Figure 1

Immunohistochemical staining of LgR5 (membranous staining pattern, brown) in normal colon tissue. Normal colon mucosa (asterisk) showed the typical staining pattern as they stained the well-described putative colon mucosa stem cells, located at the basis of the crypts, or the transit amplifying zone, which are regarded to resemble the stem cell niche (arrows). Original magnification, × 200 (a) and × 400 (b).