@Article{Li2014,
journal="Folia Neuropathologica",
issn="1641-4640",
volume="52",
number="3",
year="2014",
title="Original paperExpression of HIF-1 regulated proteins vascular endothelial growth factor, carbonic anhydrase IX and hypoxia inducible gene 2 in hemangioblastomas",
abstract="  Introduction:  Hemangioblastomas occur as sporadic or as von Hippel-Lindau syndrome (VHL) associated tumors. In both settings, activation of the VHL-HIF-1 (hypoxia induced factor) pathway is thought to be important in tumor biology.   Material and methods:  We performed immunohistochemical studies on 23 hemangioblastomas, 13 meningiomas and 4 hemangiopericytomas to evaluate expression of the VHL-HIF-1 regulated proteins vascular endothelial growth factor (VEGF), carbonic anhydrase IX (CAIX) and hypoxia inducible gene 2 (HIG-2).    Results:  Hemangioblastomas showed significantly higher expression of CAIX and VEGF than the other tested tumors. They showed strong membranous expression of CAIX in a pattern identical to that observed in clear cell renal cell carcinomas (CCRCC). Interestingly, hemangioblastomas lacked significant reactivity for HIG-2.    Conclusions : The VHL-HIF-1 regulated genes VEGF and CAIX are expressed in hemangioblastomas but significant HIG-2 expression is not observed. Carbonic anhydrase IX staining in particular may be a helpful marker of hemangioblastomas but does not aid in the distinction from CCRCC. ",
author="Li, Mei
and Song, Jie
and Pytel, Peter",
pages="234--242",
doi="10.5114/fn.2014.45564",
url="http://dx.doi.org/10.5114/fn.2014.45564"
}