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Related Experiment Videos

Invertebrate molecular neuroimmune processes.

M Salzet1

  • 1Laboratoire d'Endocrinologie des Annélides, UPRES-A CNRS 8017, SN3, Université des Sciences et Technologies de Lille, 59655 Cédex, Villeneuve d'Ascq, France. michel.salzet@univ-lille1.fr

Brain Research. Brain Research Reviews
|November 22, 2000
PubMed
Summary

Evolutionarily conserved signaling molecules, including opioid peptides and endocannabinoids, modulate immune responses in both invertebrates and vertebrates. These potent immunosuppressors highlight bidirectional endocrine-immune communication and are exploited by parasites.

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Area of Science:

  • Neuroimmunology
  • Endocrinology
  • Evolutionary Biology

Background:

  • Invertebrates and vertebrates share conserved signaling molecules like neuropeptides and opiates.
  • Hormonal-enzymatic systems, including opioid-opiate-cannabinoid pathways, are present in both central nervous and immune systems.
  • These signaling molecules circulate in the blood, acting as immunomodulators.

Purpose of the Study:

  • To review peptides derived from the opioid proopiomelanocortin precursor, opiates, and endocannabinoids.
  • To examine these molecules as potent immunosuppressors.
  • To illustrate bidirectional communication between endocrine and immune systems, and parasite manipulation of these pathways.

Main Methods:

  • Literature review focusing on opioid peptides, opiates, and endocannabinoids.

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  • Analysis of their roles in immune modulation and inter-system communication.
  • Examination of host-parasite interactions involving these signaling molecules.

    • Main Results:

    • Opioid-derived peptides, opiates, and endocannabinoids are powerful immunosuppressors.
    • These molecules exemplify bidirectional communication between the endocrine and immune systems.
    • Parasites effectively utilize these host immunosuppressors for their own advantage.

    Conclusions:

    • Conserved signaling molecules play critical roles in immune regulation across diverse species.
    • The interplay between endocrine and immune systems is fundamental and evolutionarily ancient.
    • Understanding these pathways offers insights into host-parasite coevolution and immune evasion strategies.