Aspartame-induced apoptosis in PC12 cells

Area of Science:

• Cell Biology
• Toxicology
• Biochemistry

Background:

• Aspartame, a widely used artificial sweetener, has raised safety concerns despite extensive research.
• Understanding the cellular impact of low-dose sweeteners is crucial for public health.

Purpose of the Study:

• To investigate the effects of aspartame on apoptosis in a cellular model.
• To elucidate the mechanism of aspartame-induced apoptosis and its impact on apoptotic factors.

Main Methods:

• Utilized a PC12 cell system to study aspartame's effects.
• Employed Western blotting and RT-PCR to analyze apoptotic factors.
• Examined the expression of cytochrome c, apoptosis-inducing factor, and caspases.

Main Results:

• Aspartame induced apoptosis in PC12 cells in a dose-dependent manner.
• Aspartame exposure significantly increased the expression of caspases 8 and 9.
• Elevated levels of cytochrome c were observed following aspartame treatment.

Conclusions:

• Aspartame triggers apoptosis in PC12 cells.
• The primary mechanism involves the mitochondrial pathway, potentially related to oxygen toxicity.
• Further research is warranted on the physiological effects of artificial sweeteners.