PROX1 knockdown increases transcripts associated with β-cell maturation in human EndoC-βH1 cells. qPCR results showing significant upregulation of transcripts associated with β-cell maturation, FGF signaling, and proliferation, after PROX1 knockdown (siPROX1) in human EndoC-βH1 cells. RNA used here was harvested 72 h posttransfection and data represent the mean (±SEM) of three independent experiments. SLC30A = SLC30A8, G6PC = G6PC2, and NEUD = NEUROD. *P < 0.05; **P < 0.01; ***P < 0.001.