Assertion: foreskin's cell | /r/CapableOf | play essential role
Facets:
value: in the cutaneous mucosal immune system
type: LOCATION
Source sentences:
text: Although it has been known for many years that Langerhans and dendritic cells play an essential role in the cutaneous mucosal immune system, only recently has the mucosal immune system been used to prevented urinary tract infections by introducing antigens, i.e. immunisation, via the vaginal mucosa .