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Does Trypanosoma cruzi calreticulin modulate the complement system and angiogenesis?

Viviana Ferreira1, María Carmen Molina, Wilhelm Schwaeble

  • 1Programa de Inmunología, ICBM, Facultad de Medicina, Universidad de Chile, Independencia 1027, Santiago, Chile. aferreir@med.uchile.cl

Trends in Parasitology
|March 23, 2005
PubMed
Summary

Parasite calreticulin plays a dual role, potentially aiding immune evasion by modulating the complement system or protecting hosts from cancer by inhibiting angiogenesis.

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Area of Science:

  • Molecular biology
  • Immunology
  • Parasitology

Background:

  • Calreticulin is a conserved calcium-binding protein found in various subcellular compartments across organisms.
  • Parasite calreticulin, particularly from Trypanosoma cruzi, exhibits unique functions.
  • Understanding parasite calreticulin's roles is crucial for host-parasite interactions.

Purpose of the Study:

  • To propose a dual role for parasite calreticulin.
  • To investigate the functions of Trypanosoma cruzi calreticulin.
  • To explore calreticulin's impact on host immune systems and neoplasia.

Main Methods:

  • Literature review and theoretical analysis.
  • Focus on Trypanosoma cruzi as a model organism.
  • Exploration of calreticulin's interactions with host systems.

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Main Results:

  • Parasite calreticulin may modulate the vertebrate complement system for immune evasion.
  • The molecule might inhibit angiogenesis, potentially protecting the host from cancer.
  • Calreticulin's specific in vivo consequences for host and parasite remain under investigation.

Conclusions:

  • Parasite calreticulin exhibits a dual function with implications for both parasite survival and host health.
  • Further research is needed to elucidate the in vivo effects and therapeutic potential.