Extremely low frequency (ELF) magnetic fields and apoptosis: a review
M T Santini1, A Ferrante, G Rainaldi
1Dipartimento di Ematologia, Oncologia e Medicina Molecolare, Istituto Superiore di Sanità, Rome, Italy. santini@iss.it
International Journal of Radiation Biology
|June 21, 2005
Summary
Extremely low frequency magnetic fields may influence cancer development, particularly childhood leukaemia. This review explores how these fields affect apoptosis, a key cell death process, and discusses potential biophysical mechanisms.
Area of Science:
- Biophysics
- Cell Biology
- Oncology
Background:
- Growing evidence links extremely low frequency magnetic fields (ELF-MFs) to increased tumour risk, especially childhood leukaemia.
- Apoptosis, or programmed cell death, is increasingly recognized as a critical factor in tumour development and progression.
Purpose of the Study:
- To review the process of apoptosis.
- To examine studies investigating apoptosis in cells exposed to magnetic fields.
- To describe potential biophysical mechanisms underlying magnetic field-induced changes in apoptosis.
Main Methods:
- Literature review of selected papers.
- Analysis of experimental data on apoptosis in cells exposed to magnetic fields.
- Discussion of biophysical models for magnetic field-cell interactions.
Main Results:
- The literature suggests that magnetic fields can alter apoptosis in exposed cells across various experimental conditions.
- The role of ions, particularly calcium (Ca2+), in apoptosis is highlighted.
- A model is proposed to explain magnetic field effects on apoptosis, integrating diverse experimental findings.
Conclusions:
- Magnetic fields appear to influence the apoptotic process in cells.
- Calcium ion dynamics may be a key mediator in magnetic field-induced apoptosis changes.
- Further research is needed to fully elucidate the mechanisms of ELF-MFs on cellular apoptosis and cancer risk.
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