Fig. 3.

Immunohistochemical analysis of CD133, Ki67, CD44s, CD44v6, and EpCAM in HEK293-derived tumours. a Sections of cryopreserved samples of tumours derived from CD113^low and CD133^high cells inoculated in SCID mice were stained with CD133- and Ki67-specific antibodies and with an isotype-matched antibody for CD133 as a control. b Same as in a, but staining occurred with CD44s-, CD44v6-, and EpCAM-specific antibodies. Shown are representative micrograph sections from CD113^low and CD133^high cell-derived tumours