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. 2007 Aug 6;204(8):1973–1987. doi: 10.1084/jem.20061603

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Copyright © 2007, The Rockefeller University Press

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Figure 5. — Companion cells to the hHpSC colonies comprise hepatic stellate cells and angioblasts. hHpSCs are associated with mesenchymal companion cells with distinct antigenic profiles (Videos 1–3). Two types of companion cells are evident: angioblasts (positive for VEGF-R, CD133/1, and CD117, and weakly positive for CD31 and von Willebrand's factor) and hepatic stellate cells (positive for desmin and α-smooth muscle actin [aSMA]). Videos 1–3 are available at http://www.jem.org/cgi/content/full/jem.20061603/DC1.