Renal lineage cells as a source for renal regeneration
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Published on: August 29, 2011
Oren Pleniceanu1, Dorit Omer1, Orit Harari-Steinberg1
1Pediatric Stem Cell Research Institute and Division of Pediatric Nephrology, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat Gan, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Abstract:
The mammalian kidney is a highly complex organ, composed of various cell types within a unique structural framework. Nonetheless, in recent years, giant leaps in our understanding of nephrogenesis and the origin of new cells in the adult kidney have resulted in novel routes to regenerate damaged nephrons. While several strategies can be envisioned to achieve this aim, one common theme is the reliance on renal lineage cells, as extrarenal cells, such as bone marrow-derived cells, have been shown to be devoid of renal differentiation capacity. Herein, we will present the main motivation for the pursuit for cell-based therapies, which is the ever growing problem of chronic kidney disease (CKD), and discuss different strategies toward replenishing the damaged renal parenchyma. These include transplantation of fetal kidney grafts or fetal kidney stem cells, directed differentiation of pluripotent stem cells into kidney epithelia, establishment of renal progenitors from the adult kidney, and genetic reprogramming of mature kidney cells into a progenitor state. Taken together with novel techniques recapitulating the three-dimensional developmental environment, these advances are expected to take the field into a new era, bringing us closer than ever to the day when kidney stem cell-based therapy becomes a viable therapeutic option.
Insights
Researchers are exploring cell-based therapies to regenerate damaged nephrons in the kidney, offering new hope for chronic kidney disease (CKD) patients. Advances in stem cell technology and regenerative medicine are paving the way for viable kidney stem cell therapies.
Area of Science:
- Nephrology
- Regenerative Medicine
- Developmental Biology
Background:
- Chronic kidney disease (CKD) presents a growing global health challenge.
- The mammalian kidney's complexity and limited self-repair capacity necessitate novel therapeutic strategies.
- Recent advancements in understanding nephrogenesis offer new avenues for kidney regeneration.
Purpose of the Study:
- To review cell-based therapeutic strategies for regenerating damaged nephrons.
- To discuss the potential of various stem cell sources for kidney repair.
- To highlight the progress toward viable kidney stem cell-based therapies for CKD.
Main Methods:
- Review of current research on nephrogenesis and adult kidney cell origins.
- Discussion of strategies including fetal kidney grafts, stem cell differentiation, adult progenitor isolation, and cell reprogramming.
- Exploration of 3D culture techniques to mimic developmental environments.
Main Results:
- Extrarenal cells, like bone marrow-derived cells, lack renal differentiation capacity.
- Multiple cell-based approaches show promise for replenishing damaged renal parenchyma.
- Integration of developmental biology techniques enhances regenerative potential.
Conclusions:
- Cell-based therapies hold significant promise for treating chronic kidney disease.
- Reliance on renal lineage cells is crucial for successful kidney regeneration.
- Emerging techniques are bringing kidney stem cell therapy closer to clinical application.
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