of the device has a distant (cm scale) deactivation effect on U87-MG glioblastoma cancer cells when irradiated, without measurable UV components in the DT optical emission spectra. This effect persists even through different barriers such as glass, plastic, or quartz Petri dishes but is eliminated when glass or plastic dishes are filled with water. These findings demonstrate the potential for development of noninvasive, physical-based treatment methods of deep-tissue tumors.
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Affiliation(s)
- Denis B Zolotukhin
- The George Washington University, 800 22nd Street, Northwest, Washington, District of Columbia 20052, United States
- Tomsk State University of Control Systems and Radioelectronics, 40 Lenin Avenue, Tomsk 634050, Russia
| | - Alex Horkowitz
- The George Washington University, 800 22nd Street, Northwest, Washington, District of Columbia 20052, United States
| | - Michael Keidar
- The George Washington University, 800 22nd Street, Northwest, Washington, District of Columbia 20052, United States
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Zahumenska R, Badurova B, Pavelek M, Sojka P, Pavlisova T, Spanik P, Sivonova MK, Novakova S, Strnadel J, Halasova E, Frivaldsky M, Skovierova H. Comparison of pulsed and continuous electromagnetic field generated by WPT system on human dermal and neural cells. Sci Rep 2024; 14:5514. [PMID: 38448548 PMCID: PMC10918061 DOI: 10.1038/s41598-024-56051-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 03/01/2024] [Indexed: 03/08/2024] Open
Abstract
In recent decades, we have seen significant technical progress in the modern world, leading to the widespread use of telecommunications systems, electrical appliances, and wireless technologies. These devices generate electromagnetic radiation (EMR) and electromagnetic fields (EMF) most often in the extremely low frequency or radio-frequency range. Therefore, they were included in the group of environmental risk factors that affect the human body and health on a daily basis. In this study, we tested the effect of exposure EMF generated by a new prototype wireless charging system on four human cell lines (normal cell lines-HDFa, NHA; tumor cell lines-SH-SY5Y, T98G). We tested different operating parameters of the wireless power transfer (WPT) device (87-207 kHz, 1.01-1.05 kW, 1.3-1.7 mT) at different exposure times (pulsed 6 × 10 min; continuous 1 × 60 min). We observed the effect of EMF on cell morphology and cytoskeletal changes, cell viability and mitotic activity, cytotoxicity, genotoxicity, and oxidative stress. The results of our study did not show any negative effect of the generated EMF on either normal cells or tumor cell lines. However, in order to be able to estimate the risk, further population and epidemiological studies are needed, which would reveal the clinical consequences of EMF impact.
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Affiliation(s)
- Romana Zahumenska
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia
| | - Bibiana Badurova
- Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4D, 036 01, Martin, Slovakia
| | - Miroslav Pavelek
- Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, 010 26, Žilina, Slovakia
| | - Peter Sojka
- Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, 010 26, Žilina, Slovakia
| | - Tereza Pavlisova
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia
| | - Pavol Spanik
- Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, 010 26, Žilina, Slovakia
| | - Monika Kmetova Sivonova
- Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4D, 036 01, Martin, Slovakia
| | - Slavomira Novakova
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia
| | - Jan Strnadel
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia
| | - Erika Halasova
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia
| | - Michal Frivaldsky
- Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, 010 26, Žilina, Slovakia.
| | - Henrieta Skovierova
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia.
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Pantelis P, Theocharous G, Veroutis D, Vagena IA, Polyzou A, Thanos DF, Kyrodimos E, Kotsinas A, Evangelou K, Lagopati N, Gorgoulis VG, Kotopoulos N. Pulsed Electromagnetic Fields (PEMFs) Trigger Cell Death and Senescence in Cancer Cells. Int J Mol Sci 2024; 25:2473. [PMID: 38473720 DOI: 10.3390/ijms25052473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 02/10/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024] Open
Abstract
The currently available anti-cancer therapies, such as gamma-radiation and chemotherapeutic agents, induce cell death and cellular senescence not only in cancer cells but also in the adjacent normal tissue. New anti-tumor approaches focus on limiting the side effects on normal cells. In this frame, the potential anti-tumor properties of Pulsed Electromagnetic Fields (PEMFs) through the irradiation of breast cancer epithelial cells (MCF-7 and MDA-MB-231) and normal fibroblasts (FF95) were investigated. PEMFs had a frequency of 8 Hz, full-square wave type and magnetic flux density of 0.011 T and were applied twice daily for 5 days. The data collected showcase that PEMF application decreases the proliferation rate and viability of breast cancer cells while having the opposite effect on normal fibroblasts. Moreover, PEMF irradiation induces cell death and cellular senescence only in breast cancer cells without any effect in the non-cancerous cells. These findings suggest PEMF irradiation as a novel, non-invasive anti-cancer strategy that, when combined with senolytic drugs, may eliminate both cancer and the remaining senescent cells, while simultaneously avoiding the side effects of the current treatments.
