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Updated: Jun 30, 2026

Enhancement of Apoptotic and Autophagic Induction by a Novel Synthetic C-1 Analogue of 7-deoxypancratistatin in Human Breast Adenocarcinoma and Neuroblastoma Cells with Tamoxifen
19:44

Enhancement of Apoptotic and Autophagic Induction by a Novel Synthetic C-1 Analogue of 7-deoxypancratistatin in Human Breast Adenocarcinoma and Neuroblastoma Cells with Tamoxifen

Published on: May 30, 2012

Novel caspase-suicide proteins for tamoxifen-inducible apoptosis

Yuanyuan Chu1, Niklas Senghaas, Reinhard W Köster

  • 1Helmholtz Zentrum München, German Research Center for Environmental Health, Institute for Developmental Genetics, 85764 Munich/Neuherberg, Germany.

Genesis (New York, N.Y. : 2000)
|September 20, 2008
PubMed

Insights

Researchers created a new inducible apoptosis system using Caspase fusion proteins activated by 4-OH-tamoxifen. This tool enables precise cell ablation for disease modeling and developmental studies in various organisms.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Developmental Biology

Background:

  • Apoptosis, or programmed cell death, is crucial for development and tissue homeostasis.
  • Existing methods for inducing apoptosis often lack precise temporal or spatial control.
  • Targeted cell ablation is essential for creating accurate disease models and studying biological processes.

Purpose of the Study:

  • To develop a novel system for inducible and targeted apoptosis using a modified estrogen receptor.
  • To create Caspase fusion proteins that can be activated by a specific small molecule ligand.
  • To validate the efficacy of this system in various cell types and model organisms.

Main Methods:

  • Construction of Caspase fusion proteins with a mutant estrogen receptor ligand binding domain (ER(T2)).
  • Treatment of human, murine, and zebrafish cells with the synthetic ligand 4-OH-tamoxifen.
  • Assessment of apoptotic cell death induction and specificity.

Main Results:

  • Caspase-ER(T2) fusion proteins were specifically activated by 4-OH-tamoxifen.
  • Rapid induction of apoptotic cell death was observed in human, murine, and zebrafish cells.
  • The system demonstrated high specificity and efficiency in targeted cell ablation.

Conclusions:

  • The novel Caspase-ER(T2) fusion protein system provides a powerful tool for inducible apoptosis.
  • This technology facilitates the generation of sophisticated disease models.
  • It is highly valuable for research in developmental biology and regeneration studies.

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