CD133+ gallbladder carcinoma cells exhibit self-renewal ability and tumorigenicity

Figure 6 Xenograft formation of CD133⁺ gallbladder carcinoma cells. Sorted cells were injected subcutaneously into the abdominal regions of nude mice at a dose of 10 000 cells. A: CD133⁺ cells produced palpable xenograft tumors at the injection site, whereas CD133^- cells generated no tumors; B: Hematoxylin and eosin staining of xenograft and expression of CA19-9 (original magnification × 200).