Secretome analysis of Cx43 expressing cells

Extracellular matrix remodeling, degradation and glioma cell motility are critical aspects of glioblastoma multiforme (GBM). Despite being a rich source of potential biomarkers and targets for therapeutic advance, the dynamic changes within the extracellular environment that are specific to GBM cell motility have yet to be fully resolved. The gap junction protein connexin43 (Cx43) increases glioma migration and invasion in a variety of in vitro and in vivo models. In this study, the conditioned media of Cx43-expressing C6 rat glioma cells was found to increase the motility of the parental line. Demonstrating the selective engagement of ECM-remodelling pathways, secretome analysis revealed the near-binary expression of osteopontin and matrix metalloproteinase-3 (MMP3).