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Developing Humanized Animal Models with Transplantable Human iPSC-Derived Cells.

Min Ma1, Jian-Yun Ge2, Yun-Zhong Nie3

  • 1Institute of Regenerative Medicine, and Department of Dermatology, Affiliated Hospital of Jiangsu University, Jiangsu University, 212001 Zhenjiang, Jiangsu, China.

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Humanized animal models offer improved disease modeling and drug screening. Advances in stem cell technology are creating more accurate human-like models for biomedical research.

Keywords:
human pluripotent stem cellshumanized animalimmunodeficient animalxenotransplantation

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Area of Science:

  • Biomedical Research
  • Translational Science
  • Animal Modeling

Background:

  • Traditional animal models exhibit significant physiological and immunological differences from humans, hindering translation of findings.
  • Existing humanized animal models face challenges with engraftment rates and physiological function, limiting their human-like accuracy.
  • Generating fully humanized animals is impeded by a lack of human transplantation resources and insufficient immune tolerance in recipients.

Purpose of the Study:

  • To summarize the current state of humanized animal models, focusing on hematopoietic/immune and liver systems.
  • To discuss strategies for generating humanized animal models, emphasizing human pluripotent stem cells as donor sources.
  • To review the advantages, limitations, and emerging trends in clinical and pharmaceutical applications of these models.

Main Methods:

  • Review of recent advances in gene editing and pluripotent stem cell-based xenotransplantation technologies.
  • Synthesis of laboratory expertise on humanized animal model generation and characterization.
  • Analysis of donor cell sources, particularly human pluripotent stem cells, for xenotransplantation.

Main Results:

  • Humanized animal models are advancing, with a focus on hematopoietic/immune and liver systems.
  • Pluripotent stem cell-based xenotransplantation offers a promising route to more accessible human-like models.
  • Progress is being made in overcoming challenges related to engraftment and immune tolerance.

Conclusions:

  • Humanized animal models are crucial for advancing disease modeling and drug screening.
  • Recent technological advancements are enabling the development of more accurate and reliable humanized models.
  • These improved models hold significant potential for future clinical and pharmaceutical applications.