MiR-210-3p induces HIF transcriptional activity. U87MG cells were transfected with a HRE luciferase vector, along with either miR-210-3p overexpression - [(pBABE-miR210) or control (pBABE)] or inhibition - [(miR-210 inhibitor) or (control)] vectors, and HRE transcriptional activity was assayed (a). U87MG cells were transiently transfected with either a miR-210-3p over-expression vector (pBABE-miR-210) or the empty pBABE-puro parent vector (b) or with either a miR-210-3p inhibitor or control oligos (c), and VEGF/CA9 levels were determined by qRT-PCR. The graphical data points represent mean ± S.D. of at least three independent experiments. (*P > 0.01 and < 0.05; **P < 0.01). Error bars denote ± S. D.