Erythropoietin signaling promotes oligodendrocyte development following prenatal systemic hypoxic-ischemic brain injury
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Updated: May 7, 2026

Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
Published on: November 20, 2015
Lauren L Jantzie1, Robert H Miller2, Shenandoah Robinson1
1Departments of Neurosurgery and Neurology, F.M. Kirby Center for Neurobiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts.
Insights
Recombinant erythropoietin (rEPO) aids brain injury recovery in preterm infants by promoting oligodendrocyte development and myelination after white matter injury. This suggests EPO treatment may benefit infants with developmental brain injuries.
Area of Science:
- Neuroscience
- Developmental Biology
- Regenerative Medicine
Background:
- Preterm birth can cause white matter injury (WMI), leading to chronic neurological deficits.
- Immature oligodendrocytes are vulnerable to WMI, impacting brain development.
- Erythropoietin (EPO) aids neuronal recovery, but its role in oligodendrocyte recovery is unclear.
Purpose of the Study:
- To investigate the role of recombinant EPO (rEPO) in enhancing oligodendrocyte lineage recovery after prenatal transient systemic hypoxia-ischemia (TSHI).
- To determine if rEPO promotes oligodendroglial cell genesis, survival, maturation, and myelination post-injury.
Main Methods:
- In vitro assays were employed to assess rEPO's effects on oligodendrocyte development and recovery.
- The study focused on specific stages of oligodendrocyte lineage progression after TSHI.
Main Results:
- rEPO treatment promoted the genesis of oligodendrocyte progenitors and survival of precursor cells and immature oligodendrocytes.
- rEPO enhanced O4+ cell process extension and myelin basic protein (MBP) expression.
- rEPO did not significantly alter oligodendrocyte precursor cell proliferation.
Conclusions:
- EPO signaling promotes key stages of oligodendrocyte development and recovery following prenatal TSHI.
- EPO treatment shows potential as a therapeutic strategy for infants with developmental brain injury and WMI.
Background:
Brain injury from preterm birth causes white matter injury (WMI), and it leads to chronic neurological deficits including cerebral palsy, epilepsy, cognitive, and behavioral delay. Immature O4+ oligodendrocytes are particularly vulnerable to WMI. Understanding how the developing brain recovers after injury is essential to finding more effective therapeutic strategies. Erythropoietin (EPO) promotes neuronal recovery after injury; however, its role in enhancing oligodendroglial lineage recovery is unclear. Previously, we found that recombinant EPO (rEPO) treatment enhances myelin basic protein (MBP) expression and functional recovery in adult rats after prenatal transient systemic hypoxia-ischemia (TSHI). We hypothesized that after injury, rEPO would enhance oligodendroglial lineage cell genesis, survival, maturation, and myelination.
Methods:
In vitro assays were used to define how rEPO contributes to specific stages of oligodendrocyte development and recovery after TSHI.
Results:
After prenatal TSHI injury, rEPO promotes genesis of oligodendrocyte progenitors from oligodendrospheres, survival of oligodendrocyte precursor cells (OPCs) and O4+ immature oligodendrocytes, O4+ cell process extension, and MBP expression. rEPO did not alter OPC proliferation.
Conclusion:
Together, these studies demonstrate that EPO signaling promotes critical stages of oligodendroglial lineage development and recovery after prenatal TSHI injury. EPO treatment may be beneficial to preterm and other infant patient populations with developmental brain injury hallmarked by WMI.
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