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Affiliation(s)
- Pavlos Pantelis
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
| | - Giorgos Theocharous
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
| | - Dimitris Veroutis
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
| | - Ioanna-Aglaia Vagena
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
| | - Aikaterini Polyzou
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
| | - Dimitris-Foivos Thanos
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
| | - Efthymios Kyrodimos
- 1st ENT Department, Hippocration Hospital, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
| | - Athanassios Kotsinas
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
| | - Konstantinos Evangelou
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
| | - Nefeli Lagopati
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
- Biomedical Research Foundation, Academy of Athens, 11527 Athens, Greece
| | - Vassilis G Gorgoulis
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
- Biomedical Research Foundation, Academy of Athens, 11527 Athens, Greece
- Ninewells Hospital and Medical School, University of Dundee, Dundee DD1 9SY, UK
- Faculty Institute for Cancer Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester M20 4GJ, UK
- Faculty of Health and Medical Sciences, University of Surrey, Surrey GU2 7YH, UK
| | - Nicholas Kotopoulos
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens (NKUA), 11527 Athens, Greece
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Niajalili M, Mohsen Roostayi M, Daryabor A, Naimi SS, Amoli MJ. The effect of Tecar therapy on neurological disorders and nerve conduction velocity of lower limbs in peripheral neuropathy of type 2 diabetic patients: A six-week follow-up study. Turk J Phys Med Rehabil 2023; 69:479-487. [PMID: 38766579 PMCID: PMC11099859 DOI: 10.5606/tftrd.2023.11875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 04/14/2023] [Indexed: 05/22/2024] Open
Abstract
Objectives This study aimed to investigate the effect of Tecar therapy on neuropathy symptoms and tibial nerve conduction velocity in individuals with diabetes. Patients and methods The single-blind, randomized, sham-controlled clinical trial was conducted between January 2019 and October 2019. Twenty-four type 2 diabetics (8 males, 16 females; mean age: 60.4±8.9 years; range, 40 to 78 years) with peripheral neuropathy were randomly allocated to control (n=12) and study (n=12) groups. The study group received the capacitive Tecar therapy with 10 to 30% intensity and infrared radiation in 10 sessions. The controls received the same protocol with zero intensity. The neuropathy symptoms and nerve conduction velocity were evaluated at baseline, after 10 sessions, and six weeks after the end of sessions. Results There were no significant differences in variables (p>0.05). In this way, the homogeneity of the data variables was confirmed. Moreover, the results of two-way mixed analysis of variance showed that improvement of neuropathy symptoms in the study group was significantly more than controls in all stages (p<0.001). After 10 sessions, the results of post hoc analysis showed that the neuropathy symptoms and tibial nerve conduction velocity were significantly improved in both groups (p<0.05). However, there was no change in these outcomes after six weeks in the control group (p>0.05). Conclusion Tecar therapy could improve neuropathy symptoms and tibial nerve conduction velocity in diabetic individuals with peripheral neuropathy. Therefore, the use of this method to control the symptoms of diabetic patients can be recommended.
