Immunomodulation through vaccination as a promising therapeutic strategy to mitigate malaria-related neurocognitive sequelae.
Brain, behavior, and immunity(2023)
摘要
Malaria, an ancient infectious parasitic disease, is caused by protozoa of the genus Plasmodium, whose erythrocytic cycle is accompanied by fever, headache, sweating and chills and a systemic inflammation that can progress to severe forms of disease, including cerebral malaria. Approximately 25% of survivors of this syndrome develop sequelae that may include neurological, neurocognitive, behavioral alterations and poor school performance. Furthermore, some outcomes have also been recorded following episodes of non-severe malaria, which correspond to the most common clinical form of the disease worldwide. There is a body of evidence that neuroinflammation, due to systemic inflammation, plays an important role in the neuropathogenesis of malaria culminating in these cognitive dysfunctions. Preclinical studies suggest that vaccination with type 2 immune response elicitors, such as the tetanus-diphtheria (Td) vaccine, may exert a beneficial immunomodulatory effect by alleviating neuroinflammation. In this viewpoint article, vaccination is proposed as a therapy approach to revert or mitigate neurocognitive deficits associated with malaria.
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