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The immune system as the sixth sense.

J E Blalock1

  • 1Department of Physiology and Biophysics, University of Alabama at Birmingham, Birmingham, AL, USA. blalock@uab.edu

Journal of Internal Medicine
|January 20, 2005
PubMed
Summary

The nervous and immune systems communicate using a shared chemical language of neurotransmitters and cytokines. This bidirectional communication allows the immune system to act as a "sixth sense," alerting the nervous system to pathogens.

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Area of Science:

  • Neuroimmunology
  • Molecular Biology
  • Physiology

Background:

  • The nervous and immune systems, once thought to be separate, share a common chemical language.
  • Understanding this communication is key to comprehending complex biological processes.

Purpose of the Study:

  • To review pivotal findings deciphering the shared chemical language between the nervous and immune systems.
  • To explore bidirectional communication pathways and their implications.
  • To discuss the immune system's role as a "sixth sense" for the nervous system.

Main Methods:

  • Review of key research findings in neuroimmunology.
  • Analysis of studies on shared neurotransmitters, cytokines, and receptors.
  • Examination of hardwired and humoral communication pathways.

Main Results:

  • Nervous and immune systems utilize common peptide and nonpeptide neurotransmitters and cytokines.
  • A shared repertoire of receptors facilitates inter-system signaling.
  • Bidirectional communication pathways (hardwired and humoral) have been identified.

Conclusions:

  • The immune system functions as a "sixth sense," detecting pathogens imperceptible to traditional senses.
  • This neuro-immune crosstalk offers insights into placebo effects and disease treatment.
  • Further research can leverage this knowledge for therapeutic interventions.

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