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Affiliation(s)
- Maryam Niajalili
- Department of Physiotheraphy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohamad Mohsen Roostayi
- Physiotherapy Research Center, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aliyeh Daryabor
- Physiotherapy Research Center, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sedigheh Sadat Naimi
- Physiotherapy Research Center, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mitra Javan Amoli
- Student Research Committee, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Aydinbelge-Dizdar N, Akbulut A, Koca G, Yumusak N, Canseven Kursun AG, Billur D, Korkmaz M. Nasal mucociliary clearance after extremely low frequency by scintigraphic and histopathologic evaluation. Laryngoscope 2023; 133:2081-2089. [PMID: 36444894 DOI: 10.1002/lary.30490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 11/04/2022] [Accepted: 11/08/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To investigate the effect of exposure to extremely low-frequency magnetic fields (ELF-MFs) on nasal mucociliary clearance (MCC) by rhinosintigrapic and histopathological evaluation. MATERIALS AND METHODS The rats were separated into three groups according to ELF-MFs intensity and control group. The exposure groups were standardized for the ELF-MFs of 1, 1.5, and 2 mT emitted by 3 Helmholtz coils for 4 h/day for 30 days. Rhinoscintigraphy was performed to measure nasal MCC. The nasal tissues were examined for edema, inflammation, hyperemia, necrosis, ciliary loss, goblet cell density, and fibroblast proliferation. The data were evaluated statistically (p < 0.05). RESULTS Nasal mucociliary clearance rates (NMCR) were calculated as 33.13 ± 5.91% in control, 27.78 ± 4.7% in 1 mT, 22.67 ± 5.43% in 1.5 mT, and 18.11 ± 6.33% in 2 mT. NMCR were decreased with increasing ELF-MFs, in 1.5 and 2 mT groups (p < 0.05) compared to control. Nasal mucociliary transport rate (NMTR) values were found to be 2.17 ± 0.33 mm/min in control, 1.82 ± 0.32 mm/min in 1 mT, 1.46 ± 0.34 mm/min in 1.5 mT and 1.24 ± 0.29 mm/min in 2 mT. NMTR was decreased in the groups exposed to 1.5 and 2 mT (p < 0.05) compared to control. The edema, hyperemia, inflammation, ciliary loss, and goblet cell density were statistically significant differences between control and groups exposed to 1.5 and 2 mT (p < 0.05). CONCLUSION Our rat model has shown nasal mucosa damage and decreased NMCR and NMTR by rhinoscintigraphy as ELF-MFs intensity increases. It may be detrimental to nasal mucosa mucociliary function depending on the ELF-MFs intensity. LEVEL OF EVIDENCE N/A Laryngoscope, 133:2081-2089, 2023.
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Affiliation(s)
- Nur Aydinbelge-Dizdar
- Department of Nuclear Medicine, University of Health Sciences, Gulhane Training and Research Hospital, Ankara, Turkey
| | - Aylin Akbulut
- Department of Nuclear Medicine, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey
| | - Gokhan Koca
- Department of Nuclear Medicine, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey
| | - Nihat Yumusak
- Department of Pathology, Faculty of Veterinary Medicine, University of Harran, Sanlıurfa, Turkey
| | | | - Deniz Billur
- Department of Histology and Embryology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Meliha Korkmaz
- Department of Nuclear Medicine, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey
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9
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Ramazi S, Salimian M, Allahverdi A, Kianamiri S, Abdolmaleki P. Synergistic cytotoxic effects of an extremely low-frequency electromagnetic field with doxorubicin on MCF-7 cell line. Sci Rep 2023; 13:8844. [PMID: 37258563 DOI: 10.1038/s41598-023-35767-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/23/2023] [Indexed: 06/02/2023] Open
Abstract
Breast cancer is one of the leading causes of cancer deaths in women worldwide. Magnetic fields have shown anti-tumor effects in vitro and in vivo as a non-invasive therapy method that can affect cellular metabolism remotely. Doxorubicin (DOX) is one of the most commonly used drugs for treating breast cancer patients. It can be assumed that combining chemotherapy and magnetotherapy is one of the most effective treatments for breast cancer. This study aimed to investigate the potential cytotoxic effect of DOX at low concentrations in combination with extremely low-frequency electromagnetic fields (ELF-EMF; 50 Hz; 20 mT). The breast cancer cell line MCF-7 was examined for oxidative stress, cell cycle, and apoptosis. MCF-7 cells were treated with various concentrations of DOX as an apoptosis-inducing agent and ELF-EMF. Cytotoxicity was examined using the MTT colorimetric assay at 12, 24, and 48 h. Consequently, concentration- and time-dependent cytotoxicity was observed in MCF-7 cells for DOX within 24 h. The MTT assay results used showed that a 2 μM concentration of DOX reduced cell viability to 50% compared with control, and as well, the combination of ELF-EMF and DOX reduced cell viability to 50% compared with control at > 0.25 μM doses for 24 h. In MCF-7 cells, combining 0.25 μM DOX with ELF-EMF resulted in increased ROS levels and DOX-induced apoptosis. Flow cytometry analysis, on the other hand, revealed enhanced arrest of MCF-7 cells in the G0-G1 phase of the cell cycle, as well as inducing apoptotic cell death in MCF-7 cells, implying that the synergistic effects of 0.25 μM DOX and ELF-EMF may represent a novel and effective agent against breast cancer.
