polyclonal antibodies to recombinant human interferon-alpha , purified by passage over an affinity column ( sepharose coupled to the recombinant interferon ) , used in the indirect immunofluorescent method specifically stained the proliferative ( basal ) compartment of human epidermis in histological cross-sections of normal skin and in cultured keratinocyte colonies .
C0014520
epidermis
C0022567
colonies