Metabolomic and gene networks approaches reveal the role of mitochondrial membrane proteins in response of human melanoma cells to THz radiation
Abstract
Overview
Terahertz (THz) radiation, propelled by recent technological advances, is under scientific scrutiny for its biological effects, which remain largely undefined. This study investigates the influence of 2.3 THz radiation on human melanoma SK-MEL-28 cells through metabolomic screening and gene network analysis.
Key Findings
- ✔ Significant Metabolic Changes: Exposure to THz radiation caused marked alterations in forty distinct metabolites, predominantly linked to purine and pyrimidine metabolic pathways.
- ✔ Lipid Impact: Critical membrane lipids, such as ceramides and phosphatidylcholines, were notably affected by radiation exposure.
- ✔ Gene Network Insights: Reconstruction of gene networks highlighted mitochondrial membrane proteins, especially those of the respiratory chain, ATP synthase, and lipid rafts, as regulatory hubs governing enzymes that process the altered metabolites.
- ✔ Membrane Structure Disruption: THz radiation induces a reversible disturbance of the lipid raft macrostructure, modulating mitochondrial transport mechanisms yet preserving protein structural integrity.
- ✔ Specificity to THz: The observed metabolic effects were unique to THz exposure and not attributable to heating, as evidenced by distinct cellular responses under infrared controls.
Conclusion
This research demonstrates a clear biological response in human melanoma cells to THz electromagnetic field exposure, implicating mitochondrial membrane elements in the process. The findings underscore the imperative to assess EMF safety rigorously, as even non-thermal THz radiation can disrupt fundamental cellular structures and metabolic pathways.