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The impact of placental malaria on neurodevelopment of exposed infants: a role for the complement system?

Chloe R McDonald1, Robyn E Elphinstone, Kevin C Kain

  • 1Institute of Medical Science, University of Toronto, and SAR Laboratories, Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, University of Toronto, Toronto, Canada.

Trends in Parasitology
|April 9, 2013
PubMed

The in utero environment can have a profound impact on early brain development and subsequent childhood school performance and behavior. Over 125 million pregnant women are at risk of malaria each year, yet the impact of in utero malaria exposure on the neurological and cognitive development of their exposed infants is unknown. Based on recent evidence supporting a role for the complement system in regulating neurodevelopment, and mediating neuroinflammation and neurodegenerative diseases, we hypothesize that excessive complement activation induced by placental malaria may disrupt normal neurodevelopment resulting in neurocognitive impairment of infants exposed to malaria in utero. Complement components may mediate these effects through the initiation of neuroinflammation, dysregulation of neurovascular angiogenesis, and the disruption of normal synaptic pruning.

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