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Cytotoxicity, radiosensitization, and chemosensitization of tumor cells by 2-deoxy-D-glucose in vitro

B S Dwarakanath1

  • 1Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, New Delhi, India.

Journal of Cancer Research and Therapeutics
|December 17, 2009
PubMed

Insights

2-deoxy-D-glucose (2-DG) targets cancer cell metabolism by inhibiting glucose uptake and ATP production. This metabolic inhibitor shows promise as a therapeutic agent or adjuvant in cancer treatment, enhancing chemotherapy and radiotherapy efficacy.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Cancer Research

Background:

  • 2-deoxy-D-glucose (2-DG) is a glucose analog investigated for its metabolic inhibitory effects.
  • It targets glucose transport and ATP production, impacting cellular energy.
  • 2-DG also influences N-linked glycosylation, protein folding, gene expression, and signaling pathways.

Purpose of the Study:

  • To explore the multifaceted effects of 2-DG on cellular metabolism and function.
  • To evaluate the potential of 2-DG as a therapeutic agent or adjuvant in cancer treatment.
  • To understand 2-DG's role in sensitizing tumor cells to existing therapies.

Main Methods:

  • Investigating 2-DG's impact on glucose metabolism and ATP production.
  • Analyzing 2-DG's effects on N-linked glycosylation and the unfolded protein response.
  • Evaluating cytotoxic effects (inhibition of proliferation, induction of apoptosis) in tumor cells.
  • Assessing 2-DG's synergistic effects with ionizing radiation and chemotherapy.

Main Results:

  • 2-DG depletes cellular energy by inhibiting glycolysis.
  • It induces unfolded protein responses and alters gene expression and protein phosphorylation.
  • Cytotoxic effects, including proliferation inhibition and apoptosis induction, were observed in various tumor cells.
  • 2-DG sensitizes tumor cells to radiotherapy and chemotherapy, enhancing treatment outcomes.

Conclusions:

  • 2-DG exhibits significant anti-cancer properties by targeting cellular metabolism.
  • Its ability to induce apoptosis and inhibit proliferation makes it a potential therapeutic agent.
  • 2-DG enhances the efficacy of conventional cancer treatments like radiation and chemotherapy.
  • Further development of 2-DG as a therapeutic or adjuvant is warranted.

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