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Neuroscience. 2013 Nov 12;252:320-5. doi: 10.1016/j.neuroscience.2013.08.025. Epub 2013 Aug 28.

Brain IL-6 and autism.

Author information

1
Central Laboratory, Shanxi Provincial People's Hospital, Affiliate of Shanxi Medical University, Taiyuan, China. Electronic address: hongenwei@gmail.com.

Abstract

Autism is a severe neurodevelopmental disorder characterized by impairments in social interaction, deficits in verbal and non-verbal communication, and repetitive behavior and restricted interests. Emerging evidence suggests that aberrant neuroimmune responses may contribute to phenotypic deficits and could be appropriate targets for pharmacologic intervention. Interleukin (IL)-6, one of the most important neuroimmune factors, has been shown to be involved in physiological brain development and in several neurological disorders. For instance, findings from postmortem and animal studies suggest that brain IL-6 is an important mediator of autism-like behaviors. In this review, a possible pathological mechanism behind autism is proposed, which suggests that IL-6 elevation in the brain, caused by the activated glia and/or maternal immune activation, could be an important inflammatory cytokine response involved in the mediation of autism-like behaviors through impairments of neuroanatomical structures and neuronal plasticity. Further studies to investigate whether IL-6 could be used for therapeutic interventions in autism would be of great significance.

KEYWORDS:

CSF; GM-CSF; Granulocyte–macrophage colony-stimulating factor; IFN-γ; IL; Interferon-γ; Interleukin; Interleukin-6; MCP; MIA; MRI; TNF-α; autism; behavior; brain; cerebrospinal fluid; macrophage chemoattractant protein; magnetic resonance imaging; maternal immune activation; neuroimmune response; tumor necrosis factor alpha

[Indexed for MEDLINE]

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