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Microwave radiation induces neuronal autophagy through miR-30a-5p/AMPKα2 signal pathway

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Authors not listed · 2022

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Exposing rat hippocampal neurons and PC12 neuron-like cells to 30 mW/cm2 microwaves down-regulated miR-30a and activated autophagy, and the authors concluded that microwave radiation promotes neuronal autophagy through the miR-30a/AMPKα2 pathway.

Plain English Summary

Summary written for general audiences

Researchers exposed rat hippocampal neurons and PC12-derived neuron-like cells to 30 mW/cm2 microwaves, which down-regulated miR-30a and activated autophagy in vivo and in vitro. Bioinformatics analysis identified several potential miR-30a targets, and the team selected Prkaa2 for further study because prior work linked microwave radiation to abnormal energy metabolism in neurons. Dual-luciferase assays confirmed Prkaa2 as a downstream gene of miR-30a, and microwave exposure increased AMPKα2 expression and AMPKα Thr172 phosphorylation, while miR-30a mimics reversed these changes and blocked autophagy.

Why This Matters

When miR-30a was overexpressed in PC12 cells, it abolished the autophagy triggered by microwave exposure and prevented the radiation-induced rise in AMPKα2 and its phosphorylation. The authors noted that their earlier work had shown 2856 MHz microwave radiation damaged synaptic plasticity and activated autophagy in neurons.

Cite This Study
Unknown (2022). Microwave radiation induces neuronal autophagy through miR-30a-5p/AMPKα2 signal pathway.
Show BibTeX
@article{microwave_radiation_induces_neuronal_autophagy_through_mir_30a_5pampk2_signal_pathway_ce2814,
  author = {Unknown},
  title = {Microwave radiation induces neuronal autophagy through miR-30a-5p/AMPKα2 signal pathway},
  year = {2022},
  
  
}

Quick Questions About This Study

The study exposed rat hippocampal neurons and PC12-derived neuron-like cells to 30 mW/cm2 microwaves.
Microwave exposure down-regulated miR-30a and activated autophagy in both living animals and cultured cells.
Prkaa2, which encodes the AMPKα2 subunit, was confirmed as a downstream target of miR-30a by a dual-luciferase reporter assay.
Overexpressing miR-30a in PC12 cells blocked the microwave-induced increase in AMPKα2 and its phosphorylation and prevented autophagy activation.
The authors concluded that microwave radiation promotes neuronal autophagy through the miR-30a/AMPKα2 signaling pathway.