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A Reporter Platform to Study Therapy-Induced Senescence in Live Cancer Cells.

Jacinta van de Grint1, Mengqi Huang2, Ruben Sangers1

  • 1Department of Molecular Genetics, Oncode Institute, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, 3015 GD, the Netherlands.

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Summary

A new reporter platform enables real-time tracking of therapy-induced senescence (TIS) in cancer cells. This tool aids in understanding TIS and developing senolytics to combat cancer relapse and treatment side effects.

Keywords:
DNA damagelaminslivemonitoringreportersenescence

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Area of Science:

  • Oncology
  • Cell Biology
  • Biotechnology

Background:

  • Senescence is a cell cycle arrest state induced by stressors like chemotherapy.
  • Therapy-induced senescence (TIS) halts tumor growth but can promote relapse via SASP.
  • Lack of TIS biomarkers impedes understanding its role in cancer therapy and patient outcomes.

Purpose of the Study:

  • To develop a novel reporter platform for reliable detection and sorting of live senescent cancer cells.
  • To enable real-time monitoring of senescence induction and escape.
  • To facilitate high-content screening for drug discovery, including senolytics.

Main Methods:

  • Development of a lamin-based senescence reporter platform.
  • Utilizing live-cell imaging for real-time tracking of senescence.
  • Integrating markers like IL6 for SASP analysis.
  • High-content screening capabilities.

Main Results:

  • The platform reliably detects and sorts live senescent cancer cells.
  • Real-time imaging allows tracking of senescence dynamics and heterogeneity in treatment response.
  • The system supports marker integration for comprehensive analysis.

Conclusions:

  • The lamin-based reporter platform is a valuable tool for studying TIS.
  • It aids fundamental research into senescence and cancer therapy.
  • The platform supports drug discovery for senolytics and improved cancer treatments.