following pre-incubation of skin sections and hep-2 cells with normal human serum ( as a source of vitronectin ) , cytoplasmic staining of keratinocytes and of cytoskeletal filaments in hep-2 cells was observed by immuno-fluorescence staining with polyclonal and monoclonal anti-vitronectin antibodies .
C0010834
cytoplasmic
C0007634
cells