Related Experiment Video

Updated: Jan 20, 2026

Telomerase Activity in the Various Regions of Mouse Brain: Non-Radioactive Telomerase Repeat Amplification Protocol TRAP Assay
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Telomerase Activity in the Various Regions of Mouse Brain: Non-Radioactive Telomerase Repeat Amplification Protocol TRAP Assay

Published on: September 2, 2014

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Switching Off Cancer-Causing Telomerase Using Small Molecules

Sefan Asamitsu1, Norifumi Shioda1, Hiroshi Sugiyama2

  • 1Department of Genomic Neurology, Institute of Molecular Embryology and Genetics (IMEG), Kumamoto University, Kumamoto 8600811, Japan.

Cell Chemical Biology
|August 17, 2019
PubMed

Insights

Small molecules targeting a repressive DNA motif effectively downregulate human telomerase reverse transcriptase (hTERT) in cancer cells. This downregulation halts telomerase activity, a key driver of malignancy, leading to cancer cell death.

Area of Science:

  • Oncology
  • Molecular Biology
  • Chemical Biology

Background:

  • Aberrant telomerase activity, driven by human telomerase reverse transcriptase (hTERT), is a characteristic of many malignant cancers.
  • Targeting telomerase offers a promising strategy for cancer therapy.

Purpose of the Study:

  • To investigate the potential of small molecules to downregulate hTERT expression.
  • To explore a novel therapeutic approach by targeting a repressive DNA motif on the hTERT gene promoter.

Main Methods:

  • Utilized small molecules designed to interact with a specific repressive DNA motif on the hTERT gene promoter.
  • Assessed the effect of these small molecules on hTERT expression and telomerase activity.
  • Evaluated the impact of hTERT downregulation on cancer cell viability.

Main Results:

  • Demonstrated successful downregulation of hTERT expression using targeted small molecules.
  • Showcased effective inhibition of telomerase activity through promoter targeting.
  • Confirmed significant cancer cell death upon hTERT downregulation.

Conclusions:

  • Small molecule-mediated targeting of the hTERT promoter is a viable strategy for cancer treatment.
  • Downregulation of hTERT effectively eliminates cancer cells by inhibiting telomerase.
  • This approach presents a novel therapeutic avenue for managing malignant cancers.

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