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Affiliation(s)
- Shahin Ramazi
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Jalal Ale Ahmad Highway, P.O. Box: 14115-111, Tehran, Iran
| | - Mani Salimian
- Department of Nano-Biotechnology, Faculty of Biological Sciences, Tarbiat Modares University, 14115-175, Tehran, Iran
| | - Abdollah Allahverdi
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Jalal Ale Ahmad Highway, P.O. Box: 14115-111, Tehran, Iran
| | - Shahla Kianamiri
- Department of Nanotechnology, Agricultural Biotechnology Research Institute of Iran, Agricultural Research, Education, and Extension Organization, Karaj, Iran
| | - Parviz Abdolmaleki
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Jalal Ale Ahmad Highway, P.O. Box: 14115-111, Tehran, Iran.
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Ma T, Ding Q, Liu C, Wu H. Electromagnetic fields regulate calcium-mediated cell fate of stem cells: osteogenesis, chondrogenesis and apoptosis. Stem Cell Res Ther 2023; 14:133. [PMID: 37194107 DOI: 10.1186/s13287-023-03303-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/28/2023] [Indexed: 05/18/2023] Open
Abstract
Electromagnetic fields (EMF) are increasing in popularity as a safe and non-invasive therapy. On the one hand, it is widely acknowledged that EMF can regulate the proliferation and differentiation of stem cells, promoting the undifferentiated cells capable of osteogenesis, angiogenesis, and chondroblast differentiation to achieve bone repair purpose. On the other hand, EMF can inhibit tumor stem cells proliferation and promote apoptosis to suppress tumor growth. As an essential second messenger, intracellular calcium plays a role in regulating cell cycle, such as proliferation, differentiation and apoptosis. There is increasing evidence that the modulation of intracellular calcium ion by EMF leads to differential outcomes in different stem cells. This review summarizes the regulation of channels, transporters, and ion pumps by EMF-induced calcium oscillations. It furtherly discusses the role of molecules and pathways activated by EMF-dependent calcium oscillations in promoting bone and cartilage repair and inhibiting tumor stem cells growth.
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Affiliation(s)
- Tian Ma
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Qing Ding
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Chaoxu Liu
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
| | - Hua Wu
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
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11
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Sun J, Tong Y, Jia Y, Jia X, Wang H, Chen Y, Wu J, Jin W, Ma Z, Cao K, Li X, Chen Z, Yang G. Effects of extremely low frequency electromagnetic fields on the tumor cell inhibition and the possible mechanism. Sci Rep 2023; 13:6989. [PMID: 37117238 PMCID: PMC10147919 DOI: 10.1038/s41598-023-34144-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 04/25/2023] [Indexed: 04/30/2023] Open
Abstract
Low-frequency magnetic fields exert a significant inhibitory effect on tumor growth and have been developed as a therapeutic modality. However, the effect of a low-frequency magnetic field on the interaction between cells is still poorly understood. This study aimed to preliminarily evaluate the direct effect of magnetic field ditectely on cultured cells and indirect effect mediated by cell-environment (conditioned medium). 293 T cells, Hepg2 cells, A549 cells have been cultured at 37 ± 0.18 °C in presence of an extremely low-frequency magnetic field of 20 Hz, 5-mT. The adherent tumor cells were more sensitive to magnetic field inhibition in the original environment (conditioned medium) with adherence inhibition rate for Hepg2 and A549 estimated at 18% and 30% respectively. The inhibition effect was suppressed when the suspended cells separated or clump density at a low density. The nontumor cell lines showed no inhibitory effect on exposure to a low-frequency magnetic field. The intracellular ion fluorescence (IIF) showed that the magnetic field significantly altered the membrane potential, indicating hyperpolarization of the adherent cells (ΔIIF 293 T cells: - 25%, ΔIIF Hepg2 cells: - 20% and ΔIIF A549 cells: - 13%) and depolarization of the suspended cells (ΔIIF Raji cells: + 9%). In addition, the conditioned media collected after magnetic field exposure acted on unexposed tumor cells and caused inhibition. Our findings might provide a basis for the mechanism of magnetic field interaction between cells and cell environment in the future.
