Abstract
Enteric glial cells (EGC) have trophic and neuroregulatory functions in the enteric nervous system, but whether they exert a direct effect on immune cells is unknown. Here, we used co-cultures to show that human EGC can inhibit the proliferation of activated T lymphocytes. Interestingly, EGC from Crohn's patients were effective at one EGC for two T cells whereas EGC from control patients required a ratio of 1:1. These data suggest that EGC contribute to local immune homeostasis in the gastrointestinal wall. They also raise the possibility that EGC have particular immunosuppressive properties in inflammatory bowel diseases such as Crohn's disease.
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