Expressions of CD147, MMP-2 and MMP-9 in laryngeal carcinoma and its correlation with poor prognosis

The objectives of this study are to investigate the expressions of matrix metalloproteinase inducing factor (CD147), matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-9 (MMP-9) in laryngeal tumor tissues and its significant correlation with tumor infiltration, metastasis and prognosis. Laryngeal tumor tissue from 48 laryngeal cancer patients with complete clinical information was collected. The laryngitis tissue from 15 patients were collected as control group. Immunohistochemical analysis for CD147, MMP-2 and MMP-9 was performed for all the tissue. The results showed the expression rates of CD147, MMP-2 and MMP-9 in laryngeal carcinoma were 87.5 %, 75.0 % and 79.2 % respectively, significantly higher than those (26.7 %, 6.7 %, and 33.3 % respectively) in the control group are (P < 0.01). High expression of CD147, MMP-2 and MMP-9 related to the clinical stages and lymphatic metastasis of laryngeal carcinoma. Univariate survival analysis showed that the 5-year survival of laryngeal carcinoma patients with low expression of CD147, MMP-2 and MMP-9was 83.3 %, 83.3 % and 90 % respectively, while the patients with high expression had 5-year survival at 25 %, 7.7 % and 18.2 % respectively (P < 0.05). Multiple regression analysis showed that high expression of MMP-9 was independently associated with poor prognosis (P < 0.05). High expression of CD147, MMP-2 and MMP-9 were related with laryngeal carcinoma invasion and metastasis. High expressions of CD147, MMP-2 and MMP-9 were all predictive factors of poor prognosis of laryngeal carcinoma.