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Updated: Aug 9, 2026

Utilizing Murine Inducible Telomerase Alleles in the Studies of Tissue Degeneration/Regeneration and Cancer
Published on: April 13, 2015
Telomerase activation. One step on the road to cancer?
1Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. cgreider@jhmi.edu
Abstract:
Ever since the discovery that telomeres are short in cancer cells and telomerase is activated in immortal cells, telomerase has been an oncogene wannabe. Oncogenes have been the glamour genes of molecular biology for 20 years, garnering flashy headlines and name recognition. More recently, tumor-suppressor genes have joined oncogenes on center stage. Recent evidence has shown that MYC upregulates the catalytic subunit of telomerase, TERT, and that TERT cooperates with HPV E7 in cell immortalization. This evidence now supports the placement of telomerase among the cancer gene elite.
Insights
Telomerase, an enzyme crucial for cell immortality, is now recognized as a key player in cancer. Research shows MYC and TERT cooperate with HPV E7, solidifying telomerase's role among elite cancer genes.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Telomeres shorten in cancer cells, while telomerase is active in immortal cells.
- Telomerase has long been investigated for its potential role in cancer.
- Recent focus has shifted to oncogenes and tumor-suppressor genes in cancer research.
Purpose of the Study:
- To investigate the role of telomerase in cancer.
- To explore the relationship between MYC, TERT, and HPV E7 in cell immortalization.
- To establish telomerase as a significant cancer-associated factor.
Main Methods:
- Analysis of gene expression and function.
- Investigating the upregulation of TERT by MYC.
- Studying the cooperative effects of TERT and HPV E7 in cell immortalization.
Main Results:
- MYC was found to upregulate the catalytic subunit of telomerase, TERT.
- TERT demonstrated cooperation with HPV E7 in achieving cell immortalization.
- These findings support telomerase's classification among critical cancer genes.
Conclusions:
- Telomerase plays a significant role in cancer development and progression.
- The interplay between MYC, TERT, and HPV E7 is crucial for cellular immortalization.
- Telomerase is now considered a key factor within the elite group of cancer genes.
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