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Updated: Aug 9, 2026
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Direct Induction of Human Neural Stem Cells from Peripheral Blood Hematopoietic Progenitor Cells
Published on: January 28, 2015
Direct isolation of human central nervous system stem cells
1StemCells, Inc., 525 Del Rey Avenue, Suite C, Sunnyvale, CA 94085; Laboratory of Genetics, The Salk Institute, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA. nichida@stemcell.net
Summary
Researchers isolated human central nervous system stem cells (hCNS-SC) from fetal brain tissue. These stem cells demonstrated self-renewal and differentiated into neurons and glial cells, showing potential for tissue repair.
Area of Science:
- Neuroscience
- Stem Cell Biology
- Developmental Biology
Background:
- Stem cells possess self-renewal and multilineage differentiation capabilities, offering potential for tissue repair.
- Human central nervous system stem cells (hCNS-SC) are crucial for neural development and repair.
- Identifying and isolating specific stem cell populations is key to therapeutic applications.
Purpose of the Study:
- To isolate and characterize clonogenic human central nervous system stem cells (hCNS-SC) from fresh human fetal brain tissue.
- To assess the self-renewal and multilineage differentiation potential of isolated hCNS-SC.
- To evaluate the in vivo engraftment, proliferation, migration, and differentiation capacity of hCNS-SC.
Main Methods:
- Utilized fluorescence-activated cell sorting (FACS) with specific antibodies to isolate hCNS-SC.
- Characterized hCNS-SC phenotype using cell surface markers (CD133, CD34, CD45, CD24).
- Established neurosphere cultures to assess self-renewal and differentiation potential.
- Transplanted sorted/expanded hCNS-SC into immunodeficient neonatal mouse brains to evaluate in vivo behavior.
Main Results:
- Successfully isolated clonogenic hCNS-SC with the phenotype 5F3 (CD133)(+), 5E12(+), CD34(-), CD45(-), and CD24(-/lo).
- Single sorted CD133(+) CD34(-) CD45(-) cells initiated self-renewing neurosphere cultures.
- Progeny of these stem cells differentiated into both neurons and glial cells.
- Transplanted hCNS-SC exhibited robust engraftment, proliferation, migration, and neural differentiation in vivo.
Conclusions:
- Established a method for isolating highly enriched, clonogenic human central nervous system stem cells.
- Demonstrated the self-renewal and multilineage differentiation potential of these isolated hCNS-SC.
- Confirmed the in vivo therapeutic potential of hCNS-SC for neural tissue repair and regeneration.
