Figure 1From: Pancreatic-carcinoma-cell-derived pro-angiogenic factors can induce endothelial-cell differentiation of a subset of circulating CD34+ progenitorsConcentrations of VEGF-A, Angio-1, Angio-2 and CXCL12 in CM derived from PT45 and H6c7 cell lines measured by ELISA. Values are means ± SE of angiogenic factors detected in duplicate CM samples, in five separate experiments for PT45-CM, and in three for H6c7-CM (upper panel). Detection of VEGF-A, Angio-1, Angio-2 and CXCL12 in pancreatic carcinoma cells PT45, determined by immunohistochemistry. A representative negative control is also shown (original magnification 250X) (lower panel).Back to article page