SOX5 attenuates the migration and invasion of KSHV-infected cells by inhibiting EMT. A Decreases in the mRNA levels of vimentin, claudin, β-Catenin, Snai2, Slug, ZEB1 and N-cadherin accompanied by increases in E-cadherin and ZO-1 levels in iSLK-219 cells transfected with the pEGFP-SOX5 plasmid. B and C Western blot analysis detects the expression of EMT Markers. *P < 0.05; **P < 0.01; ***P < 0.001.