Glycosylphosphatidylinositol Interactions in Malaria Pathogenesis
Summary
Malaria pathogenesis is driven by intricate molecular interactions between Plasmodium parasites and human host cells, among which glycosylphosphatidylinositol (GPI) anchors play a pivotal role. GPI anchors are glycolipid moieties that tether parasite proteins to the surface of merozoites, sporozoites and gametocytes, presenting key antigens to the human immune system. Beyond anchoring, GPIs themselves act as potent pathogen-associated molecular patterns: they stimulate innate immune receptors, trigger pro-inflammatory cytokine release and modulate vascular and cellular responses. Excessive GPI-induced inflammation is implicated in severe malaria complications, including cerebral malaria and anaemia. Conversely, naturally acquired anti-GPI antibodies neutralise GPI-mediated signalling and correlate with protection in endemic populations. Advances in proteomics have mapped the GPI-anchored proteome of Plasmodium falciparum, revealing the abundance and stoichiometry of merozoite surface proteins and highlighting vaccine candidates. Parallel exploration of host lectin interactions and carbohydrate-binding receptors has uncovered pathways by which parasites exploit the glycocalyx for cell invasion and immune evasion. This multifaceted network of GPI interactions underpins parasite survival, transmission dynamics and immunopathology, offering targets for novel therapeutics and vaccine strategies.
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Glycosylphosphatidylinositol Interactions in Malaria Pathogenesis publication trend
The graph below shows the total number of articles in glycosylphosphatidylinositol interactions in malaria pathogenesis across all publications each year (not limited to Nature Index journals).
Technical terms
Glycosylphosphatidylinositol (GPI) anchor: A glycolipid moiety that attaches proteins to cell membranes, acting as both tether and immunomodulatory molecule.
Glycan: A carbohydrate or polysaccharide chain that decorates lipids and proteins on cell surfaces, mediating recognition and adhesion.
Lectin: A protein that specifically binds carbohydrates, facilitating cell–cell interactions and pathogen recognition.
Cytokine: A signalling protein secreted by immune cells that modulates inflammatory and immune responses.
Merozoite surface protein (MSP): A family of GPI-anchored proteins expressed on the blood-stage merozoite surface, key targets for immune recognition and vaccine development.
References
- Parasite Carbohydrate Vaccines. Frontiers in Cellular and Infection Microbiology (2017).
- Decoding the Role of Glycans in Malaria. Frontiers in Microbiology (2017).
- Identification and Stoichiometry of Glycosylphosphatidylinositol-anchored Membrane Proteins of the Human Malaria Parasite Plasmodium falciparum * S. Molecular & Cellular Proteomics (2006).
- Inflammatory cytokine and humoral responses to Plasmodium falciparum glycosylphosphatidylinositols correlates with malaria immunity and pathogenesis. Immunity Inflammation and Disease (2015).
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