Mitochondrial Dysfunction and Induction of Apoptosis in Hepatocellular Carcinoma and Cholangiocarcinoma Cell Lines by

Reem J Abdualmjid1, Consolato M Sergi1,2

  • 1Department of Lab. Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2B7, Canada.

Insights

Thymoquinone (TQ) inhibits liver cancer cell growth and induces apoptosis. This natural compound shows significant therapeutic potential against hepatocellular carcinoma and cholangiocarcinoma.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Background:

  • Hepatocellular carcinoma (HCC) and cholangiocarcinoma (CCA) are primary liver cancers with limited treatment options.
  • Thymoquinone (TQ), derived from Nigella sativa, exhibits anti-neoplastic properties.
  • Investigating TQ's effects on liver cancer cell mitochondria and apoptosis is crucial for therapeutic development.

Approach:

  • TQ was applied to hepatocellular carcinoma (HepG2) and cholangiocarcinoma (HuCCT1) cell lines at varying concentrations and durations.
  • Anti-proliferative effects were assessed using the MTS assay.
  • Cell cycle progression, apoptosis, and mitochondrial viability (morphology, membrane potential) were analyzed.

Key Points:

  • TQ demonstrated dose- and time-dependent inhibition of HepG2 and HuCCT1 cell proliferation.
  • TQ induced cell cycle arrest in both cancer cell lines.
  • TQ triggered apoptosis and affected mitochondrial viability in liver cancer cells.

Conclusions:

  • Thymoquinone exhibits significant anti-tumor activity against hepatocellular carcinoma and cholangiocarcinoma cells.
  • TQ induces cell cycle arrest and apoptosis, highlighting its therapeutic potential.
  • Further research into TQ as an anti-cancer agent for liver tumors is warranted.

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