melanocytes coisolated from the same skin biopsy also proliferate under these culture conditions and maintain differentiated functions ( i.e. , synthesize melanin granules , regularly intersperse in the basal layer of the cultured epidermis , and transfer melanosomes in the cytoplasm of contiguous keratinocytes ) ( de luca , m. , a .
C0221925
basal layer
C0014520
epidermis