Related Experiment Video
Updated: Feb 18, 2026
07:22
Author Spotlight: Optimizing iPSC Differentiation for Efficient Production to Generate Kidney Organoids
Published on: September 1, 2023
3.7K
Generation of interspecies limited chimeric nephrons using a conditional nephron progenitor cell replacement system
S Yamanaka1, S Tajiri1,2, T Fujimoto1,2
1Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, 1058461, Japan.
Nature Communications
|November 25, 2017
Summary
Researchers developed a novel method to generate artificial nephrons in animal fetuses. This technique precisely replaces native kidney progenitor cells with donor cells, enabling in vivo organ regeneration.
Area of Science:
- Developmental biology
- Regenerative medicine
- Bioengineering
Background:
- Animal fetuses and embryos hold potential for generating human organs.
- Progenitor cells offer a safe and available source for regenerative organs.
- Generating organs from exogenous progenitors in developing fetuses remains a challenge.
Purpose of the Study:
- To establish a system for precise donor cell injection and native cell elimination in the developing kidney.
- To achieve in vivo differentiation of transplanted progenitor cells into functional nephrons.
- To explore the potential for interspecies organ regeneration.
Main Methods:
- Developed a system for time- and tissue-specific elimination of native nephron progenitor cells (NPCs).
- Precisely injected donor cells into the nephrogenic zone of animal fetuses.
- Utilized Six2+ NPCs for targeted removal within the nephrogenic niche.
Main Results:
- Successfully removed Six2+ NPCs and replaced them with transplanted donor cells.
- Transplanted NPCs differentiated into mature glomeruli and renal tubules.
- Observed blood flow in the generated artificial nephrons following in vivo transplantation.
- Demonstrated the ability to generate artificial nephrons using NPCs from different species.
Conclusions:
- The established technique enables in vivo differentiation of progenitor cells into functional nephrons.
- This method provides a platform for studying nephrogenesis and organ regeneration.
- The findings open possibilities for interspecies regenerative medicine approaches.
