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Related Concept Videos

Tissue Transplantation01:24

Tissue Transplantation

Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...

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Related Experiment Video

Updated: Jun 21, 2026

Establishing Organoids from Human Tooth as a Powerful Tool Toward Mechanistic Research and Regenerative Therapy
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Fully functional bioengineered tooth replacement as an organ replacement therapy.

Etsuko Ikeda1, Ritsuko Morita, Kazuhisa Nakao

  • 1Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan.

Proceedings of the National Academy of Sciences of the United States of America
|August 12, 2009
PubMed
Summary
This summary is machine-generated.

Researchers successfully bioengineered a fully functioning tooth replacement in mice. This breakthrough in regenerative medicine demonstrates the potential for bioengineered organ therapies to restore function after damage or loss.

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Area of Science:

  • Regenerative Medicine
  • Bioengineering
  • Oral and Maxillofacial Tissues

Background:

  • Current regenerative therapies draw from embryonic development, stem cell biology, and tissue engineering.
  • The goal is to create bioengineered organs that integrate with surrounding tissues to replace damaged or lost organs.

Purpose of the Study:

  • To report the successful transplantation of a bioengineered tooth germ for full tooth replacement in an adult mouse.
  • To establish a model for future organ replacement therapies.

Main Methods:

  • Transplantation of a bioengineered tooth germ into the alveolar bone of a mouse with a lost tooth.
  • Evaluation of the bioengineered tooth's structure, function, and integration with surrounding oral tissues.

Main Results:

  • The bioengineered tooth erupted and occluded successfully.
  • The tooth exhibited correct structure, appropriate mineralized tissue hardness for mastication, and responded to stimuli like mechanical stress and pain.
  • The replacement tooth functioned in cooperation with other oral and maxillofacial tissues.

Conclusions:

  • This study represents a significant advancement in regenerative therapies.
  • The successful bioengineered tooth replacement highlights the potential for this technology in future organ replacement strategies.