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Replicative Cell Senescence

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Related Experiment Video

Updated: Jun 11, 2026

Utilizing Murine Inducible Telomerase Alleles in the Studies of Tissue Degeneration/Regeneration and Cancer

Utilizing Murine Inducible Telomerase Alleles in the Studies of Tissue Degeneration/Regeneration and Cancer

Published on: April 13, 2015

Development of potential anticancer agents that target the telomere sequence.

Myunji Park¹, Thomas C Bruice

¹Department of Chemistry and Biochemistry, University of Califonia at Santa Barbara, 93106, USA.

Bioorganic & Medicinal Chemistry Letters

|July 8, 2010

Summary

Deoxyribonucleic guanidine (DNG) shows enhanced binding to telomeres, offering a potential strategy against cancer cell immortality. DNG

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Area of Science:

Biochemistry
Molecular Biology
Cancer Research

Background:

Cancer cell immortality is linked to high telomerase enzyme activity, which maintains telomere sequences.
Human telomeric DNA comprises repetitive sequences of d(5'-TTAGGG-3').
Telomerase is a key target for anti-cancer therapies.

Purpose of the Study:

To investigate the potential of Deoxyribonucleic Guanidine (DNG) as a telomere-binding agent.
To evaluate the binding affinity of DNG analogs to telomeric sequences compared to DNA.
To explore DNG's potential in inhibiting telomerase activity.

Main Methods:

Synthesis of DNG hexamer and dodecamer analogs complementary to the telomere sequence.
Comparative binding studies of DNG and DNA to telomeric sequences.
Assessment of DNG binding affinity to RNA.

Main Results:

DNG hexamer binding to telomeres was favored over DNA by 10(2.5)-fold.
DNG dodecamer binding to mismatched DNA was favored by 10(5)-fold.
DNG demonstrated a higher binding affinity for RNA compared to DNA.

Conclusions:

DNG analogs exhibit significantly stronger binding to telomeric sequences than DNA.
DNG's preferential binding to RNA suggests a potential mechanism for telomerase inhibition.
A stable complementary complex of DNG with RNA at the telomerase active site could offer a novel anti-cancer therapeutic strategy.