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Updated: May 27, 2026
Progenitor-derived Oligodendrocyte Culture System from Human Fetal Brain
Published on: December 20, 2012
Human fetal oligodendrocyte progenitor cells from different gestational stages exhibit substantially different
Qiao-Ling Cui1, Lia D'Abate, Jun Fang
1Montreal Neurological Institute, McGill University, Montreal, Québec, Canada.
Insights
Human fetal oligodendrocyte progenitor cells (OPCs) show increased myelination capacity with gestational age. Donor cell age is crucial for assessing myelination potential in cellular replacement therapies.
Area of Science:
- Neuroscience
- Developmental Biology
- Cell Biology
Background:
- Oligodendrocyte progenitor cells (OPCs) are crucial for myelin formation in the central nervous system.
- The intrinsic regulatory mechanisms governing OPC myelination capacity with age are not fully understood.
- Human fetal brain tissue provides a valuable source for studying OPC development and function.
Purpose of the Study:
- To investigate the age-related intrinsic regulation of human fetal OPC myelination capacity.
- To determine how donor cell age influences OPC differentiation and myelin production.
- To assess the potential of OPCs for cellular replacement therapy based on age-dependent myelination.
Main Methods:
- Human fetal brain tissue (15-23 gestational weeks) was used to isolate OPCs via A2B5 or PDGFRα selection.
- OPCs were cultured alone or cocultured with rat dorsal root ganglia neurons (DRGNs).
- Expression of lineage markers (Olig2, sulfatides) and myelin components (GC, MBP) was assessed; cell death and axonal ensheathment were quantified.
Main Results:
- OPCs cultured alone showed age-dependent increases in lineage markers and decreased cell death with advancing gestational age.
- In coculture with DRGNs, OPCs expressed myelin components and ensheathed axons.
- OPCs from later gestational ages (>19 weeks) exhibited enhanced production of myelinating cells (GC+/MBP+) and greater axonal ensheathment capacity compared to younger OPCs.
- Growth factors BDNF and IGF-1 promoted OPC differentiation across all conditions.
Conclusions:
- Human fetal OPC myelination capacity is intrinsically regulated by donor cell chronological age.
- The age of OPCs significantly impacts their differentiation and ability to form myelin.
- Donor cell age is a critical factor to consider for the efficacy of OPC-based cellular replacement therapies for demyelinating diseases.
Abstract:
To investigate age-related intrinsic regulation of the capacity of human fetal oligodendrocyte progenitor cells (OPCs) to myelinate, potential OPCs were selected from 15- to 23-gestational-week (gw) human fetal brain tissue based on the expression of gangliosides--recognized with the monoclonal antibody A2B5, which detects multipotent cells including OPCs--or platelet-derived growth factor receptor α (PDGFRα), an early marker of the oligodendroglial lineage. Cells were either cultured alone or cocultured with rat dorsal root ganglia neurons (DRGNs). When cultured alone, both the A2B5- and PDGFRα-selected cells exhibited age-dependent increases in early to mid-stage lineage markers, including sulfatides (O4 antibody) and the transcription factor Olig2, while the cell death rate correlated negatively with age. In coculture with neurons, cells also expressed the myelin components galactocerebroside (GC) and myelin basic protein (MBP), and ensheathed axons. In DRGN cocultures, A2B5+ cells derived from >19 gw produced more GC+/MBP+ cells compared with the 15-17-week cells. The number of GC+ cells making axonal contacts, and ensheathing axonal segments per cell increased proportionally to gestational age. This age-dependent difference in GC/MBP cell number and capacity to ensheath axons persisted when PDGFRα selection was used to enrich for the number of OPCs in cultures derived from younger ages. Addition of the growth factors brain-derived neurotrophic factor (BDNF) and insulin-like growth factor 1 (IGF-1) enhanced OPC differentiation under all conditions. These findings indicate that intrinsic regulatory mechanisms associated with the chronological age of the donor cells are key variables to assess when considering the myelination capacity of OPCs for cellular replacement therapy.
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