Syncytiotrophoblast intercellular adhesion molecule-1 expression in placental villitis of unknown cause

Placentas with villitis have significantly more syncytiotrophoblast intercellular adhesion molecule-1 expression than placentas without villitis. The finding that normal villi from placentas with villitis have more syncytiotrophoblast intercellular adhesion molecule-1 than normal villi from placentas without villitis suggests that syncytiotrophoblast intercellular adhesion molecule-1 could be the first step in villitis development.