Effect of [10]-gingerol on [ca2+]i and cell death in human colorectal cancer cells

Chung-Yi Chen1, Yi-Wen Li, Soong-Yu Kuo

  • 1Department of Medical Technology, School of Medicine and Health Sciences, Fooyin University, Kaohsiung County 83101 Taiwan. xx377@mail.fy.edu.tw

Insights

[10]-gingerol, a compound found in ginger, triggers a rise in intracellular calcium (Ca2+) and cell death in colorectal cancer cells. This occurs through calcium release from the endoplasmic reticulum and influx via non-L-type channels.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Pharmacology

Background:

  • The effects of [10]-gingerol on intracellular calcium ([Ca2+]i) and cancer cell viability are not well understood.
  • Colorectal cancer remains a significant global health challenge, necessitating research into novel therapeutic agents.

Purpose of the Study:

  • To investigate the early signaling mechanisms of [10]-gingerol in human colorectal cancer cells.
  • To determine the impact of [10]-gingerol on intracellular calcium concentration and cell viability.

Main Methods:

  • Measurement of intracellular calcium ([Ca2+]i) using fluorescent indicators.
  • Experiments conducted in both calcium-containing and calcium-free media.
  • Assessment of calcium release from intracellular stores using thapsigargin.
  • Evaluation of cell viability following [10]-gingerol treatment at various concentrations.

Main Results:

  • [10]-gingerol induced a slow, sustained, and concentration-dependent rise in [Ca2+]i.
  • Calcium influx from extracellular sources contributed 38% to the [10]-gingerol-induced [Ca2+]i rise.
  • The [10]-gingerol-induced [Ca2+]i rise was partially dependent on endoplasmic reticulum calcium stores and insensitive to protein kinase C modulation.
  • [10]-gingerol treatment led to cell death in a concentration-dependent manner (10-100 mM).

Conclusions:

  • [10]-gingerol elevates intracellular calcium ([Ca2+]i) in SW480 colorectal cancer cells.
  • The mechanism involves calcium release from the endoplasmic reticulum and influx through non-L-type calcium channels.
  • [10]-gingerol exhibits cytotoxic effects on colorectal cancer cells, suggesting potential therapeutic applications.

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