Figure 5. mRNA expression of proliferative markers. mRNA expression profile of proliferative markers, PCNA, cyclin D1, K_i-67, and CDC20 genes of day 14 limbal, conjunctival, and oral cultured cells. Results were normalized with β-actin. All experiments were performed in triplicate using six samples per group (limbal, conjunctival, and oral). Significance denoted, p *<0.05, **<0.01, ***<0.005.