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Inflammation and Elevated Osteopontin in Plasma and CSF in Cerebral Malaria Compared to Plasmodium-Negative

Monique F Stins1,2, Agnes Mtaja3, Evans Mulendele3

  • 1Malaria Research Institute, Johns Hopkins School of Public Health, 615N Wolfe Street, Baltimore, MD 21205, USA.

International Journal of Molecular Sciences
|September 14, 2024
PubMed

Insights

Cerebral malaria in children causes inflammation, with osteopontin elevated in plasma and cerebrospinal fluid. This suggests osteopontin may be a key factor in brain inflammation and a potential therapeutic target.

Area of Science:

  • Neuroscience
  • Immunology
  • Infectious Diseases

Background:

  • Cerebral malaria (CM) in African children leads to high mortality and lasting neurological deficits.
  • Neuroinflammation, driven by Plasmodium-infected red blood cells, is implicated in CM's pathogenesis and sequelae.

Purpose of the Study:

  • To investigate the levels of specific proinflammatory analytes in the plasma and cerebrospinal fluid (CSF) of children with CM.
  • To compare these inflammatory profiles with those of children experiencing neurological symptoms but without malaria.

Main Methods:

  • Measurement of IP10, IL23, MIP3α, GRO, MCP-1, and osteopontin in plasma and CSF samples.
  • Comparison of analyte levels between children with CM and non-CM neurological conditions.

Main Results:

  • IP10 levels were higher in CM patient plasma but not CSF.
  • Osteopontin levels were significantly elevated in both plasma and CSF of CM patients compared to non-CM patients.
  • Both groups exhibited a highly inflammatory environment, but with distinct profiles for CM.

Conclusions:

  • Osteopontin may play a crucial role in the neuroinflammation associated with cerebral malaria and its long-term neurological consequences.
  • Osteopontin represents a potential biomarker for neuroinflammatory infections and a target for therapeutic interventions.

Keywords:
GROIP10braincerebral malariainflammationmeningitisosteopontin

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