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Functional cross talk between CXCR4 and PDGFR on glioblastoma cells is essential for migration.

Abstract : Glioblastoma (GBM) is the most common and aggressive form of brain tumor, characterized by high migratory behavior and infiltration in brain parenchyma which render classic therapeutic approach ineffective. The migratory behaviour of GBM cells could be conditioned by a number of tissue- and glioma-derived cytokines and growth factors. Although the pro-migratory action of CXCL12 on GBM cells in vitro and in vivo is recognized, the molecular mechanisms involved are not clearly identified. In fact the signaling pathways involved in the pro-migratory action of CXCL12 may differ in individual glioblastoma and integrate with those resulting from abnormal expression and activation of growth factor receptors. In this study we investigated whether some of the receptor tyrosine kinases commonly expressed in GBM cells could cooperate with CXCL12/CXCR4 in their migratory behavior. Our results show a functional cross-talk between CXCR4 and PDGFR which appears to be essential for GBM chemotaxis.
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Submitted on : Saturday, August 2, 2014 - 12:46:02 PM
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Miriam Sciaccaluga, Giuseppina d'Alessandro, Francesca Pagani, Giuseppina Ferrara, Nadia Lopez, et al.. Functional cross talk between CXCR4 and PDGFR on glioblastoma cells is essential for migration.. PLoS ONE, Public Library of Science, 2013, 8 (9), pp.e73426. ⟨10.1371/journal.pone.0073426⟩. ⟨pasteur-01053840⟩

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