Skip to main content

Open Access Immune Disturbances in Chronic Pain: Cause, Consequence or Both?

Download Article:
 Download
(PDF 976.5 kb)
 
This review discusses the role of aberrant neuroimmune functioning in chronic pain disorders. Like other negatively-valenced emotions, pain activates a complex adaptive response that includes endocrine, autonomic and immune components. When appropriate, this response re-establishes homeostasis. However, in the context of chronic pain dysregulated immune, autonomic and endocrine responses contribute to peripheral and central sensitization, a phenomena emblematic of chronic pain. Excessive neuroimmune interactions in the vicinity of nociceptors and in dorsal root ganglia augment peripheral pain-related transmission. These amplified peripheral signals are associated with increased immune/inflammatory signaling in the dorsal horn and supraspinal pain-processing circuitry, the so-called “pain maitrix”. We focus on the neuron-glia-immune cell junction as the principal processing unit of pain signals in the CNS. Neuroimmune disturbances not only have functional consequences, such as amplified pain signaling, but also contribute to structural alterations in pain-processing brain areas. Lastly, aberrant immune activation also participates in dysfunctional descending pain regulation. The role of the immune system as a meta-homeostatic entity that coordinates interactions of emotion- and stress-modulating brain circuitry with endocrine and autonomic systems is discussed in some detail. We emphasize the importance of neuroimmune mechanisms not only in the genesis but also in treatment of chronic pain.





No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Keywords: Chronic pain; autonomic systems; endocrine responses; glia; immunity; inflammatory cytokines; neuroimmune; neurotrophic factors; pain maitrix; structural brain changes

Document Type: Research Article

Publication date: 01 February 2012

More about this publication?
  • Current Immunology Reviews publishes frontier reviews on all the latest advances in clinical immunology. The journal's aim is to publish the highest quality review articles dedicated to clinical research in the field. The journal is essential reading for all researchers and clinicians in clinical immunology.
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more