Warburg Effect due to Exposure to Different Types of Radiation

TL;DR

This study reveals that exposure to different radiation types can switch cancer cells between glycolysis and mitochondrial respiration, offering new insights into tumor metabolism regulation and potential therapeutic strategies.

Contribution

It demonstrates that radiation type influences cancer cell metabolism, showing the Warburg effect can be modulated by environmental radiation stimuli.

Findings

X-ray exposure enhances glycolysis in HeLa cells.

Carbon ion radiation increases mitochondrial respiration.

Radiation type determines metabolic pathway shifts in cancer cells.

Abstract

Cancer cells maintain a high level of aerobic glycolysis (the Warburg effect), which is associated with their rapid proliferation. Many studies have reported that the suppression of glycolysis and activation of oxidative phosphorylation can repress the growth of cancer cells through regulation of key regulators. Whether Warburg effect of cancer cells could be switched by some other environmental stimulus? Herein, we report an interesting phenomenon in which cells alternated between glycolysis and mitochondrial respiration depending on the type of radiation they were exposed to. We observed enhanced glycolysis and mitochondrial respiration in HeLa cells exposed to 2-Gy X-ray and 2-Gy carbon ion radiation, respectively. This discovery may provide novel insights for tumor therapy.