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The Role of Oxytocin in Abnormal Brain Development: Effect on Glial Cells and Neuroinflammation
Marit Knoop1, Marie-Laure Possovre1, Alice Jacquens2
1Laboratory of Child Growth and Development, University of Geneva, 1205 Geneva, Switzerland.
Insights
The neuropeptide oxytocin (OT) shows promise in protecting the developing brain from injury and neuroinflammation during the critical neonatal period. Further research into OT
Area of Science:
- Neuroscience
- Developmental Biology
- Neonatal Research
Background:
- The neonatal period is crucial for brain development but vulnerable to injury from perinatal complications like preterm birth.
- Brain injuries in premature infants can cause long-term neurodevelopmental and behavioral issues.
- Neuroinflammation is a key factor contributing to adverse brain development in neonates.
Purpose of the Study:
- To review the oxytocinergic system's development and role in the neonatal brain.
- To explore oxytocin's potential neuroprotective effects against neonatal brain injury and neuroinflammation.
- To investigate the mechanisms by which oxytocin modulates glial activity, particularly in the amygdala.
Main Methods:
- Review of existing literature on the oxytocinergic system in rodents and humans.
- Analysis of current understanding of oxytocin's function in neonatal brain development.
- Detailed assessment of mechanisms linking oxytocin treatment to astrocyte and microglia reactivity.
Main Results:
- The neuropeptide oxytocin (OT) plays a significant role in the perinatal period and early life.
- Emerging evidence suggests novel functions of OT in the developing brain, including modulation of glial activity during neuroinflammation.
- Oxytocin's effects on astrocyte and microglia reactivity, and its impact on the amygdala, are key areas of investigation.
Conclusions:
- Oxytocin (OT) represents a potential therapeutic target for protecting the developing brain from injury and neuroinflammation.
- Understanding the mechanisms of OT's interaction with glial cells is crucial for developing effective neuroprotective strategies.
- Further research is warranted to elucidate OT's full potential in mitigating long-term neurocognitive and behavioral problems in preterm infants.
Abstract:
The neonatal period is critical for brain development and determinant for long-term brain trajectory. Yet, this time concurs with a sensitivity and risk for numerous brain injuries following perinatal complications such as preterm birth. Brain injury in premature infants leads to a complex amalgam of primary destructive diseases and secondary maturational and trophic disturbances and, as a consequence, to long-term neurocognitive and behavioral problems. Neuroinflammation is an important common factor in these complications, which contributes to the adverse effects on brain development. Mediating this inflammatory response forms a key therapeutic target in protecting the vulnerable developing brain when complications arise. The neuropeptide oxytocin (OT) plays an important role in the perinatal period, and its importance for lactation and social bonding in early life are well-recognized. Yet, novel functions of OT for the developing brain are increasingly emerging. In particular, OT seems able to modulate glial activity in neuroinflammatory states, but the exact mechanisms underlying this connection are largely unknown. The current review provides an overview of the oxytocinergic system and its early life development across rodent and human. Moreover, we cover the most up-to-date understanding of the role of OT in neonatal brain development and the potential neuroprotective effects it holds when adverse neural events arise in association with neuroinflammation. A detailed assessment of the underlying mechanisms between OT treatment and astrocyte and microglia reactivity is given, as well as a focus on the amygdala, a brain region of crucial importance for socio-emotional behavior, particularly in infants born preterm.
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