Electromagnetic field-induced adaptive response in Schwann cells through DNA methylation, histone deacetylation, and oxidative stress

Abstract

Overview

Schwannomas, benign tumors of the peripheral nervous system, originate from the transformation of Schwann cells (SCs). These tumors are generally associated with alterations in the neurofibromin type 2 gene, which encodes the oncosuppressor protein merlin, a cytoskeleton-associated member of the ezrin-radixin-moesin family. Despite this information, the specific mechanisms leading to schwannoma onset and progression are not fully understood, and environmental factors may play a significant role.

Findings

• Exposure to electromagnetic fields (EMF), commonly produced by household electrical devices, has been strongly suggested—primarily through epidemiological data—as a possible cause for SC transformation, although the precise cellular mechanisms remain insufficiently clarified.
• Recent in vitro studies indicated that SCs exposed to EMF (0.1 T, 50 Hz, 10 min) demonstrate alterations in proliferation and migration abilities.
• This study employed a similar experimental model to examine the involvement of epigenetic mechanisms—including DNA methylation and histone deacetylation—in Schwann cell adaptation to EMF, in addition to the occurrence of hypoxic alterations following exposure.
• The results reveal a range of environmentally-induced changes leading SCs toward a less physiological state, which may be of pathological significance for SC differentiation and the development of schwannoma.

Conclusion

The data indicate that EMF exposure initiates significant changes in Schwann cells, mediated through DNA methylation, histone deacetylation, and oxidative stress, pointing toward a mechanistic link between environmental EMF exposure and increased risk of schwannoma development through epigenetic and cellular adaptation processes.