Fig. 2

VEGF-A expressed higher in OSCC cell lines with accelerating proliferation and EMT. a RNA expressions of VEGF-A were measured in HOEC, SCC-25, TSCC1, and CAL-27 cell lines using RT-qPCR with normalizing to GAPDH and the statistical test was comparing each of the OSCC cell lines to the HOEC cell line, **P < 0.05. b RT-qPCR was assessed to evaluated level of VEGF-A after inhibition normalized with GAPDH and the statistical test was comparing siVEGF-A to siNC, **P < 0.05. c Cell viabilities were checked by CCK-8 in TSCC1 cell line with suppressed VEGF-A with the statistical test comparing siVEGF-A to siNC, **P < 0.05. d RT-qPCR was performed to check RNA levels of E-cadherin, N-cadherin, Vimentin, and Snail with normalizing to GAPDH and the statistical test was comparing E-cadherin, N-cadherin, Vimentin, and Snail in siVEGF-A group to E-cadherin, N-cadherin, Vimentin, and Snail in siNC group, **P < 0.05. Each experiment was repeated three times