Related Experiment Video

Updated: Jan 31, 2026

An Engineered Split-TET2 Enzyme for Chemical-inducible DNA Hydroxymethylation and Epigenetic Remodeling
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Glucose-Regulated TET2 Activity Links Cancer to Diabetes

Hari R Singh1, Stefan H Stricker2

  • 1Physics Department E14, Technical University Munich, 85748 Garching, Germany.

Trends in Cancer
|January 9, 2019
PubMed

Insights

Diabetes increases cancer risk. A new study reveals high glucose destabilizes TET2, a DNA repair enzyme, promoting cancer via an AMPK-dependent pathway.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Background:

  • Diabetes mellitus is a known risk factor for various cancers.
  • The molecular mechanisms linking diabetes and cancer remain incompletely understood.
  • Previous research suggests metabolic dysregulation in diabetes may influence tumorigenesis.

Discussion:

  • This study elucidates a direct molecular pathway connecting hyperglycemia and cancer development.
  • The findings highlight the role of glucose metabolism in DNA stability and cancer promotion.
  • The identified mechanism involves the destabilization of TET2, a crucial DNA demethylase.

Key Insights:

  • High glucose levels lead to the destabilization of TET2.
  • This destabilization is mediated by an AMP-activated protein kinase (AMPK)-dependent phosphoswitch.
  • The process promotes malignant transformation, establishing a clear molecular link between diabetes and cancer.

Outlook:

  • Targeting the TET2-AMPK pathway could offer novel therapeutic strategies for cancer prevention in diabetic patients.
  • Further research is warranted to explore the therapeutic potential of modulating glucose metabolism to inhibit cancer progression.
  • Understanding this link may lead to personalized cancer risk assessment for individuals with diabetes.

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