the expression of an epidermal keratin subunit and a specific antigen of the keratinocyte membrane , two differentiation antigens in normal human epidermis , was studied in benign and malignant epidermal lesions by use of monoclonal antibodies kl1 ( anti 55-57 kd keratins ) and kl3 ( anti keratinocyte membrane antigen ) .
C0014520
epidermal
C0022567
membrane