Xenoplastic combinations between chick chorionic epithelium and fetal monkey dermis.

Fetel monkey dermis from the sole of the foot or ear induces the chick chorionic epithelum (CE) to form an epidermis that histologically resembles chick rather than monkey. These results support the conclusion that in epithelial-mesenchymal interactions between animals of different vertebrate classes the epithelium responds in a species-specific manner. Differences were noted, however, in the response of the avian CE to either the sole or ear dermis.