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Updated: Jun 23, 2026
Isolation of Neural Stem/Progenitor Cells from the Periventricular Region of the Adult Rat and Human Spinal Cord
Published on: May 14, 2015
Transcriptomic and Functional Landscape of Adult Human Spinal Cord NSPCs Compared to iPSC-Derived Neural Progenitor
Sasi Kumar Jagadeesan1,2, Ahmad Galuta1,2, Ryan Vimukthi Sandarage3
1Department of Neurosciences, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada.
Induced pluripotent stem cell-derived neural stem/progenitor cells (NSPCs) show promise for spinal cord repair. Forebrain-derived NSPCs closely matched spinal cord NSPCs, unlike spinal cord-derived ones, with donor factors influencing outcomes.
Area of Science:
- Neuroscience
- Stem Cell Biology
- Regenerative Medicine
Background:
- Adult human spinal cords contain neural stem/progenitor cells (NSPCs) vital for repair.
- Induced pluripotent stem cell (iPSC)-derived NSPCs are a potential therapy, but require validation against native spinal cord NSPCs.
- Understanding molecular and functional alignment is key for autologous cell therapies in spinal cord regeneration and immune compatibility.
Purpose of the Study:
- To directly compare transcriptomic and functional profiles of bona fide spinal cord NSPCs with iPSC-derived NSPCs regionalized to the spinal cord (iPSC-SC) and forebrain (iPSC-Br).
- To investigate donor-specific influences on NSPC behavior and their impact on therapeutic potential.
Main Methods:
- RNA sequencing to analyze transcriptomic profiles of different NSPC populations.
- Functional assays to assess neurogenic potential and other cellular behaviors.
- Comparison of syngeneic NSPC populations from multiple human donors.
Main Results:
- Distinct transcriptomic profiles and functional differences were observed among NSPC types.
- iPSC-Br NSPCs showed high similarity to bona fide spinal cord NSPCs, with enriched neurogenesis and axon guidance pathways.
- iPSC-SC NSPCs exhibited heterogeneity, poor regional specification, and increased immune-related gene expression.
- Functional assays confirmed superior neurogenic potential of iPSC-Br NSPCs.
- Donor-specific genetic and epigenetic factors significantly influenced NSPC transcriptomes and differentiation, affecting alignment with native spinal cord NSPCs.
Conclusions:
- iPSC-Br NSPCs represent a more promising source for spinal cord regeneration therapies compared to iPSC-SC NSPCs.
- Donor variability is a critical factor to consider in the development of personalized iPSC-based cell therapies for spinal cord injury.
- Further research is needed to optimize iPSC differentiation and account for donor-specific effects to maximize therapeutic efficacy.
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