The Plasmodium falciparum STEVOR Multigene Family Mediates Antigenic Variation of the Infected Erythrocyte
2009

STEVOR Multigene Family and Antigenic Variation in Malaria

publication Evidence: high

Author Information

Author(s): Niang Makhtar, Yan Yam Xue, Preiser Peter Rainer

Primary Institution: Nanyang Technological University, School of Biological Sciences, Singapore

Hypothesis

What role does the STEVOR multigene family play in the antigenic variation of Plasmodium falciparum-infected red blood cells?

Conclusion

The study demonstrates that STEVOR is expressed on the surface of infected red blood cells and contributes to antigenic variation.

Supporting Evidence

  • STEVOR is clonally variant at the surface of schizont stage parasites.
  • Expression of different STEVOR on the surface of the iRBC changes the antigenic property of the parasite.
  • STEVOR plays a role in creating antigenic diversity of schizont stage parasites.

Takeaway

The malaria parasite can change its appearance to avoid being recognized by the immune system, and a specific protein called STEVOR helps it do this.

Methodology

The study used immunofluorescence assays, flow cytometry, and agglutination assays to analyze the expression of STEVOR proteins.

Limitations

The study does not provide experimental evidence for the predicted two-transmembrane domain structure of STEVOR.

Digital Object Identifier (DOI)

10.1371/journal.ppat.1000307

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