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Mass Isolation and In Vitro Cultivation of Intramolluscan Stages of the Human Blood Fluke Schistosoma Mansoni
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Virulence factors of schistosomes

R Alan Wilson1

  • 1Centre for Immunology & Infection, Department of Biology, University of York, Heslington, York YO10 5DD, UK. raw3@york.ac.uk

Microbes and Infection
|September 18, 2012
PubMed

Insights

Schistosome products, including secretions and proteins, are examined as potential virulence factors contributing to host infection and immune evasion. This review explores their roles in disease pathogenesis and parasite survival.

Area of Science:

  • Parasitology
  • Immunology
  • Molecular Biology

Background:

  • Schistosomes are parasitic flatworms causing schistosomiasis, a major human disease.
  • The parasite interacts extensively with the mammalian host immune system.
  • Understanding parasite-host interactions is crucial for developing effective treatments.

Purpose of the Study:

  • To evaluate schistosome-derived molecules as potential virulence factors.
  • To analyze the role of parasite products in host immune evasion.
  • To review the contribution of various parasite life stages to pathogenesis.

Main Methods:

  • Literature review of existing research on schistosome biology and host interactions.
  • Analysis of secreted and surface-exposed molecules from different parasite stages.
  • Examination of immune evasion strategies employed by schistosomes.

Main Results:

  • Cercarial secretions aid in host skin penetration.
  • Schistosomulum and adult worm products facilitate immune evasion in the portal system.
  • Egg secretions assist in tissue migration and immune modulation.
  • Micro-exon gene products may play a role in parasite survival.

Conclusions:

  • Schistosome products across all life stages exhibit characteristics of virulence factors.
  • These factors are critical for parasite infection, survival, and immune evasion within the host.
  • Further research into these molecules could reveal new therapeutic targets.

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