Immune cells exploit a neural circuit to enter the CNS.

Tracey, Kevin J · Cell · 2012

basic_science · Level V

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Abstract

Multiple sclerosis (MS) is associated with the appearance of autoreactive T cells in the central nervous system. Using a mouse model of MS, Arima et al. now show that this attack begins at a specific spinal cord location. T cell entry into the CNS is regulated by a reflex neural circuit originating from leg muscle contractions.