Telomerase in Cancer Therapeutics

Silvia Siteni1, Anthony Grichuk1, Jerry W Shay2

  • 1University of Texas Southwestern Medical Center, Department of Cell Biology, Dallas, Texas 75390, USA jerry.shay@utsouthwestern.edu.

Insights

Telomerase, reactivated in most cancers, is a key oncology target. This review covers diverse preclinical and clinical strategies, including inhibitors and vaccines, with some nearing late-stage development.

Area of Science:

  • Oncology
  • Molecular Biology
  • Drug Development

Background:

  • Telomerase is typically silent in normal human tissues but reactivated in most human cancers.
  • This reactivation makes telomerase a nearly universal target for cancer therapy.

Purpose of the Study:

  • To review preclinical and clinical advancements in targeting telomerase for cancer treatment.
  • To discuss various therapeutic approaches and their pros and cons.

Main Methods:

  • Review of direct telomerase inhibitors.
  • Analysis of G-quadruplex DNA-interacting ligands.
  • Evaluation of telomerase-based vaccine platforms.
  • Assessment of telomerase promoter-driven attenuated viruses.
  • Examination of telomerase-mediated telomere targeting strategies.

Main Results:

  • Imetelstat, a telomerase inhibitor, has received FDA approval.
  • Several other telomerase-targeting approaches are in late-stage clinical development.
  • The review details the advantages and disadvantages of major therapeutic strategies.

Conclusions:

  • Targeting telomerase remains a promising strategy in oncology.
  • Diverse therapeutic modalities are advancing, offering new hope for cancer patients.
  • Continued research and development are crucial for optimizing telomerase-targeted therapies.

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