MMP9 and neoplasm: A relatively weak intensity of RPS27a (Fig. 8D, E), Ki-67 (Fig. 8F, G) and MMP-9 (Fig. 8H, I) staining was observed with RPS27a knockdown of xenograft tumor tissue, and a strong intensity of E-cadherin (Fig. 8J, K), p53 (Fig. 8L, M), MDM2 (Fig. 8N, O) and RPL11 (Fig. 8P, Q) was observed with RPS27a knockdown of xenograft tumor tissue.