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Affiliation(s)
- Jie Sun
- International Research Center for Biological Sciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Aquatic Animal Pathogen Collection Center, Shanghai Ocean University, Shanghai, 201306, China
- Aquatic Animal Genetics and Breeding Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Yingying Tong
- International Research Center for Biological Sciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Aquatic Animal Pathogen Collection Center, Shanghai Ocean University, Shanghai, 201306, China
- Aquatic Animal Genetics and Breeding Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Yu Jia
- International Research Center for Biological Sciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Aquatic Animal Pathogen Collection Center, Shanghai Ocean University, Shanghai, 201306, China
- Aquatic Animal Genetics and Breeding Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Xu Jia
- International Research Center for Biological Sciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Aquatic Animal Pathogen Collection Center, Shanghai Ocean University, Shanghai, 201306, China
- Aquatic Animal Genetics and Breeding Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Hua Wang
- Shanghai Telebio Biomedical Co., Ltd, Shanghai, China
| | - Yang Chen
- International Research Center for Biological Sciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Aquatic Animal Pathogen Collection Center, Shanghai Ocean University, Shanghai, 201306, China
- Aquatic Animal Genetics and Breeding Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Jiamin Wu
- Zhejiang Huayi Health Industry Development Co., Ltd, Hangzhou, China
| | - Weiyang Jin
- Zhejiang Huayi Health Industry Development Co., Ltd, Hangzhou, China
| | - Zheng Ma
- Huisi Anpu Medical System Co., Ltd, Qinhuangdao, China
| | - Kai Cao
- Huisi Anpu Medical System Co., Ltd, Qinhuangdao, China
| | - Xiangdong Li
- Huisi Anpu Medical System Co., Ltd, Qinhuangdao, China
| | - Zhonglin Chen
- Huisi Anpu Medical System Co., Ltd, Qinhuangdao, China
| | - Guanghua Yang
- International Research Center for Biological Sciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China.
- National Aquatic Animal Pathogen Collection Center, Shanghai Ocean University, Shanghai, 201306, China.
- Aquatic Animal Genetics and Breeding Center, Shanghai Ocean University, Shanghai, 201306, China.
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12
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Lazzarini R, Eléxpuru-Zabaleta M, Piva F, Giulietti M, Fulgenzi G, Tartaglione MF, Zingaretti L, Tagliabracci A, Valentino M, Santarelli L, Bracci M. Effects of extremely low-frequency magnetic fields on human MDA-MB-231 breast cancer cells: proteomic characterization. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 253:114650. [PMID: 36805133 DOI: 10.1016/j.ecoenv.2023.114650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 01/29/2023] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
Extremely low-frequency electromagnetic fields (ELF-MF) can modify the cell viability and regulatory processes of some cell types, including breast cancer cells. Breast cancer is a multifactorial disease where a role for ELF-MF cannot be excluded. ELF-MF may influence the biological properties of breast cells through molecular mechanisms and signaling pathways that are still unclear. This study analyzed the changes in the cell viability, cellular morphology, oxidative stress response and alteration of proteomic profile in breast cancer cells (MDA-MB-231) exposed to ELF-MF (50 Hz, 1 mT for 4 h). Non-tumorigenic human breast cells (MCF-10A) were used as control cells. Exposed MDA-MB-231 breast cancer cells increased their viability and live cell number and showed a higher density and length of filopodia compared with the unexposed cells. In addition, ELF-MF induced an increase of the mitochondrial ROS levels and an alteration of mitochondrial morphology. Proteomic data analysis showed that ELF-MF altered the expression of 328 proteins in MDA-MB-231 cells and of 242 proteins in MCF-10A cells. Gene Ontology term enrichment analysis demonstrated that in both cell lines ELF-MF exposure up-regulated the genes enriched in "focal adhesion" and "mitochondrion". The ELF-MF exposure decreased the adhesive properties of MDA-MB-231 cells and increased the migration and invasion cell abilities. At the same time, proteomic analysis, confirmed by Real Time PCR, revealed that transcription factors associated with cellular reprogramming were upregulated in MDA-MB-231 cells and downregulated in MCF-10A cells after ELF-MF exposure. MDA-MB-231 breast cancer cells exposed to 1 mT 50 Hz ELF-MF showed modifications in proteomic profile together with changes in cell viability, cellular morphology, oxidative stress response, adhesion, migration and invasion cell abilities. The main signaling pathways involved were relative to focal adhesion, mitochondrion and cellular reprogramming.
