Fig. 2.

Immunohistochemical (IHC) staining of jejunal and ileal cell cultures. Cytospins from jejunal (A–D) and ileal (E–H) cells (P-1) obtained from a 180-day-old fetus were stained using IgG2a (A and E) and IgM (C and G) isotype control monoclonal antibodies or monoclonal antibodies specific for cytokeratin (B and F) and vimentin (D and H). No visible staining was observed with the isotype control antibodies but both the jejunal (B and D) and ileal (F and H) cytospins were visibly stained for cytokeratin and vimentin.