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DTR-mediated conditional cell ablation-Progress and challenges.

Christiane Ruedl1, Steffen Jung2

  • 1School of Biological Sciences, Nanyang Technological University, Singapore, Singapore.

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|July 6, 2018
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Summary

The diphtheria toxin receptor (DTR) method enables precise cell ablation in mice, aiding research into cell functions. This review covers DTR strategies, challenges, and applications, particularly for myeloid cells.

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Cell ablationDTRMyeloid cellsTransgenic micecre-loxP

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Area of Science:

  • Immunology
  • Cell Biology
  • Physiology

Background:

  • Cell ablation is crucial for understanding cell functions in health and disease.
  • The diphtheria toxin receptor (DTR) system is a widely used transgenic method for targeted cell ablation in animal models.
  • This approach allows for experimental manipulation of specific cell populations.

Purpose of the Study:

  • To review the technical aspects of the DTR cell ablation strategy.
  • To discuss the strengths, limitations, and future directions for DTR applications.
  • To highlight the utility of DTR for studying murine myeloid cell functions in vivo.

Main Methods:

  • Transgenic expression of the primate diphtheria toxin receptor (DTR) in specific murine cell types.
  • Administration of diphtheria toxin to induce selective cell ablation.
  • Analysis of physiological and pathophysiological consequences of cell depletion.

Main Results:

  • The DTR approach has provided significant insights into the roles of various cell types.
  • Technical challenges and potential pitfalls of the DTR system have been identified.
  • Recent advancements offer strategies to refine DTR-mediated cell ablation.

Conclusions:

  • The DTR system is a powerful tool for dissecting cell-specific functions in vivo.
  • Addressing current limitations can further enhance the precision and applicability of DTR technology.
  • This method is particularly valuable for investigating the complex roles of myeloid cells.