[D-limonene induces apoptosis of gastric cancer cells]

Xiao-guang Lu1, Bing-an Feng, Li-bin Zhan

  • 1Department of General Surgery, Fourth Hospital of Dalian Medical University, Dalian 116001, China.

Abstract

Insights

D-limonene induces apoptosis in BGC-823 gastric cancer cells. This natural compound triggers cell death by increasing p53 and decreasing bcl-2 protein expression, offering potential therapeutic insights.

Area of Science:

  • Oncology
  • Molecular Biology
  • Natural Product Chemistry

Background:

  • Gastric cancer remains a significant global health challenge.
  • D-limonene, a natural cyclic monoterpene, is found in citrus oils and exhibits potential anti-cancer properties.
  • Understanding the mechanisms of D-limonene's action is crucial for developing novel therapeutic strategies.

Purpose of the Study:

  • To investigate the apoptosis-inducing effects of D-limonene on BGC-823 human gastric cancer cells.
  • To elucidate the molecular mechanisms underlying D-limonene-induced cell death.
  • To assess the impact of D-limonene on key apoptosis-related proteins.

Main Methods:

  • Cell viability was assessed using MTT assays.
  • Apoptosis was quantified using flow cytometry and electron microscopy.
  • Expression levels of p53 and bcl-2 proteins were determined via immunohistochemical methods.

Main Results:

  • D-limonene treatment led to the formation of apoptotic bodies in BGC-823 cells in a dose- and time-dependent manner.
  • Significant alterations in apoptosis markers were observed, including increased p53 protein expression.
  • A notable decrease in bcl-2 protein expression was detected in D-limonene-treated cells compared to controls.

Conclusions:

  • D-limonene effectively induces apoptosis in BGC-823 gastric cancer cells.
  • The cytotoxic effect is mediated through the modulation of p53 and bcl-2 protein expression.
  • D-limonene demonstrates potential as a chemotherapeutic agent for gastric cancer.