Aberrant receptor-mediated endocytosis of Schistosoma mansoni glycoproteins on host lipoproteins
2006

How Schistosoma mansoni Glycoproteins Affect the Immune System

publication Evidence: high

Author Information

Author(s): Sprong Hein, Suchanek Monika, van Dijk Suzanne M, van Remoortere Alexandra, Klumperman Judith, Avram Diana, van der Linden Joke, Leusen Jeanette H. W, van Hellemond Jaap J, Thiele Christoph

Primary Institution: Utrecht University, Netherlands

Hypothesis

The study investigates whether the release of glycoproteins from Schistosoma mansoni contributes to immune evasion.

Conclusion

The transfer of parasite antigens to host cells via lipoproteins disrupts lipid balance in immune cells and may lead to an ineffective immune response.

Supporting Evidence

  • Schistosomal glycoproteins were found associated with human lipoprotein particles in infected patients.
  • Endocytosis of these glycoproteins by host cells led to changes in lysosome morphology.
  • Neutrophils from infected patients showed increased lipid accumulation and apoptosis.

Takeaway

Parasites can hide from our immune system by sticking their proteins to our body's fat carriers, which confuses our immune cells.

Methodology

The study involved isolating lipoprotein particles from patient serum and analyzing the uptake of schistosomal glycoproteins by host cells.

Participant Demographics

Patients suffering from chronic schistosomiasis and control individuals.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1371/journal.pmed.0030253

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