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Affiliation(s)
- Raffaella Lazzarini
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
| | - Maria Eléxpuru-Zabaleta
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, 39011 Santander, Spain.
| | - Francesco Piva
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, 60131 Ancona, Italy.
| | - Matteo Giulietti
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, 60131 Ancona, Italy.
| | - Gianluca Fulgenzi
- Experimental Pathology, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
| | - Maria Fiorella Tartaglione
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
| | - Laura Zingaretti
- Occupational Medicine Unit, Marche University Hospital, 60126 Ancona, Italy.
| | - Adriano Tagliabracci
- Department of Excellence of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy.
| | - Matteo Valentino
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
| | - Lory Santarelli
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
| | - Massimo Bracci
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
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Elexpuru-Zabaleta M, Lazzarini R, Tartaglione MF, Piva F, Ciarapica V, Marinelli Busilacchi E, Poloni A, Valentino M, Santarelli L, Bracci M. A 50 Hz magnetic field influences the viability of breast cancer cells 96 h after exposure. Mol Biol Rep 2023; 50:1005-1017. [PMID: 36378418 PMCID: PMC9889515 DOI: 10.1007/s11033-022-08069-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 10/31/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND The exposure of breast cancer to extremely low frequency magnetic fields (ELF-MFs) results in various biological responses. Some studies have suggested a possible cancer-enhancing effect, while others showed a possible therapeutic role. This study investigated the effects of in vitro exposure to 50 Hz ELF-MF for up to 24 h on the viability and cellular response of MDA-MB-231 and MCF-7 breast cancer cell lines and MCF-10A breast cell line. METHODS AND RESULTS The breast cell lines were exposed to 50 Hz ELF-MF at flux densities of 0.1 mT and 1.0 mT and were examined 96 h after the beginning of ELF-MF exposure. The duration of 50 Hz ELF-MF exposure influenced the cell viability and proliferation of both the tumor and nontumorigenic breast cell lines. In particular, short-term exposure (4-8 h, 0.1 mT and 1.0 mT) led to an increase in viability in breast cancer cells, while long and high exposure (24 h, 1.0 mT) led to a decrease in viability and proliferation in all cell lines. Cancer and normal breast cells exhibited different responses to ELF-MF. Mitochondrial membrane potential and reactive oxygen species (ROS) production were altered after ELF-MF exposure, suggesting that the mitochondria are a probable target of ELF-MF in breast cells. CONCLUSIONS The viability of breast cells in vitro is influenced by ELF-MF exposure at magnetic flux densities compatible with the limits for the general population and for workplace exposures. The effects are apparent after 96 h and are related to the ELF-MF exposure time.
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Affiliation(s)
- Maria Elexpuru-Zabaleta
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, 39011, Santander, Spain
| | - Raffaella Lazzarini
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Maria Fiorella Tartaglione
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Francesco Piva
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, 60131, Ancona, Italy
| | - Veronica Ciarapica
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Elena Marinelli Busilacchi
- Section of Hematology, Department of Clinical and Molecular Science, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Antonella Poloni
- Section of Hematology, Department of Clinical and Molecular Science, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Matteo Valentino
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Lory Santarelli
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy.
| | - Massimo Bracci
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy.
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14
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Abstract
The potential therapeutic uses of electromagnetic fields (EMF), part of the nonionizing radiation spectrum, increase with time. Among them, those considering the potential antitumor effects exerted by the Magnetic Fields (MFs), part of the EMF entity, have gained more and more interest. A recent review on this subject reports the MFs' effect on apoptosis of tumor cells as one of the most important breakthroughs. Apoptosis is considered a key mechanism regulating the genetic stability of cells and as such is considered of fundamental importance in cancer initiation and development. According to an atomic/sub-atomic analysis, based on quantum physics, of the complexity of biological life and the role played by oxygen and its radicals in cancer biology, a possible biophysical mechanism is described. The mechanism considers the influence of MFs on apoptosis through an effect on electron spin that is able to increase reactive oxygen species (ROS) concentration. Impacting on the delicate balance between ROS production and ROS elimination in tumor cells is considered a promising cancer therapy, affecting different biological processes, such as apoptosis and metastasis. An analysis in the literature, which allows correlation between MFs exposure characteristics and their influence on apoptosis and ROS concentration, supports the validity of the mechanism.
