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Related Experiment Video

Updated: Dec 26, 2025

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Transchromosomic technology for genomically humanized animals.

Takashi Moriwaki1, Satoshi Abe2, Mitsuo Oshimura3

  • 1Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, 86 Nishi-cho, Yonago, Tottori, 683-8503, Japan.

Experimental Cell Research
|March 7, 2020
PubMed
Summary

Genomically humanized animals are crucial for disease modeling. Transchromosomic (Tc) techniques using artificial chromosomes overcome limitations of conventional methods, enabling complex humanized models for research and drug development.

Keywords:
Chromosome transferHuman artificial chromosomeHuman chromosome fragmentHumanized animalMouse artificial chromosomeTranschromosomic animal

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Area of Science:

  • Biomedical Research
  • Genetics
  • Animal Models

Background:

  • Conventional transgenic technologies have limitations for creating humanized animal models.
  • Gene delivery vectors like viruses and plasmids have restricted gene capacity and unstable transgene expression.

Purpose of the Study:

  • To review the development and applications of transchromosomic (Tc) animals.
  • To highlight how Tc techniques overcome limitations in creating advanced humanized animal models.

Main Methods:

  • Utilizing mammalian artificial chromosomes, including human and mouse artificial chromosomes.
  • Employing transchromosomic (Tc) techniques to transfer large genomic loci.

Main Results:

  • Tc techniques overcome gene capacity and stability issues of conventional transgenic methods.
  • Tc animals can carry multiple genes or megabase-sized genomic loci with regulatory elements.

Conclusions:

  • Transchromosomic (Tc) animals represent a significant advancement for humanized animal models.
  • These models are valuable for human disease research, drug development, and biomedical applications.