VEGFA and glioblastoma: Moreover, US28 constitutively promotes VEGF secretion (Maussang et al., 2006) via COX-2 (Maussang et al., 2009b) and STAT3 (Slinger et al., 2010) in transfected NIH-3T3 cells and HCMV-infected glioblastoma cells (Maussang et al., 2006; Soroceanu et al., 2011).