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Mad1 suppresses bladder cancer cell proliferation by inhibiting human telomerase reverse transcriptase transcription

Lin Zou1, Penghui Zhang, Chunli Luo

  • 1Faculty of Laboratory Medicine at Chongqing University of Medical Sciences, Key Laboratory of Laboratory Medical Diagnosis of Education Ministry, Chongqing, China.

Urology
|June 13, 2006
PubMed
Abstract

Insights

Mitosis arrest deficiency 1 (Mad1) inhibits bladder cancer cell proliferation by suppressing human telomerase reverse transcriptase (hTERT) transcription and telomerase activity. Mad1 shows potential for bladder cancer growth inhibition.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Bladder cancer remains a significant health concern.
  • Understanding novel therapeutic targets is crucial for effective treatment.

Purpose of the Study:

  • To investigate the effects of Mad1 on bladder cancer cell proliferation.
  • To elucidate the underlying mechanisms involving hTERT and telomerase activity.

Main Methods:

  • Utilized MTT assay, flow cytometry, and luciferase assays.
  • Assessed hTERT expression and telomerase activity via TRAP-ELISA and qRT-PCR.
  • Evaluated effects in vitro (T24, EJ cells) and in vivo (xenograft models).

Main Results:

  • Mad1 significantly inhibited bladder cancer cell proliferation.
  • Mad1 induced G0/G1 cell cycle arrest.
  • Mad1 downregulated hTERT transcription, expression, and telomerase activity in cells and tumors.

Conclusions:

  • Mad1 inhibits bladder cancer growth by targeting hTERT transcription and telomerase activity.
  • Mad1 presents a potential therapeutic candidate for bladder cancer treatment.

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