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Nat Rev Immunol. 2016 Jan;16(1):22-34. doi: 10.1038/nri.2015.5.

The role of inflammation in depression: from evolutionary imperative to modern treatment target.

Author information

1
Emory University School of Medicine, Winship Cancer Institute, Atlanta, 30322 Georgia, USA.
2
School of Human Ecology, University of Wisconsin-Madison, Madison, 53706 Wisconsin, USA.

Abstract

Crosstalk between inflammatory pathways and neurocircuits in the brain can lead to behavioural responses, such as avoidance and alarm, that are likely to have provided early humans with an evolutionary advantage in their interactions with pathogens and predators. However, in modern times, such interactions between inflammation and the brain appear to drive the development of depression and may contribute to non-responsiveness to current antidepressant therapies. Recent data have elucidated the mechanisms by which the innate and adaptive immune systems interact with neurotransmitters and neurocircuits to influence the risk for depression. Here, we detail our current understanding of these pathways and discuss the therapeutic potential of targeting the immune system to treat depression.

PMID:
26711676
PMCID:
PMC5542678
DOI:
10.1038/nri.2015.5
[Indexed for MEDLINE]
Free PMC Article

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