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Glial marker expression in OPC-derived KRAS+AKT and PDGF-B tumors. A–G, Representative pictures of immunostainings for (A) nestin, (B) GFAP, (C) vimentin (insets show expression in ependymal and Bergmann glial cells in the normal surrounding tissues, respectively), (D) CD44, (E) YKL40, (F) PDGFRα, and (G) OLIG2 in tumors from Ctv-a Arf−/− and Ctv-a Ink4a-Arf−/− mice induced by K-RAS+AKT or PDGF-B.
