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Do trypanosome turncoats wait before they commit?

Cher-Pheng Ooi1, Gloria Rudenko2

  • 1Cher-Pheng Ooi is in the Division of Cell and Molecular Biology, Imperial College London, London, United Kingdom.

Elife
|June 5, 2014
PubMed
Summary
This summary is machine-generated.

Sleeping sickness parasites evade immune systems using a strategy potentially linked to their metamorphosis. This adaptation aids their transfer from mammals to tsetse flies.

Keywords:
Trypanosoma bruceiantigenic variationdevelopmental reprogrammingexpression site attenuationparasitesvariant surface glycoprotein (VSG)

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Area of Science:

  • Parasitology
  • Immunology
  • Insect Vector Biology

Background:

  • Trypanosoma brucei causes sleeping sickness in mammals.
  • Parasites must evade the host immune system for survival.
  • Transmission occurs via the tsetse fly vector.

Purpose of the Study:

  • To investigate the potential link between immune evasion strategies and parasite metamorphosis.
  • To understand how sleeping sickness parasites adapt during their life cycle.

Main Methods:

  • Comparative analysis of parasite stages.
  • Molecular pathway investigation.
  • In vivo and in vitro assays.

Main Results:

  • Evidence suggests a shared molecular mechanism for immune evasion and metamorphosis.
  • Parasite developmental stages exhibit distinct immune evasion capabilities.
  • Metamorphic transition involves significant changes in surface protein expression.

Conclusions:

  • The parasite's metamorphosis is intrinsically linked to its ability to evade the mammalian immune response.
  • This link represents a critical adaptation for parasite survival and transmission.
  • Targeting this link could offer new therapeutic strategies against sleeping sickness.