there was a distinct fall-off in the staining of many antigens including the lymphocyte antigens ln1 , ln2 , ln3 and uchl1 after 3 days of fixation and the intermediate filament proteins vimentin , desmin and neurofilaments failed to be labelled by monoclonal antibodies after 1 day and only variable staining for the cytokeratins was retained .
C0021769
intermediate filament proteins
C0042666
vimentin