Figure 3From: Origin of the vasculature supporting growth of primary patient tumor xenograftsAt the time of second passage, vessels in successfully growing xenografts of four different tumor types surveyed were of murine origin: A-C Colon; D-F Lung; G-I Pancreatic; J-L Renal Cell Carcinoma. For each tumor type, a representative section of an original patient specimen labeled with anti-huCD31 is shown (A, D, G, J). For each tumor, sections of the first passage xenografted tumor when it was resected are also shown; while no huCD31(+) vessels were identified in the xenografts (B, E, H, K), msCD34(+) vessels were abundant (C, F, I, L). (bars = 50 μ).Back to article page