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Affiliation(s)
- Santi Tofani
- Department of Medical Physics, Ivrea Hospital - ASL Torino Nord-Ovest TO4, Ivrea Torino, Italy.,Department of Public Health Science, School of Medicine, University of Turin, Ivrea Torino, Italy
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15
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Alkis ME, Akdag MZ, Kandemir I. Influence of extremely low-frequency magnetic field on chemotherapy and electrochemotherapy efficacy in human Caco-2 colon cancer cells. Electromagn Biol Med 2022; 41:177-183. [PMID: 35261297 DOI: 10.1080/15368378.2022.2046047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Although chemotherapy (CT) has some adverse effects on healthy tissues and cells, it is widely preferred for treating patients with cancer. Drug resistance is one of the major impediments to successful cancer treatment. Electrochemotherapy (ECT) is a technique where cancer cells are rendered permeable to medications. Thanks to this permeability, the dose of the medication required for cancer treatment decreases. Our aim in this study is to examine the effects of short-term extremely low-frequency magnetic fields (ELF-MFs) on CT and ECT treatments in Caco-2 colon cancer cells. The Caco-2 cancer cells were treated with 5-fluorouracil (5-FU, 50 µM) and ECT (strength:1125 V/cm, duration:100 µs, frequency:1 Hz), alone as well as in combinations with ELF-MF (4 mT, 10 min). MTT assay was used to determine the efficacy of the treatments. Our findings in the study showed that ECT was much more successful than 5-FU treatment alone in Caco-2 colon cancer cells. Application of 4 mT ELF-MF after CT significantly increased the viability of the Caco-2 cancer cells compared to the CT group alone (p < .05). An increase in the viability of cells treated with 4 mT after ECT was observed compared to ECT alone. Similarly, there was an increase in the viability of cells treated with MF prior to ECT treatment (p < .05). The results show that exposure to ELF-MF at 4 mT flux density significantly reduces CT and ECT treatment efficacy in Caco-2 colon cancer cells.
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Affiliation(s)
- Mehmet Esref Alkis
- Department of Occupational Health and Safety, Faculty of Health Sciences, Muş Alparslan University, Muş, Turkey
| | - Mehmet Zulkuf Akdag
- Department of Biophysics, Medical School of Dicle University, Diyarbakir, Turkey
| | - Irtegun Kandemir
- Department of Medical Biology, Faculty of Medicine, Dicle University, Diyarbakır, Turkey
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16
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Cell Behavioral Changes after the Application of Magneto-Mechanical Activation to Normal and Cancer Cells. MAGNETOCHEMISTRY 2022. [DOI: 10.3390/magnetochemistry8020021] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In vitro cell exposure to nanoparticles, depending on the applied concentration, can help in the development of theranostic tools to better detect and treat human diseases. Recent studies have attempted to understand and exploit the impact of magnetic field-actuated internalized magnetic nanoparticles (MNPs) on the behavior of cancer cells. In this work, the viability rate of MNP’s-manipulated cancerous (MCF-7, MDA-MB-231) and non-cancerous (MCF-10A) cells was investigated in three different types of low-frequency magnetic fields: static, pulsed, and rotating field mode. In the non-cancerous cell line, the cell viability decreased mostly in cells with internalized MNPs and those treated with the pulsed field mode. In both cancer cell lines, the pulsed field mode was again the optimum magnetic field, which together with internalized MNPs caused a large decrease in cells’ viability (50–55% and 70% in MCF-7 and MDA-MB-231, respectively) while the static and rotating field modes maintained the viability at high levels. Finally, F-actin staining was used to observe the changes in the cytoskeleton and DAPI staining was performed to reveal the apoptotic alterations in cells’ nuclei before and after magneto-mechanical activation. Subsequently, reduced cell viability led to a loss of actin stress fibers and apoptotic nuclear changes in cancer cells subjected to MNPs triggered by a pulsed magnetic field.
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