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[Effect of hTERT antisense oligodeoxynucleotide on telomerase activity in bladder cancer cells in vitro]

Xiao-dong Gao1, Yi-rong Chen

  • 1Department of Urology, Lanzhou General Hospital of Lanzhou Command, Lanzhou 730050, China. gxd58038@yahoo.com.cn

Nan Fang Yi Ke Da Xue Xue Bao = Journal of Southern Medical University
|April 29, 2010
PubMed
Abstract

Insights

This study shows that antisense phosphorothioate oligodeoxynucleotide (AS PS-ODN) effectively reduces telomerase activity in bladder cancer cells by targeting hTERT expression.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Context:

  • Telomerase is a key enzyme in cancer development and progression.
  • Bladder cancer exhibits high telomerase activity, making it a therapeutic target.
  • Antisense technology offers a targeted approach to inhibit specific gene expression.

Purpose:

  • To evaluate the efficacy of hTERT antisense oligodeoxynucleotide (AS PS-ODN) in inhibiting telomerase activity.
  • To assess the impact of AS PS-ODN on hTERT mRNA and protein levels in bladder cancer cells.

Summary:

  • AS PS-ODN was synthesized and its effect on telomerase activity was measured using a PCR ELISA kit.
  • hTERT mRNA and protein expression were analyzed via RT-PCR, immunohistochemistry, and flow cytometry.
  • Treatment with AS PS-ODN led to a significant decrease in telomerase activity, hTERT mRNA, and protein levels in T24 bladder cancer cells within 72 hours.

Impact:

  • Demonstrates the potential of AS PS-ODN as a therapeutic agent for bladder cancer.
  • Provides a molecular mechanism for telomerase inhibition in cancer cells.
  • Highlights the role of hTERT downregulation in controlling cancer cell proliferation.

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