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Opposing Effects of Antidiabetic Interventions on Malignant Growth and Metastasis

Matthias H Tschöp1, Michael Stumvoll2, Michael Ristow3

  • 1Institute for Diabetes and Obesity, Helmholtz Diabetes Center at Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany; Division of Metabolic Diseases, Department of Medicine, Technische Universität München, 80333 Munich, Germany; German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany.

Cell Metabolism
|June 16, 2016
PubMed

Insights

Type 2 diabetes treatments can impact cancer. Incretin-related DPP4 inhibitors, used for diabetes, may increase cancer metastasis by activating the NRF2 pathway and reducing oxidative stress.

Area of Science:

  • Oncology
  • Endocrinology
  • Molecular Biology

Background:

  • Type 2 diabetes (T2D) is linked to higher cancer risk.
  • Some diabetes treatments, like exercise and metformin, lower cancer incidence.
  • Incretin-based therapies are a common T2D treatment approach.

Purpose of the Study:

  • To investigate the effect of incretin-related DPP4 inhibitors on cancer metastasis.
  • To explore the role of the NRF2 pathway in mediating these effects.

Main Methods:

  • Analysis of a recent publication on DPP4 inhibitors and cancer.
  • Examination of the activation of the antioxidant transcription factor NRF2.
  • Assessment of reactive oxygen species (ROS) levels.

Main Results:

  • DPP4 inhibitors were shown to increase the metastatic capacity of cancer cells.
  • This effect was linked to the activation of the NRF2 pathway.
  • NRF2 activation led to decreased levels of reactive oxygen species (ROS).

Conclusions:

  • Incretin-related DPP4 inhibitors may promote cancer metastasis.
  • The NRF2 pathway and ROS reduction are key mechanisms involved.
  • This highlights a potential adverse effect of certain diabetes medications on cancer progression.

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