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Updated: Jun 5, 2026
Bone Marrow Transplantation Procedures in Mice to Study Clonal Hematopoiesis
Published on: May 26, 2021
Kidney preservation by bone marrow cell transplantation in hereditary nephropathy
Brian A Yeagy1, Frank Harrison, Marie-Claire Gubler
1Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, California, USA.
Abstract:
The prospect of cell-based therapy for kidney disease remains controversial despite its immense promise. We had previously shown that transplanting bone marrow and hematopoietic stem cells could generate renal cells and lead to the preservation of kidney function in a mouse model for cystinosis (Ctns(-/-)) that develops chronic kidney injury, 4 months post transplantation. Here, we determined the long-term effects of bone marrow stem cell transplantation on the kidney disease of Ctns(-/-) mice 7 to 15 months post transplantation. Transfer of bone marrow stem cells expressing a functional Ctns gene provided long-term protection to the kidney. Effective therapy, however, depended on achieving a relatively high level of donor-derived blood cell engraftment of Ctns-expressing cells, which was directly linked to the quantity of these cells within the kidney. In contrast, kidney preservation was dependent neither on renal cystine content nor on the age of the mice at the time of transplant. Most of the bone marrow-derived cells within the kidney were interstitial and not epithelial, suggesting that the mechanism involved an indirect protection of the tubules. Thus, our model may help in developing strategies to enhance the potential success of cell-based therapy for kidney injury and in understanding some of the discrepancies currently existing in the field.
Insights
Bone marrow stem cell transplantation offers long-term kidney protection in a mouse model of cystinosis. Successful cell therapy for kidney disease depends on high engraftment of functional cells within the kidney.
Area of Science:
- Nephrology
- Regenerative Medicine
- Stem Cell Biology
Background:
- Cell-based therapy for kidney disease shows promise but faces challenges.
- Previous studies demonstrated short-term kidney function preservation in Ctns(-/-) mice post-transplantation.
- Cystinosis (Ctns(-/-)) mouse model develops chronic kidney injury.
Purpose of the Study:
- To evaluate the long-term efficacy of bone marrow stem cell transplantation in a mouse model of cystinosis.
- To determine the relationship between cell engraftment, kidney cystine levels, and therapeutic outcomes.
- To elucidate the mechanism of kidney protection mediated by bone marrow stem cells.
Main Methods:
- Long-term follow-up (7-15 months) of Ctns(-/-) mice post-bone marrow stem cell transplantation.
- Assessment of kidney function and histological changes.
- Quantification of donor-derived cell engraftment and localization within the kidney.
- Analysis of renal cystine content.
Main Results:
- Bone marrow stem cell transplantation provided long-term protection against kidney disease in Ctns(-/-) mice.
- Therapeutic success was directly correlated with high engraftment of Ctns-expressing donor cells in the kidney.
- Kidney preservation was independent of renal cystine levels and recipient age.
- Bone marrow-derived cells were primarily interstitial, suggesting indirect protection of renal tubules.
Conclusions:
- Bone marrow stem cell transplantation can achieve long-term kidney protection in a genetic model of kidney disease.
- High engraftment of functional donor cells is crucial for effective cell-based kidney therapy.
- The mechanism likely involves indirect protection of kidney tubules by interstitial bone marrow-derived cells.
- This study provides insights for developing improved cell-based strategies for kidney injury treatment.
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